Ortho Oracle - orthopaedic operative atlas

Diflunisal/Dolobid

– NSAIA;  – for musculoskeletal pain and osteoarthritis;  – adult dose: 500 mg every 8 to 12 hours (500-1500 mg/day PO divided doses);  – ? may increase PT;  – w/ impaired renal or hepatic function, cut dose in half;  – Tabs: 250, 500 mg

Differential Diagnosis: of Limb Length Deformity

  – Avascular Necrosis  – Congenital angulation shortening   – Congenital coxa vara  – Congenital short femur   – DDH  – Diaphyseal fractures   – Hemiatrophy  – Hemiparetic cerebral palsy  – Hemiatrophy (anisomelia)  – Hemihypertrophy:  – Hemangioma  – Neurofibromatosis  – Lipomatosis   – Lymphangioma  – Infantile septic arthritis of the hip  – Juvenile Rheumatoid Arthritis:  – Legg-Perthes disease  – … Read more

Differential Diagnosis of Metabolic Bone Diseases

– See: Transient Osteoporosis:   Disorder      Serum Ca    Serum Phos    Serum AP    Urine Osteoporosis    Normal      Normal        Normal      Normal Ca Osteomalacia      ”           ”              ”        Low    Ca … Read more

Differential Diagnosis of Neuropathic Ulceration

– Differential Diagnosis:     – vascular lesions:          – location of ulcerations/lesions may be helpful in determining etiology of the lesions;          – gangrene secondary to ischemia/arterial insufficiency will usually start at the most distal part of the extremity;          – neuropathic lesions tend to … Read more

Differential Diagnosis of Rheumatoid Arthritis

– Diff Dx:     – SLE     – Psoriatic Arthritis     – Ankylosing Spondylitis     – Mixed Connenctive Tissue Diseases     – Reiter’s Syndrome     – Polymyalgia     – Sjogren’s syndrome     – Crystal deposition disease     – Septic Arthritis     – Tuberculous Arthritis (“monoarticular … Read more

Diff Dx of V Tach

SVT vs VT Ischemia: MI/Angina Hypoxia Hypovolemia Valvular Heart Dz: Mitral Stenosis: Acidemia Cardiomyopathy, CHF Ventricular Aneurysm Electrolytes (HypoK, HypoMg, HypoCa) Meds: Digoxin Quinidine Procainamide Disopyramide Amiodarone Phenothiazine Tricyclics – each of these drugs will prolong QT interval, and may produce a type of V.Tach (Torades de Pointes)