– See: – Osteomyelitis in New Born – Septic Hip – Bacteriology: – in hospital-acquired cases, staphylococci are the predominant isolates (about 60%), followed by Group B streptococcus, candida & gram-negative bacilli; – these infections often stem from invasive procedures such as … Read more
– Discussion: – is bactericidal antibiotic active only against Gm Pos organisms and a few gm neg organisms such as GC and Meningococci; – commonly used topically and is effective PO in Rx of C.difficile colitis; – apply ointment to area one or more times daily; – … Read more
– Indications: – most often used for anterior shoulder reconstructions – Positioning: – beach chair w/ full access to posterior aspect of shoulder; – holding shoulder in flexion, will relax shoulder & facilitate exposure; – consider the Mconnel Shoulder Positioner; – references: … Read more
– Discuussion: – axillary nerve (C5, C6) originates from and passes backward from posterior cord of brachial plexus – at level of axilla; – it arises immediately posterior to the coracoid process and conjoined tendon; – it crosses the inferolateral surface of the subscapularis, 3-5 mm medial to the musculotendinous border; – sweeping a finger … Read more
– Discussion: (See: Blood Supply to Femoral Head) – there are certain areas of bone in which vascular supply is precarious; – these areas are subject to infarction and avascular necrosis; – three such regions are head of femur, body of talus, & scaphoid; – they have the … Read more
Discussion: – pathogenesis – vascular interruption: – blood supply to femoral head – specific inciting causes – natural history – diff dx: – synovitis; – Idiopathic Transient Osteoporosis of the Hip – femoral neck stress frx – metastatic disease – trochanteric bursitis: – ref: Avascular necrosis of the femoral head presenting as trochanteric bursitis. – … Read more
– See: – Avascular Necrosis of Femoral Head – IM Nailing of Pediatric Femur Fractures – Discussion: – AVN may not appear for one year or more after IM Nailing of the femoral shaft; – more common in young adolescents undergoing IM nailing of femoral shaft frx, … Read more
– See: – Avascular Necrosis of Femoral Head: – Blood Supply to Femoral Head & Neck: – Non-Union following Femoral Neck Frx; – Discussion: – when femoral neck frx occurs, intraosseous cervical vessels are disrupted; – incidence of AVN in undisplaced fractures is 11%; … Read more
– See: – Frx Dislocations of the Hip – Avascular Necrosis of the Femoral Head – Discussion: – overall incidence between 5-40%; – if reduction is performed w/in 6 hours, incidence of AVN will be less than 10%; – in the study by McKee, et … Read more
– See: AVN in Adults – Discussion: – results from forced attempts at reduction and subsequent disruption of the blood supply to the growing femoral head; – is reported to occur in 6-30% of patients undergoing closed reduction, but in some series the incidence can be as high … Read more