Laboratory Studies
In determining the appropriateness of a femoral osteotomy, the appropriate tests and imaging techniques should be performed.
- Obtain a white blood cell count, erythrocyte sedimentation rate, and C-reactive protein level if infection is suspected.
- If osteonecrosis is present, then an investigation of the etiology may be indicated.
- Routine preoperative blood work is indicated.
Imaging Studies
- Radiography
- Standing anteroposterior pelvis radiographs to measure neck-shaft angle and assess the hip joint integrity
- Cross-table lateral of the involved hip to assess sagittal deformity
- Standing bipedal 51-inch radiograph including the top iliac crests to below ankle joints to assess deformity and leg length
- Bone scanning
- To assess for nonunion
- To assess for infection
- CT scanning (helpful in some instances): Hip CT scanning can help confirm the presence of a nonunion.
- MRI: This can help assess for osteomyelitis and can evaluate the condition of the hip joint.
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