Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 27
Filtrar
1.
PLoS Pathog ; 17(2): e1009304, 2021 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-33544760

RESUMEN

S. epidermidis is a substantial component of the human skin microbiota, but also one of the major causes of nosocomial infection in the context of implanted medical devices. We here aimed to advance the understanding of S. epidermidis genotypes and phenotypes conducive to infection establishment. Furthermore, we investigate the adaptation of individual clonal lines to the infection lifestyle based on the detailed analysis of individual S. epidermidis populations of 23 patients suffering from prosthetic joint infection. Analysis of invasive and colonizing S. epidermidis provided evidence that invasive S. epidermidis are characterized by infection-supporting phenotypes (e.g. increased biofilm formation, growth in nutrient poor media and antibiotic resistance), as well as specific genetic traits. The discriminating gene loci were almost exclusively assigned to the mobilome. Here, in addition to IS256 and SCCmec, chromosomally integrated phages was identified for the first time. These phenotypic and genotypic features were more likely present in isolates belonging to sequence type (ST) 2. By comparing seven patient-matched nasal and invasive S. epidermidis isolates belonging to identical genetic lineages, infection-associated phenotypic and genotypic changes were documented. Besides increased biofilm production, the invasive isolates were characterized by better growth in nutrient-poor media and reduced hemolysis. By examining several colonies grown in parallel from each infection, evidence for genetic within-host population heterogeneity was obtained. Importantly, subpopulations carrying IS insertions in agrC, mutations in the acetate kinase (AckA) and deletions in the SCCmec element emerged in several infections. In summary, these results shed light on the multifactorial processes of infection adaptation and demonstrate how S. epidermidis is able to flexibly repurpose and edit factors important for colonization to facilitate survival in hostile infection environments.

2.
Jt Dis Relat Surg ; 32(1): 3-9, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33463411

RESUMEN

OBJECTIVES: This study aims to investigate the effectiveness of a screening questionnaire to identify high-risk patients for novel coronavirus-2019 (COVID-19) among those undergoing elective orthopedic surgery. PATIENTS AND METHODS: Between May 4th, 2020 and June 11th, 2020, a total of 1,021 consecutive patients (492 males, 529 females; mean age: 62.3±15.1 years; range, 13 to 91 years) who were scheduled for elective orthopedic surgery were included. A screening questionnaire was applied to all patients. The patients admitted to hospital were also tested for COVID-19 infection through reverse transcription-polymerase chain reaction of the nasopharyngeal swab. RESULTS: Of the patients, 1,003 (98.2%) underwent elective surgery as planned. The screening questionnaire classified 30 patients as high-risk for COVID-19. A total of 18 procedures (n=18, 1.8%) were postponed due to the high risk of possible transmission of COVID-19. None of 991 low-risk patients were tested positive for COVID-19. CONCLUSION: The use of guiding principles for resuming elective orthopedic surgery is safe without a higher risk for complications in selected cases.


Asunto(s)
Artroplastia/estadística & datos numéricos , Procedimientos Quirúrgicos Electivos/estadística & datos numéricos , Hospitalización , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Transmisión de Enfermedad Infecciosa/prevención & control , Femenino , Alemania/epidemiología , Hospitales de Alto Volumen , Humanos , Masculino , Persona de Mediana Edad , Pandemias , Estudios Retrospectivos , Medición de Riesgo , Encuestas y Cuestionarios , Adulto Joven
3.
Hip Int ; 30(1_suppl): 72-77, 2020 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-32907419

