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学科主题: 临床医学
题名:
The effect of medial meniscal horn injury on knee stability
作者: Chen, Lianxu1,2; Linde-Rosen, Monica1; Hwang, Sun Chul1; Zhou, Jingbin1; Xie, Qiang1; Smolinski, Patrick1,3; Fu, Freddie H.1,3
关键词: Medial meniscal horn ; Internal rotation ; External rotation ; Porcine knee
刊名: KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY
发表日期: 2015
DOI: 10.1007/s00167-014-3241-9
卷: 23, 期:1, 页:126-131
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Orthopedics ; Sport Sciences ; Surgery
研究领域[WOS]: Orthopedics ; Sport Sciences ; Surgery
关键词[WOS]: ANTERIOR CRUCIATE LIGAMENT ; POSTERIOR HORN ; DEFICIENT KNEE ; BIOMECHANICAL ANALYSIS ; LATERAL MENISCECTOMY ; IN-VITRO ; TEAR ; RECONSTRUCTION ; ROOT ; EXTRUSION
英文摘要:

This study investigated the effect of damage of the posterior and anterior horns of the medial meniscus on knee stability.

Twenty fresh-frozen porcine knees were divided into two groups (anterior horn and posterior horn injury). Each group was tested in three states: intact medial meniscus, posterior or anterior horn of medial meniscus resection and total medial meniscectomy. A robotic testing system was used to test anterior tibial translation (ATT) at 30A degrees (full extension), 60A degrees and 90A degrees of knee flexion with an external anterior tibial load of 89 N, internal rotation (IR) and external rotation (ER) at 30A degrees and 60A degrees of knee flexion under a 4 N m tibial rotation torque.

In response to an IR torque, there was a significant difference between the state of intact medial meniscus and anterior and posterior horn damage, except for anterior horn resection at 60A degrees of knee flexion. In response to an ER torque, there were no significant differences between the state of intact meniscus and horn damage except for anterior horn resection at 30A degrees of knee flexion. Meniscal damage had no significant effect on ATT.

The results indicated that the posterior horn was more important in controlling the IR stability than the anterior horn with knee flexion, and the anterior horn was more important in controlling the ER stability than the posterior horn at full knee extension in the anterior cruciate ligament-intact knee. These findings further the understanding of the mechanisms, the prevention of injuries and rehabilitation of meniscal horn injury in clinical practice.

语种: 英语
项目资助者: Albert B. Ferguson, Jr. MD Orthopaedic Fund of The Pittsburgh Foundation ; Smith Nephew
WOS记录号: WOS:000347405200021
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/56115
Appears in Collections:北京大学第三临床医学院_运动医学研究所_期刊论文

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作者单位: 1.Univ Pittsburgh, Dept Orthopaed Surg, Pittsburgh, PA 15260 USA
2.Beijing Univ, Hosp 3, Inst Sports Med, Beijing 100871, Peoples R China
3.Univ Pittsburgh, Dept Mech Engn & Mat Sci, Pittsburgh, PA USA

Recommended Citation:
Chen, Lianxu,Linde-Rosen, Monica,Hwang, Sun Chul,et al. The effect of medial meniscal horn injury on knee stability[J]. KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY,2015,23(1):126-131.
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