La artroplastia total de rodilla en pacientes con enfermedad de Parkinson es efectiva. Evaluación funcional y análisis de complicaciones / Total knee arthroplasty is effective in patients with Parkinson's disease. Functional assessment and analysis of complications

Introducción: Gracias a las mejoras en el tratamiento médico de la enfermedad de Parkinson (EP), la esperanza de vida de estos pacientes ha aumentado. Los resultados generales después de la artroplastia total de rodilla (ATR) son controvertidos. Nuestro objetivo es analizar una serie de pacientes con EP, evaluando su estado clínico, resultados funcionales, complicaciones y tasas de supervivencia después de la ATR. Métodos: Se estudiaron retrospectivamente 31 pacientes con EP operados entre 2014-2020. La edad media fue de 71 años (DE±5,8). Había 16 pacientes mujeres. El seguimiento medio fue de 68,2 meses (DE±36). Se utilizó el Knee Scoring System (KSS) y la escala visual analógica (EVA) para la evaluación funcional. Se utilizó la escala modificada de Hoehn y Yahr para evaluar la gravedad de la EP. Se registraron todas las complicaciones y se realizaron curvas de supervivencia. Resultados: La evaluación media postoperatoria del KSS tuvo un aumento de 40 puntos (35 [DE±15] vs. 75 [DE±15] [p<0,001]). La media de EVA postoperatoria disminuyó 5 puntos (8 [DE±2] vs. 3 [DE±2] [p<0,001]). Trece pacientes informaron estar muy satisfechos, 13 estaban satisfechos y solo 5 estaban poco satisfechos. Siete pacientes sufrieron complicaciones quirúrgicas y 4 tuvieron inestabilidad rotuliana recurrente. Con una media de 68,2 meses de seguimiento, la tasa de supervivencia global fue del 93,5%. Al considerar el rescate rotuliano secundario como punto final, la tasa de supervivencia fue del 80,6%. Conclusiones: En este estudio, la ATR se asoció con muy buenos resultados funcionales en pacientes con EP. A una media de 68,2 meses de seguimiento, la ATR tuvo una buena supervivencia a corto plazo, siendo la inestabilidad rotuliana recurrente la complicación más frecuente. Aunque estos hallazgos confirman la efectividad de la ATR en esta población, se necesita una evaluación clínica exhaustiva y un enfoque multidisciplinario para disminuir la probabilidad de complicaciones.(AU)

Introduction: Thanks to improvements in the medical treatment of Parkinson's disease (PD), the life expectancy of these patients has increased, but the overall outcome after total knee arthroplasty (TKA) is controversial. We aim to analyse a series of patients with PD, evaluating their clinical status, functional results, complications and survival rates after TKA. Methods: We retrospectively studied 31 patients with PD operated between 2014-2020. The mean age was 71 years (SD±5.8). There were 16 female patients. The mean follow-up was 68.2 months (SD±36). We used the Knee Scoring System (KSS) and the Visual Analog Scale (VAS) for the functional evaluation. The Modified Hoehn and Yahr Scale was used to assess the severity of PD. All complications were recorded, and survival curves were performed. Results: The mean postoperative KSS evaluation had an increase of 40 points [35 (SD±15) vs 75 (SD±15) (P<.001)]. The mean postoperative VAS decreased 5 points [8 (SD±2) vs 3 (SD±2) (P<.001)]. Thirteen patients reported being very satisfied, 13 were satisfied, and only 5 were poorly satisfied. Seven patients suffered surgical complications, and 4 patients had recurrent patellar instability. At a mean 68.2 months follow-up, the overall survival rate was 93.5%. When considering the secondary patellar resurfacing as the endpoint, the survival rate was 80.6%. Conclusions: In this study, TKA was associated with excellent functional outcomes in patients with PD. At a mean 68.2 months follow-up, TKA had excellent survivorship in the short term, with recurrent patellar instability as the most common complication. Even though these findings confirm the effectiveness of TKA in this population, a thorough clinical evaluation and multidisciplinary approach are needed to decrease the likelihood of complications.(AU)

