Tibia and Fibula
Osteochondrosis / Stress Frx of Medial Epicondyle
– See: Pediatric Elbow Injuries – Discussion: – a traction apophysisitis of the medial epicondyle which needs to be distinguished from avulsion frx of the medial epicondyle – the medial epicondyle is an apophysis which is connected to the MCL as well as being connected to the flexor-pronator mass; – both of these structures will … Read more
Osteochondral Lesions of the Talus
– Discussion: – although a traumatic etiology is believed to play a major role in production of these lesions, idiopathic osteonecrosis may be another factor; – anterolateral lesions: – may result from impaction of talus on fibula as the dorsiflexed ankle is forced into inversion (see ankle sprain); – the vast majority are caused by trauma; … Read more
Osteochondritis Dissecans of the Knee
– See: Osteochondral Lesions of the Adult Knee – Discussion: – term OCD is a defect in the subchondral region with partial or compete separation of the bone fragment; – most often seen on the postero-lateral aspect of the medial femoral condyle (about 80% of cases), and less often seen in … Read more
Osteochondroma / Osteocartilaginous Exostosis
– Discussion: – a developmental dysplasia of peripheral growth plate which forms a cartilage capped projection of bone found near metaphyses of long bones; – peripheral chondroblast grows outward from the metaphysis, acting as an ectopic growth plate, which ceases growth at skeletal maturation; … Read more
Osteoarthritis of the Knee
– See: – Osteoarthritis Menu: – predisposing conditions – pathology and histology – clinical features – Discussion: – biomechanical considerations: (see kinematics and anatomy of knee – thick cartilaginous surfaces of … Read more
Osgood Schlatter Lesion
– Discussion: – refers to partial avulsion of the tibial tuberosity (anterior surface of apophysis) which has no involvement of tibial physis; – usually occurs in late childhood or early adolescence; – more common in boys; – may represent an over use disease; – repetitive stress on tuberosity may cause partial avulsion; – a painful non … Read more
Orthotic Management of Blounts Disease
– Discussion: – principle of orthotic management in infantile tibia vara is alteration of abnormal compressive forces so that normal growth will resume & genu varum will be corrected; – patient age: – historically, bracing has been the treatment of choice for a child 14 … Read more
Orthotics for the Foot
– See: Metatarsalgia: and Running Injuries – Discussion: – functional anatomy: – normal foot during gait will become supple by eversion to allow for wt bearing during heel strike, and will become a rigid lever during push off by heel inversion; – in … Read more
Os Trigonum / Posterior Talar Impingement
– See: – Diff Dx: Posterior Ankle Pain – Fractures of Posterior Talar Process – Discussion: – accessory bone found just posterior to talus (accessory ossification center of the posterior process of the talus); – it may be considered a non united portion of the lateral tubercle; … Read more
