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All of the following intra-operative techniques may result in lengthening of the operative leg during total hip arthroplasty EXCEPT:
Increasing the femoral neck offset
Increasing the femoral neck length
Incomplete insertion of a cemented femoral stem
Making a high femoral neck cut just below the femoral head
Bone grafting superior to the acetabulum to seat the cup more inferior
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The preoperative pelvic radiograph of a 63-year-old female with osteoarthritis is shown in Figure A. She undergoes an uncomplicated total hip replacement. Six weeks post-operatively she complains that her right leg is longer than her left, and an AP pelvic radiograph is obtained which is shown in Figure B. Physical exam shows normal post-operative range of motion and strength in both hips. What is the most likely etiology for this patients gait impairment?
Hip flexion contracture
Excessive medialization of the acetabular component
Patient's perceived leg length discrepancy
Hip adduction contracture
Malpositioning of the femoral component
All of the following interventions help restore anatomic limb length following total hip arthroplasty EXCEPT:
Use of an arthroplasty system incorporating variable neck lengths
Intraoperative assessment of limb length
Use of a modular arthroplasty system that allows variable femoral offset
Clinical and radiographic preoperative assessment for limb length discrepancy