[Translated article] Total knee arthroplasty is effective in patients with Parkinson's disease. Functional assessment and analysis of complications / La artroplastia total de rodilla en pacientes con enfermedad de Parkinson es efectiva. Evaluación funcional y análisis de complicaciones

Introducción: Gracias a las mejoras en el tratamiento médico de la enfermedad de Parkinson (EP), la esperanza de vida de estos pacientes ha aumentado. Los resultados generales después de la artroplastia total de rodilla (ATR) son controvertidos. Nuestro objetivo es analizar una serie de pacientes con EP, evaluando su estado clínico, resultados funcionales, complicaciones y tasas de supervivencia después de la ATR. Métodos: Se estudiaron retrospectivamente 31 pacientes con EP operados entre 2014-2020. La edad media fue de 71 años (DE±5,8). Había 16 pacientes mujeres. El seguimiento medio fue de 68,2 meses (DE±36). Se utilizó el Knee Scoring System (KSS) y la escala visual analógica (EVA) para la evaluación funcional. Se utilizó la escala modificada de Hoehn y Yahr para evaluar la gravedad de la EP. Se registraron todas las complicaciones y se realizaron curvas de supervivencia. Resultados: La evaluación media postoperatoria del KSS tuvo un aumento de 40 puntos (35 [DE±15] vs. 75 [DE±15] [p<0,001]). La media de EVA postoperatoria disminuyó 5 puntos (8 [DE±2] vs. 3 [DE±2] [p<0,001]). Trece pacientes informaron estar muy satisfechos, 13 estaban satisfechos y solo 5 estaban poco satisfechos. Siete pacientes sufrieron complicaciones quirúrgicas y 4 tuvieron inestabilidad rotuliana recurrente. Con una media de 68,2 meses de seguimiento, la tasa de supervivencia global fue del 93,5%. Al considerar el rescate rotuliano secundario como punto final, la tasa de supervivencia fue del 80,6%. Conclusiones: En este estudio, la ATR se asoció con muy buenos resultados funcionales en pacientes con EP. A una media de 68,2 meses de seguimiento, la ATR tuvo una buena supervivencia a corto plazo, siendo la inestabilidad rotuliana recurrente la complicación más frecuente. Aunque estos hallazgos confirman la efectividad de la ATR en esta población, se necesita una evaluación clínica exhaustiva y un enfoque multidisciplinario para disminuir la probabilidad de complicaciones.(AU)

Introduction: Thanks to improvements in the medical treatment of Parkinson's disease (PD), the life expectancy of these patients has increased, but the overall outcome after total knee arthroplasty (TKA) is controversial. We aim to analyse a series of patients with PD, evaluating their clinical status, functional results, complications and survival rates after TKA. Methods: We retrospectively studied 31 patients with PD operated between 2014-2020. The mean age was 71 years (SD±5.8). There were 16 female patients. The mean follow-up was 68.2 months (SD±36). We used the Knee Scoring System (KSS) and the Visual Analog Scale (VAS) for the functional evaluation. The Modified Hoehn and Yahr Scale was used to assess the severity of PD. All complications were recorded, and survival curves were performed. Results: The mean postoperative KSS evaluation had an increase of 40 points [35 (SD±15) vs 75 (SD±15) (P<.001)]. The mean postoperative VAS decreased 5 points [8 (SD±2) vs 3 (SD±2) (P<.001)]. Thirteen patients reported being very satisfied, 13 were satisfied, and only 5 were poorly satisfied. Seven patients suffered surgical complications, and 4 patients had recurrent patellar instability. At a mean 68.2 months follow-up, the overall survival rate was 93.5%. When considering the secondary patellar resurfacing as the endpoint, the survival rate was 80.6%. Conclusions: In this study, TKA was associated with excellent functional outcomes in patients with PD. At a mean 68.2 months follow-up, TKA had excellent survivorship in the short term, with recurrent patellar instability as the most common complication. Even though these findings confirm the effectiveness of TKA in this population, a thorough clinical evaluation and multidisciplinary approach are needed to decrease the likelihood of complications.(AU)

[Translated article] Total knee arthroplasty is effective in patients with Parkinson's disease. Functional assessment and analysis of complications.