RESUMEN

INTRODUCTION: Identification of the pathogen in case of a periprosthetic joint infection (PJI) remains 1 of the greatest challenges in septic surgery. Rapid germ identification enables timely, specific, antimicrobial therapy. The first multiplex PCR (polymerase chain reaction) generation (Unyvero-i60) enables germ detection within 5 hours with a sensitivity of 78.8% and a specificity of 100%. The aim of this study is to investigate the performance of the new generation of cartridges (Unyvero-ITI) of multiplex PCR in the case of a PJI. METHODS: In a prospective study, intraoperatively aspirated synovial fluid from 97 patients with aseptic or septic hip or knee revision surgery (49 aseptic, 48 septic) was examined with the multiplex PCR system (Unyvero-ITI) and the results were compared with the MSIS criteria. In addition, the time until the microbiological result was obtained in the event of a germ detection was documented. RESULTS: The multiplex PCR showed a germ detection with a sensitivity of 85.1% and a specificity of 98.0%. In 7 cases a false negative result was found and in one patient a false positive result was found. The general accuracy of this test procedure was 91.8%. The detection of germs was carried out within 5 hours with the multiplex PCR compared to 4.9 days in conventional microbiological diagnostics. CONCLUSIONS: The new generation of multiplex-PCR was able to improve germ detection. The possibility of prompt detection of germs offers the option of faster, targeted antimicrobial therapy. This diagnostic tool offers significant advantages, particularly in the context of an acute periprosthetic infection.

4.
Z Orthop Unfall ; 2020 May 18.
Artículo en Inglés, Alemán | MEDLINE | ID: mdl-32422663

RESUMEN

Dwarfism leads to an early onset of osteoarthritis of the joints of the lower limb. Due to bone deformities, arthroplasty is challenging. The incidence of implant-associated complications is higher compared to the normal population and often ends up with multiple revision arthroplasties. We report the first case in the literature of a 48-year-old patient with dwarfism who required implantation of a custom-made total femoral replacement due to aseptic stem loosening and a concomitant valgus gonarthrosis.

5.
Artículo en Inglés | MEDLINE | ID: mdl-32274569

RESUMEN

PURPOSE: To analyze the first results of calcium-phosphate-coated porous tibia cones. METHODS: Patients treated with TrabecuLink®-CaP Cones were retrospectively recruited from January 2016 to December 2017. These custom-made cones were produced using titanium alloy Ti-6Al-4 V (Tilastan®) and using additive manufacturing with a special calcium-phosphate coating (HX®-coating). Clinical outcome was evaluated using Oxford Knee Score. For radiological evaluation of the implants, patients sent us outpatient taken radiographs. A minimum follow-up of one year was required. Lastly, we analyzed postoperative complications and revision rates. RESULTS: 52 patients with revision knee arthroplasty (RKA) were recruited for final analysis, of whom, we had 17 septic RKAs (33%) and 35 aseptic cases of RKA (67%). The bone defects were grouped into 17 AORI Type 2A (32.7%), 14 Type 2B (26.9%) and 21 Type 3 (40.4%). After a mean follow-up of 22 months (13.2-34.8; SD = ± 10), we had 4 surgical revisions (7.7%), 2 septic and 2 aseptic cases. The mean Oxford Knee Score was 28.6 points (8-47; SD = ± 10). 22 of 28 radiographs (78.6%) showed regular positioning of the cones and TKAs at a mean follow-up of 16.8 months (13.2-34.8; SD = ± 6). Three patients (10.7%) showed slight radiolucencies in the bone-cement interfaces and 3 patients (10.7%) had beginning heterotopic ossifications. CONCLUSIONS: This study shows the initial clinical results of calcium-phosphate-coated tibia cones showing a good functional outcome. Further research should focus on long-term clinical and radiological follow-up.

