Arthrometric Measurement of Ankle-Complex Motion: Normative Values

Schwarz, Neil; Kovaleski, John E.; Heitman, Robert J.; Gurchiek, Larry R.; Gubler-Hanna, Coral

doi:10.4085/1062-6050-46.2.126

Cited by 17 publications

(14 citation statements)

References 28 publications

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“…The execution of the measurement techniques throughout these studies can be well transferred since the use of the arthrometer is well described and reportedly easy to implement. The normative values for healthy ankles, however, were rarely achieved in the control groups of other publications. Furthermore, the authors reflect upon their very wide range of normative values .…”

Section: Discussionmentioning

confidence: 81%

“…In a dynamic measurement one group applied 1 kg at a velocity of 1.7 m/s . All authors reported anterior displacement only, except for two authors who used the entire ROM from posterior to anterior as a means of identifying MAI . The anterior displacement measured in CAI patients ranged from 3.2 ± 2.8 mm to 21 ± 2.5 mm, but the application of load differs greatly between the different arthrometers.…”

Section: Resultsmentioning

confidence: 97%

“…The normative values for healthy ankles, however, were rarely achieved in the control groups of other publications. Furthermore, the authors reflect upon their very wide range of normative values . Thus, the diagnostic accuracy of the results obtained by this device can only be judged from secondary parameters; the specificity and sensitivity have not been reported.…”

Section: Discussionmentioning

confidence: 97%

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In vivo arthrometer measurements of mechanical ankle instability—A systematic review

Lohrer²,

Gollhofer

et al. 2019

Journal Orthopaedic Research

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Chronic ankle instability is caused by functional and/or mechanical deficits. To differentiate the two entities, mechanical ankle instability can be assessed using arthrometers. The measurement of mechanical instability is essential, since it can only be addressed surgically. The aim of this systematic literature review was to find out whether chronic mechanical ankle instability could be adequately and objectively assessed using in vivo arthrometer measurements. Articles were included if the main focus was to evaluate the contribution of mechanical deficits to chronic ankle instability and if they provided sufficient description of the device used. This systematic review was performed according to the PRISMA-recommendations. Initially 47 articles were screened for eligibility, of which 33 studies reporting 10 different devices were included. While the reliability of the measurements was mostly good to excellent, only two studies aimed to assess the sensitivity and specificity of their results in regard to chronic ankle instability. Several devices reported conflicting results about mechanical deficits. In summary, this systematic review reveals a substantial deficit in diagnostic accuracy when assessing mechanical ankle instability in a clinical setting. Biases in recruiting and classification of participants raise the question whether the two entities of functional and mechanical ankle instability are properly defined. Clinical Significance: In recent years, this may have led to a misinterpretation of mechanical deficits and the subsequent need for surgical intervention. ß 2019

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Section: Discussionmentioning

confidence: 81%

Section: Resultsmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 97%

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In vivo arthrometer measurements of mechanical ankle instability—A systematic review

Lohrer²,

Gollhofer

et al. 2019

Journal Orthopaedic Research

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“…Additionally, their laxity values at 08 of flexion (8.12 6 2.1 mm) and 908 of flexion (9.73 6 2.3 mm) were nearly identical to those we report. Schwarz et al 13 demonstrated normative values for anterior displacement ranging from 8.59À9.95 mm using 125 N of anterior-loading force (with the knee in full extension). The values at 08 of flexion we obtained fall within this range reported by Schwarz et al 13 These comparative findings point to the importance of standardizing loading forces as well as knee and ankle positioning, especially when we compare research trials.…”

Section: Discussionmentioning

confidence: 99%

Examining Ankle-Joint Laxity Using 2 Knee Positions and With Simulated Muscle Guarding

Hanlon

Caccese

Knight

et al. 2016

Journal of Athletic Training

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In a relaxed state, the gastrocnemius muscle did not appear to affect anterior ankle laxity at the 2 most common knee positions for anterior drawer testing; however, talar tilt testing may be best performed with the knee in 0° of knee flexion. Finally, our outcomes from the simulated muscle-guarding condition suggest that clinicians should use caution and be aware of reduced perceived laxity when performing these clinical examination techniques immediately postinjury.

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“…Testing was based on a previously reported protocol with demonstrated reliability [296][297][298]343 .…”

Section: Ankle -Subtalar Joint Laxitymentioning

confidence: 99%

Understanding the physical and psychological impairments and associated disability characterising individuals with ankle symptoms and osteoarthritis

Mahrouqi¹

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Musculoskeletal conditions are prevalent worldwide and are associated with pain, disability and impaired quality of life (QoL). Osteoarthritis (OA) is a common, costly and disabling musculoskeletal condition. Lower limb OA research has focussed on the hip and knee and, as a consequence, impairments characterising ankle OA are not well understood.This thesis aims to advance our understanding of the physical, functional and psychological impairments and associated disability in individuals with persistent ankle symptoms and in those with radiographic evidence of ankle OA. Study 1: A systematic literature review and meta-analysis was conducted to synthesise and appraise the quality of studies investigating physical impairments in ankle OA. The review identified eight studies, three of which were included in the meta-analyses. Meta-analyses revealed large impairments of ankle sagittal plane range of motion (ROM) on the affected compared to the unaffected side and less sagittal plane torque in ankle OA compared to controls. Evidence from single studies indicated deficits in frontal plane ROM and strength, talar translation and rotation, balance, electromyography of ankle muscles, abnormal bony alignments and greater fatty infiltrate in all calf muscle compartments in individuals with ankle OA. Critical appraisal of the literature revealed limitations surrounding assessor blinding, measurement validity, and lack of generalization. Study 2: A cross-sectional laboratory study of 96 participants compared physical measures of function, strength, ROM and posture and patient-reported outcomes in 1) individuals with symptoms and radiographic evidence of ankle OA to asymptomatic individuals; and 2) asymptomatic individuals with and without radiographic evidence of ankle OA. Those with symptomatic OA reported greater pain, disability, instability, kinesiophobia, lower function and QoL, and exhibited significant deficits in muscle strength, ROM and ambulatory function compared to asymptomatic individuals. Most patient-reported and physical outcomes were similar between asymptomatic individuals with and without radiographic OA. Stair function times were significantly associated with QoL and self-reported function. ii Study 3: A cross-sectional exploratory survey (n=394) was conducted to compare selfreported daily living and sports function, ankle pain and disability, physical activity, ankle instability, and QoL between individuals with and without persistent ankle pain and stiffness, and to explore factors associated with QoL. Individuals with ankle symptoms reported worse scores for all measures, except self-reported physical activity. Daily living function and age explained 66% of the variance in QoL. Study 4: Individuals with and without persistent ankle pain and stiffness (n= 231) participated in an online survey to obtain data about pain severity, pain self-efficacy, anxiety, depression, kinesiophobia, pain catastrophizing, and function. Individuals with persistent ankle pain reported higher pain and depressive symptoms, an...

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Arthrometric Measurement of Ankle-Complex Motion: Normative Values

Cited by 17 publications

References 28 publications

In vivo arthrometer measurements of mechanical ankle instability—A systematic review

In vivo arthrometer measurements of mechanical ankle instability—A systematic review

Examining Ankle-Joint Laxity Using 2 Knee Positions and With Simulated Muscle Guarding

Understanding the physical and psychological impairments and associated disability characterising individuals with ankle symptoms and osteoarthritis

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