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1.
Tech Vasc Interv Radiol ; 23(4): 100706, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-33308582

RESUMO

Knee osteoarthritis, a chronic degenerative condition, can be a debilitating and limiting process with affected patients presenting with symptoms such as pain, restrictive range of motion, and swelling. This condition commonly afflicts millions of people with a higher incidence among the elderly that results from chronic mechanical repetitive loading. The treatment of pain generating conditions such as arthritis in large joints is complex requiring interventions of varying focuses such as weight loss, anti-inflammatory medications, corticosteroid, hyaluronic and viscosupplementation injections, and prescription opioids. A gap in the treatment options of this ailment currently exists between short term pain solutions and surgical approaches such as total knee arthroplasty that may offer longer pain relief. Cooled radiofrequency ablation is an emerging technique that offers a minimally invasive alternative for treating knee pain with a clinical relevance in patients who are not surgical candidates due to coexistent medical comorbidities or those who are undesiring of surgery. This procedure uses radiofrequency ablation that blocks genicular nerves from transmitting knee pain signals to the brain. Further research will allow the application of this technique to treat other sensory nerves in large joints such as the hip and shoulder.


Assuntos
Artralgia/cirurgia , Denervação , Articulação do Joelho/cirurgia , Osteoartrite do Joelho/cirurgia , Manejo da Dor , Ablação por Radiofrequência , Radiografia Intervencionista , Artralgia/diagnóstico por imagem , Artralgia/fisiopatologia , Denervação/efeitos adversos , Humanos , Articulação do Joelho/diagnóstico por imagem , Articulação do Joelho/fisiopatologia , Osteoartrite do Joelho/diagnóstico por imagem , Osteoartrite do Joelho/fisiopatologia , Manejo da Dor/efeitos adversos , Complicações Pós-Operatórias/etiologia , Ablação por Radiofrequência/efeitos adversos , Radiografia Intervencionista/efeitos adversos , Fatores de Risco , Resultado do Tratamento
3.
Medicine (Baltimore) ; 99(49): e23454, 2020 Dec 04.
Artigo em Inglês | MEDLINE | ID: mdl-33285742

RESUMO

BACKGROUND: Many clinical studies have been published in the literature to compare the outcomes of unicompartmental knee replacement (UKR) and high tibial osteotomy (HTO), but reached different conclusions. Therefore, the relative merits and demerits of these 2 procedures remain under debate. The purpose of the present protocol was to design a retrospective comparative study to further investigate the clinical effectiveness of HTO compared to UKR in the medial unicompartmental osteoarthritis of knee patients. METHODS: This is an observational retrospective research, which prospectively collected the data from several surgeons in our center and utilized the above 2 methods to treat the unicompartmental osteoarthritis of knee. In our single hospital, we reviewed unicompartmental knee osteoarthritis patients treated using UKR or HTO from June 2016 to February 2018. For the HTO, its criteria included:For the UKR, its inclusion criteria containedIn our cohorts, the clinical investigations of the knee were composed of the objective parameters, which were recorded and then documented through utilizing the Function Score and Orthopedic American Knee Society Knee Score. The extra clinical findings evaluated involved operative time, postoperative requirements of blood transfusion, possible postoperative complications, as well as the range of motion. CONCLUSION AND DISCUSSION: The results of this study will provide clinical evidence on appropriate surgical treatment for patients with medial unicompartmental knee osteoarthritis. TRIAL REGISTRATION: This study protocol was registered in Research Registry (researchregistry6152).


Assuntos
Artroplastia do Joelho/métodos , Osteoartrite do Joelho/patologia , Osteoartrite do Joelho/cirurgia , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Amplitude de Movimento Articular , Projetos de Pesquisa , Estudos Retrospectivos
4.
Ther Umsch ; 77(10): 475-479, 2020.
Artigo em Alemão | MEDLINE | ID: mdl-33272050

RESUMO

Unicompartmental knee arthroplasty - a solution? Abstract. Unicompartmental knee arthroplasty (UKA) has various advantages over total knee arthroplasty (TKA); however, national joint registries communicate a significantly higher revision rate. Nevertheless, good results with high patient satisfaction can be achieved by appropriate patient selection. The good functional outcome may be due to the philosophy of the procedure, since the unicompartmental joint replacement is a pure resurfacing replacement, which aims to restore the individual, variable native, pre-arthrotic alignment, joint line and knee laxity, thus respecting the kinematics of the native knee joint. In addition, important proprioceptive structures such as ligaments are preserved. The advantages of unicompartmental joint replacement (minimally invasive procedure, preserving ligaments, cartilage and bone stock, more physiological kinematics, faster rehabilitation and easier revision surgery) outweigh the disadvantages of this procedure (technically more demanding, higher revision rate in national registers).


