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JOURNAL ARTICLE

An intraoperative device to restore femoral offset in total hip arthroplasty

Enxing Xue, Zhen Su, Chengwang Chen, Paul Kim Chiu Wong, Hong Wen, Yu Zhang
Journal of Orthopaedic Surgery and Research 2014, 9: 58
25037492

BACKGROUND: Leg length discrepancy (LLD) after total hip arthroplasty (THA) can lead to unsatisfactory outcome. Our objective was to design and evaluate a simple and reliable intraoperative device (Length-offset Lever) to minimize leg length discrepancy.

METHODS: This device was used in 51 patients undergoing primary total hip replacements. The leg length discrepancy was measured pre- and postoperatively based on plain radiographs.

RESULTS: Preoperative radiographic leg length discrepancy averaged 13.5 ± 6.2 mm. Leg length discrepancy showed significant improvement, with a postoperative average of 4.1 ± 2.3 mm (p < 0.0001). There were no complications associated with this device.

CONCLUSIONS: The 'Length-offset Lever' is a useful intraoperative tool to restore anatomic femoral offset and height of femoral head.

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