Effect of Lower Limb Alignment in Medial Meniscus–Deficient Knees on Tibiofemoral Contact Pressure

Abstract:
Background: Degenerative medial meniscal tears and subsequent partial meniscal resection compromise meniscal function and lead to an overload of the medial compartment. In addition, lower limb alignment plays a key role in load distribution between the medial and lateral knee compartments, and varus alignment is a potential risk factor for medial osteoarthritis. Purpose/Hypothesis: The purpose of this biomechanical study was to investigate the effect of valgus and varus alignment on peak pressure and contact area in knees with concomitant horizontal medial meniscal tears and subsequent leaflet resection. It was hypothesized that varus alignment in combination with meniscal loss leads to the highest peak pressure within the medial compartment. Study Design: Controlled laboratory study. Methods: Six fresh-frozen human cadaveric knees were axially loaded using a 1000-N compressive load in full extension with the mechanical axis rotated to intersect the tibial plateau at 40%, 45%, 50%, 55%, and 60% of its width (TPW) to simulate varus and valgus alignment. Tibiofemoral peak contact pressure and contact area of the medial and lateral compartments were determined using pressure-sensitive foils in each of 4 different meniscal conditions: intact, 15-mm horizontal tear of the posterior horn, inferior leaflet resection, and resection of both leaflets. Results: The effect of alignment on peak pressure (normalized to the neutral axis) within the medial compartment in cases of an intact meniscus was measured as follows: varus shift resulted in a mean increase in peak pressure of 18.5% at 45% of the TPW and 37.4% at 40% of the TPW, whereas valgus shift led to a mean decrease in peak pressure of 8.7% at 55% of the TPW and 23.1% at 60% of the TPW. Peak pressure changes between the intact meniscus and resection within the medial compartment was less in valgus-aligned knees (0.21 MPa at 60% TPW, 0.59 MPa at 50% TPW, and 0.76 MPa at 40% TPW). Contact area was significantly reduced after partial meniscal resection in the neutral axis (intact, 553.5 ± 87.6 mm2; resection of both leaflets, 323.3 ± 84.2 mm2; P < .001). This finding was consistent in any alignment. Conclusion: Both partial medial meniscal resection and varus alignment led to an increase in medial compartment peak pressure. Valgus alignment prevented medial overloading by decreasing contact pressure even after partial meniscal resection. A horizontal meniscal tear did not influence peak pressure and contact area even in varus alignment. Clinical Relevance: As a clinical consequence, partial meniscal resection should be avoided to maintain the original biomechanical behavior, and the mechanical axis should be taken into account if partial meniscectomy is necessary.
Author Listing: Lukas Willinger;Peter Foehr;Andrea Achtnich;Philipp Forkel;Andreas Voss;Franz Liska;Lucca Lacheta;Andreas B. Imhoff;Rainer Burgkart
Volume: 7
Pages: None
DOI: 10.1177/2325967118824611
Language: English
Journal: Orthopaedic Journal of Sports Medicine

Orthopaedic Journal of Sports Medicine

ORTHOP J SPORTS MED

影响因子:2.4 是否综述期刊:否 是否OA:是 是否预警:不在预警名单内 发行时间:- ISSN:2325-9671 发刊频率:- 收录数据库:SCIE/Scopus收录/DOAJ开放期刊 出版国家/地区:United States 出版社:SAGE

期刊介绍

The Orthopaedic Journal of Sports Medicine (OJSM), developed by the American Orthopaedic Society for Sports Medicine (AOSSM), is a global, peer-reviewed, open access journal that combines the interests of researchers and clinical practitioners across orthopaedic sports medicine, arthroscopy, and knee arthroplasty. Topics include original research in the areas of:-Orthopaedic Sports Medicine, including surgical and nonsurgical treatment of orthopaedic sports injuries-Arthroscopic Surgery (Shoulder/Elbow/Wrist/Hip/Knee/Ankle/Foot)-Relevant translational research-Sports traumatology/epidemiology-Knee and shoulder arthroplastyThe OJSM also publishes relevant systematic reviews and meta-analyses. This journal is a member of the Committee on Publication Ethics (COPE).