Assuntos
Artroplastia do Joelho , Osteoartrite do Joelho , Humanos , Articulação do Joelho/cirurgia , Osteoartrite do Joelho/cirurgia , Reoperação , Soluções , Resultado do Tratamento
5.
Ther Umsch ; 77(10): 481-489, 2020.
Artigo em Alemão | MEDLINE | ID: mdl-33272054

RESUMO

An update about latest developments in total knee arthroplasty Abstract. For the treatment of end-stage knee osteoarthritis the replacement of the knee joint with a total knee prosthesis has proven to be an effective and efficient therapy. Knee arthroplasty has developed considerably in recent years and will continue to develop further. It is decisive to always scientifically test these developments and innovations with regard to their improvement of the results for our patients. Not every innovation necessarily leads to an improvement. The most important innovations in recent years have mainly been computer-assisted surgical techniques such as navigation or robotics as well as increasing personalization - patient-specific cutting blocks or prostheses and individualized alignment concepts are worth mentioning. This overview provides a summary of the current developments in total knee arthroplasty and illustrates the prevailing concepts.


Assuntos
Artroplastia do Joelho , Prótese do Joelho , Osteoartrite do Joelho , Cirurgia Assistida por Computador , Humanos , Articulação do Joelho/cirurgia , Osteoartrite do Joelho/cirurgia
6.
Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi ; 34(12): 1568-1573, 2020 Dec 15.
Artigo em Chinês | MEDLINE | ID: mdl-33319537

RESUMO

Objective: To explore whether unicompartmental knee arthroplasty (UKA) and total knee arthroplasty (TKA) or bilateral TKAs should be performed in patients with bilateral knee osteoarthritis. Methods: Between April 2015 and February 2017, 24 patients with bilateral knee osteoarthritis who met the selection criteria were included in the study and randomly divided into 2 groups ( n=12). The patients in observation group were treated with TKA of the multicompartmental osteoarthritis knee in the first-stage operation and UKA of the unicompartmental osteoarthritis knee in the second-stage operation; and the patients in control group were treated with bilateral TKAs in staging operation. The operation time, the amount of postoperative drainage, and the time of active flexion of the knee joint at 90° were recorded. The difference of hemoglobin (Hb) before and after the second-stage operation was recorded, and the decrease of Hb was observed. The hospital stay after the second-stage operation was observed. The Hospital for Special Surgery (HSS) score, visual analogue scale (VAS) score, and range of motion (ROM) were recorded at 7 days after the first-stage operation, and at 15 days, 45 days, and 6 months after the second-stage operation. At 1 year after the second-stage operation, the mean values of the above indexes of both knees were taken as the individual comprehensive evaluation. The X-ray films were taken regularly to examine the prosthesis and lower extremity force line. Results: The incisions in both groups were healed by first intention after two stage operations. The differences in the operation time, the amount of postoperative drainage, and the time of active flexion of the knee joint at 90° between the two groups were not significant in the first-stage operation ( P>0.05) and were significant in the second-stage operation ( P<0.05). The decrease of Hb and hospital stay after the second-stage operation were significantly lower in observation group than in control group ( P<0.05). Both groups were followed up, the follow-up time was 12-18 months (mean, 14 months) in observation group and 12-21 months (mean, 16 months) in control group. During the follow-up period, X-ray films showed that the prosthesis positions of both sides were normal as well as the alignment line, and no infection, loosening or dislocation of prosthesis occurred. There was no significant difference in HSS score, VAS score, and ROM of multicompartmental osteoarthritis knee at 7 days after the first-stage operation between the two groups ( P>0.05), indicating that the two groups were still comparable. The HSS score, VAS score, and ROM of unicompartmental osteoarthritis knee in observation group were superior to control group ( P<0.05) after the second-stage operation. At 1 year, the HSS score, VAS score, and ROM in observation group were also superior to control group ( P<0.05). Conclusion: On the premise of strict indications, the patients with bilateral knee osteoarthritis should be treated according to their own pathological changes in order to obtain better short-term effectiveness.


Assuntos
Artroplastia do Joelho , Prótese do Joelho , Osteoartrite do Joelho , Humanos , Articulação do Joelho/cirurgia , Osteoartrite do Joelho/cirurgia , Amplitude de Movimento Articular , Estudos Retrospectivos , Resultado do Tratamento
7.
Surg Technol Int ; 37: 265-274, 2020 11 28.
Artigo em Inglês | MEDLINE | ID: mdl-33238026