INTRODUCTION: Thanks to improvements in the medical treatment of Parkinson's disease (PD), the life expectancy of these patients has increased, but the overall outcome after total knee arthroplasty (TKA) is controversial. We aim to analyse a series of patients with PD, evaluating their clinical status, functional results, complications and survival rates after TKA. METHODS: We retrospectively studied 31 patients with PD operated between 2014 and 2020. The mean age was 71 years (SD±5.8). There were 16 female patients. The mean follow-up was 68.2 months (SD±36). We used the knee scoring system (KSS) and the visual analogue scale (VAS) for the functional evaluation. The modified Hoehn and Yahr scale was used to assess the severity of PD. All complications were recorded, and survival curves were performed. RESULTS: The mean postoperative KSS evaluation had an increase of 40 points [35 (SD±15) vs 75 (SD±15) (p<.001)]. The mean postoperative VAS decreased 5 points [8 (SD±2) vs 3 (SD±2) (p<.001)]. Thirteen patients reported being very satisfied, 13 were satisfied, and only 5 were poorly satisfied. Seven patients suffered surgical complications, and 4 patients had recurrent patellar instability. At a mean 68.2 months follow-up, the overall survival rate was 93.5%. When considering the secondary patellar resurfacing as the endpoint, the survival rate was 80.6%. CONCLUSIONS: In this study, TKA was associated with excellent functional outcomes in patients with PD. At a mean 68.2 months follow-up, TKA had excellent survivorship in the short term, with recurrent patellar instability as the most common complication. Even though these findings confirm the effectiveness of TKA in this population, a thorough clinical evaluation and multidisciplinary approach are needed to decrease the likelihood of complications.

Total knee arthroplasty is effective in patients with Parkinson's disease. Functional assessment and analysis of complications. / La artroplastia total de rodilla en pacientes con enfermedad de Parkinson es efectiva. Evaluación funcional y análisis de complicaciones.

INTRODUCTION: Thanks to improvements in the medical treatment of Parkinson's disease (PD), the life expectancy of these patients has increased, but the overall outcome after total knee arthroplasty (TKA) is controversial. We aim to analyse a series of patients with PD, evaluating their clinical status, functional results, complications and survival rates after TKA. METHODS: We retrospectively studied 31 patients with PD operated between 2014-2020. The mean age was 71 years (SD±5.8). There were 16 female patients. The mean follow-up was 68.2 months (SD±36). We used the Knee Scoring System (KSS) and the Visual Analog Scale (VAS) for the functional evaluation. The Modified Hoehn and Yahr Scale was used to assess the severity of PD. All complications were recorded, and survival curves were performed. RESULTS: The mean postoperative KSS evaluation had an increase of 40 points [35 (SD±15) vs 75 (SD±15) (P<.001)]. The mean postoperative VAS decreased 5 points [8 (SD±2) vs 3 (SD±2) (P<.001)]. Thirteen patients reported being very satisfied, 13 were satisfied, and only 5 were poorly satisfied. Seven patients suffered surgical complications, and 4 patients had recurrent patellar instability. At a mean 68.2 months follow-up, the overall survival rate was 93.5%. When considering the secondary patellar resurfacing as the endpoint, the survival rate was 80.6%. CONCLUSIONS: In this study, TKA was associated with excellent functional outcomes in patients with PD. At a mean 68.2 months follow-up, TKA had excellent survivorship in the short term, with recurrent patellar instability as the most common complication. Even though these findings confirm the effectiveness of TKA in this population, a thorough clinical evaluation and multidisciplinary approach are needed to decrease the likelihood of complications.

