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2.
Bone Joint J ; 101-B(9): 1063-1070, 2019 09.
Artigo em Inglês | MEDLINE | ID: mdl-31474149

RESUMO

AIMS: The primary aim of the study was to perform an analysis to identify the cost per quality-adjusted life-year (QALY) of robot-assisted unicompartmental knee arthroplasty (rUKA) relative to manual total knee arthroplasty (TKA) and unicompartmental knee arthroplasty (UKA) for patients with isolated medial compartment osteoarthritis (OA) of the knee. Secondary aims were to assess how case volume and length of hospital stay influenced the relative cost per QALY. PATIENTS AND METHODS: A Markov decision analysis was performed, using known parameters for costs, outcomes, implant survival, and mortality, to assess the cost-effectiveness of rUKA relative to manual TKA and UKA for patients with isolated medial compartment OA of the knee with a mean age of 65 years. The influence of case volume and shorter hospital stay were assessed. RESULTS: Using a model with an annual case volume of 100 patients, the cost per QALY of rUKA was £1395 and £1170 relative to TKA and UKA, respectively. The cost per QALY was influenced by case volume: a low-volume centre performing ten cases per year would achieve a cost per QALY of £7170 and £8604 relative to TKA and UKA. For a high-volume centre performing 200 rUKAs per year with a mean two-day length of stay, the cost per QALY would be £648; if performed as day-cases, the cost would be reduced to £364 relative to TKA. For a high-volume centre performing 200 rUKAs per year with a shorter length of stay of one day relative to manual UKA, the cost per QALY would be £574. CONCLUSION: rUKA is a cost-effective alternative to manual TKA and UKA for patients with isolated medial compartment OA of the knee. The cost per QALY of rUKA decreased with reducing length of hospital stay and with increasing case volume, compared with TKA and UKA. Cite this article: Bone Joint J 2019;101-B:1063-1070.


Assuntos
Artroplastia do Joelho/economia , Artroplastia do Joelho/métodos , Osteoartrite do Joelho/cirurgia , Idoso , Artroplastia do Joelho/estatística & dados numéricos , Análise Custo-Benefício , Feminino , Humanos , Tempo de Internação/economia , Tempo de Internação/estatística & dados numéricos , Masculino , Cadeias de Markov , Osteoartrite do Joelho/economia , Osteoartrite do Joelho/epidemiologia , Qualidade de Vida , Procedimentos Cirúrgicos Robóticos/economia , Procedimentos Cirúrgicos Robóticos/métodos , Procedimentos Cirúrgicos Robóticos/estatística & dados numéricos , Reino Unido/epidemiologia
3.
Bone Joint J ; 101-B(9): 1081-1086, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31474135

RESUMO

AIMS: The practice of alternating operating theatres has long been used to reduce surgeon idle time between cases. However, concerns have been raised as to the safety of this practice. We assessed the payments and outcomes of total knee arthroplasty (TKA) performed during overlapping and nonoverlapping days, also comparing the total number of the surgeon's cases and the total time spent in the operating theatre per day. MATERIALS AND METHODS: A retrospective analysis was performed on the Centers for Medicare & Medicaid Services (CMS) Limited Data Set (LDS) on all primary elective TKAs performed at the New England Baptist Hospital between January 2013 and June 2016. Using theatre records, episodes were categorized into days where a surgeon performed overlapping and nonoverlapping lists. Clinical outcomes, economic outcomes, and demographic factors were calculated. A regression model controlling for the patient-specific factors was used to compare groups. Total orthopaedic cases and aggregate time spent operating (time between skin incision and closure) were also compared. RESULTS: A total of 3633 TKAs were performed (1782 on nonoverlapping days; 1851 on overlapping days). There were no differences between the two groups for length of inpatient stay, payments, mortality, emergency room visits, or readmission during the 90-day postoperative period. The overlapping group had 0.74 fewer skilled nursing days (95% confidence interval (CI) -0.26 to -1.22; p < 0.01), and 0.66 more home health visits (95% CI 0.14 to 1.18; p = 0.01) than the nonoverlapping group. On overlapping days, surgeons performed more cases per day (5.01 vs 3.76; p < 0.001) and spent more time operating (484.55 minutes vs 357.17 minutes; p < 0.001) than on nonoverlapping days. CONCLUSION: The study shows that the practice of alternating operating theatres for TKA has no adverse effect on the clinical outcome or economic utilization variables measured. Furthermore, there is opportunity to increase productivity with alternating theatres as surgeons with overlapping cases perform more cases and spend more time operating per day. Cite this article: Bone Joint J 2019;101-B:1081-1086.


Assuntos
Artroplastia do Joelho/estatística & dados numéricos , Procedimentos Cirúrgicos Eletivos/estatística & dados numéricos , Salas Cirúrgicas/estatística & dados numéricos , Duração da Cirurgia , Adulto , Idoso , Idoso de 80 Anos ou mais , Artroplastia do Joelho/economia , Boston/epidemiologia , Centers for Medicare and Medicaid Services (U.S.)/estatística & dados numéricos , Bases de Dados Factuais/estatística & dados numéricos , Eficiência Organizacional/estatística & dados numéricos , Procedimentos Cirúrgicos Eletivos/economia , Feminino , Humanos , Tempo de Internação , Masculino , Medicare/estatística & dados numéricos , Pessoa de Meia-Idade , Salas Cirúrgicas/organização & administração , Avaliação de Resultados (Cuidados de Saúde) , Estudos Retrospectivos , Fatores de Tempo , Estados Unidos/epidemiologia
4.
Bone Joint J ; 101-B(9): 1087-1092, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31474144

