Ortho Oracle - orthopaedic operative atlas

Washout and Debridement: for Acutely Infected TKR

– See: TKR Infection Menu – debridement w/o component removal:     – see debridement and washout of infected THR     – IV antibiotic therapy has limited success in treatment of infected TKR; managed with wound debridement, polyethyene exchange,              application of temporary antibiotic beads, and IV antibiotics;     – acute hematogenous infection:              – early acute hematogenous infection … Read more

Debridement of Chondral Defects of the Knee

– Discussion: (see osteochondral injury) – these injuries are distinct from degenerative arthritic lesions and management of these lesions should remain distinct as well; – theory is that penetration of subchondral bone causes bleeding from underlying vessels which allows clot formation in the cartilaginous defect and subsequent formation of fibrocartilage; – some argue that subchondral drilling … Read more

Cefamandole/Mandol

– Second Generation Ceph – Semisynthetic broad spectrum cephalosporin – Gen II. – Adult:500mg-1gm IV/IM q4-6hr to max dose of 12gm/day (2gm q4hr); – usual dose is 1gm q6hr; – Peds: 50-100 mg/kg/day q6hr; – Good diffusion from blood into CSF only with inflammation;    Ratio of CSF to Blood Level (%): Normal Meninges: nil; … Read more

Casting for Club Foot

Discussion pathoanatomy whole foot is in extreme supination, however, the fore part of the foot is pronated with respect to the hindfoot, as a result of the cavus deformity (the first metatarsal is more plantar flexed than the fifth metatarsal); navicular and the cuboid are rotated medially in relation to the talus, and are held in … Read more

Cast Treatment of Tibial Fractures

– Indication for Closed Treatment:    – indications — These are based on “personality” of the fracture as described by Nicoll EA (1964)           –  he listed factors favoring union:           – displacement: if the fracture fragments on are or can be opposed to 25% in a transverse fracture, casting or bracing is permissible             – more than 50% initial frx … Read more

Cartilage Topics

Articular Cartilage Chondrocyte Chondroitin and Keratan Sulfate Chondral and Osteochondral Injuries of the Knee Chondromalacia Development of Bone from a Cartilage Model Epiphyseal Artery Epiphyseal Plate Fibrocartilage Friction and Lubrication of Joint Growth Glycosaminoglycans Biologic Joint Reconstruction – Alternatives to Arthroplasty CARTILAGE AND BONE BIOCHEMISTRY AND PHYSIOLOGY

Cad Cam Socket

– Discussion:     – AKA – NSNA, Cat-Cam, with a narrower medial – lateral designs will share load w/ gluteal structures & greater trochanteric;           – ischium and the ramus are contained within the socket of these newer, more anatomic, and more functional designs;     – narrow medial-lateral above knee … Read more

Bupivacaine / Marcaine

– Dose:     – maximum single doses should not > 150-175 mg w/o Epi; – Local Anesthesia:     – 5 ml to the maximal recommended dose (25 milligrams to maximal dosage) w/ 0.5% solution, which produces moderate to complete motor blockade; – Arthroscopic surgery:     – 30 mL of 0.75% bupivacaine was injected … Read more