Fracture of a triple-polished tapered cemented femoral stem at the Morse taper after metal-on-metal primary total hip arthroplasty.

Total hip arthroplasty, one of the most successful orthopaedic procedures, is influenced by several variables. Corrosion at the modular junction is known as trunnionosis. Despite being reported infrequently, corrosion between the femoral head and the Morse taper can result in severe complications. Fracture of the femoral component in primary metal-on-metal (MoM) total hip arthroplasty at the Morse taper is an extremely rare event and can be associated with several risk factors. We report a case of corrosion at the Morse taper in a hybrid primary MoM total hip arthroplasty, resulting in Morse taper fracture with consequent femoral head entrapment inside the acetabular component. We hypothesise that some risk factors, such as age over 60years, active male patients, body mass index above 30kg/m2, large femoral heads, high-offset stems, 9/10 Morse taper and MoM-bearing surfaces, are associated with this mode of failure.

Gait instability may indicate liner failure in patients with total hip arthroplasty. A report of three cases.

Total hip arthroplasty is one of the most common and successful orthopaedic procedures performed worldwide. Uncemented modular acetabular components and highly cross-linked polyethylene liners are the implants of choice for most arthroplasty surgeons. However, despite their well-known benefits, highly cross-linked polyethylene liners are not without complications, such as rim fracture, rupture and dissociation. We report three patients with gait instability and radiographic subluxation due to highly cross-linked polyethylene liner failures evidenced during stage one revision surgery. The three patients were symptoms free, with no new instability episodes, and the radiographs showed no evidence of implant loosening at the most recent follow-up. Although it is a rare complication, these three cases highlight the importance of suspecting and evaluating highly cross-linked polyethylene liner failures in patients referred for gait instability with no history of previous trauma.

Six-stage revision surgery of a triple periprosthetic joint infection due to a delayed diagnosis of a bilateral psoas abscess: a case report.

CASE: We present a case of a 70-year-old woman with simultaneous periprosthetic joint infection (PJI) of both hips and left knee due to a bilateral psoas abscess. The patient underwent debridement and implants removal with the consequent reimplantation in a sequential six-stage revision surgery. At four years of follow-up and in spite of the patient's comorbidities and current PJI presentation, she maintains full activities of daily living without restrictions. CONCLUSION: Accurate and early diagnosis of a psoas abscess is crucial. This case report provides experience of a complex scenario, the decision-making involved and the outcomes of an underdiagnosed complication.

¿Es útil la artroscopia de cadera para el tratamiento de la displasia limítrofe?: análisis de casos y controles / Is hip arthroscopy useful in the treatment of borderline dysplasia?: a case-control study

INTRODUCCIÓN: Puesto que la artroscopia de cadera es controversial en el tratamiento de la displasia, nuestro objetivo fue analizar sus resultados clínicos y radiológicos en una cohorte de pacientes con displasia limítrofe y compararlos con controles con choque femoroacetabular (CFA). MATERIAL Y MÉTODOS: Analizamos retrospectivamente a un grupo de 29 pacientes con lesión labral secundaria a displasia limítrofe de cadera y a otro de 197 con CFA, ambos tratados con artroscopia, evaluando las reoperaciones y la supervivencia articular. El diagnóstico de displasia limítrofe se realizó con un ángulo centro-borde lateral mayor de 18° pero menor de 25°. El seguimiento promedio fue de 43 meses. Realizamos un análisis de regresión multivariada para evaluar la asociación de recirugía con distintas variables demográficas, radiológicas e intraoperatorias. RESULTADOS: Se registraron 7 complicaciones en el grupo CFA (una infección superficial tratada médicamente, 3 parestesias de nervio pudendo, una trombosis venosa profunda y 2 casos de calcificación heterotópica) y ninguna en el grupo displasia. Mientras que 5 pacientes del grupo CFA requirieron una nueva cirugía, ninguno del grupo displasia fue reintervenido (p = 0,38). Luego de ajustar por confundidores, la reoperación demostró una asociación muy fuerte con el hallazgo de lesiones osteocondrales, con un coeficiente de 0,12 (p < 0,001, IC95%=0,06-0,17). CONCLUSIÓN: La artroscopia de cadera resultó útil en el tratamiento de la displasia limítrofe, sin hallarse diferencias de supervivencia con el grupo CFA. Sugerimos indicarla en forma cuidadosa en la displasia, siempre que primen los síntomas de roce femoroacetabular por sobre los de inestabilidad