《骨科运动医学杂志》(OJSM)由美国骨科运动医学学会(AOSSM)开发,是一本全球性、同行评审、开放获取的期刊,结合了骨科运动医学、关节镜检查和膝关节置换术研究人员和临床从业者的兴趣。主题包括以下领域的原创研究:-骨科运动医学,包括骨科运动损伤的手术和非手术治疗-关节镜手术(肩/肘/腕/髋/膝/踝/足)-相关转化研究-运动创伤学/流行病学-膝关节和肩关节成形术OJSM还发表相关系统综述和荟萃分析。该杂志是出版伦理委员会(科普)的成员。

年发文量 423
国人发稿量 39
国人发文占比 9.22%
自引率 8.3%
平均录取率 -
平均审稿周期 12 Weeks
版面费 -
偏重研究方向 Medicine-Orthopedics and Sports Medicine
期刊官网 https://journals.sagepub.com/home/ojs
投稿链接 https://us.sagepub.com/en-us/nam/journal/orthopaedic-journal-sports-medicine#submission-guidelines

质量指标占比

研究类文章占比 OA被引用占比 撤稿占比 出版后修正文章占比
87.47% 91.23% - -

相关指数

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期刊预警不是论文评价,更不是否定预警期刊发表的每项成果。《国际期刊预警名单(试行)》旨在提醒科研人员审慎选择成果发表平台、提示出版机构强化期刊质量管理。

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具体而言,就是通过综合评判期刊载文量、作者国际化程度、拒稿率、论文处理费(APC)、期刊超越指数、自引率、撤稿信息等,找出那些具备风险特征、具有潜在质量问题的学术期刊。最后,依据各刊数据差异,将预警级别分为高、中、低三档,风险指数依次减弱。

《国际期刊预警名单(试行)》确定原则是客观、审慎、开放。期刊分区表团队期待与科研界、学术出版机构一起,夯实科学精神,打造气正风清的学术诚信环境!真诚欢迎各界就预警名单的分析维度、使用方案、值得关切的期刊等提出建议!

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JCR分区 WOS分区等级:Q2区

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WOS期刊SCI分区
WOS期刊SCI分区是指SCI官方(Web of Science)为每个学科内的期刊按照IF数值排 序,将期刊按照四等分的方法划分的Q1-Q4等级,Q1代表质量最高,即常说的1区期刊。
(2021-2022年最新版)
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关于2019年中科院分区升级版(试行)

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分区表升级版(试行)的优势:一是论文层级的主题体系既能体现学科交叉特点,又可以精准揭示期刊载文的多学科性;二是采用“期刊超越指数”替代影响因子指标,解决了影响因子数学性质缺陷对评价结果的干扰。整体而言,分区表升级版(试行)突破了期刊评价中学科体系构建、评价指标选择等瓶颈问题,能够更为全面地揭示学术期刊的影响力,为科研评价“去四唯”提供解决思路。相关研究成果经过国际同行的认可,已经发表在科学计量学领域国际重要期刊。

《2019年中国科学院文献情报中心期刊分区表升级版(试行)》首次将社会科学引文数据库(SSCI)期刊纳入到分区评估中。升级版分区表(试行)设置了包括自然科学和社会科学在内的18个大类学科。基础版和升级版(试行)将过渡共存三年时间,推测在此期间各大高校和科研院所仍可能会以基础版为考核参考标准。 提示:中科院分区官方微信公众号“fenqubiao”仅提供基础版数据查询,暂无升级版数据,请注意区分。

中科院分区 查看说明

版本 大类学科 小类学科 Top期刊 综述期刊
医学
3区
ORTHOPEDICS
骨科
3区
SPORT SCIENCES
运动科学
3区
2021年12月
基础版
医学
3区
ORTHOPEDICS
骨科
3区
SPORT SCIENCES
运动科学
3区
2021年12月
升级版
医学
3区
ORTHOPEDICS
骨科
3区
SPORT SCIENCES
运动科学
3区
2020年12月
旧的升级版
医学
3区
ORTHOPEDICS
骨科
3区
SPORT SCIENCES
运动科学
3区
2022年12月
最新升级版
医学
3区
ORTHOPEDICS
骨科
3区
SPORT SCIENCES
运动科学
3区