– origin: – outer surface of ilium between anterior and inferior gluteal lines and margin of greater sciatic notch; – insertion: anterior border of greater trochanter; – action: – abducts femur at the hip and rotates it medially; – lateral pelvic stabilizer; … Read more
– Discussion: – a common benign but locally aggressive lesion of unknown etiology; – occurs chiefly in men between 20-50 yrs (after epiphyseal closure); – tumor is expansile lytic lesion that involves the epiphysis & metaphysis; – tumor may enlarge to occupy most of epiphysis & adjacent metaphysis; … Read more
Achondroplasia Multiple Epiphyseal Dysplasia Multiple Cartilaginous Exostoses Osteogenesis Imperfecta Marfan’s Mucopolysaccharidoses Hypophosphatemic Vitamin D-resistant rickets Medical Progress: Epiphyseal Disorders. Pathogenic mechanisms in osteochondrodysplasias. Asymmetrical arrest of the proximal tibial physis and genu recurvatum deformity. Adolescent tibia vara: alternatives for operative treatment.
– Discussion: – bilateral angular deformity: common and is most often physiologic; – normal knee alignment progresses from 10-15 deg of varus at birth to maximal valgus angulation of 10-15 deg at age of 3-3.5 yrs; – neutral alignment: … Read more
– Discussion: – medial and lateral muscle bellies each carry long flaps of skin and fascia from the posterior calf and are most often used as myocutaneous flaps; these flaps are most useful for upper tibial defect reconstruction; – Contra-indications: – knee dislocation or … Read more
– Discussion: – bone provides and environment that significantly alters interaction between bacterial and host defenses in favor of the invader; – bone contains numerous microscopic channels, the walls of which are impermeable to such host defenses as the large molecules of immunoglobulins; – bacteria, once gaining a foothold in these … Read more
– See: – Achilles Tendon: – Gastrocnemius Flap: (see reconstructive surgery for the leg): – Anatomy: (see superficial posterior compartment); – origin: – lateral head: lateral condyle and posterior surface of femur; – medial head: medial condyle … Read more
– Positioning and Prepping: The patient is placed on a beanbag support in the lateral position. The entire axilla to foot area is prepped with betadine solution. A waterproof stockinette is used on the lower extremity with a sterile tourniquet in place at the thigh. Betadine impregnated vidrapes are used to isolate the hip and … Read more
– Technique: When the lateral femur is exposed, a 3 mm guide pin is placed into the center of the necrotic area. Care must be taken, particularly on the lateral view, that there is enough room in the neck on both sides of the guide pin to pass a 21 mm reamer if needed. The … Read more
– Discussion: – Fibular Harvest: – Hip Preparation: Various methods have been advocated for the treatment of acascular necrosis of the hip in the young patient. From the literature an operative treatment for the symptomatic hip is the conservative method of management. Reports on core decompression, osteotomies, electrical stimulation, and bone grafting have been difficult … Read more