Non‐uniform displacement within ruptured Achilles tendon during isometric contraction
نویسندگان
چکیده
The purpose of this study was investigate tendon displacement patterns in non-surgically treated patients 14 months after acute Achilles rupture (ATR) and to classify into groups based on their (AT) patterns. Twenty were tested. Sagittal images AT acquired using B-mode ultrasonography during ramp contractions at a torque level corresponding 30% the maximal isometric plantarflexion uninjured limb. A speckle tracking algorithm used track proximal-distal movement tissue 6 antero-posterior locations. Two-way repeated measures ANOVA for peak performed. K-means clustering according difference relative across locations larger (1.29 ± 0.87 mm) than injured limb (0.69 0.68 mm), with mean (95% CI) 0.60 mm (0.14-1.05 mm, P < .001) between limbs. For limb, cluster analysis formed 3 groups, while 2 three distinct may arise from subject-specific anatomical variations sub-tendons, two reflect differential recovery ATR non-surgical treatment. Subject-specific characteristics are vital determinant stress distribution tendon. Changes lead variation location magnitude within free AT. Quantifying internal provides new insights recovery.
منابع مشابه
Minimally invasive repair of ruptured Achilles tendon.
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Freehand three-dimensional ultrasound (3DUS) was used to investigate longitudinal and biaxial transverse deformation and rotation of the free Achilles tendon in vivo during a voluntary submaximal isometric muscle contraction. Participants (n = 8) were scanned at rest and during a 70% maximal voluntary isometric contraction (MVIC) of the plantarflexors. Ultrasound images were manually digitized ...
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متن کامل
The ruptured Achilles tendon: operative and non-operative treatment options
The Achilles tendon is the strongest and thickest tendon in the human body. Like any other tendon in the body, however, it is susceptible to rupture. Many surgeons advocate early operative repair of the ruptured Achilles tendon, citing decreased re-rupture rates and improved functional outcome. Waiting for surgical repair for longer than one month may lead to inferior functional results postope...
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ژورنال
عنوان ژورنال: Scandinavian Journal of Medicine & Science in Sports
سال: 2021
ISSN: ['0905-7188', '1600-0838']
DOI: https://doi.org/10.1111/sms.13925