INTRODUCTION: Since arthroscopy remains a controversial treatment of hip dysplasia, our objective was to analyse its clinical and radiological results in a cohort of patients with dysplasia and compare them to controls with femoroacetabular impingement (FAI). MATERIAL AND METHODS: We retrospectively analysed a series of patients who underwent hip arthroscopy for the treatment of labral pathology; 29 of them with borderline hip dysplasia and 197 with FAI, comparing reoperations and joint survival. The diagnosis of borderline dysplasia was made with a lateral centre-edge angle greater than 18° but less than 25°. The average follow-up was 43 months. We performed a multivariate regression analysis to evaluate the association of reoperations with different demographic, radiological and intraoperative variables. RESULTS: Seven complications were registered in the FAI group (1 medically treated superficial wound infection, 3 pudendal nerve paraesthesias, 1 deep vein thrombosis and 2 heterotopic ossifications) and none in the dysplasia group. While 5 patients from the FAI group required a new surgery, none of the dysplasia group was re-operated (p=.38). After adjusting for confounders, reoperation showed a very strong association with the finding of osteochondral lesions during index surgery, with a coefficient of .12 (p<.001, 95%CI=.06-.17). CONCLUSION: Hip arthroscopy was useful in the treatment of borderline dysplasia, without non-inferior survival compared to the FAI group. We suggest indicating it carefully in dysplasia cases, whenever the symptoms of femoroacetabular friction prevail over those of instability

Is hip arthroscopy useful in the treatment of borderline dysplasia?: a case-control study. / ¿Es útil la artroscopia de cadera para el tratamiento de la displasia limítrofe?: análisis de casos y controles.

INTRODUCTION: Since arthroscopy remains a controversial treatment of hip dysplasia, our objective was to analyse its clinical and radiological results in a cohort of patients with dysplasia and compare them to controls with femoroacetabular impingement (FAI). MATERIAL AND METHODS: We retrospectively analysed a series of patients who underwent hip arthroscopy for the treatment of labral pathology; 29 of them with borderline hip dysplasia and 197 with FAI, comparing reoperations and joint survival. The diagnosis of borderline dysplasia was made with a lateral centre-edge angle greater than 18° but less than 25°. The average follow-up was 43 months. We performed a multivariate regression analysis to evaluate the association of reoperations with different demographic, radiological and intraoperative variables. RESULTS: Seven complications were registered in the FAI group (1 medically treated superficial wound infection, 3 pudendal nerve paraesthesias, 1 deep vein thrombosis and 2 heterotopic ossifications) and none in the dysplasia group. While 5 patients from the FAI group required a new surgery, none of the dysplasia group was re-operated (p=.38). After adjusting for confounders, reoperation showed a very strong association with the finding of osteochondral lesions during index surgery, with a coefficient of .12 (p<.001, 95%CI=.06-.17). CONCLUSION: Hip arthroscopy was useful in the treatment of borderline dysplasia, without non-inferior survival compared to the FAI group. We suggest indicating it carefully in dysplasia cases, whenever the symptoms of femoroacetabular friction prevail over those of instability.