RESUMO

AIMS: The aim of this study was to assess the effects of transferring patients to a specialized arthroplasty centre between the first and second stages (interstage) of prosthetic joint infection (PJI) of the knee. PATIENTS AND METHODS: A search of our institutional database was performed to identify patients having undergone two-stage revision total knee arthroplasty (TKA) for PJI. Two cohorts were created: continuous care (CC) and transferred care (TC). Baseline characteristics and outcomes were collected and compared between cohorts. RESULTS: A total of 137 patients were identified: 105 in the CC cohort (56 men, 49 women; mean age 67.9) and 32 in the TC cohort (17 men, 15 women; mean age 67.8 years). PJI organism virulence was greater in the CC cohort (36.2% vs 15.6%; p = 0.030). TC patients had a higher rate of persisting or recurrent infection (53.6% vs 13.4%; p < 0.001), soft-tissue complications (31.3 vs 14.3%; p = 0.030), and reduced requirement for porous metal augments (78.1% vs 94.3%; p = 0.006). Repeat first stage debridement after transfer led to greater need for plastic surgical procedures (58.3% vs 0.0%; p < 0.001). CONCLUSION: Patient transfer during the interstage of treatment for infected TKA leads to poorer outcomes compared with patients receiving all their treatment at a specialized arthroplasty centre. Cite this article: Bone Joint J 2019;101-B:1087-1092.


Assuntos
Artroplastia do Joelho/efeitos adversos , Artroplastia do Joelho/estatística & dados numéricos , Hospitais Especializados/estatística & dados numéricos , Transferência de Pacientes/estatística & dados numéricos , Complicações Pós-Operatórias/epidemiologia , Infecções Relacionadas à Prótese/epidemiologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Continuidade da Assistência ao Paciente/estatística & dados numéricos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/etiologia , Infecções Relacionadas à Prótese/etiologia , Reoperação/estatística & dados numéricos , Resultado do Tratamento
5.
Bone Joint J ; 101-B(9): 1071-1080, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31474146

RESUMO

AIMS: The aim of this study was to determine the long-term risk of undergoing knee arthroplasty in a cohort of patients with meniscal tears who had undergone arthroscopic partial meniscectomy (APM). PATIENTS AND METHODS: A retrospective national cohort of patients with a history of isolated APM was identified over a 20-year period. Patients with prior surgery to the same knee were excluded. The primary outcome was knee arthroplasty. Hazard ratios (HRs) were adjusted by patient age, sex, year of APM, Charlson comorbidity index, regional deprivation, rurality, and ethnicity. Risk of arthroplasty in the index knee was compared with the patient's contralateral knee (with vs without a history of APM). A total of 834 393 patients were included (mean age 50 years; 37% female). RESULTS: Of those with at least 15 years of follow-up, 13.49% (16 256/120 493; 95% confidence interval (CI) 13.30 to 13.69) underwent subsequent arthroplasty within this time. In women, 22.07% (95% CI 21.64 to 22.51) underwent arthroplasty within 15 years compared with 9.91% of men (95% CI 9.71 to 10.12), corresponding to a risk ratio (RR) of 2.23 (95% CI 2.16 to 2.29). Relative to the general population, patients with a history of APM were over ten times more likely (RR 10.27; 95% CI 10.07 to 10.47) to undergo arthroplasty rising to almost 40 times more likely (RR 39.62; 95% CI 27.68 to 56.70) at a younger age (30 to 39 years). In patients with a history of APM in only one knee, the risk of arthroplasty in that knee was greatly elevated in comparison with the contralateral knee (no APM; HR 2.99; 95% CI 2.95 to 3.02). CONCLUSION: Patients developing a meniscal tear undergoing APM are at greater risk of knee arthroplasty than the general population. This risk is three-times greater in the patient's affected knee than in the contralateral knee. Women in the cohort were at double the risk of progressing to knee arthroplasty compared with men. These important new reference data will inform shared decision making and enhance approaches to treatment, prevention, and clinical surveillance. Cite this article: Bone Joint J 2019;101-B:1071-1080.


Assuntos
Artroplastia do Joelho/estatística & dados numéricos , Osteoartrite do Joelho/epidemiologia , Lesões do Menisco Tibial/epidemiologia , Adulto , Fatores Etários , Idoso , Progressão da Doença , Inglaterra/epidemiologia , Feminino , Seguimentos , Humanos , Articulação do Joelho/cirurgia , Masculino , Pessoa de Meia-Idade , Osteoartrite do Joelho/etiologia , Osteoartrite do Joelho/cirurgia , Estudos Retrospectivos , Risco , Fatores de Risco , Fatores Sexuais , Lesões do Menisco Tibial/complicações , Lesões do Menisco Tibial/cirurgia
6.
Orthop Clin North Am ; 50(4): 425-432, 2019 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31466659

RESUMO

The number of total knee arthroplasty (TKA) surgeries is expected to soar, and an effective nonoperative rehabilitation program is needed. We began treating patients with knee osteoarthritis with a range-of-motion (ROM) -based rehabilitation program that was delivered systematically, starting with ROM exercises for knee extension, followed by exercises for flexion and swelling reduction, before starting a strengthening program. In a group of 396 patients, significant improvements were made in knee extension, flexion, and KOOS subjective scores for pain, symptoms, activities of daily living, sport, and quality of life. Furthermore, the program prevented 76% of patients from undergoing TKA surgery.


