Ortho Oracle - orthopaedic operative atlas

Retrograde Screw Insertion

– Discussion:     – note that the main pitfall of this procedure is getting the pin incarcerated within the lateral clavicle;            – if the pin does become incarcerated, then attempts to extricate it may result in hardware failure;     – the intramedullary canal of the lateral fragment is … Read more

Retrograde Nailing of Femoral Shaft Fracture

– Discussion: – may be indicated for: – combined fractures of the femoral neck and shaft and for distal femoral fractures; – multi-trauma patient (procedure can be performed in supine position on regular flouro table); – obese patients (starting hole is not a problem); – advantages: – avoids damage to the blood supply to the … Read more

Reverse Pivot Shift Test

– Discussion:     – this sign is positive in pts with acute or chronic posterolateral instability of the knee;     – knee begins in flexion while an external rotation and valgus stress are applied;            – supine            – valgus stress         … Read more

Reverse Dorsal Metacarpal Flap

– Discussion:     – dorsal metacarpal vessels contribute to the fascial plexus, which supplies the skin of the dorsum of the hand;     – reverse dorsal metacarpal flap, based on the dorsal metacarpal arteries, can cover small soft-tissue defects in the hand;     – axis of this flap parallels dorsal interosseous muscles; … Read more

Retrograde Medullary Superior Ramus Screw

– Discussion:     – indicated for disruption of anterior pelvic ring frx: (APC II)when conditions for open forms of fixation are not optimal;     – serve as an alternative to standard plating techniques for pubic ramus fixation;     – in the case of pubic ramus frx in addition to symphysis dislocation, the retrograde screw is … Read more

Reverse Hill Sach Lesion

– Discussion:     – defect in anteromedial portion resulting from posterior shoulder dislocation;     – management of this injury is determined by both the size of impression defect & time locked posterior dislocation has been present; – Non Operative Treatment:     – if < 20% of joint surface is involved, joint usually … Read more

IRB Reponse:

div class=”mh-row clearfix”> h1>/h1> div class=”bodycopy”>p>strong>Literature Examples that Underscore the Scientific Merit of Autologous Hamstring Resurfacing Arthroplasty research study.br/> br/> /strong>There are three peer reviewed research studies that highlight the need for a autologous hamstring resurfacing arthroplasty research study.br/> The first study is by Kai Mithoefer et al (JBJS 2005;87:1911-1920).  This was a landmark research … Read more

Reticulocyte Count

– Corrected = Reported Count x pt’s Hct / nl Hct; <1.5%;  – Increase: Anemia  – Decrease (in Anemic pt):  – Chronic dz, Deficiency dz, Marrow Replacement, or Marrow Failure

Rest Activity

– See: EMG Menu: – Discussion:     – normally there is no activity at resting muscle;     – denervated muscle fibers become spontaneously active, producing fibrillation potentials & positive sharp waves approx 10-20 days after             nerve injury;     – this test assists in differentiating neuropathic muscle atrophy from myopathic atrophy