– See: Radiograhpic Evaluation – Anatomy – Biomechanics – Multipartite Patella – Chondromalacia – Dislocation of the Patella – Examination of the Patellofemoral Joint – Fractures of the Patella – Jumper’s Knee – Lateral Retinacular Release – Patella Alta – Pathology – Patella … Read more
– See: TKR Menu – Discussion: – anatomy / q angle – blood supply to the knee – indications for patellar resurfacing – design and function of the patellar component in TKR: – effects of component rotation – Patellar Resurfacing: (technique) – indications for patellar resurfacing – lateral retinacular release: – Non Resurfaced Patella Considerations: … Read more
– See: – Malposition of Joint Line: – Patellar Clunk Syndrome: – Discussion: – more frequent than patella alta; – data suggest that maintenance of a ht between 10 and 30 mm is optimal – this problem may be prevented by keeping resection … Read more
– See: – Lateral radiograph of the Knee – Patella Infera – Subluxation of the Patella – Discussion: – patella alta refers to an abnormally high patella in relation to femur; – may result in Subluxation and dislocation of patella; – Associated Conditions: … Read more
– See: – Bone Tumor Menu: – Classic Osteosarcoma – Discussion: – parosteal osteosarcoma is a low-grade malignant bone tumor that usually occurs on the surface of the metaphysis of long bones; – arises between cortex and muscle as a low grade stage I-A surface tumor (ie does not initially invade … Read more
– Discussion: – distal end of femur is hypoplastic, tibia is absent, & proximal dislocation of fibular head; – incidence is 1 in 1 million. – has a familial inheritance; – tibial hemimelia may be terminal or intercalary, complete or incomplete. – 30% percent of … Read more
– See: THR Main Menu and Radiographic evaluation of THR – Discussion: – normal gait adaptions: – trendelenburg limp after THR is a clinical sign of gluteal insufficiency; – static trendelenburg sign: drop of the pelvis on the contralateral side while the individual stands on the operative side; – many patients will compensate for … Read more
– Discussion: – a chronic progressive disease osteoblasts and osteoclasts which results in abnormal bone remodeling; – etiology, staging, and pathogenesis – prevalence: – uncommon in pts under age of 55 yrs but relatively common in later life, occurring in 3-4% of persons over 55 yrs & occurs in 10% in pts over age 80; – reference: – … Read more
It is estimated that as many as 40 million Americans or 1 in 7 people have some form of arthritic disease. It has been reported that arthritis is the number one cause of disability in America, limiting the everyday activities for approximately seven million individuals. The efforts of medical … Read more
– Pathogenesis: – see: hematogenous osteomyelitis and pediatric bone circulation – tortuous course of the nutrient vessels in bone causes bacteria to be trapped in the metaphysis; – once lodged in the metaphysis, the infection spreads toward the epiphysis; – in neonates the periosteum … Read more