Assuntos
Terapia por Exercício/métodos , Osteoartrite do Joelho/fisiopatologia , Osteoartrite do Joelho/radioterapia , Atividades Cotidianas , Artroplastia do Joelho/estatística & dados numéricos , Terapia por Exercício/instrumentação , Feminino , Humanos , Masculino , Qualidade de Vida , Amplitude de Movimento Articular , Recuperação de Função Fisiológica , Resultado do Tratamento
7.
Rev Assoc Med Bras (1992) ; 65(7): 1001-1006, 2019 Aug 05.
Artigo em Inglês | MEDLINE | ID: mdl-31389513

RESUMO

OBJECTIVE: Analyze data regarding total knee arthroplasty (TKA) carried out by the Public Health System (SUS) in the state of São Paulo from 2003 to 2010 and determine the projections expected for 2030. METHODS: A cross-sectional study (observational). We analyzed 10,952 patients who underwent primary total knee arthroplasty (PTKA) and revision total knee arthroplasty (RTKA) in the state of São Paulo between 2003 and 2010. The collection of data based on ICD-10 and HAA (Hospital Admission Authorization) were provided by the Tabnet and Sigtap software (Management System for the Table of Procedures, Medications, and OPM by SUS). The following variables were analyzed: gender, number of PTKAs and RTKAs, and their projections. The information collected formed a database developed in Excel® for Windows, and the statistical analysis was performed by the Stata® 11 SE and Minitab 16 software. RESULTS: There was a significant difference in the prevalence of TKA between genders (p<0.0001); most of the patients were females (7,891; 72%). The projection for 2030 when compared with the first year of the series, 2003, indicates a growth of 428% for PTKA and 1,380% for RTKA, with a greater increase percentage of RTKA in males than in females (1,558% and 1,318%, respectively). CONCLUSION: The proportions of the RTKA projection are much greater than those of PTKA by 2030, with a greater percentage of increase of RTKA in males than in females.


Assuntos
Artroplastia do Joelho/estatística & dados numéricos , Artroplastia do Joelho/tendências , Distribuição por Idade , Artroplastia do Joelho/métodos , Brasil , Estudos Transversais , Feminino , Humanos , Masculino , Fatores Sexuais , Estatísticas não Paramétricas , Fatores de Tempo
8.
Orthop Nurs ; 38(4): 262-269, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31343631

RESUMO

BACKGROUND: Standardized approaches to care and care pathways for patients with joint replacement have been shown to decrease length of stay (LOS), improve patient participation in education, decrease patient anxiety while improving perception of care, and lead to overall efficiency and improved care and outcomes. PURPOSE: The purpose of this study was to determine whether implementation of a standardized bundle approach to care influenced the outcomes after total hip or total knee arthroplasty (THA or TKA). METHODS: A retrospective, quasi-experimental before- and after-design study was used to evaluate the impact of the intervention. Two hospitals implemented a standardized bundle of care for patients undergoing THA or TKA that included preoperative patient education, day of surgery mobilization, and a total joint group physical therapy session (Full Bundle). Data analyses were completed on a convenience sample of 2,200 patients who underwent THA or TKA. Outcomes data measured were LOS, discharge disposition, costs, and readmission rate. RESULTS: Patients receiving the Full Bundle had significant reduction in LOS of roughly 1 day (OR = 1.687, 95% CI [1.578, 1.797]) versus group not receiving all elements (OR = 2.706; 95% CI [2.623, 2.789]). Full Bundle patients were 6 times more likely to be discharged home compared with the Partial Bundle group (OR = 6.01, 95% CI [4.01, 9.03]). Full Bundle group had significantly lower total direct costs, F(1) = 4.06, p = .046, partial η = 0.003. There were no differences in readmission rates between the 2 groups. CONCLUSION: Patients who had all elements of the THA/TKA bundle had the best outcomes. By improving efficiencies of care through the use of the bundle, the 2 hospitals positively impacted the care and outcomes of THA and TKA patients.


Assuntos
Avaliação de Resultados (Cuidados de Saúde)/normas , Pacotes de Assistência ao Paciente/normas , Complicações Pós-Operatórias/epidemiologia , Resultado do Tratamento , Idoso , Artroplastia de Quadril/métodos , Artroplastia de Quadril/normas , Artroplastia de Quadril/estatística & dados numéricos , Artroplastia do Joelho/métodos , Artroplastia do Joelho/normas , Artroplastia do Joelho/estatística & dados numéricos , Distribuição de Qui-Quadrado , Procedimentos Cirúrgicos Eletivos/métodos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Avaliação de Resultados (Cuidados de Saúde)/estatística & dados numéricos , Pacotes de Assistência ao Paciente/instrumentação , Pacotes de Assistência ao Paciente/métodos , Complicações Pós-Operatórias/etiologia , Estudos Retrospectivos , Fatores de Risco , Sudeste dos Estados Unidos/epidemiologia
9.
Bone Joint J ; 101-B(7_Supple_C): 77-83, 2019 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-31256640

RESUMO

AIMS: Anterior cruciate ligament (ACL) and multiligament knee (MLK) injuries increase the risk of development of knee osteoarthritis and eventual need for total knee arthroplasty (TKA). There are limited data regarding implant use and outcomes in these patients. The aim of this study was to compare the use of constrained implants and outcomes among patients undergoing TKA with a history of prior knee ligament reconstruction (PKLR) versus a matched cohort of patients undergoing TKA with no history of PKLR. PATIENTS AND METHODS: Patients with a history of ACL or MLK reconstruction who underwent TKA between 2007 and 2017 were identified in a single-institution registry. There were 223 patients who met inclusion criteria (188 ACL reconstruction patients, 35 MLK reconstruction patients). A matched cohort, also of 223 patients, was identified based on patient age, body mass index (BMI), sex, and year of surgery. There were 144 male patients and 79 female patients in both cohorts. Mean age at the time of TKA was 57.2 years (31 to 88). Mean BMI was 29.7 kg/m2 (19.5 to 55.7). RESULTS: There was a significantly higher use of constrained implants among patients with PKLR (76 of 223, 34.1%) compared with the control group (40 of 223, 17.9%; p < 0.001). Subgroup analysis showed a higher use of constrained implants among patients with prior MLK reconstruction (21 of 35, 60.0%) compared with ACL reconstruction (55 of 188, 29.3%; p < 0.001). Removal of hardware was performed in 69.5% of patients with PKLR. Mean operative time (p < 0.001) and tourniquet time (p < 0.001) were longer in patients with PKLR compared with controls. There were no significant differences in rates of deep vein thrombosis, pulmonary embolism, infection, transfusion, postoperative knee range of movement (ROM), or need for revision surgery. There was no significant difference in preoperative or postoperative Knee Injury and Osteoarthritis Outcome Score for Joint Replacement (KOOS, JR) scores between groups. CONCLUSION: Results of this study suggest a history of PKLR results in increased use of constrained implants but no difference in postoperative knee ROM, patient-reported outcomes, or incidence of revision surgery. Cite this article: Bone Joint J 2019;101-B(7 Supple C):77-83.


