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Open Access 01-12-2017 | Technical advance

Application of intraoperative limb-length measurement by a new osteotomy device in hemiarthroplasty for treating femoral neck fracture

Authors: Zhanle Zheng, Lei Yang, Yanling Su, Xian Yu, Zhiyong Hou, Yingze Zhang

Published in: BMC Surgery | Issue 1/2017

Abstract

Background

Limb length discrepancy is one of the most common complications after hip arthroplasty. We developed a device - intraoperative limb-length measurement and osteotomy device (ILMOD), and applied it to patients who were treated with hemiarthroplasty for femoral neck fracture to improve limb length discrepancy by providing an accurate osteotomy during hemi-arthroplasty.

Methods

Between April 2012 and October 2013, 65 patients were treated with hip hemiarthroplasty for femoral neck fracture at our trauma center. 31 patients met the inclusion criteria and were randomly enrolled into two groups ILMOD group and control group. Hemiarthroplasty in this study was performed with cement fixation. Treatment-related measurements such as the operation time, attempts of osteotomy, and the volume of intra-operative blood loss were collected. In both groups, postoperative (1 month) radiologic analysis on anteroposterior weight-bearing pelvic view was performed to evaluate limb length discrepancy.

Results

The results showed significant improvement in limb length discrepancy in ILMOD group, and analysis of postoperative radiographs found the mean length difference is 2.1 ± 1.9 mm in ILMOD group compared to 8.8 ± 5.1 mm in control group (P < 0.0001). No complications associated with the use of the device were reported, and none of the patients complained of the discomfort related to limb-length discrepancy after surgery. The average intra-operative time was significantly longer in ILMOD group (84.9 ± 9.2 min) compared to that in control group (70.9 ± 10.2 min) (P = 0.0004).

Conclusions

The ILMOD is an effective device that can be used easily for intraoperative limb length measurement and osteotomy during hemiarthroplasty. This method is applicable with Kocher-Langenbeck approach, and the technique could also be used in total hip arthroplasty.

Trial registration

Chinese Clinical Trial Registry ChiCTR-OOC-15005904. Registered 30 Junuary 2015.

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Title: Application of intraoperative limb-length measurement by a new osteotomy device in hemiarthroplasty for treating femoral neck fracture
Authors: Zhanle Zheng
Lei Yang
Yanling Su
Xian Yu
Zhiyong Hou
Yingze Zhang
Publication date: 01-12-2017
Publisher: BioMed Central
Published in: BMC Surgery / Issue 1/2017
Electronic ISSN: 1471-2482
DOI: https://doi.org/10.1186/s12893-017-0256-4

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

Application of intraoperative limb-length measurement by a new osteotomy device in hemiarthroplasty for treating femoral neck fracture

Abstract

Background

Methods

Results

Conclusions

Trial registration

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

Abstract

Background

Methods

Results

Conclusions

Trial registration

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