6.
J Arthroplasty ; 35(8): 2200-2203, 2020 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-32247671

RESUMEN

BACKGROUND: Recently, a revised definition of the minor criteria scoring system for diagnosing periprosthetic joint infection (PJI) was developed by the second International Consensus Meeting on musculoskeletal infection. The new system combines preoperative and intraoperative findings, reportedly achieving high sensitivity and specificity. We aimed to validate the modified scoring system at a high-volume center. METHODS: We retrospectively reviewed patients who underwent a revision total hip or knee arthroplasty at our institution from May 2015 to August 2018. Serum C-reactive protein, synovial white blood cell count and polymorphonuclear percentage, leukocyte esterase test, alpha-defensin, microbiological and histologic results, and documented existence of sinus tract and intraoperative purulence were available for all patients. Cases with at least 1 major criterion were considered as infected. Using the new minor criteria, a score of ≥6 reflects PJI, while a score <3 can be considered as noninfected. Sensitivity, specificity, mean accuracy (ACC), positive predictive value (PPV), and negative predictive value (NPV) were analyzed. RESULTS: A total of 345 cases were included. A cutoff score of ≥6 points had the following diagnostic performance: area under the curve (AUC) = 0.90; ACC = 0.88; sensitivity = 0.96; specificity = 0.84; PPV = 0.70; NPV = 0.98. Diagnostic performance was better for the hip (AUC = 0.92; ACC = 0.90; sensitivity = 0.96; specificity = 0.86; PPV = 0.81; NPV = 0.98) than the knee (AUC = 0.89; ACC = 0.85; sensitivity = 0.95; specificity = 0.83; PPV = 0.59; NPV = 0.98). CONCLUSION: The modified scoring system proposed by the 2018 International Consensus Meeting in diagnosing PJI showed high sensitivity and a good performance, especially as rule-out diagnostic criteria. The cutoff level seems to be different between the hip and knee. Further validation studies considering the acknowledged limitations are recommended.

7.
J Clin Orthop Trauma ; 11(1): 70-72, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32001988

RESUMEN

The treatment of severe acetabular defects in revision total hip arthroplasty (Paprosky type IIIa and IIIb) is demanding and choosing the appropriate surgical technique remains controversial. The introduction of trabecular metal augments has led to a variety of new treatment options. The authors present a case of a Paprosky Type IIIb acetabular defect due to eight subsequent revisions of the left hip. The patient was treated with an alternative treatment option using multiple tantalum wedges. Anatomical reconstruction was achieved and at 12 months follow-up, the patient was pain free and was able to walk without walking aids.

8.
Hip Int ; : 1120700019888877, 2019 Nov 25.
Artículo en Inglés | MEDLINE | ID: mdl-31766882

RESUMEN

INTRODUCTION: The management of periprosthetic joint infection (PJI) of the hip is a challenging procedure. One-stage exchange is carried out in specialist centres with comparable infection free survival rates. However, there is a paucity of long-term results of this approach in young patients. METHODS: All patients undergoing one-stage exchange due to PJI with a known causative organism ⩽45 years of age with a minimum of 10-year follow-up (mean 15 years; range 10-24 years) were enrolled in this retrospective study. Patients older than 45 years of age or patients with a two-stage procedure were excluded from the study. The primary outcome measure was failure rate with special focus on reinfection at latest follow-up. Failure was defined as revision surgery for infection. Furthermore, functional outcome using the Harris Hip Score was determined initially and at latest follow-up. 26 patients fulfilled the inclusion criteria and were available for final follow-up. RESULTS: The study cohort consists of 16 male and 10 female patients with a mean age of 36.8 years (range 20-45 years) and a mean BMI of 29.8 kg/m2 (range 20.7-40.6 kg/m2). Prior to the single-stage procedure, the patients underwent an average of 3.1 previous surgical interventions (range 1-9). The mean hospital stay after septic revision was 19.7 days (11-33 days). Most infections were caused by Staphylococcus epidermidis (n = 8, 30.8%), followed by Staph. aureus (n = 7, 26.9%) and Propionibacterium acnes (n = 6, 23.1%). At latest follow-up, the overall survival rate was 76.9 %, while infection control could be achieved in 96.2%. At final examination, the mean Harris Hip Score improved from 46.2 to 78.9 (range 18.0-99; SD, 22.6). CONCLUSIONS: Single-stage revision surgery for the management of PJI in patients ⩽45 years is a successful treatment option with high infection control, even after long-term follow-up.

