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INTRODUCTION: The elderly population candidate for total hip arthroplasty (THA) is increasing exponentially in developed countries, due to the high prevalence of osteoarthritis (OA). The objective is to identify the overall survival in patients over 85 years with primary OA who underwent THA. MATERIAL AND METHODS: Retrospective observational study in patients over 85 years with primary hip OA undergoing THA between 2012 and 2019. Demographic, clinical, comorbidity, complications, functionality and pain variables were collected. A descriptive analysis was performed, survival was estimated with the Kaplan-Meier method and the differences in pain and functionality before and after surgery with the McNemar-Bowker test. RESULTS: We included 66 patients, 40 women and 26 men with a mean age of 87.22 years, of whom 15 had high comorbidity (Charlson>2). Only 14 patients presented complications in the postoperative period, the most frequent was confusional syndrome (5); and the most serious was a death (1), with a median hospital stay of 8 days. Two cases of dislocation were detected over a mean follow-up of 3.61 years, without requiring revision surgery. Improvement of pain was evident after surgery (p<.0001). The median overall survival is 6.77 years, with no difference in survival adjusted by the Charlson index (p=.75) or by ASA anaesthetic group (p=.23). CONCLUSIONS: With good patient selection, THA is a good option for patients over 85 years of age with functional limitations or pain due to OA.
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BACKGROUND: Lateral wall fracture has been recognized as an important sign of instability of pertrochanteric fractures. The aim of the present study is to assess the relationship between lateral wall fractures, helical blade telescoping and neck shortening in fractures treated with intramedullary nailing. MATERIAL AND METHOD: A descriptive radiological study was performed at our institution. Patients who suffered a pertrochanteric fracture, treated at Hospital 12 de Octubre by intramedullary nailing were included. All fractures were classified according to Evans and AO systems. Preoperative and postoperative radiological assessment was carried out including a lateral wall fracture classification, helical blade telescoping and femoral neck shortening. RESULTS: 210 patients were included, 48% had a fracture of the femoral lateral wall. Helical blade telescoping was higher in lower lateral wall fractures with respect to higher fractures. Difference was statistically significant (p<0.05). Neck shortening was higher in fractures with femoral lateral wall disruption; despite not have found any significant differences comparing to fractures with intact lateral wall (P=.39). Multivariate analysis showed statistically significant association between helical blade telescoping, neck shortening and lateral wall fracture. CONCLUSIONS: There is evidence of a higher helical blade telescoping and neck shortening in pertrochanteric fractures with lateral wall fracture treated with intramedullary nails, especially in those with most unstable patterns such us fractures of the lateral wall distal to the vastus ridge.
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INTRODUCTION: The objective of this study is to assess the type, frequency and severity of complications after the implantation of the modular monopolar radial head prosthesis. MATERIAL AND METHODS: Forty-seven patients with 48 radial head prostheses implanted between 2009 and 2017 were reviewed retrospectively. Patients were evaluated clinical and radiographically for a mean follow-up of 43.55 months (range: 12-89). RESULTS: The same type of prosthesis was implanted in every patient (Ascension Modular Radial Head). The average score in the Mayo Elbow Performance Score was 88.29 ± 9.9 points. During the follow-up, three patients (6.25%) suffered from continuous pain. Twelve cases (25.5%) showed radiological oversizing, though only five were symptomatic. Heterotopic ossification was detected in twenty-seven cases (57.4%). Eleven patients (23.4%) developed postoperative stiffness. Nineteen cases (40.42%) showed periprosthetic osteolysis, from which seven were symptomatic. Thirteen patients (27%) developed surgery-related complications: three cases of infection, four cases of symptomatic loosening, two neurapraxies, one instability and three cases of oversizing with associated stiffness. Nine patients (18.75%) required reintervention. DISCUSSION: Our study obtains a 27% of overall complications, mostly related to oversizing and prosthetic loosening, and 19% of reinterventions. These results are similar to those presented in previous studies, with variations depending on the time of follow-up. Further research is also required to evaluate long-term results and the potential progression of the radiographic findings. CONCLUSION: Taken together, these data stress the need for improvement in both the surgical technique and the design of the implants.
INTRODUCCIÓN: El objetivo de este estudio es evaluar el tipo, la frecuencia y la gravedad de las complicaciones después de la implantación de la prótesis monopolar modular de cabeza radial. MATERIAL Y MÉTODOS: Se revisaron retrospectivamente 47 pacientes con 48 prótesis de cabeza radial implantadas entre 2009 y 2017 durante una media de 43.55 meses (rango: 12-89). RESULTADOS: Se implantó el mismo tipo de prótesis en cada paciente (Ascension Modular Radial Head). La puntuación media obtenida en la clasificación Mayo Elbow Performance Score fue de 88.29 ± 9.9 puntos. Durante el seguimiento tres pacientes (6.25%) sufrieron dolor continuo. Doce casos (25.5%) mostraron sobredimensión radiológica, aunque sólo cinco fueron sintomáticos. Se detectó osificación heterotópica en 27 casos (57.4%), 11 pacientes (23.4%) desarrollaron rigidez postoperatoria, 19 casos (40.42%) mostraron osteólisis periprotésica, de los cuales siete fueron sintomáticos, 13 pacientes (27%) presentaron complicaciones: tres casos de infección, cuatro casos de aflojamiento sintomático, dos neuroapraxias, una inestabilidad y tres casos de sobredimensionamiento con rigidez asociada. Nueve pacientes (18.75%) fueron reintervenidos. DISCUSIÓN: Presentamos 27% de complicaciones globales, principalmente relacionadas con la sobredimensión y el aflojamiento protésico y 19% de reintervenciones. Estos resultados son similares a los descritos en estudios previos con variaciones en función del tiempo de seguimiento. Asimismo, se requieren nuevos estudios para evaluar los resultados a largo plazo y la posible progresión de los hallazgos radiográficos. CONCLUSIÓN: En conjunto, estos datos ponen de manifiesto la necesidad de mejoría tanto de la técnica quirúrgica como del diseño de los implantes.
