Visual assessment of dynamic knee joint alignment in patients with patellofemoral pain: an agreement study

Hansen, Rudi; Lundgaard-Nielsen, Mathilde; Henriksen, Marius

doi:10.7717/peerj.12203

Cited by 7 publications

(2 citation statements)

References 33 publications

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“…The difference between the clinicians' observations and objective analysis is probably not related to the reliability of the assessment. A clear consistency in the assessments was observed and a previous investigation reported that dynamic knee alignment can be evaluated reliably by an experienced clinician in forward lunge ( 25 ). Most likely the visual evaluation is not sensitive enough for detecting the subtle changes in movement quality that the objective analysis was able to detect.…”

Section: Discussionsupporting

confidence: 63%

Altered movement strategy during functional movement after an ACL injury, despite ACL reconstruction

Stenroth

Bartholdy

Larsen

et al. 2022

Front. Sports Act. Living

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Knee joint functional deficits are common after anterior cruciate ligament (ACL) injury, but different assessment methods of joint function seem to provide contradicting information complicating recovery monitoring. We previously reported improved perceived knee function and functional performance (forward lunge ground contact time) in patients with an ACL injury from pre to 10 months post ACL reconstruction without improvement in knee-specific biomechanics. To further investigate this discrepancy, we additionally analyzed knee extensor and flexor muscle strength, and movement quality in the forward lunge (subjective and objective evaluations) and performed a full lower limb biomechanical analysis of the forward lunge movement. We included 12 patients with an ACL injury (tested before and after ACL reconstructive surgery) and 15 healthy controls from the previous study to the current investigation. Outcome measures were obtained pre and ~11 months post ACL reconstruction for the patients and at a single time point for the controls. Objective movement quality in the patients with an ACL injury showed an improvement from their pre reconstruction surgery visit to the post reconstruction visit but this was not observable in the subjective evaluation. Knee extensor muscle strength declined after the ACL reconstruction by 29% (p = 0.002) and both knee extensors (p < 0.001) and flexors (p = 0.027) were weaker in the patients post ACL reconstruction compared to healthy controls. ACL injured patients had an altered movement strategy in the forward lunge with reduced knee extensors contribution and increased hip extensor contribution compared to the controls both before and after the reconstruction. The altered movement strategy was associated with knee extensor muscle strength. This explorative study with a limited sample size found that clinicians should be aware that significant functional deficits in the knee extensor muscles, both in isolated muscle strength testing and during a functional movement, may be present although patients perceive an improvement in their knee function and present good functional performance without obvious movement quality issues.

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Section: Discussionsupporting

confidence: 63%

Altered movement strategy during functional movement after an ACL injury, despite ACL reconstruction

Stenroth

Bartholdy

Larsen

et al. 2022

Front. Sports Act. Living

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“…Additionally, this test was chosen because it is less physically demanding compared to commonly used jump tests. Moreover, the SLS test closely mirrors daily activities like stair ascending and descending, as highlighted by Hansen et al ( 2021) [34]. Making it more relevant for this study population, where symptoms primarily impact the quality of daily life, function, and performance.…”

Section: Discussionmentioning

confidence: 62%

Changes in dynamic quadriceps angle in patients with chronic ankle instability

Elgendy,

Mohamed,

Mohamed

2024

ijhs

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Background: Changes in dynamic Quadriceps Angle (Q angle) had been studied in healthy subjects and individuals with other musculoskeletal disorders; however, in chronic ankle instability (CAI), it has not yet been determined. The purpose of this study was to investigate the difference in dynamic Q angle of patients with unilateral chronic ankle instability and those without chronic ankle instability. Methods: One-hundred and four participants with and without chronic ankle instability from both genders aged between 18-30 years, with a BMI range of 17.9-27.3, were enrolled into 2 equal groups; a study group and a control group, with mean values of age of the study and control groups (20.8±2.4) and (20.9±3) years respectively and of BMI (24.1±4.3) and (23.8±2.9) kg/m2 respectively. Dynamic Q angle measurement is carried out using dynamic knee valgus (DKV) through the frontal plane projection angle (FPPA) during single limb squat. Results: A statistically significant difference in FPPA angle was observed between the affected limb of the CAI group and controls (P=0.001). Conclusion: The present study suggested that unilateral CAI display an increased knee valgus, suggesting an additional proximal kinematic alteration and chronic maladaptation in the CAI population.

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Comparison of kinematic parameters, muscle activity and movement timing between “good” and “poor” performers of a single-leg squat

Zawadka,

Smolka,

Lukasik

et al. 2024

Journal of Bodywork and Movement Therapies

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Visual assessment of dynamic knee joint alignment in patients with patellofemoral pain: an agreement study

Cited by 7 publications

References 33 publications

Altered movement strategy during functional movement after an ACL injury, despite ACL reconstruction

Altered movement strategy during functional movement after an ACL injury, despite ACL reconstruction

Changes in dynamic quadriceps angle in patients with chronic ankle instability

Comparison of kinematic parameters, muscle activity and movement timing between “good” and “poor” performers of a single-leg squat

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