Data Trace Editor – Discussion – see: Bone Tumor Menu – Types of Metastatic Carcinoma: – breast cancer – renal cell ca – prostatic cancer – lung carcinoma – thyroid cancer: – may cause heavy bleeding if disturbed (consider need for embolization prior to biopsy … Read more
– Discussion: – for bronchial Asthma, emphysema, bronchitis; – Adult: Inhalation: – Nebulizer: 0.2-0.3ml in 2-5ml of NS q4-6hr prn for bronchospasm; – Metered dose inhaler: 1-3 inhalations q3-4 hr, – Max Dose of 12 per 24 hr & 2 min between inhalations; – Oral Dosing: – 20mg PO q6-8 hr; – Peds: – Nebulization: … 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
– See: – Epiphyseal Artery – Nutrient Artery – Periosteal Artery – Discussion: – metaphyseal portion of long bone contains numerous small channels; – through these channels pass vessels that enter marrow cavity to anastomose w/ vessels derived from nutrient artery; … 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
– Advantages: – larger heads helps avoid dislocation: – avoidance of screws – larger heads allows greater ROM – Disadvantages: – metallosis – contraindictated in renal insufficiency; – Levels: – normal cobalt: – mean serum cobalt level of 0.24 µg/L (range: 0.08 to 0.50 µg/L) – highest safe level: … Read more
– See: Characteristics of Metals and Implants: – Fratigue Fracture: – frx or break or a metal caused by repetitive applications of loads in between the fatigue limit and the Yield Strength; – Fatigue Limit: – load that a metal can endure indefinitely without bending or breaking when subjected to cyclic bending; … Read more
– Discussion: – displacement of metacarpal shaft fractures is prevented by intermetacarpal ligaments and intrinsic muscles; – the border metacarpals (thumb, index, and little) are not supported as well as the ring and long metacarpals and are therefore more likely to displace; – effect of shortening: … Read more
– See: metacarpal frx menu – Discussion: – frxs through neck & shaft of metacarpals usually angulate w/ apex dorsal, displacing the metacarpal head into the palm; – ring and little neck frx: (see boxer’s frx); – corresponding CMC joints are mobile (in contrast to 1st & 2nd CMC) w/ flexion extension arc of between … Read more
– carpometacarpal fracture dislocation – dislocation of MP joint: – complex dislocations of the MP joint – simple dislocations of the MP joint – thumb MP joint dislocation – metacarpal head frx – metacarpal neck fracture – metacarpal shaft fractures – MP joint locking – rheumatoid arthritis: MP joint – MP joint arthroplasty – MP … Read more