9.
J Med Microbiol ; 68(6): 910-917, 2019 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-31017566

RESUMEN

Little is known about the relationship between the virulence of pathogens in periprosthetic joint infection (PJI) and C-reactive protein (CRP) levels. In this context, we assessed the performance of CRP for PJI. We collected the following data from 987 cases of total joint revision due to PJI and 386 cases of aseptic revision: age, gender, comorbidities, values for serum CRP, leukocytes, microbiology for preoperatively taken aspirations and at least 2 intraoperative biopsies, and presence or absence of a draining sinus. The mean CRP value in the PJI group was 50.2 mg l-1 (sd=62.2), while a lower CRP value of 11.6 mg l-1 (sd=25.3) was found in the control group. There were no significant differences for the CRP values between patients with and without draining sinus (P=0.4423). The difference in CRP between high-virulence and low-virulence micro-organisms was significant for both the hip and the knee (P<0.0001). For the hip, the area under the receiver operating characteristic curve (AUC) of CRP as a diagnostic marker for PJI was 0.830 and, for the knee, the AUC was 0.884. The optimal cutoff point for CRP as a diagnostic marker of PJI, calculated using Youden's index, was 8.90 mg l-1 for the hip and 9.99 mg l-1 for the knee. The study results add valuable new information regarding the organism profile that may help with the diagnostic workup and with the research and development of new strategies for diagnosing and treating PJI.


Asunto(s)
Proteína C-Reactiva/análisis , Infecciones Relacionadas con Prótesis/diagnóstico , Adulto , Anciano , Biomarcadores/sangre , Femenino , Articulación de la Cadera/microbiología , Humanos , Articulación de la Rodilla/microbiología , Masculino , Persona de Mediana Edad , Infecciones Relacionadas con Prótesis/microbiología , Curva ROC , Reoperación , Estudios Retrospectivos , Virulencia , Adulto Joven
11.
J Arthroplasty ; 34(6): 1221-1226, 2019 06.
Artículo en Inglés | MEDLINE | ID: mdl-30857953

RESUMEN

BACKGROUND: Although 2-stage revision is still considered the gold standard for surgical management of periprosthetic joint infection (PJI), 1-stage revision has been reported to be as effective. Long-term reports for 1-stage revision in hip PJIs are lacking. METHODS: We reviewed our 10-11 years of results of 85 patients who underwent 1-stage exchange of the hip with an antibiotic-loaded bone cemented prosthesis due to PJI to determine the following: (1) What is the infection-free survival? (2) What is the overall survival? and (3) What are the long-term clinical outcomes? All 1-stage revision total hip arthroplasties (THAs) for infection between January 2006 and December 2007, with a minimum 10-year follow-up (range 10-11), were included in this retrospective cohort. Patients from another country or patients who were unable to participate were excluded. Eighty-five patients with a hip PJI were available at the last follow-up. Thirty-seven patients died during the 10-year study. Harris Hip Scores were recorded before the surgery and at last follow-up. Failures are reported as infection-related or aseptic. RESULTS: The 10-year infection-free survival was 94% and the surgery-free survival was 75.9%. The Harris Hip Scores improved from 43 (range 3-91) to 75 (range 10-91) (P < .001). The main indication for re-revision after 1-stage exchange was instability (10/20 patients). CONCLUSION: One-stage exchange of the hip for PJI is a reliable treatment option with high rate of infection control and long-lasting favorable outcomes.


Asunto(s)
Artritis Infecciosa/cirugía , Artroplastia de Reemplazo de Cadera/estadística & datos numéricos , Infecciones Relacionadas con Prótesis/cirugía , Reoperación/estadística & datos numéricos , Adulto , Anciano , Anciano de 80 o más Años , Antibacterianos/uso terapéutico , Artritis Infecciosa/tratamiento farmacológico , Artritis Infecciosa/etiología , Artroplastia de Reemplazo de Cadera/efectos adversos , Femenino , Articulación de la Cadera/cirugía , Humanos , Masculino , Persona de Mediana Edad , Infecciones Relacionadas con Prótesis/tratamiento farmacológico , Infecciones Relacionadas con Prótesis/etiología , Reoperación/métodos , Estudios Retrospectivos
12.
J Arthroplasty ; 34(7): 1423-1429, 2019 07.
Artículo en Inglés | MEDLINE | ID: mdl-30904363

