– See: TKR Menu / Supracondylar Femur Frx – Discussion: – known risk factors include notching of the femur, osteoporosis, and excessive polyethylene wear (w/ subsequent osteolytic defect) – other risk factors include osteonecrosis of the femur; – ref: Morphologic analysis of periprosthetic fractures after hip resurfacing arthroplasty. – Radiographs: – often oblique radiographs are needs … Read more
– Discussion: – general discussion of non union / infected femoral nails – femoral shaft that has not healed in 26 wks signals a delayed union; – may be more common in segmental fractures and in winquest type IV fractures; – most common iatrogenic risk factor is failure to … Read more
– See: adult femoral and acetabular anteversion – Discussion: – femoral version is defined as the angular difference between axis of femoral neck and transcondylar axis of the knee; – excessive femoral anteversion (medial femoral torsion) is most common cause of in-toeing that first presents in early childhood; – … Read more
– Discussion: – femoral version is defined as the angular difference between axis of femoral neck and the transcondylar axis of the knee; – excessive femoral anteversion (medial femoral torsion) is most common cause of in-toeing that first presents in early childhood; – it is twice as common in girls as … Read more
– Discussion and Indications: – definitive stabilization of frx may be achieved w/ external fixation in certain rotationally unstable but vertically stable injuries; – relative contraindication is iliac wing fractures; – antero-posterior compression injuries: – external fixation is most applicable to stable “open book” … Read more
– Mid-Shaft Humeral Fractures: – consider screw placement in the short frx segment first, since the longer fragment will be more forgiving for shorter or longer screw placement; – take care to avoid injury to axillary nerve proximally and the radial nerve distally; – proximal pin … Read more
– Discussion: – extension type accounts for 95% of cases, & is caused by a fall on outstretched hand with hyperextension of the elbow; – anterior periosteum is torn; – there may be a significant amount of local bleeding and swelling; – nerves & blood vessels are contused, compressed, … Read more
– See: Forearm Extensors : – Anatomy: – origin: lateral condyle of humerus; – insertion: – this tendon inserts into the base of 3rd metacarpal and is in direct relationship with the ECRL, which inserts into the base of the 3rd metacarpal; … Read more
– See: Forearm Extensors: – Anatomy: – origin: lower 1/3 of lateral epicondyle & supracondylar ridge; – insertion: posterior surface of base of second metacarpal; – action: extends and abducts the hand at the wrist; – synergists: ECRB, ECU; – nerve supply: radial, … Read more
– See: – Anterior Approach to Radial Shaft: – @<c:ovvuimgp -s c:osdiagfor.1[Diagram – Plating Techniques: – Discussion: – incision begins distal to flexor crease of elbow & extends distally for approx 15 cm along the anterior border of brachioradialis; … Read more