The Hip - book

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Chinese Fasciocutaneous Radial Rorearm Flap

– Discussion:     – standard forearm flap is vascularized by a pedicle that consists of the radial artery and two vena comitantes that are ligated proximally and             turned distally toward the defect in the hand;     – it provides a thin, vascularized wound cover and a vascular bed for skin grafting;     – … Read more

Chiari Osteotomy

(See also: Acetabular Osteotomies) Discussion a acetabular osteotomy salvage procedure which is indicated in patients without a concentrically reducible hip; modified shelf osteotomy above acetabulum w/ medial displacement of acetabulum; distal fragment is displaced medially and upward as osteotomy hinges on the symphysis pubis; hip capsule is interposed between newly formed acetabular roof & femoral head; relies … Read more

Chevron Osteotomy

– Discussion: – in this procedure, a “V” shaped osteotomy of the distal metatarsal is created, which allows the first MT head to be shifted laterally, correcting the abnormal shape from long standing valgus drift; – effect on blood supply:            – Circulatory disturbance of the first metatarsal head after Chevron osteotomy as shown by … Read more

Chemotherapy References in the Rx of Osteosarcoma

– See chemotherapy discussion Neoadjuvant chemotherapy for osteosarcoma of the extremity. Neoadjuvant chemotherapy for nonmetastatic osteosarcoma of the extremities. Adjuvant chemotherapy of high-grade osteosarcoma of the extremity. Updated results of the Multi-Institutional Osteosarcoma Study. Local control and survival from the Cooperative Osteosarcoma Study Group studies of the German Society of Pediatric Oncology and the Vienna … Read more

Chemotherapy Agents

  – Agents:     – doxorubicin/adriamycin:     – cis platin     – methotrexate: – Neoadjuvant Chemotherapy:     – may facilitate limb salvage surgery by causing significant necrosis of the primary tumor;     – protocol:            – cis platin: 2 intra-arterial cycles are given at a dose … Read more

Chemistry Panel

   Hypo Na                 Hypernatremia    Hypo K                   Hyperkalemia    Hypo Cl                   Hyper Cl    Decr HCO3            Incr HCO3    Hypo Gly                 Hyperglycemia    Creatinine    BUN    Hypo Ca     … Read more

Chemistry of Skeletal Muscle

– Myosin:     – largest of myofibrillar proteins, and it makes up > 50% of muscle mass;     – it constitutes thick filament of the contractile unit;     – myosin molecule resembles a thin rod with two small, globular heads;     – heads of chains protrude from thick filament;     … Read more

Chemical Burns

– See: Burn Management: – Discussion:     – treatment: copious saline irrigation;     – hydrofluoric acid          – severe pain          – note that this chemical may be found in hydraulic oil;          – treatment subcutaneous 10% calcium gluconate     – white phosphorous … Read more