Assuntos
Lesões do Ligamento Cruzado Anterior/cirurgia , Ligamento Cruzado Anterior/cirurgia , Artroplastia do Joelho/estatística & dados numéricos , Osteoartrite do Joelho/etiologia , Medidas de Resultados Relatados pelo Paciente , Adulto , Idoso , Idoso de 80 Anos ou mais , Lesões do Ligamento Cruzado Anterior/complicações , Reconstrução do Ligamento Cruzado Anterior/métodos , Artroplastia do Joelho/métodos , Feminino , Seguimentos , Humanos , Articulação do Joelho/cirurgia , Masculino , Pessoa de Meia-Idade , Duração da Cirurgia , Osteoartrite do Joelho/diagnóstico , Osteoartrite do Joelho/cirurgia , Qualidade de Vida , Reoperação , Estudos Retrospectivos
10.
Artigo em Alemão | MEDLINE | ID: mdl-31273415

RESUMO

BACKGROUND: Little is known about the utilization of individual health services performed by a physician (IGeL) and the services and supplements provided outside a doctor's office (MuPaP) for osteoarthritis patients. OBJECTIVES: The aims of this study are to analyze the use of osteoarthritis-specific IGeL and MuPaP as well as predictors for their utilization. MATERIALS AND METHODS: For this cross-sectional study, claims data was used to identify all persons with hip, knee, or polyarticular osteoarthritis in 2014 (n = 657,807). A random sample (n = 8995) was sent a questionnaire about their usage of IGeL and MuPaP. Furthermore, the type of physicians conducting or recommending services was evaluated. Applying multivariable logistic regression, predictors associated with the utilization of IGeL, MuPaP, and overall individual health services were analyzed. RESULTS: After validating the data and osteoarthritis diagnosis, 2363 persons were enrolled (mean age: 65.5 years, 72% female). In the last 12 months, 39% of patients had used at least one IGeL (MuPaP: 76%), with 86% being primarily performed by orthopedists (MuPaP: 88% patient self-motivated). Knee osteoarthritis was associated with increased utilization of IGeL. Having female gender, higher income, residence in Western Germany, higher disease burden, and lower satisfaction with the healthcare system were influences on the use of overall individual health services. CONCLUSIONS: Since patients with high disease burden in particular tend to use these therapies with varying treatment success, detailed information, especially about the risks and existing evidence, should be a prerequisite for trustworthy doctor-patient relationships.


Assuntos
Efeitos Psicossociais da Doença , Gastos em Saúde/estatística & dados numéricos , Formulário de Reclamação de Seguro/estatística & dados numéricos , Osteoartrite do Quadril/terapia , Osteoartrite do Joelho/terapia , Osteoartrite/terapia , Demandas Administrativas em Assistência à Saúde , Idoso , Artroplastia de Quadril/estatística & dados numéricos , Artroplastia do Joelho/estatística & dados numéricos , Estudos Transversais , Feminino , Alemanha , Acesso aos Serviços de Saúde , Pesquisa sobre Serviços de Saúde , Humanos , Masculino , Osteoartrite/diagnóstico , Classe Social , Inquéritos e Questionários
11.
Medicine (Baltimore) ; 98(29): e16438, 2019 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-31335698

RESUMO

In many types of surgery, obesity may influence patient selection, prognosis, and/or management. Quantifying the accuracy of the coding of obesity and other prognostic factors is important for the design and interpretation of studies of surgical outcomes based on administrative healthcare data. This study assessed the validity of obesity diagnoses recorded in insurance claims data in selected surgical populations.This was a retrospective, observational study. Deidentified electronic health record (EHR) and linked administrative claims data were obtained for US patients age ≥20 years who underwent a qualifying surgical procedure (bariatric surgery, total knee arthroplasty [TKA], cardiac ablation, or hernia repair) in 2014Q1-2017Q1 (first = index). Patients' body mass index (BMI) as coded in the claims data (error-prone measure) during the index procedure or 180d pre-index was compared with their measured BMI as recorded in the EHR (criterion standard) to estimate the sensitivity and positive predictive value (PPV) of obesity diagnosis codes.Among patients who underwent bariatric surgery (N = 1422), TKA (N = 8670), cardiac ablation (N = 167), or hernia repair (N = 5450), obesity was present in 98%, 63%, 52%, and 54%, respectively, based on measured BMI. PPVs of obesity diagnosis codes were high: 99.3%, 96.0%, 92.8%, and 94.1% in bariatric surgery, TKA, cardiac ablation, and hernia repair, respectively. The sensitivity of obesity diagnoses was: 99.8%, 46.2%, 41.3%, and 42.3% in bariatric surgery, TKA, cardiac ablation, and hernia repair, respectively. Among false-positive patients diagnosed as obese but with measured BMI <30, the proportion with a BMI ≥28 was 40.0%, 67.6%, 60.7%, and 65.8% for bariatric surgery, TKA, cardiac ablation, and hernia repair, respectively.Our data indicate that obesity is highly prevalent in many surgical populations, obesity diagnosis codes have high PPVs, but also obesity is generally undercoded in claims data. Quantifying the validity of diagnosis codes for obesity and other important prognostic factors is important for the design and interpretation of studies of surgical outcomes based on administrative data. Further research is needed to determine the extent to which undercoding of BMI and obesity can be addressed through the use of proxies that may be better documented in claims data.