RESUMO

INTRODUCTION: Total knee arthroplasty (TKA) in patients with established knee osteoarthritis and major varus, mostly due to constitutional proximal deformity, remains a challenging procedure. Orthogonal cuts result in asymmetric bone resection and subsequent bone-related laxity or difficult release. A procedure that combines opening high tibial osteotomy (HTO) and TKA in the same sitting to address such major deformities is possible. But for this combined operation, precise planning and an exact intraoperative transformation of the planning is required. The assumption that the results could be predicted better by means of a navigation system was analyzed. MATERIALS AND METHODS: The precision of surgery with computer-based navigation was compared to conventional surgery. A comparative prospective study was conducted using an expert surgeon. Between 2005 and 2015, we performed 20 procedures on knees with average preoperative 18° (range, 15-25°) varus. Tibial valgus osteotomy plus TKA was performed in one sitting. It allows the surgeon to do a more sparing medial release and to achieve proper realignment with a concomitant well-balanced prothesis. A group of 10 patients had conventional surgery and the other 10 had surgery performed with computer-based navigation for both osteotomy and TKA. By means of this system, the desired mechanical axis is obtained with real-time monitoring of the coronal and sagittal plane on the navigation without intraoperative x-ray control. The positioning of the saw-jigs for the femoral and tibial cuts of the arthroplasty was also performed with the help of the navigation system. RESULTS: Postoperative mean femorotibial varus was 1.5° (range, 0-5°) with better alignment for the computer-based navigation. The mean correction following osteotomy was 16° (range, 12-24°). The intraarticular part of the deformity due to cartilage wear was addressed by the TKA. No release was done during surgery. The patients were mobilized early with limitation in range of motion up to 90° of flexion during the two weeks and were allowed full weight after. No instability and no complications were observed. On assessing radiological coronal alignment of the prostheses, there was better alignment of 0.5° varus (range, 0-3° of varus) in the computer navigation group compared to the traditional group (2.5° varus; range, 1-5° of varus). The navigation group showed better tibial slope maintenance (mean change, + 0.5°, p=0.732), whereas it was increased significantly in the conventional group (mean change, +4.2°, p<0.01). The average number of fluoroscopy shots for the computer navigation group was 2.8 (95% CI, 1.2-6.5) versus 9.4 in the control group (95% CI, 5.3-12.4). This represented a shorter (p<0.001) time of 11.4 seconds of irradiation for the computerized navigation technique compared to 36.2 seconds of irradiation for the traditional technique. CONCLUSIONS: Computer navigation improved precision with less radiation. The findings of this study suggest that computer navigation may be safely used in a complex procedure when combined with total knee arthroplasty and opening wedge high tibial osteotomy in one sitting.


Assuntos
Artroplastia do Joelho , Osteoartrite do Joelho , Cirurgia Assistida por Computador , Computadores , Humanos , Articulação do Joelho/diagnóstico por imagem , Articulação do Joelho/cirurgia , Osteoartrite do Joelho/diagnóstico por imagem , Osteoartrite do Joelho/cirurgia , Osteotomia , Estudos Prospectivos , Tíbia/diagnóstico por imagem , Tíbia/cirurgia
9.
Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi ; 34(11): 1369-1375, 2020 Nov 15.
Artigo em Chinês | MEDLINE | ID: mdl-33191692

RESUMO

Objective: To explore the gait trajectory characteristics and effectiveness after unicompartmental knee arthroplasty (UKA). Methods: Thirty patients (30 knees) with anterior medial compartment osteoarthritis who were treated with UKA between January 2017 and December 2018 were selected as subjects (UKA group). According to age, gender, and side, 30 patients (30 knees) with knee osteoarthritis treated with total knee arthroplasty (TKA) were selected as control (TKA group). In addition to the range of motion (ROM) before operation showing significant difference between the two groups ( t=4.25, P=0.00), there was no significant difference in gender, age, disease duration, sides, body mass index, and preoperative hip-knee-ankle angle (HKA), Western Ontario and McMaster University Osteoarthritis Index (WOMAC) score between the two groups ( P>0.05). The incision length, drainage volume within 24 hours after operation, and the changes of hemoglobin and albumin were recorded. The WOMAC score, ROM, and HKA before and after operation were compared between the two groups. At 1 year after operation, the gait trajectory characteristics of two groups were analyzed by Vicon three-dimensional gait capture system, and the absolute symmetry index (ASI) of the lower limbs of the two groups was calculated. Results: The incisions of the two groups healed by first intention, with no complications. The incision length, drainage volume within 24 hours, and the changes of hemoglobin and albumin after operation in the UKA group were significantly smaller than those in the control group ( P<0.05). All patients were followed up completely, the follow-up time ranged from 13 to 20 months of UKA group (mean, 18 months) and 16 to 24 months of control group (mean, 20 months). The imaging review showed that the lower limb alignment of the two groups were restored to a neutral position, and the position of prosthesis was good. At 1 year after operation, the WOMAC score, HKA, and ROM of two groups were significantly improved when compared with those before operation ( P<0.05); the postoperative WOMAC score and ROM of the UKA group were significantly better than those of the control group ( P<0.05), and there was no significant difference in HKA between the two groups ( t=1.54, P=0.13). Gait analysis at 1 year after operation showed that the walking speed, stride length, knee extension at mid-stance, and flexion at swing in the UKA group were significantly better than those in the TKA group ( P<0.05); there was no significant difference in cadence, knee flexion at initial contact, and knee flexion at loading response between the two groups ( P>0.05). The ASI of bilateral knee flexion in the UKA group was significantly greater than that in the TKA group during the initial contact and loading response period ( P<0.05). Conclusion: Compared with TKA, UKA has the advantages of small incision, less blood loss, and quicker functional recovery. The early gait after UKA is mainly manifested as the increase in walking speed, stride length, knee flexion at swing, and extension at mid-stance phase. From the analysis of gait symmetry, during the initial contact and loading response phase, the operation side after UKA undertakes more shock absorption and joint stabilization functions than the contralateral side.