RESUMEN

BACKGROUND: Interprosthetic femoral fractures in patients with ipsilateral stemmed total hip arthroplasty (THA) and total knee arthroplasty (TKA) can be technically demanding to treat surgically. Nonunion and implant failure are among the main complications following fixation of interprosthetic femoral (IF) fractures. Total femoral arthroplasty (TFA) is associated with a high incidence of infection and instability. IF sleeves have been designed to avoid the disadvantages of these techniques and to provide a stable construct. The aim of this study was to present the results with this device from a single center. METHODS: We reviewed 26 patients who underwent revision arthroplasty procedures, using custom-made cemented IF sleeves between 1997 and December 2017 in our institution. Two-part sleeves were used in 18 patients and one-part sleeves in 8 patients. The most common indication was an IF fracture (18 patients). Patients were monitored for postoperative complications, implant failure, and re-revision. The minimum follow-up of the survivors with nonrevised sleeves was 12 months. RESULTS: Twenty-three patients were included for the final analysis. The mean survivorship of the IF sleeve was 4.6 years at latest follow-up (mean 48.5 months; range 12 to 156). The overall rate of complications was 47.8%. The rate of mechanical failure was 21.7%. Late infections occurred in 3 patients (13%). At the latest follow-up, the mean Harris Hip Score was 69.9 points (range 39 to 94), and the mean functional Knee Society Score was 42.5 points (range 0 to 90), with average knee flexion of 95° (range 90° to 100°). CONCLUSION: The IF sleeve is a valid technique for the management of selected patients with IF fractures, particularly when a stable fracture fixation is not possible. Hip instability is not a concern, and functional improvement is achievable. Careful planning is required preoperatively to avoid mechanical failure.


Asunto(s)
Fracturas del Fémur/cirugía , Fémur/cirugía , Reoperación/métodos , Anciano , Anciano de 80 o más Años , Artroplastia de Reemplazo de Cadera/métodos , Artroplastia de Reemplazo de Rodilla/métodos , Femenino , Estudios de Seguimiento , Humanos , Articulación de la Rodilla/cirugía , Masculino , Persona de Mediana Edad , Complicaciones Posoperatorias/cirugía , Diseño de Prótesis , Estudios Retrospectivos , Resultado del Tratamiento
16.
Int Orthop ; 43(9): 2025-2030, 2019 09.
Artículo en Inglés | MEDLINE | ID: mdl-30187096

RESUMEN

PURPOSE: The purpose of the current study was to compare the blood loss and the need for allogeneic transfusion after one- and two-stage exchange arthroplasty for periprosthetic joint infection (PJI) of THA. METHODS: We performed a retrospective review of all patients undergoing either one-stage or two-stage septic exchange arthroplasty at two high-volume infection referral centres. The study cohort consists of 90 patients undergoing the two-stage and 184 patients the one-stage exchange arthroplasty. The difference between pre- and post-operative haemoglobin (Hb) and total blood loss as well as the allogeneic transfusion rate were compared between both groups. RESULTS: Both procedures together of the two-stage septic exchange arthroplasty had higher intra-operative blood loss and allogeneic blood transfusion rate compared to the one-stage septic exchange arthroplasty group. However, among the patients of the two-stage group, there were more smokers and had worse physical status (ASA) and higher mortality risk (CCI) than patients in the one-stage group. CONCLUSIONS: Two-stage septic revision of total hip arthroplasty has higher rates of blood loss and transfusion rates than one-stage revision. Therefore, the authors believe that blood loss rate, including its complications, should be considered when decision for the type of staged septic exchange is made.


Asunto(s)
Artritis Infecciosa/cirugía , Artroplastia de Reemplazo de Cadera/efectos adversos , Pérdida de Sangre Quirúrgica , Transfusión Sanguínea , Infecciones Relacionadas con Prótesis/cirugía , Anciano , Anciano de 80 o más Años , Antibacterianos/administración & dosificación , Artritis Infecciosa/etiología , Artroplastia de Reemplazo de Cadera/métodos , Femenino , Prótesis de Cadera/microbiología , Humanos , Masculino , Persona de Mediana Edad , Infecciones Relacionadas con Prótesis/etiología , Reoperación , Estudios Retrospectivos
17.
Arch Orthop Trauma Surg ; 138(11): 1617-1622, 2018 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-30229341

