Ortho Oracle - orthopaedic operative atlas

Femoral Neck Frx: Acceptable Reduction Parameters

– See:        – x-rays for femoral neck fractures        – technique of closed reduction – Acceptable Reduction:     – poor reduction of femoral neck frx interferes w/ blood supply to femoral head & decreases apposition of bone between bone fragments;     – reduction should leave neck-shaft angle between … Read more

Femoral Neck Frx: Techniques of Closed Reduction

– See: Accetable Reduction Parameters – Discussion:     – always attempt closed reduction before open reduction;     – evaluation of the lateral x-ray after reduction to evaluate posterior comminution of the femoral neck is critical;     – posterior comminution leads to the loss of a butressing effect posteriorly, w/ subsequent loss of reduction … Read more

Femoral Neck Non-Union

– See: Avascular Necrosis following Femoral Neck Fracture – Discussion:     – usually non unions are apparent w/in one year of femoral neck frx;     – incidence ranges from 10 to 30%;     – only 1/3 of pts w/ AVN will require additional surgery where as     – 3/4 patients with … Read more

TKR: Femoral Component Notching

– see: TKR menu – Discussion:     – notching may occur with the anterior femoral cut;     – classification: 4 grades using the Tayside classification:             – grade I: violation of the outer table of the anterior femoral cortex;             – grade II: violation of the outer and the inner table of the anterior femoral cortex;             – grade … Read more

Femoral Artery

– See:       – Anastomoses of Lower Limb Arteries       – Femoral Arteriogram:       – Lower Limb: anatomy of arteries and bones with 3D pictures and angiographic radiological images – Anatomy:     – common iliac bifurcates at the L5-S1 disc;     – internal iliac:               – courses anterior and adjacent to … Read more

Femoral Component

– See: Total Hip Replacement Menu – Discussion:     – design considerations      – femoral stem collar     – cemented femoral stems (radiology of cemented femoral stems)      – press fit femoral stems      – femoral component offset             – modular neck:                    – … Read more

Femoral Component Design Considerations

– Anatomy:         – anatomy of femur         – neck shaft angle:                 – references:                         – The femoral neck-shaft angle on plain radiographs: a systematic review.                         – The neck shaft angle: CT reference values of 800 adult hips – Press … Read more

Femoral Component Offset:

– Discussion:     – see acetabular component, reestablishment of acetabular floor, and component position;     – see: preoperative and post operative radiographic eval     – femoral offset is measured from the distance between the center of the femoral head and a line drawn down center of femoral shaft;     – note that increasing … Read more