Assuntos
Artroplastia do Joelho , Prótese do Joelho , Osteoartrite do Joelho , Marcha , Humanos , Articulação do Joelho/cirurgia , Osteoartrite do Joelho/cirurgia , Amplitude de Movimento Articular , Resultado do Tratamento
10.
Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi ; 34(11): 1376-1381, 2020 Nov 15.
Artigo em Chinês | MEDLINE | ID: mdl-33191693

RESUMO

Objective: To evaluate the performance, safety, and precision of the Yuanhua robotic-assisted total knee arthroplasty system (YUANHUA-TKA) through animal experiments, which will provide reference data for human clinical trials. Methods: Six 18-month-old goats, weighing 30-35 kg, were used in this study. The experimental study was divided into two parts: the preoperative planning and intraoperative bone resection. CT scans of the goats' lower extremities were firstly performed before the experiments. Then the CT scans were segmented to generate the femoral and tibial three-dimensional (3D) models in the YUANHUA-TKA system. The volumes and angles of each resection plane on the femur and tibia were planned. The bone resection was finally implemented under the assistance of the YUANHUA-TKA system. After completing all bone resections, the lower extremities of each goat were taken to have CT scans. By comparing the femoral and tibial 3D models before and after the experiments, the actual bone resection volumes and angles were calculated and compared with the preoperative values. Results: During the experiments, no abnormal bleeding was found; the YUANHUA-TKA system ran smoothly and stably and was able to stop moving and keep the osteotomy in the safe zone all the time. After the experiment, the resection planes were observed immediately and found to be quite flat. There was no significant difference between the planned and actual osteotomy thickness and osteotomy angle ( P>0.05); the error of the osteotomy thickness was less than 1 mm, and the error of the osteotomy angle was less than 2°. Conclusion: The YUANHUA-TKA system can assist the surgeons to perform osteotomy following the planned thickness and angle values. It is expected to assist surgeons to implement more accurate and efficient osteotomy in the future clinical applications.


Assuntos
Experimentação Animal , Artroplastia do Joelho , Osteoartrite do Joelho , Robótica , Cirurgia Assistida por Computador , Animais , Fêmur/diagnóstico por imagem , Fêmur/cirurgia , Humanos , Articulação do Joelho/diagnóstico por imagem , Articulação do Joelho/cirurgia , Osteoartrite do Joelho/cirurgia , Tíbia/diagnóstico por imagem , Tíbia/cirurgia
11.
Bone Joint J ; 102-B(11): 1519-1526, 2020 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-33135448

RESUMO

AIMS: The primary aim of this study was to assess whether the postoperative Oxford Knee Score (OKS) demonstrated a ceiling effect at one and/or two years after total knee arthroplasty (TKA). The secondary aim was to identify preoperative independent predictors for patients that achieved a ceiling score after TKA. METHODS: A retrospective cohort of 5,857 patients undergoing a primary TKA were identified from an established arthroplasty database. Patient demographics, body mass index (BMI), OKS, and EuroQoL five-dimension (EQ-5D) general health scores were collected preoperatively and at one and two years postoperatively. Logistic regression analysis was used to identify independent preoperative predictors of patients achieving postoperative ceiling scores. Receiver operating characteristic curve was used to identify a preoperative OKS that predicted a postoperative ceiling score. RESULTS: The ceiling effect was 4.6% (n = 272) at one year which increased significantly (odds ratio (OR) 40.3, 95% confidence interval (CI) 30.4 to 53.3; p < 0.001) to 6.2% (n = 363) at two years, when defined as those with a maximal score of 48 points. However, when the ceiling effect was defined as an OKS of 44 points or more, this increased to 26.3% (n = 1,540) at one year and further to 29.8% (n = 1,748) at two years (OR 21.6, 95% CI 18.7 to 25.1; p < 0.001). A preoperative OKS of 23 or more and 22 or more were predictive of achieving a postoperative ceiling OKS at one and two years when defined as a maximal score or a score of 44 or more, respectively. CONCLUSION: The postoperative OKS demonstrated a small ceiling effect when defined by a maximal score, but when defined by a postoperative OKS of 44 or more the ceiling effect was moderate and failed to meet standards. The preoperative OKS was an independent predictor of achieving a ceiling score. Cite this article: Bone Joint J 2020;102-B(11):1519-1526.


Assuntos
Artroplastia do Joelho , Indicadores Básicos de Saúde , Osteoartrite do Joelho/cirurgia , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Medidas de Resultados Relatados pelo Paciente , Cuidados Pré-Operatórios , Prognóstico , Estudos Retrospectivos , Resultado do Tratamento
12.
Medicine (Baltimore) ; 99(47): e22986, 2020 Nov 20.
Artigo em Inglês | MEDLINE | ID: mdl-33217800