RESUMEN

INTRODUCTION: Mechanical failure due to dislocation, fracture and acetabular wear is a major complication associated with the use of spacers in the management of periprosthetic joint infection (PJI). We have developed a novel custom-made spacer in the setting of two-stage septic revision hip arthroplasty and present the preliminary results of our technique. MATERIALS AND METHODS: Between May 2015 and November 2017, 30 patients underwent hip revision using the ENDO spacer technique in the setting of a two-stage septic exchange arthroplasty. The technique involves the dual mobility liner and the downsized stainless cemented straight stem in combination with antibiotic-loaded PMMA bone cement. The primary outcome measure was the overall spacer complication rate, particularly spacer dislocation. Furthermore, functional outcome using the Harris Hip Score (HHS) before spacer implantation and prior re-implantation was evaluated. RESULTS: The mean age of the patients was 69.8 years (range from 45 to 85; SD = 9.9 years). No microorganisms were preoperatively found in 23 (76.7%) cases. Successful re-implantation was performed in all patients after a mean spacer duration time of 53.6 days (range 14-288 days; SD = 48.2). Spacer-related complications occurred in only two patients (6.7%). The HHS significantly improved from 34.0 (range 3-62; SD = 15.1) to 48.1 (range 11-73; SD = 15.7) (p = 0.0008). CONCLUSIONS: The ENDO spacer surgical technique is a feasible option in the treatment of periprosthetic joint infection (PJI), with a low dislocation rate. Furthermore, it allows early mobilization with the possibility of full-weight bearing.


Asunto(s)
Artritis Infecciosa/cirugía , Artroplastia de Reemplazo de Cadera/métodos , Infecciones Relacionadas con Prótesis/cirugía , Reoperación/métodos , Anciano , Anciano de 80 o más Años , Antibacterianos/administración & dosificación , Artroplastia de Reemplazo de Cadera/efectos adversos , Cementos para Huesos/efectos adversos , Femenino , Prótesis de Cadera/efectos adversos , Humanos , Masculino , Persona de Mediana Edad , Rango del Movimiento Articular , Reoperación/efectos adversos , Estudios Retrospectivos , Resultado del Tratamiento
18.
J Arthroplasty ; 33(10): 3257-3262, 2018 10.
Artículo en Inglés | MEDLINE | ID: mdl-29887359

RESUMEN

BACKGROUND: Synovial analysis of joint aspirates is a key diagnostic tool; all major diagnostic algorithms include cell count (CC) and polymorphonuclear percentage (PMN%) as important criteria to make the diagnosis. In this context, we conducted this study to analyze the overall accuracy of CC and PMN%. METHODS: A single-center retrospective analysis was performed with clinical data of included patients, with a total of 524 preoperative joint aspirations (255 hips, 269 knees). From the aspirated synovial fluid, we tested the leukocyte esterase activity, leukocyte CC, and PMN%, and sent specimens for aerobic and anaerobic bacterial culture. Depending on the clinical results in accordance with the Musculoskeletal Infection Society criteria for prosthetic joint infection (PJI), 203 patients were then admitted for aseptic revision and 134 patients for septic exchange. RESULTS: In 337 cases (64.3% of the study patients), it was possible to measure the CC. The best cutoff level for PJI of all study patients was 2582 leukocytes/µL (sensitivity [SE] 80.6%, specificity [SP] 85.2%) and a PMN% of 66.1% (SE 80.6%, SP 83.3%). The chosen cutoff levels for PJI of total knee and total hip arthroplasty were 1630 leukocytes/µL (SE 83.6%, SP 82.2%) and a PMN% of 60.5% (SE 80.3%, SP 77.1%) and 3063 leukocytes/µL (SE 78.1%, SP 80.0%) and a PMN% of 66.1% (SE 82.2%, SP 82.4%), respectively. CONCLUSIONS: CC and PMN% are sensitive methods for diagnosing PJI of total hip and total knee arthroplasty. However, there are differences in cutoff levels between knees and hips. International guidelines and diagnostic criteria need revisions in terms of these parameters.


