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J Orthop Surg Res. 2014 Jul 19;9:58. doi: 10.1186/s13018-014-0058-7.

An intraoperative device to restore femoral offset in total hip arthroplasty.

Author information

1
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. drzhangyu@hotmail.com.

Abstract

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.

PMID:
25037492
PMCID:
PMC4223551
DOI:
10.1186/s13018-014-0058-7
[Indexed for MEDLINE]
Free PMC Article

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