RESUMO

This retrospective study aimed to define the morphological characteristics of the distal femur in patients with hemophilia-related knee arthritis (HA) and develop precise femoral component installation during total knee arthroplasty (TKA) using a reference axis.Computed tomography (CT) was performed in 75 patients [HA group: 34 patients, 48 knees; osteoarthritis (OA group): 41 patients, 48 knees] during 2017-2019. CT scans were constructed into three-dimensional models. We measured the medial (MPC) and lateral (LPC) posterior condyle widths, lateral anteroposterior (LAP) height, medial anteroposterior (MAP) height, mediolateral epicondyle (ML) width, and depths of the anterior patellar groove (X2) and the intercondylar notch (X4). Also, angles were measured between the posterior condylar line (PCL) and surgical transepicondylar axis (STEA) (PCA angle), anteroposterior axis (APA angle) and STEA (APSA angle), anterior condylar line (ACL) and STEA (ACA angle), and clinical transepicondylar axis (CTEA) and PCL (CTA angle). ML/MAP, ML/LAP, X4/LAP, X2/LAP, and LPC/ML ratios were calculated.There were no significant differences in any angles between the HA and OA groups (P > .05). However, the HA group had a smaller MPC (P < .05) and larger X4 than the OA group (P < .05). ML, ML/LAP, X2, MAP, and LAP showed no significant differences between the 2 groups.ML, ML/LAP, and PCA showed no significant differences between the 2 groups. During TKA in hemophilia-related knee arthritis patients, the femoral component can be installed with PCL as the reference axis, although individual differences should be considered.


Assuntos
Artroplastia do Joelho , Fêmur/diagnóstico por imagem , Fêmur/cirurgia , Hemofilia A/complicações , Osteoartrite do Joelho/diagnóstico por imagem , Osteoartrite do Joelho/cirurgia , Tomografia Computadorizada por Raios X , Adulto , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos
13.
Medicine (Baltimore) ; 99(47): e23351, 2020 Nov 20.
Artigo em Inglês | MEDLINE | ID: mdl-33217878

RESUMO

The aim of this study was to analyze the relationship between medial posterior tibial slope (MPTS) and medial meniscus slope (MMS) with the location of meniscal lesions. We hypothesize that meniscuses with greater MPTS and MMS are more likely to have lesions in posterior horn.A total of 292 patients underwent arthroscopic surgery between January 2014 to September 2019 due to knee osteoarthritis (OA) and meniscal lesions were reviewed. Based upon the location of meniscal tears, patients were categorized as group B (tears in posterior horn) and group A (other sites). MPTS and MMS were measured from magnetic resonance imaging (MRI) slices. Osteoarthritis grade was evaluated in anteroposterior radiographs by the criteria defined by Kellgeren and Lawrence. Demographic data, OA grade, MPTS, and MMS for the 2 groups were compared and analyzed.The group A had 29 (39%) male and 45 (61%) female subjects with a mean age of 57.07 ±â€Š6.79 years. Group B consists of 74 (34%) male and 144 (66%) female subjects with a mean age of 58.90 ±â€Š7.594 years. (P = .067 and P = .458 for age and sex, respectively). In group A, 31 knees (42%) were determined to be Kellgren-Lawrence grade one, 32 knees (43%) grade two, and 11 knees (15%) grade three. In group B, 86 knees (39%) were categorized in grade one, 85 knees (39%) in grade two, and 47 knees (26%) in grade three (P = .085). The mean MPTS was 5.06 ±â€Š2.11 degree for group A and 6.15 ±â€Š2.37 degree for group B (P = .001). The mean MMS for group A was lower than group B (1.38 ±â€Š2.12 degree vs 3.14 ±â€Š2.92 degree; P < .000)This study demonstrated that increased MPTS and MMS may be considered as the risk factors for medial meniscal posterior horn tears.


Assuntos
Meniscos Tibiais/anatomia & histologia , Tíbia/anatomia & histologia , Lesões do Menisco Tibial/cirurgia , Artroscopia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Osteoartrite do Joelho/cirurgia , Estudos Retrospectivos
14.
Am J Sports Med ; 48(13): 3154-3162, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-33026837

RESUMO

BACKGROUND: A high prevalence of osteoarthritis (OA) progression in patients with lateral meniscal defects has been reported. However, optimal management techniques for active patients remain ill-defined. HYPOTHESIS: Meniscoplasty by capsular advancement with the application of the centralization technique would improve clinical and radiological outcomes in patients with lateral compartment OA attributed to lateral meniscal defects. STUDY DESIGN: Case series; Level of evidence, 4. METHODS: A total of 27 patients were enrolled who had undergone meniscoplasty by capsular advancement for lateral compartment OA attributed to lateral meniscal defects. In these patients, the meniscotibial capsule was released from the tibia and advanced with the remaining meniscus onto the rim of the tibial plateau to reform a meniscus-like configuration. Measures of clinical outcomes included clinical examination, Lysholm score, International Knee Documentation Committee (IKDC) subjective score, Knee injury and Osteoarthritis Outcome Score (KOOS), subjective rating scales regarding recovery of the operated knee, and sports performance level. Measures of radiographic outcomes included meniscal extrusion width or regeneration of the meniscus-like tissue on magnetic resonance imaging and lateral joint space width on standing extension anteroposterior and Rosenberg views. All clinical and radiographic outcomes were reported preoperatively and 2 years postoperatively, except magnetic resonance imaging findings, which were reported preoperatively and 1 year postoperatively. RESULTS: The clinical outcomes were significantly improved 2 years postoperatively as compared with baseline: Lysholm score, IKDC subjective score, and KOOS subscores (all P < .0001). The patients' subjective recovery (P < .0001) and sports performance level (P < .0001) were also improved. One year postoperatively, 10 of 11 patients who had no meniscus remaining at the middle segment showed more than one-third the volume of meniscal tissue-like regeneration, and meniscal extrusion width was significantly reduced as compared with baseline in the remaining 16 patients (P = .0006). Joint space width increased at 2 years on the standing anteroposterior view (P < .0001) and the Rosenberg view (P = .0001). CONCLUSION: Meniscoplasty of the lateral meniscus by capsular advancement improved clinical and radiographic outcomes at 2-year follow-up in patients with lateral compartment OA attributed to lateral meniscal defects.


