Ortho Oracle - orthopaedic operative atlas

Scaphoid Nonunion

    – See: Avascular Necrosis of the Scaphoid – Discussion: – often result from undiagnosed or undertreated non displaced scaphoid fractures, especially when associated w/ carpal instability; – even when found as late as 6 mo after the injury, frx of scaphoid, esp at the waist and distal location, may go on to heal; … Read more

Sarmiento Osteotomy for Intertrochanteric Frx

– Discussion:     – involves creating an oblique osteotomy of the distal fragment (valgus osteotomy) to obtain stability in unstable intertroch frx;     – this osteotomy changes frx plane from verticle to near horizontal & creates contact between the medial and posterior cortex of proximal and distal fragments;           … Read more

Salter Osteotomy

– Discussion:     – type of open wedge innominate osteotomy which extends and retroverts acetabulum around fixed axis;     – osteotomy redirects entire acetabulum so that its roof covers femoral head both anteriorly and superiorly;             – extends and retroverts acetabulum around fixed axis;     – in … Read more

Salter Harris: Type IV

– Discussion:      – may occur at any age      – rare in the hand      – type IV frx potentially interfere with normal growth;      – frx line crosses physis, separating a portion of metaphysis-physis-epiphysis from the remaining metaphysis-physis-ephiphysis;      – if frx is displaced, ORIF is indicated;     … Read more

Sacroiliac Fracture – Dislocations

– See:        – Posterior Pelvic Injuries         – Sacral Fractures        – cresent fracture: (iliac fracture)  – Fixation Techniques:     – SI joint dislocation: posterior screw fixation:           – Kellum et al 1987, unstable SI joint dislocations can produce long term pain in 60% that are treated non operatively  … Read more

Sacral Stress Fractures

– Discussion:     – insufficiency frxs of sacrum and pelvis may be confused w/ metastatic lesions, especially if bony resorption occurs at frx ends;     – these injuries may also occur in patients with known malignant disease who have a sudden onset of pain in the lower back, hip, or groin;     … Read more

Rupture of the Quadriceps

– See: Extensor Mechanism Injuries of the Knee:   – Discussion:     – rupture of quadriceps tendons is most common in the 6th & 7th decades, and is probably associated w/decreased  vasculature;     – Male:female  8:1     – more common w/ cortisone injections, diabetes, chronic renal failure; hyperthyroidism, and gout;     – … Read more