The influence of weakness in the vastus medialis oblique muscle on the patellofemoral joint: an in vitro biomechanical study

Sakai, Naotaka; Luo, Zong Ping; Rand, James A.; An, Kai Nan

doi:10.1016/s0268-0033(99)00089-3

Cited by 162 publications

(165 citation statements)

References 13 publications

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“…For the first time, the present study reports patellar motion with respect to both the femur and tibial reference frames, from a large population size, for a large flexion/extension arc, and according to current international recommendations. The results reported concur with comparable reports from the literature, [9][10][11]15,16,18,34 but are definitely more robust and consistent. All patterns were found to be generally repeatable intra-and interspecimens.…”

Section: D Patellar Motion At the Natural Knee During Passive Flexiosupporting

confidence: 91%

“…10,13 In only four studies 9,10,18,20 the articular convention for the description of PFJ motion was the same as that of the present study; not in a single the patellar anatomical reference frame definition was the same as that of the present study. In addition, in these studies results were reported respectively from seven, one, eight, and four knee specimens, by magnetic sensors with 0.58 and 1.0 mm accuracy, and in a 0-908 TFJ flexion range only.…”

Section: D Patellar Motion At the Natural Knee During Passive Flexiomentioning

confidence: 80%

“…A number of studies, both in vitro [9][10][11][12][15][16][17][18][19][20] and in vivo, [21][22][23][24][25][26][27][28] have dealt with the identification of normal patellar motion, but differences in the accuracy of the measurement system used, range of knee motion examined, magnitude and direction of the load applied, and articular and anatomical conventions, hinder a thorough comparison of the results. 10,13 In only four studies 9,10,18,20 the articular convention for the description of PFJ motion was the same as that of the present study; not in a single the patellar anatomical reference frame definition was the same as that of the present study.…”

Section: D Patellar Motion At the Natural Knee During Passive Flexiomentioning

confidence: 99%

“…7 These can lead to anterior knee pain and failure of the arthroplasty. [7][8][9] An accurate quantitative reference for normal PFJ kinematics is therefore necessary to identify maltracking. [10][11][12] This is important also during computer-assisted arthroplasty in addition to standard TFJ kinematics, for more appropriate bone preparation and implant positioning.…”

mentioning

confidence: 99%

“…10,13 For this goal, patellar motion must be tracked in all six degrees of freedom, thus overcoming the traditional twodimensional X-ray based views. 14 A number of studies, both in vitro [9][10][11][12][15][16][17][18][19][20] and in vivo, [21][22][23][24][25][26][27][28] have dealt with patellar tracking by different methodological approaches and measuring devices. Among them, magnetic resonance and X-ray stereo-photogrammetry do not allow the acquisition of natural and continuous movements in a large range of knee positions.…”

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confidence: 99%

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Three‐dimensional patellar motion at the natural knee during passive flexion/extension. An in vitro study

Belvedere

Leardini

Bianchi

et al. 2009

Journal Orthopaedic Research

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Patellar maltracking may result in many patellofemoral joint (PFJ) disorders in the natural and replaced knee. The literature providing quantitative reference for normal PFJ kinematics according to which patellar maltracking could be identified is still limited. The aim of this study was to measure in vitro accurately all six-degrees-of-freedom of patellar motion with respect to the femur and tibia on 20 normal specimens. A state-of-the-art knee navigation system, suitably adapted for this study aim, was used. Anatomical reference frames were defined for the femur, tibia, and patella according to international recommendations. PFJ flexion, tilt, rotation, and translations were calculated in addition to standard tibiofemoral joint (TFJ) kinematics. All motion patterns were found to be generally repeatable intra-/ interspecimens. PFJ flexion was 62% of the corresponding TFJ flexion range; tilt and translations along femoral mediolateral and tibial proximodistal axes during TFJ flexion were found with medial, lateral, and distal trends and within 128, 6 and 9 mm, respectively. No clear pattern for PFJ rotation was observed. These results concur with comparable reports from the literature and contribute to the controversial knowledge on normal PFJ kinematics. Their consistence provides fundamental information to understand orthopedic treatment of the knee and for possible relevant measurements intraoperatively. ß

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Section: D Patellar Motion At the Natural Knee During Passive Flexiosupporting

confidence: 91%

Section: D Patellar Motion At the Natural Knee During Passive Flexiomentioning

confidence: 80%

Section: D Patellar Motion At the Natural Knee During Passive Flexiomentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Three‐dimensional patellar motion at the natural knee during passive flexion/extension. An in vitro study

Belvedere

Leardini

Bianchi

et al. 2009

Journal Orthopaedic Research

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Runner's Knee

Yeung

2011

Evidence‐Based Orthopedics

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Sex‐Specific Influence of Quadriceps Weakness on Worsening Patellofemoral and Tibiofemoral Cartilage Damage: A Prospective Cohort Study

Culvenor

Segal

Guermazi

et al. 2019

Arthritis Care & Research

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Objective Reports on quadriceps weakness as a risk factor for incident and progressive knee osteoarthritis are conflicting, potentially due to differing effects of muscle strength on patellofemoral and tibiofemoral compartments. This study aimed to examine the sex‐specific relation of quadriceps strength to worsening patellofemoral and tibiofemoral cartilage damage over 84 months. Methods The Multicenter Osteoarthritis Study is a cohort study of individuals with or at risk for knee osteoarthritis. Maximal quadriceps strength was assessed at baseline. Cartilage damage was semiquantitatively assessed by magnetic resonance imaging at baseline and 84‐month follow‐up using the Whole‐Organ Magnetic Resonance Imaging Score (WORMS). Worsening patellofemoral and tibiofemoral cartilage damage was defined as any WORMS score increase in each subregion within medial and lateral compartments separately. Logistic regression with generalized estimating equations was used to assess the sex‐specific relation of quadriceps strength to worsening cartilage damage. Results A total of 1,018 participants (mean ± SD age 61 ± 8 years, and mean ± SD body mass index 29.3 ± 4.5 kg/m2; 64% female) were included. Quadriceps weakness increased the risk of worsening lateral patellofemoral cartilage damage in women (risk ratio for lowest versus highest quartile of strength 1.50 [95% confidence interval 1.03–2.20]; P = 0.007 for linear trend) but not in men. There was generally no association between quadriceps weakness and worsening cartilage damage in the medial or lateral tibiofemoral compartment for either women or men. Conclusion Low quadriceps strength increased the risk of worsening cartilage damage in the lateral patellofemoral joint of women, suggesting that optimizing quadriceps strength may help prevent worsening of structural damage in the patellofemoral joint in women.

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The influence of weakness in the vastus medialis oblique muscle on the patellofemoral joint: an in vitro biomechanical study

Cited by 162 publications

References 13 publications

Three‐dimensional patellar motion at the natural knee during passive flexion/extension. An in vitro study

Three‐dimensional patellar motion at the natural knee during passive flexion/extension. An in vitro study

Runner's Knee

Sex‐Specific Influence of Quadriceps Weakness on Worsening Patellofemoral and Tibiofemoral Cartilage Damage: A Prospective Cohort Study

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