Assuntos
Artroplastia do Joelho , Cirurgia Bariátrica , Ablação por Cateter , Codificação Clínica , Herniorrafia , Obesidade/diagnóstico , Adulto , Idoso , Artroplastia do Joelho/métodos , Artroplastia do Joelho/estatística & dados numéricos , Cirurgia Bariátrica/métodos , Cirurgia Bariátrica/estatística & dados numéricos , Índice de Massa Corporal , Ablação por Cateter/métodos , Ablação por Cateter/estatística & dados numéricos , Codificação Clínica/métodos , Codificação Clínica/normas , Registros Eletrônicos de Saúde/estatística & dados numéricos , Feminino , Herniorrafia/métodos , Herniorrafia/estatística & dados numéricos , Humanos , Masculino , Pessoa de Meia-Idade , Obesidade/epidemiologia , Avaliação de Resultados (Cuidados de Saúde)/estatística & dados numéricos , Seleção de Pacientes , Prevalência , Prognóstico , Reprodutibilidade dos Testes , Estudos Retrospectivos , Estados Unidos/epidemiologia
12.
Medicine (Baltimore) ; 98(30): e16609, 2019 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-31348307

RESUMO

BACKGROUND: Theoretical considerations suggest that total knee arthroplasty (TKA) is technically more challenging after high tibial osteotomy (HTO), resulting in inferior results compared to primary TKA. However, several studies on this issue have shown contradictory results. The purpose of this meta-analysis to compare survivorship and clinical outcomes between TKA with and without previous HTO. METHODS: We reviewed studies that evaluated pain and function scores, range of motion (ROM), operation time, Insall-Salvati (IS) ratio, complications, and survival rates in patients treated with TKA with previous HTO or with primary TKA with short- to midterm (<10 years) or long-term (>10 years) follow-up. RESULTS: Fifteen studies were included in the meta-analysis. There were no significant differences between TKA with and without previous HTO in pain score (95% CI: -0.27 to 0.29; P = .94), function score (95% CI: -0.08 to 0.24; P = .32), operation time (95% CI: -5.43 to 26.85; P = .19), IS ratio (95% CI: -0.03 to 0.08; P = .40), complication rates (TKA with previous HTO, 62/1717; primary TKA, 610/31386; OR 1.31, 95% CI: 0.97-1.77; P = .08), and short- to midterm survival rates (TKA with previous HTO, 1860/2009; primary TKA, 37848/38765; OR 0.55, 95% CI: 0.28-1.10; P = .09). Conversely, ROM (95% CI: -7.40 to -1.26; P = .006) and long-term survival rates (TKA with previous HTO, 1426/1523; primary TKA, 29810/31201; OR 0.71, 95% CI: 0.57-0.89; P = .003) were significantly different between the two groups. In addition, both groups had substantial proportions of knees exhibiting short- to midterm survivorship (92.6% by TKA with previous HTO and 97.6% by primary TKA) and long-term survivorship (93.6% by TKA with previous HTO and 95.5% by primary TKA). CONCLUSIONS: This meta-analysis suggests that a previous HTO affected ROM or survival of TKA in the long-term even though both groups have equivalent clinical outcomes and complications. Thus, orthopedic surgeons should offer useful information regarding the advantages and disadvantages of both procedures to patients, and should provide advice on the generally higher risk of revision after TKA with previous HTO at long-term follow-up when counseling patients.


Assuntos
Artroplastia do Joelho/métodos , Artroplastia do Joelho/estatística & dados numéricos , Osteotomia/métodos , Tíbia/cirurgia , Artroplastia do Joelho/mortalidade , Humanos , Duração da Cirurgia , Complicações Pós-Operatórias/epidemiologia , Amplitude de Movimento Articular , Análise de Sobrevida
13.
Medicine (Baltimore) ; 98(23): e15964, 2019 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-31169724

RESUMO

Knee osteoarthritis is a degenerative disease occurring in elderly people worldwide. For severe knee osteoarthritis, total knee replacement is the final treatment option. Traditional Chinese medicine (TCM) is popular in Taiwan and has been shown to exert therapeutic effects on knee osteoarthritis. We investigated the long-term clinical effects of TCM for reducing the need for total knee replacement risk in patients with knee osteoarthritis.We used the National Health Insurance Research Database to conduct a retrospective study of patients with knee osteoarthritis between 1997 and 2003 in Taiwan. Data from the date of diagnosis of knee osteoarthritis to total knee replacement were assessed using the Cox regression proportional hazards model, and the Kaplan-Meier survival curve was used to determine the association between total knee replacement risk and TCM use.A total of 34,231 patients with knee osteoarthritis, who were diagnosed by orthopedic or rehabilitation physicians between 1997 and 2003 were included. Patients were categorized into 2 groups: 26,257 (76.7%) were TCM users and 7974 (23.3%) were TCM non-users. The mean follow-up period was 9.26 years. Multivariate regression demonstrated that using TCM may decrease the need for total knee replacement in patients with knee osteoarthritis (adjusted hazards ratio [aHR] = 0.69, 95% confidence interval [95% CI]: 0.64-0.77) compared with TCM non-users. A relationship between longer TCM use and reduced total knee replacement use was observed, especially in patients who used TCM for ≥120 days (aHR = 0.49, 95% CI: 0.42-0.56).The results of this study suggested that TCM is associated with a reduced risk of total knee replacement in patients with knee osteoarthritis, with enhanced benefits from longer durations of TCM use.


