The patella, with or without resurfacing, plays a fundamental role in the success of a total knee arthroplasty (TKA). Patellofemoral joint complications are due to problems related to the patient, to the surgical technique, or to the design of the components. Patellar tracking is influenced by several factors: a severe preoperative valgus, the presence of pre-existing patellofemoral dysplasia, ...

PURPOSE To describe and quantify a radiological phenomenon where the distal tibial plafond appears in valgus malalignment in intra-operative fluoroscopy owing to 15 degrees craniocaudal angulation of the X-ray beam. METHODS The lateral distal tibial angle (LDTA) of 14 male and 9 female skeletally mature patients was measured by a single reviewer using 2 types of anteroposterior radiographs, i...

We hypothesized that less malalignment and complications occur with intramedullary nailing of distal third tibia fractures (42A, B, C) after the implementation of orthopedic trauma surgeons to this level II community hospital. We also hypothesized that patients with < or =5 degrees of malalignment have poorer function as measured by the MODEMS functional outcome scale. Two cohorts of distal thi...

PURPOSE To measure the effects of distal radius malalignment on loading at the distal ulna. METHODS Using an adjustable mechanism to simulate angulated and translated malalignments, clinically relevant distal radius deformities were simulated in a cadaveric model. A custom-built load cell was inserted just proximal to the native ulna head to measure the resultant force and torque in the dista...

Failed reconstruction of the anterior cruciate ligament (ACL) in a young, active patient represents a difficult clinical problem. Numerous factors contribute to failure, including repeat trauma, technical errors, biologic influences, or a combination of causes. Technical errors commonly include femoral and tibial tunnel malposition, inadequate graft fixation, failure to address associated poste...

Introduction: Suprapatellar (SP)-nailing versus infrapatellar (IP)-nailing for distal shaft tibia fractures and post-operative complications like anterior knee pain sequelae such as malalignment, retropatellar chondropathy infection, well physical functioning quality of life were the primary objectives this study.Methods: Department Orthopaedics is conducting a study on topic. Group A (16 cases...

We describe the radiographic measurement of the angle of tilt of the patella and relate it to malalignment of the extensor mechanism. The tilt angle is defined as the angle subtended by a line joining the medial and lateral edges of the patella and the horizontal. The radiograph (Merchant type) is taken with the foot pointing up, the lower edge of the film parallel to the ground, and the knee a...

High tibial osteotomy is effective for managing a variety of knee conditions, including gonarthrosis with varus or valgus malalignment, osteochondritis dissecans, osteonecrosis, posterolateral instability, and chondral resurfacing. The fundamental goals of the procedure are to unload diseased articular surfaces and to correct angular deformity at the tibiofemoral articulation. Although the clin...