Ortho Oracle - orthopaedic operative atlas

Collagen Biosynthesis

Discussion biosynthesis of collagen is initiated w/ osteoblasts; these intracellular events involve protein synthesis on endoplasmic reticulum to form 3 polypeptide chains, which make up protocollagen; protocollagen is hydroxylated to form procollagen, which is glyco-sylated at the endoplasmic reticulum; degree of hydroxylation of the lysine residue is important in that it will determine the number … Read more

Coleman Block Test

– See: cavovarus deformity – Discussion:     – coleman block test evaluates hindfoot flexibility and pronation of forefoot;     – initial deformity is in the forefoot followed by subsequent changes in the hindfoot;     – test is performed by placing the patient’s foot on wood block, 2.5 to 4 cm thick, with … Read more

Colestipol/Colestid

– for reduction of serum cholesterol levels with primary hypercholesterolemia;  – binds bile salts;  – Adults:15-30gm/day divided into 2-4 doses; (need to mixed with beverages)

Collagen Disorders

– Discussion:     – the biosynthesis of collagen involves many complex processes that are subject to biologic control;     – these processes can be disrupted at any point by metabolic disorders such as:           – scurvy;           – lathyrism;     – genetic collagen diseases: … Read more

Collar Button Abscess

– See: Infections of the Hand – Discussion:     – type of web space infection, which involves both palmar and dorsal sides;     – frequently arises from a distal palmar callus, but spreads to the dorsal side;     – spread of infection is limited by palmarly by the adherence of the palmar … Read more

CNS Medication List

    Analgesic     Anti-Anxiety     Anti-Convulsant     Anti-Depressant     Tricyclics     Antiemetics     Anti-Histamines     Anti-Parkinson     Sedatives/Hypnotics     Antitussives     Anti-Pyschotics     Opiods – Discussion:     – tricyclic antidepressants may inhibit the metabolism of neuroleptic agents, just as neuroleptics may inhibit metabolism … Read more

Coagulation Labs

Coagulation Labs – Labs: PT/PTT/BT Thrombin Time FDP/Fibrinogen – See: – Bld Prod Menu – Fresh Frozen Plasma – Platlets – Coag Pathway – Hypercoagulable states – Vit K – DDAVP

Colchicine

– Discussion: (see GoutPal.com) – colchicine is used to treat acute gout; – mechanism of action involves inhibition of MSU-induced chemotactic factor release by PMNs; – in addition to treatment of acute gout, prophylactic administration of low doses of colchicine is effective in reducing the frequency of multiple attacks; – disadvantages: its onset of action … Read more

Cobalt Based Alloys

– See: Characteristics of Metals and Implants: – Discussion:      – cobalt based alloys are highly resistant to corrosion and esp to attack by chloride within crevices;      – cobalt based alloys may fail because of Fatigue frx (but less often than stainless steel stems)