Assuntos
Osteoartrite do Joelho , Lesões do Menisco Tibial , Artroscopia , Seguimentos , Humanos , Imagem por Ressonância Magnética , Meniscos Tibiais/diagnóstico por imagem , Meniscos Tibiais/cirurgia , Osteoartrite do Joelho/diagnóstico por imagem , Osteoartrite do Joelho/cirurgia
15.
Zhonghua Wai Ke Za Zhi ; 58(11): 876-881, 2020 Nov 01.
Artigo em Chinês | MEDLINE | ID: mdl-33120452

RESUMO

Objective: To explore the feasibility of fast and accurate osteotomy using a new angle adjustable osteotomy guide (AAOG) in closing wedge distal femoral osteotomy(CWDFO). Methods: The clinical data of 14 patients (17 knees) with valgus knee treated with CWDFO at Department of Integrated Chinese and Western Medicine Orthopedics, Honghui Hospital, Xi'an Jiaotong University from January 2018 to July 2019 were analyzed retrospectively. There were 3 males and 11 females, aging (41.4±16.4) years (range: 18 to 56 years). The body mass index was (23.5±3.5) kg/m(2) (range: 18.1 to 28.9 kg/m(2)). The guide pins were placed with the assistance of the self-designed AAOG. Before the surgery, Solidworks software was used to calculate the correction angle and the osteotomy radius accurately. The osteotomy guide was adjusted according to these two parameters. During the surgery, the adjusted osteotomy guide was placed to the surface of bone closely and the guide pins were drilled into the bone through the guide holes. The position of the guide pins was confirmed under fluoroscopy. The osteotomy was finished under guide of pins and fixed with Tomofix plate (Synthes). The times and duration of placement of the guide pins, the times of X-ray examination, the planned and actual thickness of the osteotomy wedge, the top and bottom area of the osteotomy wedge, the posterior distal femoral angle(PDFA), the correction of the weight line, and the American Knee Society Score(AKSS) and Tegner scores were collected and compared by paired t test or Kruskal-Wallis non-parametric test. Healing time after osteotomy and complications were recorded. Results: The guide pins were successfully placed once in 10 knees, adjusted once in 5 knees and twice in 2 knees. The time spent in placing all the 6 pins was 82.4 seconds (range: 51 to 125 seconds), and the times of X-ray examination was 1.5 times (range: 1 to 5 times). The top and bottom areas of the osteotomy wedge were (5.52±0.52)cm(2) and (5.36±0.49)cm(2). PDFA was (85.2±2.6)° preoperatively and (85.5±1.4)° postoperatively (t=-0.401, P>0.05). The thickness of the osteotomy was (11.3±1.9)mm according to the preoperative plan, and the actual thickness was (8.1±1.7)mm. All the patients were followed up for 6 months after surgery and AKSS and Tegner scores improved significantly (all P<0.05). The correction of the weight lines was within the ideal range. Fractures of the hinge point occurred in 3 knees. All of the osseous healing without complications. Conclusion: The new osteotomy guide helps to place the guide pins rapidly and precisely according to the preoperative planning, which should be widely used in clinical applications with promising outcomes.


Assuntos
Fêmur/cirurgia , Osteoartrite do Joelho , Osteotomia , Adolescente , Adulto , Feminino , Humanos , Articulação do Joelho/cirurgia , Masculino , Pessoa de Meia-Idade , Osteoartrite do Joelho/cirurgia , Osteotomia/instrumentação , Osteotomia/métodos , Estudos Retrospectivos , Resultado do Tratamento , Adulto Jovem
16.
BMJ ; 371: m3576, 2020 10 13.
Artigo em Inglês | MEDLINE | ID: mdl-33051212

