Ortho Oracle - orthopaedic operative atlas

Indications

– Discussion:     – common reasons for revision include sepsis, component malposition, impingement, polyethylene wear, pelvic osteolysis, recurrent               dislocation, progressive protrusio, and component loosening;     – most common indication for revision THR is loosening of the prosthesis with subsequent pain and varying degrees of bone loss;     – these are major procedures, … Read more

Indications for External Fixation in Pelvic Frx

– Indications:     – definitive stabilization of frx may be achieved w/ external fixation in certain rotationally unstable but vertically stable injuries;     – open book frx:            – external fixation is most applicable to stable “open book” pelvic fractures in which there is intact posterior tension band (APC II & … Read more

IM Nailing of Proximal Tibial Fractures

 – See: IM Nailing of Tibia Fractures – Discussion:     – IM naling of these fractures is technically difficult and often results in malalignment;            – other options include: external fixation for open fractures;             – Intramedullary nailing versus percutaneous locked plating of extra-articular proximal tibial fractures: comparison of 56 … Read more

IM Nailing for Subtrochanteric Frx

– Discussion:       – IM nailing of Intertrochanteric fractures      – Synthes Trauma Menu / Proximal Femoral Products      – nails designed for trochanteric entry and rigid fixation into the femoral head are optimally used;      – indications:             – interlocking nails have been used for subtroch frx when lesser trochanter remains attached to the proximal … Read more

Ilioinguinal Approach to the Acetabulum

– See: Watson Jones Approach – Discussion:     – frx of anterior column & some anterior column-posterior hemitransverse frx are approached using ilioinguinal approach;     – ilioinguinal approach can give simultaneous access to both anterior & posterior portions of the pelvic ring;            – medial portion of this approach … Read more

Idiopathic Transient Osteoporosis of the Hip

– See: Musculoskeletal Considerations in Pregancy – Discussion:     – uncommon disease which is a diagnosis of exclusion;     – most often seen in women during the third trimester of pregnancy and in middle-aged men;     – typically there is no antecendent trauma;     – up to 40% of patients may … Read more

Iliac Wing: Fractures

– See: Sacro-Iliac Fracture Dislocations – Management:     – consider  direct frx fixation from iliac crest into sacrum;     – under x-ray control, long, 6.5-mm cannulated lag screws transfix the frx from iliac wing to body of S-1;     – because of risk to neural structures, K guide wire usually is inserted, and its … Read more

Iliacus

Origin: superior 2/3 of the iliac fossa, internal border iliac crest, anterior sacroiliac, lumbosacral and iliolumbar ligaments, ala sacrum; Insertion: Lesser trochanter of femur and for a short distance below along medial border of the shaft; Action: Flexes thigh at the hip, minimal activity on lateral rotation of the thigh; Reversed origin-insertion action: when the … Read more