– Mosaicplasty: – refers to the technique of harvesting small circular (4-8 mm) autogenous grafts from the knee from non wt bearing regions of the knee, and transplanting the grafts in a mosaic pattern until the osteochondral defect is filled; – typically the grafts are harvested from the periphery of the supero-lateral trochlea, but often, the … Read more
– Evaluate for: – lateral talar shift: – medial clear space – deltoid injury – fibular shortening; – talocrural angle – tibiofibular line – fibular rotation, or lateral displacement; – tibiofibular line – syndesmotic integrity (see radiographs) – talar tilt: (stability) – osteochondral lesions of talus – Discussion: – fibular length, talar tilt, talar … Read more
– See: Watson Jones Approach Smith Peterson Approach – Discussion: – in direct lateral approach, a curvilear split is made thru the anterior portion of the gluteus medius and vatus muscles, in order to gain access to the anterior face of the hip joint; … Read more
– Discussion: – forefoot is most commonly affected portion of rheumatoid foot; – forefoot deformities include: – claw toe or hammer toe of lateral four toes; – severe hallux valgus – plantar keratosis beneath subluxed or … Read more
– See: Ankle Sprains – Discussion: – indications: – clinical symptoms are chief indications (radiographic findings may or may not correlate w/ the severity of the sprain and ankle dysfunction; – associated injuries: – longitudinal tear of the peroneus brevis: – contra-indications: – fixed heel varus; – obese patients; – Radiographs: … Read more
– Discussion: – growth-remaining method – straight-line graph method – arithmetic method is the simplest, but least accurate. – proximal femoral physis:: – 4 mm / yr (1/8 in/yr) – distal femoral physis: – … Read more
– Discussion: – a condition in which the there is medial displacement of the metatarsals on the cuneiform; – forefoot is adducted at the tarsal metarsal joint; – usually seen in the first year; – is bilateral in 50% of patients may be associated with hip displasia … Read more
– Discussion: – in the normal foot, metatarsal heads bear one half of a person’s body wt, when the foot is plantigrade; – the first metatarsal normally bears half the wt of the forefoot; – long 2nd metatarsal can contribute to pressure under metatarsal head; – limitation of dorsiflexion (from heel cord contracture or ankle … Read more
– Discussion: – femoral component is made of chrome colbalt alloy w/ its proven wear characteristics articulating with high density poly ethylene; – tibial & patella components are metal backed w/ titanium alloy; – enhance fatigue strength of titanium decreases potential for stress fracture of the metallic tibial tray; – in metal back patella component, the … Read more
– Discussion: – heterogeneous group of intrinsic dysplasias characterized by x-ray changes in the metaphysesof the short and long tubular bones (epiphyses remains normal); – defect appears to lie in proliferative & hypertrophic zones of physis; – hypercalcemia is common; – diff dx: … Read more