ABSTRACT
Introduction: Aseptic and septic loosening by mechanical failure is one of the main causes of proximal femur endoprosthesis failure with different clinical consequences such as pain, inflammation, progressive loosening of muscular volume, and strength with functional limitation. We present a case series of four patients with aseptic and septic loosening of femur endoprosthesis that was treated with a novel technique that combines different methods to achieve primary stability. Case Report: Four patients with an average age of 49.5 years (35-70 years), two women and two men, were referred to the Orthopedic Surgery Department of the San Ignacio University Hospital of Bogota. Two of them with a history of oncological disease, ruling out a tumor relapse through local images and extension examinations; another patient with a history of firearm injury to the left thigh with multiple secondary complications, which required various reconstructive procedures; and the oldest patient with a history of total hip replacement. The main complaint of the four patients was thigh pain not caused by trauma and initial assessment radiographs of all of them showed signs of loosening of the prosthetic material, with septic etiology in two of the patients and aseptic etiology in the other two. Therefore, they were scheduled for revision surgery of prosthetic components. These patients recover functional status and resolved pain in the early post-operative period and during long-term follow-up. Only one of the patients, time after the surgical procedure, required removal of the osteosynthesis material due to persistent bone infectious process. Conclusion: Septic and aseptic loosening is one of the most common complications of proximal femur endoprosthesis, resulting in significant pain and functional decline in patients. We present a novel surgical technique that allows primary stabilization of the construct that allows early rehabilitation, improvement of functionality, and no signs of new loosening.
ABSTRACT
BACKGROUND: When approaching a joint replacement procedure, pre-surgical planning is essential to predict an accurate estimation of implant size and position. There are currently two methods to achieve it, analog and digital. The present study aims to demonstrate how the hybrid technique is accurate and precise for pre-surgical planning in a non-cemented total hip replacement. METHODS: Concordance-type study is used against a gold standard, as well as inter- and intra-observer consistency evaluation of two orthopedic surgeons and two orthopedic surgery residents. Accuracy was calculated with the intra-class correlation coefficient (ICC). Afterwards, the same calculation was done considering a margin of error with one size more and one less. RESULTS: Thirty-eight patients were included in the study: 19 women and 19 men. Twenty-two prostheses (57.89%) were right-sided and 16 were left (42.11%). Twelve prostheses (31.57%) were Stryker and 26 Johnson & Johnson (68.43%). Acetabular cup correlation compared with the gold standard was moderate: ICC reported 0.45 (95% CI, 0.15-0.76). When adjusted by ± 1 size, ICC was 0.48 (95% CI, 0.18-0.79). On the other hand, results from the femoral stem reported ICC 0.85 (95% CI, 0.07-0.98). When adjusted by ± 1 size, ICC was 0.86 (95% CI, 0.06-0.99). CONCLUSIONS: Hybrid templating is a reliable substitute for analog or digital planning. It is quick, inexpensive, accurate, and better results are observed in the femoral component regardless the level of expertise of the evaluator. LEVEL OF EVIDENCE: Grade IV.
Subject(s)
Arthroplasty, Replacement, Hip , Hip Prosthesis , Image Processing, Computer-Assisted/methods , Precision Medicine/methods , Preoperative Care/methods , Prosthesis Design/methods , Acetabulum/surgery , Acetates , Female , Femur/surgery , Humans , Male , Observer Variation , Osteoarthritis, Hip/surgery , Patient-Specific Modeling , Planning Techniques , Reproducibility of Results , Retrospective StudiesABSTRACT
Se trata de un paciente masculino de 31 años con diagnóstico de fibroma condromixoide del ilíaco derecho manejado en el Hospital Universitario San Ignacio en febrero del 2018. El paciente fue llevado inicialmente a biopsia abierta para confirmación histológica, posteriormente fue llevado a embolización preoperatoria, manejo intralesional con curetaje, fresado extendido, manejo adyuvante local y aplicación de cemento óseo. Se realiza seguimiento postoperatorio por 18 meses sin evidencia clínica ni radiográfica de recidiva tumoral. El objetivo de este trabajo es hacer una revisión de la literatura sobre el fibroma condromixoide con énfasis en su localización pélvica y su tratamiento.
We report a case of a 31-year-old male patient with diagnosis of chondromyxoid fibroma (CMF) of the iliac bone diagnosed at Hospital Universitario San Ignacio in february 2018; an open biopsy allowed recognizement and description of cytologic features, forward diagnosis and treatment with combination of pre-operative embolization, local and extended curettage, local adyuvance and bone cement as described. At 18 months follow-up have found the patient remains without clinical or radiologic recurrence of CMF. We made a review of literature on chondromixoid fibroma emphasizing on pelvic bones compromise regarding diagnosis and management options.
Subject(s)
Humans , Fibroma , Pelvis , IliumABSTRACT
Introducción La parálisis cerebral (PC) es un grupo de trastornos no progresivos del movimiento y la postura que se produce como resultado de una lesión en el cerebro durante el desarrollo. Se asocia a fracturas afectando la región supracondílea del fémur principalmente. El objetivo general de este estudio fue determinar cuál es la prevalencia de fracturas en niños con PC en el Instituto Roosevelt entre Enero y Diciembre de 2017. Materiales y métodos Se realizó un estudio descriptivo de corte transversal teniendo como variables la edad, sexo, nivel funcional (GMFCS), uso de anticonvulsivantes y presencia de gastrostomía, siendo el desenlace la presencia de fractura. Resultados Se identificaron 648 pacientes con parálisis cerebral dentro de los cuales un total de 5 pacientes presentaron fracturas para una prevalencia calculada de 0.0187, todas fueron localizadas en la región supracondílea del fémur. Dos pacientes (40%) recibieron manejo ortopédico y tres pacientes (60%) manejo quirúrgico con osteosíntesis. 2 pacientes (40%) presentaban GMFCS I, 1 paciente (20%) GMFCS II y 2 pacientes (40%) GMFCS V. Ningún paciente tenía gastrostomía ni recibía anticonvulsivantes. Discusión La incidencia de fracturas en la población a estudio fue más baja que lo reportado en la literatura, la región supracondílea del fémur fue la más afectada en el presente estudio, sin complicaciones en el seguimiento. No se identificó asociación con gastrostomía ni uso de anticonvulsivantes.
Background Cerebral palsy (CP) is a group of non-progressive movement and posture disorders that occurs as a result of an injury to the brain during development. It is associated with fractures mainly affecting the supracondylar region of the femur. The general objective of thestudy was to determine the prevalence of fractures in children with CP at the Roosevelt Institute between January and December 2017. Methods A descriptive cross-sectional study was carried out taking as variables age, sex, functional level (GMFCS), use of anticonvulsants and presence of gastrostomy, defining the outcome as the presence of fracture. Results 648 patients with cerebral palsy were identified, within which a total of 5 patients presented fractures for a calculated prevalence of 0.0187, all were located in the supracondylar region of the femur. Two patients (40%) received orthopedic management and three patients (60%) surgical management with osteosynthesis. Two patients (40%) presented GMFCS I, 1 patient (20%) GMFCS II and 2 patients (40%) GMFCS V. No patient had a gastrostomy or received anticonvulsants. Discussion The incidence of fractures in the study population was lower than that reported in the literature, the supracondylar region of the femur was the most affected in the present study, without complications during follow-up. No association with gastrostomy or use of anticonvulsants was identified.