Assuntos
Artroplastia do Joelho/estatística & dados numéricos , Medicina Tradicional Chinesa/métodos , Osteoartrite do Joelho/terapia , Idoso , Bases de Dados Factuais , Feminino , Humanos , Seguro Saúde , Masculino , Pessoa de Meia-Idade , Modelos de Riscos Proporcionais , Estudos Retrospectivos , Fatores de Risco , Taiwan , Fatores de Tempo , Resultado do Tratamento
14.
Bone Joint J ; 101-B(6_Supple_B): 23-30, 2019 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-31146569

RESUMO

AIMS: The aim of this study was to determine if the Oxford Knee and Hip Score (OKHS) can accurately predict when a primary knee or hip referral is deemed nonsurgical versus surgical by the surgeon during their first consultation, and to identify nonsurgical OKHS screening thresholds. PATIENTS AND METHODS: We retrospectively reviewed pre-consultation OKHS for all consecutive primary total knee arthroplasty (TKA) and total hip arthroplasty (THA) consultations of a single surgeon over three years. The 1436 knees (1016 patients) and 478 hips (388 patients) included were categorized based on the surgeon's decision into those offered surgery during the first consultation versus those not (nonsurgical). Spearman's rank correlation coefficients and receiver operating characteristic (ROC) curve analysis were performed. RESULTS: Oxford Scores were better for the nonsurgical cohorts (p < 0.001) and correlated with the surgical decision (p < 0.001). ROC area under the curve values for knees (0.83, 95% confidence intervals (CI) 0.81 to 0.85) and hips (0.87, 95% CI 0.84 to 0.91) were excellent. A conservative and effective threshold for knees is Oxford Knee Score (OKS) > 32 points (sensitivity = 0.997, negative predictive value (NPV) = 0.992) and for hips is Oxford Hip Score (OHS) > 34 points (sensitivity = 0.997, NPV = 0.978). Severable potential lower OKHS thresholds were identified. CONCLUSION: Pre-consultation OKHS demonstrate good ability to predict when a primary TKA or THA referral will be deemed nonsurgical in a single surgeon's practice. Multiple OKHS thresholds can effectively screen out nonsurgical referrals. Cite this article: Bone Joint J 2019;101-B(6 Supple B):23-30.


Assuntos
Artroplastia de Quadril/estatística & dados numéricos , Artroplastia do Joelho/estatística & dados numéricos , Seleção de Pacientes , Índice de Gravidade de Doença , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Osteoartrite do Quadril/cirurgia , Osteoartrite do Joelho/cirurgia , Cuidados Pré-Operatórios/métodos , Encaminhamento e Consulta , Estudos Retrospectivos
15.
Medicine (Baltimore) ; 98(21): e15723, 2019 May.
Artigo em Inglês | MEDLINE | ID: mdl-31124952

RESUMO

This retrospective cohort study evaluated the effects of different frequencies of physical therapy intervention on the total knee arthroplasty (TKA) and total hip arthroplasty (THA) risk of osteoarthritis (OA) patients.We sampled 438,833 insurants from Taiwan National Health Insurance Research Database for patients diagnosed as having OA during 2000 to 2013. OA who received physical therapy within in the first year of OA diagnosis were divided based on the number of sessions they received in that first year: >24, 13-23, and <12 sessions.The results revealed that the TKA and THA incidence rates among patients aged 60 to 80 years were respectively 3.5% and 0.9% in the >24 cohort and 4.9% and 1.4% (all P < .001) in the comparison cohort. Moreover, the HRs of TKA and THA in the >24 cohort were 0.77 (0.67-0.87, P < .001) and 0.71 (0.53-0.96, P = .024), respectively. By contrast, no significant differences were noted between the 13-23 and <12 cohorts and their respective comparison cohorts.In conclusion, our study results indicated that elderly patients aged 60 to 80 years who underwent >24 physical therapy sessions within 1 year of receiving an OA diagnosis exhibited reduced of TKA and THA risks.


Assuntos
Artroplastia de Quadril/estatística & dados numéricos , Artroplastia do Joelho/estatística & dados numéricos , Osteoartrite do Quadril/reabilitação , Osteoartrite do Joelho/reabilitação , Modalidades de Fisioterapia/estatística & dados numéricos , Adolescente , Adulto , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Comorbidade , Feminino , Humanos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Osteoartrite do Quadril/cirurgia , Osteoartrite do Joelho/cirurgia , Estudos Retrospectivos , Fatores Sexuais , Taiwan , Tempo para o Tratamento , Adulto Jovem
16.
Clin Interv Aging ; 14: 681-688, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31043774

RESUMO

Objective: The population of Japan is aging rapidly, and, since the aging of patients who undergo total knee arthroplasty (TKA) is also expected, it is necessary to determine the efficacy and safety of TKA among old adult patients. Methods: This study retrospectively analyzed the cases of patients who underwent a primary TKA for osteoarthritis at Bange Kosei General Hospital between January 2009 and June 2014 and were postoperatively followed-up for ≥1 year. Among the 2,945 knees of the 1,968 patients, 1,003 knees of 679 patients aged ≥80 years at the time of surgery were designated as the older group, and we compared their cases with those of the younger group of 1,044 knees of 673 patients aged <75 years. Results: The rates of improvement of the Japanese Orthopaedic Association (JOA) score were not significantly different between the older and younger groups. Postoperative ranges of motion were significantly improved in both groups. The number of postoperative days of hospital stay in the older group was 2 days longer than that of the younger group. Concerning postoperative complications, confusion, delayed wound healing, and acute heart failure were significantly more frequent in the older group. The frequencies of pneumonia, cerebral infarction, peroneal nerve palsy, and bedsore did not differ significantly. Loosening of implants was observed: older group, n=0 joints; younger group, n=5 joints. The number of prosthetic joint infections: older group, n=5; younger group, n=2 (non-significant). Conclusion: The rate of improvement in the JOA score did not differ significantly between the groups. TKA is an effective and safe treatment for osteoarthritis, even in old adult patients, when the surgical indication is based on careful preoperative screening and attention to specific postoperative complications.


