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Published in: Knee Surgery, Sports Traumatology, Arthroscopy 4/2013

01-04-2013 | Knee

The influence of the intercondylar notch dimensions on injury of the anterior cruciate ligament: a meta-analysis

Authors: Chao Zeng, Shu-guang Gao, Jie Wei, Tu-bao Yang, Ling Cheng, Wei Luo, Min Tu, Qiang Xie, Zheng Hu, Peng-fei Liu, Hui Li, Tuo Yang, Bin Zhou, Guang-hua Lei

Published in: Knee Surgery, Sports Traumatology, Arthroscopy | Issue 4/2013

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Abstract

Purpose

The aim of this meta-analysis was to examine the effect of the intercondylar notch dimensions, intercondylar notch width index (NWI) and intercondylar notch width (NW), separately in anterior cruciate ligament (ACL) injury.

Methods

The PubMed and Wanfang database were searched through until 1 November 2011 to identify studies that met pre-stated inclusion criteria. Reference lists of retrieved articles were also reviewed. Two authors independently extracted information on the designs of the studies, the characteristics of the study participants, exposure and outcome assessments and control for potential confounding factors. Either a fixed- or a random-effects model was used to calculate the overall weighted mean difference (WMD).

Results

Sixteen studies (n = 4,291) were included (1,222 subjects in ACL-injured group and 3,069 subjects in the control group). Statistically significant differences were observed in the NWI (WMD, −0.02; 95 % confidence interval, −0.04 to −0.01), and in the NW (WMD, −2.15; 95 % confidence interval, −3.09 to −1.21) among the ACL-injured group when compared to the control group.

Conclusion

The meta-analysis findings concluded that narrow intercondylar notch dimensions were associated with the risk of ACL injury. A lower NWI or NW stenosis predisposes an individual to ACL injury. Further original studies should include more anatomical risk factors that could be associated with the risk of ACL injury.

Level of evidence

III.
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Metadata
Title
The influence of the intercondylar notch dimensions on injury of the anterior cruciate ligament: a meta-analysis
Authors
Chao Zeng
Shu-guang Gao
Jie Wei
Tu-bao Yang
Ling Cheng
Wei Luo
Min Tu
Qiang Xie
Zheng Hu
Peng-fei Liu
Hui Li
Tuo Yang
Bin Zhou
Guang-hua Lei
Publication date
01-04-2013
Publisher
Springer-Verlag
Published in
Knee Surgery, Sports Traumatology, Arthroscopy / Issue 4/2013
Print ISSN: 0942-2056
Electronic ISSN: 1433-7347
DOI
https://doi.org/10.1007/s00167-012-2166-4

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