Asunto(s)
Artritis Infecciosa/diagnóstico , Artroplastia de Reemplazo de Cadera/efectos adversos , Artroplastia de Reemplazo de Rodilla/efectos adversos , Infecciones Relacionadas con Prótesis/diagnóstico , Líquido Sinovial/citología , Artritis Infecciosa/etiología , Femenino , Humanos , Articulación de la Rodilla/cirugía , Recuento de Leucocitos , Leucocitos , Masculino , Infecciones Relacionadas con Prótesis/etiología , Estudios Retrospectivos , Sensibilidad y Especificidad
19.
Technol Health Care ; 26(3): 507-514, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-29614710

RESUMEN

BACKGROUND: Incongruity in the evaluation of outcomes between patients and surgeons has led to an increasing utilization of patient-reported outcome measures (PROMs) as an evaluation method of outcome. OBJECTIVE: The aim of this study was to compare Oxford Knee Score (OKS), KOOS-PS and Kujala Score results in patients who received either PFA or TKA with and without patella resurfacing in the tretament of knee osteoarthritis. METHODS: A total of 50 patients (PFA = 19 patients; TKA with patelloplasty = 15 patients; TKA with patellar resurfacing = 16 patients) undergone surgery between 2011 and 2014 and were included for final analysis. RESULTS: No statistical significance was found for OKS, KOOS-PS and Kujala scores between the three groups. However, although patients with PFA experienced higher levels of pain. CONCLUSIONS: According to our results, it is essential to discuss the treatment options and quality of life expectations with the patient prior joint replacement surgery in order to reduce patient dissatisfaction. LEVEL OF EVIDENCE: Level III, retrospective comparative study.


Asunto(s)
Artroplastia de Reemplazo de Rodilla/métodos , Osteoartritis de la Rodilla/cirugía , Rótula/cirugía , Medición de Resultados Informados por el Paciente , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Persona de Mediana Edad , Dolor Postoperatorio/epidemiología , Rango del Movimiento Articular , Estudios Retrospectivos
20.
Int Orthop ; 42(4): 755-760, 2018 04.
Artículo en Inglés | MEDLINE | ID: mdl-29435622

RESUMEN

PURPOSE: The aim of the study was to quantify the bacterial contamination rate of electrocautery tips during primary total joint replacement (TJR), as well as during aseptic and septic revision TJR. METHODS: A total of 150 electrocautery tips were collected between April and July 2017. TJR surgeries were divided into three groups: (1) primary, (2) aseptic and (3) septic revisions. In each group, a total of 50 electrocautery tips were collected. A monopolar electrocautery with a reusable stainless-steel blade tip was used in all cases. The rate of bacterial contamination was determined for all groups. Correlation of exposure time and type of surgery was analyzed. RESULTS: The overall bacterial contamination rate was 14.7% (95% CI 9.4 to 21.4%). The highest contamination rate occurred in the septic revision group (30.0%; 95% CI 17.9 to 44.6%), followed by the primary cases group (10.0%; 95% CI 3.3 to 21.8%) and the aseptic revision group (4.0%; 95% CI 0.5 to 13.7%). Exposure time did not affect the bacterial contamination rate. In 12 out of 15 (80%) contaminations identified in the septic group, we found the same causative microorganism of the prosthetic joint infection on the electrocautery tip. CONCLUSIONS: The bacterial contamination of the electrocautery tips is relatively high, especially during septic hip revision arthroplasty. Electrocautery tips should be changed after debridement of infected tissue.


Asunto(s)
Artroplastia de Reemplazo de Cadera/efectos adversos , Artroplastia de Reemplazo de Rodilla/efectos adversos , Electrocoagulación/efectos adversos , Contaminación de Equipos/estadística & datos numéricos , Reoperación/efectos adversos , Adulto , Anciano , Anciano de 80 o más Años , Artroplastia de Reemplazo de Cadera/instrumentación , Artroplastia de Reemplazo de Rodilla/instrumentación , Electrocoagulación/instrumentación , Femenino , Articulación de la Cadera/microbiología , Articulación de la Cadera/cirugía , Humanos , Articulación de la Rodilla/microbiología , Articulación de la Rodilla/cirugía , Masculino , Técnicas Microbiológicas , Persona de Mediana Edad , Estudios Prospectivos , Infecciones Relacionadas con Prótesis/microbiología
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA
...