Assuntos
Osteoartrite do Joelho , Complicações Pós-Operatórias , Idoso , Idoso de 80 Anos ou mais , Artroplastia do Joelho/estatística & dados numéricos , Feminino , Humanos , Japão/epidemiologia , Masculino , Osteoartrite do Joelho/epidemiologia , Osteoartrite do Joelho/cirurgia , Avaliação de Processos e Resultados (Cuidados de Saúde) , Complicações Pós-Operatórias/classificação , Complicações Pós-Operatórias/diagnóstico , Complicações Pós-Operatórias/epidemiologia , Amplitude de Movimento Articular , Estudos Retrospectivos
17.
Medicine (Baltimore) ; 98(18): e15513, 2019 May.
Artigo em Inglês | MEDLINE | ID: mdl-31045842

RESUMO

INTRODUCTION: Over the last few decades, the concepts of minimally invasive surgery and enhanced recovery after surgery (ERAS) protocols have been introduced into the field of total joint arthroplasty (TJA), and tranexamic acid (TXA) has been widely used in TJA. Modern-day surgical techniques and perioperative care pathways of TJA have experienced unexpected improvements. Recently, the necessity of the practice of ordering routine postoperative laboratory tests for patients undergoing primary TJA has been challenged, especially in the context of implementation of ERAS protocols in TJA. These studies have consistently suggested that routine postoperative laboratory tests are not necessary in modern-day primary, unilateral total hip arthroplasty (THA) or total knee arthroplasty (TKA), and laboratory tests after surgery should only be obtained for patients with risk factors. However, it remains unclear whether routine postoperative laboratory tests after THA and TKA remains justified in the Chinese patient population. Therefore, we developed this study to address this issue. METHODS AND ANALYSIS: This retrospective cohort study will include adult patients who underwent primary unilateral THA or TKA and received multimodal perioperative care pathways according to ERAS protocols. The following patient data will be collected from the electronic medical record system: patients' demographics, preoperative and postoperative laboratory values, operation time, intraoperative blood loss, TXA use, tourniquet use, postoperative length of stay, and any medical intervention directly related to abnormal laboratory values. The main study outcomes are the incidence of acute anemia requiring transfusion and incidence of hypoalbuminemia requiring albumin supplementation. The secondary outcomes are the rates of acute kidney injury, incidence of abnormal serum sodium level, incidence of abnormal serum potassium level, and incidence of abnormal serum calcium level. These clinical data will be analyzed to determine the incidence of abnormal postoperative laboratory values following primary unilateral THA and TKA; to clarify the frequency of any medical intervention directly related to abnormal postoperative laboratory values; and to identify risk factors that predispose patients to have abnormal postoperative laboratory results. STUDY REGISTRATION: Chinese Clinical Trial Registry (http://www.chictr.org.cn): ChiCTR1900020690.


Assuntos
Artroplastia de Quadril/reabilitação , Artroplastia do Joelho/reabilitação , Técnicas de Laboratório Clínico/normas , Cuidados Pós-Operatórios/normas , Complicações Pós-Operatórias/diagnóstico , Adulto , Anemia/diagnóstico , Anemia/epidemiologia , Anemia/etiologia , Antifibrinolíticos/uso terapêutico , Artroplastia de Quadril/estatística & dados numéricos , Artroplastia do Joelho/estatística & dados numéricos , Técnicas de Laboratório Clínico/métodos , Protocolos Clínicos/normas , Feminino , Humanos , Hipoalbuminemia/diagnóstico , Hipoalbuminemia/epidemiologia , Hipoalbuminemia/etiologia , Incidência , Masculino , Pessoa de Meia-Idade , Cuidados Pós-Operatórios/métodos , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/etiologia , Período Pós-Operatório , Projetos de Pesquisa , Estudos Retrospectivos , Fatores de Risco , Ácido Tranexâmico/uso terapêutico
18.
Inquiry ; 56: 46958019837438, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30947603

RESUMO

The objective of this study was to examine variations in the determinants of joint replacement (JR) across gender and age, with emphasis on the role of social support and family dynamics. We analyzed data from the US Health and Retirement Study (1998-2010) on individuals aged 45 or older with no prior receipt of JR. We used logistic regression to analyze the probability of receiving knee or hip replacement by gender and age (<65, 65+). We estimated the effect of demographic, health needs, economic, and familial support variables on the rate of JR. We found that being married/partnered with a healthy spouse/partner is positively associated with JR utilization in both age groups (65+ group OR: 1.327 and <65 group OR: 1.476). While this finding holds for men, it is not statistically significant for women. Among women younger than 65, having children younger than 18 lowers the odds (OR: 0.201) and caring for grandchildren increases the odds (1.364) of having a JR. Finally, elderly women who report availability of household assistance from a child have higher odds of receiving a JR as compared with elderly women without a child who could assist (OR: 1.297). No effect of available support from children was observed for those below 65 years old and elderly men. Our results show that intrafamily dynamics and familial support are important determinants of JR; however, their effects vary by gender and age. Establishing appropriate support mechanisms could increase access to cost-effective JR among patients in need of surgery.