RESUMO

OBJECTIVE: To evaluate whether a progressive course of outpatient physiotherapy offers superior outcomes to a single physiotherapy review and home exercise based intervention when targeted at patients with a predicted poor outcome after total knee arthroplasty. DESIGN: Parallel group randomised controlled trial. SETTING: 13 secondary and tertiary care centres in the UK providing postoperative physiotherapy. PARTICIPANTS: 334 participants with knee osteoarthritis who were defined as at risk of a poor outcome after total knee arthroplasty, based on the Oxford knee score, at six weeks postoperatively. 163 were allocated to therapist led outpatient rehabilitation and 171 to a home exercise based protocol. INTERVENTIONS: All participants were reviewed by a physiotherapist and commenced 18 sessions of rehabilitation over six weeks, either as therapist led outpatient rehabilitation (progressive goal oriented functional rehabilitation protocol, modified weekly in one-one contact sessions) or as physiotherapy review followed by a home exercise based regimen (without progressive input from a physiotherapist). MAIN OUTCOME MEASURES: Primary outcome was Oxford knee score at 52 weeks, with a 4 point difference between groups considered to be clinically meaningful. Secondary outcomes included additional patient reported outcome measures of pain and function at 14, 26, and 52 weeks post-surgery. RESULTS: 334 patients were randomised. Eight were lost to follow-up. Intervention compliance was more than 85%. The between group difference in Oxford knee score at 52 weeks was 1.91 (95% confidence interval -0.18 to 3.99) points, favouring the outpatient rehabilitation arm (P=0.07). When all time point data were analysed, the between group difference in Oxford knee score was a non-clinically meaningful 2.25 points (0.61 to 3.90, P=0.01). No between group differences were found for secondary outcomes of average pain (0.25 points, -0.78 to 0.28, P=0.36) or worst pain (0.22 points, -0.71 to 0.41, P=0.50) at 52 weeks or earlier time points, or of satisfaction with outcome (odds ratio 1.07, 95% confidence interval 0.71 to 1.62, P=0.75) or post-intervention function (4.64 seconds, 95% confidence interval -14.25 to 4.96, P=0.34). CONCLUSIONS: Outpatient therapist led rehabilitation was not superior to a single physiotherapist review and home exercise based regimen in patients at risk of poor outcomes after total knee arthroplasty. No clinically relevant differences were observed across primary or secondary outcome measures. TRIALS REGISTRATION: Current Controlled Trials ISRCTN23357609 and ClinicalTrials.gov NCT01849445.


Assuntos
Artroplastia do Joelho/reabilitação , Terapia por Exercício/métodos , Osteoartrite do Joelho/reabilitação , Dor Pós-Operatória/reabilitação , Modalidades de Fisioterapia , Idoso , Artroplastia do Joelho/efeitos adversos , Protocolos Clínicos , Feminino , Humanos , Articulação do Joelho/patologia , Articulação do Joelho/cirurgia , Masculino , Pessoa de Meia-Idade , Osteoartrite do Joelho/cirurgia , Medição da Dor , Dor Pós-Operatória/etiologia , Cooperação do Paciente , Medidas de Resultados Relatados pelo Paciente , Resultado do Tratamento
17.
Medicine (Baltimore) ; 99(35): e21868, 2020 Aug 28.
Artigo em Inglês | MEDLINE | ID: mdl-32871911

RESUMO

BACKGROUND: The choice between unicondylar knee arthroplasty (UKA) and total knee arthroplasty (TKA) is likely to have long-term implications for patient-reported health outcomes. However, high-quality studies that compare the outcomes of TKA and UKA and their effects are still lacking in the literature. Thus, the aim of the present study was to compare the UKA and TKA techniques with regard to functional outcomes and perioperative complications in patients who had isolated medial osteoarthritis. METHODS: This was a retrospective, single-center, matched-controlled study performed with approval of our hospital (Kunshan hospital of Traditional Chinese Medicine affiliated to Nanjing University of Traditional Chinese Medicine), with the ethics number KZY2020-37. To reduce the effect of selection bias and potential confounding in this observational study, a 1:1 matching algorithm was applied. The groups were split by sex, age to within 6 years, and body mass index within 5 kg/m. Thus, we retrospectively reviewed the records of 240 consecutively enrolled patients who underwent UKA and 240 patients who underwent TKA from January 2013 to June 2015 from the database of our institution. Written informed consent was obtained from all subjects participating in the trial. Clinical outcomes included range of motion, Short Form 12 score, new Knee Society Score, Western Ontario and McMaster Universities Arthritis Index, and the complications. The outcome measures were evaluated by a physiotherapist and were assessed preoperatively and postoperatively at 6 months and 2 years. The mean follow-up time was 3 years. CONCLUSION: We hypothesized that there was no significant difference between the 2 groups in terms of postoperative outcomes. TRIAL REGISTRATION: Our study was registered in Research Registry (researchregistry5828).


Assuntos
Artroplastia do Joelho/métodos , Osteoartrite do Joelho/cirurgia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , China , Feminino , Humanos , Masculino , Análise por Pareamento , Pessoa de Meia-Idade , Estudos Observacionais como Assunto , Medidas de Resultados Relatados pelo Paciente , Amplitude de Movimento Articular , Projetos de Pesquisa , Estudos Retrospectivos , Adulto Jovem
18.
Surg Technol Int ; 37: 336-340, 2020 Nov 28.
Artigo em Inglês | MEDLINE | ID: mdl-32894516

