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A biomechanical comparison of 3 reconstruction techniques for posterolateral instability of the knee in a cadaveric model

Authors
 Sung-Jae Kim  ;  Hyoung-Sik Kim  ;  Hong-Kyo Moon  ;  Woo-Hyuk Chang  ;  Sul-Gee Kim  ;  Yong-Min Chun 
Citation
 ARTHROSCOPY-THE JOURNAL OF ARTHROSCOPIC AND RELATED SURGERY, Vol.26(3) : 335-341, 2010 
Journal Title
 ARTHROSCOPY-THE JOURNAL OF ARTHROSCOPIC AND RELATED SURGERY 
ISSN
 0749-8063 
Issue Date
2010
MeSH
Aged ; Aged, 80 and over ; Biomechanical Phenomena ; Cadaver ; Collateral Ligaments/physiopathology ; Collateral Ligaments/surgery* ; Equipment Design ; Humans ; Joint Instability/physiopathology ; Joint Instability/surgery* ; Knee Joint/physiopathology ; Knee Joint/surgery* ; Reconstructive Surgical Procedures/methods* ; Rotation ; Tendons/physiopathology ; Tendons/surgery* ; Torque
Abstract
PURPOSE: The objective of this study was to compare the varus and external rotatory laxity of reconstructed knees by use of 3 different reconstruction techniques that address posterolateral instability of the knee: popliteus tendon (PT) and lateral collateral ligament (LCL) reconstruction, PT and popliteofibular ligament (PFL) reconstruction, and PFL and LCL reconstruction. METHODS: We divided 36 fresh-frozen cadaveric knees into 3 groups of 12, and each group was assigned to a reconstruction technique: PT-LCL reconstruction with the posterior tibialis tendon, PT-PFL reconstruction with the patellar tendon and bone (Warren technique), and PFL-LCL reconstruction with the semitendinosus tendon (Larson technique). Each specimen was fixed with an Ilizarov external fixator and mounted on a custom-designed apparatus that was made to measure posterolateral instability of the knee, that is, external rotatory and varus laxity in the intact state, after cutting, and in the postoperative state at every 30 degrees from 0 degrees to 90 degrees . RESULTS: There were no significant differences between the 3 techniques with external rotation and varus laxity in all specimens. CONCLUSIONS: PT-LCL reconstruction was comparable to the other 2 established techniques: PT-PFL reconstruction (Warren technique) and PFL-LCL reconstruction (Larson technique). However, the original strength of the native knee could not be achieved with any of the techniques. CLINICAL RELEVANCE: All techniques restored the posterolateral stability of the knee to near normal, with none of them being superior
Full Text
http://www.sciencedirect.com/science/article/pii/S0749806309007324
DOI
10.1016/j.arthro.2009.08.010
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Orthopedic Surgery (정형외과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Sung Jae(김성재)
Kim, Sul Ki(김슬기)
Kim, Hyoung Sik(김형식) ORCID logo https://orcid.org/0000-0002-9303-4116
Moon, Hong Kyo(문홍교)
Chang, Woo Hyuk(장우혁)
Chun, Yong Min(천용민) ORCID logo https://orcid.org/0000-0002-8147-6136
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/100761
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