Comparative Outcomes Between Cruciate-Retaining and Posterior-Stabilized Prostheses in Total Knee Arthroplasty.

Introduction Total knee arthroplasty (TKA) is the definitive surgical treatment for advanced gonarthrosis when conservative measures fail. Among the available implant designs, posterior cruciate-retaining (PCR) and posterior-stabilized (PS) prostheses are widely used, yet their comparative performance in long-term functional recovery and health-related quality of life remains under debate. Methods We conducted a prospective observational study involving 48 elderly patients undergoing primary TKA at a tertiary-care center in Mexico.

Surgical Management of a Proximal Tibial Epiphyseal Fracture in a Pediatric Patient with Osteogenesis Imperfecta.

Osteogenesis imperfecta (OI) is a heritable connective tissue disorder characterized by defective type I collagen synthesis, leading to reduced bone strength and increased susceptibility to fractures, often with minimal trauma. Fractures involving the tibial tuberosity are rare and typically occur in adolescents during periods of rapid growth, usually following high-demand activities. We report a case of a 14-year-old male with type I OI who sustained a displaced tibial tuberosity avulsion fracture with epiphyseal and intra-articular extension (Salter-Harris type III, Ogden type IIIA) following low-energy trauma.