An intraoperative device to restore femoral offset in total hip arthroplasty

Journal of Orthopaedic Surgery and Research

Yu Zhang²  Hong Wen²  Paul Kim Chiu Wong³  Chengwang Chen²  Zhen Su¹  Enxing Xue² 

[1] Department of Nephrology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang, China;Department of Orthopaedic Surgery, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou 325000, Zhejiang, China;Department of Surgery, University of Toronto, 650 Sammon Ave. Suite 301, Toronto M4C 5M5, ON, Canada

关键词: Device;    Femoral offset;    Total hip arthroplasty;    Leg length discrepancy;   

Others  :  1152349
DOI  :  10.1186/s13018-014-0058-7

 received in 2013-11-25, accepted in 2014-06-27,  发布年份 2014

【 摘 要 】

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.

【 授权许可】

   
2014 Xue et al.; licensee BioMed Central Ltd.

【 图 表 】

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