RESUMO

BACKGROUND: Robotic-assisted total knee arthroplasty represents an increasingly utilized surgical technology; however, there remains clinical question whether the technique produces improved clinical and patient-reported outcomes. The purpose of this study was to evaluate early clinical outcomes and patient preference of robotic-assisted total knee arthroplasty (rTKA) versus manual TKA (mTKA) in a direct crossover cohort of patients who underwent consecutive TKAs by each technique. MATERIALS AND METHODS: A retrospective chart review and telephone interview was performed on 36 patients who underwent both rTKA and mTKA by a single surgeon between 2012-2018. Perioperative outcomes-complications/reoperations and patient-preferred technique-were collected with mean clinical follow up of 4.8 and 2.0 years for mTKA and rTKA, respectively. RESULTS: mTKA were performed significantly (p<0.01) more quickly than rTKA, including shorter tourniquet time (56 versus 73 minutes) and total operating room time (93 versus 116 minutes). rTKA patients length of stay (LOS) was significantly (p<0.01) decreased (1.8 days) compared to mTKA (2.3 days). For rTKA and mTKA, respectively, there was no difference in final range of motion (119 versus 122 degrees), Visual Analog Scale (1.6 versus 0.9), or Knee Osteoarthritis Outcome Score, Jr (85 versus 87). Twenty (56%) reported rTKA as the preferred technique over mTKA. CONCLUSION: In same patient direct comparison, rTKA required longer operative time but improved LOS compared to mTKA. There was no difference in final outcomes with only slightly more patients preferring rTKA.


Assuntos
Artroplastia do Joelho , Osteoartrite do Joelho , Procedimentos Cirúrgicos Robóticos , Humanos , Osteoartrite do Joelho/cirurgia , Amplitude de Movimento Articular , Estudos Retrospectivos
19.
Orthop Clin North Am ; 51(4): 453-459, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-32950214

RESUMO

Psychosocial health may influence the outcomes after total knee arthroplasty (TKA). We investigated the hypothesis that multimodal therapy influences the quality of life and function in patients diagnosed with osteoarthritis of the knee joint. Secondly, in patients who then proceed to have TKA post-multimodal therapy, does the response to the multimodal therapy influence the overall functional outcome of surgery? Patients diagnosed with osteoarthritis of the knee were enrolled in the study and prospectively followed-up. A total of 526 patients were enrolled and available for the study. All participants were enrolled for 12 classes of 60-minute duration over 6-weeks. Apart from an exercise program, the class also included physiotherapist-led education and a 'weight management' lecture by a dietitian. In summary, the multimodal therapy program improved the SF-12, OKS, pain scores (visual analogue scale) and WOMAC scores significantly. The multimodal therapy protocol can optimize patients' psychological scores prior to TKA and may enhance ultimate functional outcome.


Assuntos
Artroplastia do Joelho/reabilitação , Osteoartrite do Joelho/reabilitação , Artroplastia do Joelho/psicologia , Terapia Combinada , Humanos , Osteoartrite do Joelho/cirurgia , Recuperação de Função Fisiológica
20.
Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi ; 34(9): 1096-1100, 2020 Sep 15.
Artigo em Chinês | MEDLINE | ID: mdl-32929900

RESUMO

Objective: To explore the safety and effectiveness of quadriceps snip in complex total knee arthroplasty (TKA). Methods: A clinical data of 19 cases (29 knees) with complex TKA assisted with quadriceps snip between January 2016 and May 2017 were retrospectively analyzed. There were 9 males (13 knees) and 10 females (16 knees). The age of patients ranged from 34 to 66 years (mean, 50.2 years). Four patients (8 knees) were ankylosing spondylitis, 5 patients (7 knees) were rheumatoid arthritis, and 10 patients (14 knees) were knee osteoarthritis. The average disease duration was 10.9 years (range, 8-15 years). There were 12 knees of Kellgren-Lawrence grade Ⅲ and 17 knees of Kellgren-Lawrence grade Ⅳ. The range of motion (ROM) of knee was (19.86±7.23)°. The clinical and function scores of knee society score (KSS) were 47.86±11.26 and 15.52±11.21, respectively. Postoperative complications, ROM, KSS scores, extensor lag, and prosthesis loosening were observed to evaluate the effectiveness. Results: All incisions healed by first intention, and no infection or cardiovascular and cerebrovascular accidents occurred. All patients were followed up 25-39 months (mean, 30.3 months). At last follow-up, the ROM of knee was (91.03±7.30) °, the KSS clinical score was 83.62±9.99 and functional score was 66.38±7.89, showing significant differences when compared with preoperative ones ( P<0.05). Postoperative extensor lag (10°, 10°, 15°) occurred in 3 cases. There was no evidence of prosthesis loosening or osteolysis on X-ray films during follow-up. Conclusion: The application of quadriceps snip in complex TKA can effectively improve the operative field exposure and reduce incidence of complications such as patella tendon tearing, patella fracture, and quadriceps tendon injury. The surgical technique of Krackow tendon suture can effectively guarantee early rehabilitation without occurrence of other complications.


Assuntos
Artroplastia do Joelho , Prótese do Joelho , Osteoartrite do Joelho/cirurgia , Feminino , Humanos , Articulação do Joelho/cirurgia , Masculino , Amplitude de Movimento Articular , Estudos Retrospectivos , Resultado do Tratamento
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