Assuntos
Artroplastia de Quadril/estatística & dados numéricos , Artroplastia do Joelho/estatística & dados numéricos , Relações Familiares/psicologia , Apoio Social , Fatores Etários , Idoso , Criança , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Fatores Sexuais
19.
Acta Orthop ; 90(2): 179-186, 2019 04.
Artigo em Inglês | MEDLINE | ID: mdl-30973090

RESUMO

Background and purpose - Up to 20% of patients are dissatisfied after total knee arthroplasty (TKA), mainly because of pain and restricted physical function. We developed a prediction model for 6-month knee range of motion, knee pain, and walking limitations in patients undergoing TKA surgery. Patients and methods - We performed a prospective cohort study of 4,026 patients who underwent elective, primary TKA between July 2013 and July 2017. Candidate predictors included demographic, clinical, psychosocial, and preoperative outcome measures. The outcomes of interest were (i) knee extension and flexion range of motion, (ii) knee pain rated on a 5-point ordinal scale, and (iii) self-reported maximum walk time at 6 months post TKA. For each outcome, we fitted a multivariable proportional odds regression model with bootstrap internal validation. Results - At 6 months post TKA, around 5% to 20% of patients had a flexion contracture ³ 10°, range of motion < 90°, moderate to severe knee pain, or a maximum walk time £â€¯15 minutes. The model c-indices (the probabilities to correctly discriminate between 2 patients with different levels of follow-up TKA outcomes) when evaluating these patients were 0.71, 0.79, 0.65, and 0.76, respectively. Each postoperative outcome was strongly influenced by the same outcome measure obtained preoperatively (all p-values < 0.001). Additional statistically significant predictors were age, sex, race, education level, diabetes mellitus, preoperative use of gait aids, contralateral knee pain, and psychological distress (all p-values < 0.001). Interpretation - We have developed models to predict, for individual patients, their likely post-TKA levels of knee extension and flexion range of motion, knee pain, and walking limitations. After external validation, they can potentially be used preoperatively to identify at-risk patients and to help patients set more realistic expectations about surgical outcomes.


Assuntos
Artralgia , Artroplastia do Joelho , Articulação do Joelho/fisiopatologia , Limitação da Mobilidade , Osteoartrite do Joelho , Complicações Pós-Operatórias , Amplitude de Movimento Articular , Idoso , Artralgia/diagnóstico , Artralgia/etiologia , Artroplastia do Joelho/efeitos adversos , Artroplastia do Joelho/métodos , Artroplastia do Joelho/estatística & dados numéricos , Feminino , Humanos , Articulação do Joelho/cirurgia , Masculino , Pessoa de Meia-Idade , Osteoartrite do Joelho/epidemiologia , Osteoartrite do Joelho/cirurgia , Avaliação de Resultados (Cuidados de Saúde) , Período Perioperatório/métodos , Período Perioperatório/estatística & dados numéricos , Complicações Pós-Operatórias/diagnóstico , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/fisiopatologia , Prognóstico , Medição de Risco/métodos , Taiwan/epidemiologia
20.
J Bone Joint Surg Am ; 101(5): 412-420, 2019 Mar 06.
Artigo em Inglês | MEDLINE | ID: mdl-30845035

RESUMO

BACKGROUND: Surgeons may "usually" resurface the patella during total knee arthroplasty (TKA), "rarely" resurface, or "selectively" resurface on the basis of certain criteria. It is unknown which of these 3 strategies yields superior outcomes. Utilizing New Zealand Joint Registry data, we investigated (1) what proportion of surgeons employs each of the 3 patellar resurfacing strategies, (2) which strategy is associated with the lowest overall revision rate, and (3) which strategy is associated with the highest 6-month and 5-year Oxford Knee Score (OKS). METHODS: Two hundred and three surgeons who performed a total of 57,766 primary TKAs from 1999 to 2015 were categorized into the 3 surgeon strategies on the basis of how often they resurfaced the patella during primary total knee arthroplasty; with "rarely" defined as <10% of the time, "selectively" as ≥10% to ≤90%, and "usually" as >90%. For each strategy, the cumulative incidence of all-cause revision was calculated and utilized to construct Kaplan-Meier survival curves. The mean 6-month and 5-year postoperative OKS for each group were utilized for comparison. RESULTS: Overall, 57% of surgeons selectively resurfaced, 37% rarely resurfaced, and 7% usually resurfaced. The usually resurfacing group was associated with the highest mean OKS at both 6 months (38.57; p < 0.001) and 5 years postoperatively (41.34; p = 0.029), followed by the selectively resurfacing group (6-month OKS, 37.79; 5-year OKS, 40.87) and the rarely resurfacing group (6-month OKS, 36.92; 5-year OKS, 40.02). Overall, there was no difference in the revision rate per 100 component years among the rarely (0.46), selectively (0.52), or usually (0.46) resurfacing groups (p = 0.587). Posterior-stabilized TKAs that were performed by surgeons who selectively resurfaced had a lower revision rate (0.54) than those by surgeons who usually resurfaced (0.64) or rarely resurfaced (0.74; p < 0.001). CONCLUSIONS: Usually resurfacing the patella was associated with improved patient-reported outcomes, but there was no difference in overall revision rates among the 3 strategies. LEVEL OF EVIDENCE: Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence.


Assuntos
Artroplastia do Joelho/métodos , Prótese do Joelho , Patela/cirurgia , Idoso , Artroplastia do Joelho/estatística & dados numéricos , Feminino , Humanos , Masculino , Nova Zelândia , Falha de Prótese , Sistema de Registros , Reoperação/estatística & dados numéricos , Estudos Retrospectivos
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