Preinjury and Postinjury Running Analysis Along With Measurements of Strength and Tendon Length in a Patient With a Surgically Repaired Achilles Tendon Rupture

2012 ◽  
Vol 42 (6) ◽  
pp. 521-529 ◽  
Author(s):  
Karin Grävare Silbernagel ◽  
Richard Willy ◽  
Irene Davis
Keyword(s):  
Achilles Tendon ◽  
Tendon Rupture ◽  
Achilles Tendon Rupture ◽  
Tendon Length

scholarly journals Use of ankle resting angle as a surrogate for tendon elongation in individuals following Achilles tendon rupture

2017 ◽  
Vol 2 (3) ◽  
pp. 2473011417S0001
Author(s):  
Heather Gotha ◽  
Jennifer Zellers ◽  
Karin Silbernagel
Keyword(s):  
Achilles Tendon ◽  
Tendon Rupture ◽  
Achilles Tendon Rupture ◽  
Cost Effective ◽  
Cross Sectional Study ◽  
Plantar Flexors ◽  
Cross Sectional ◽  
Tendon Length ◽  
Tendon Elongation ◽  
The Relationship

Category: Ankle, Sports Introduction/Purpose: Tendon elongation is associated with poor functional outcome in individuals after Achilles tendon rupture. While imaging modalities are reliable to measure Achilles tendon length, alternative time- and cost-effective measures are of interest. The resting angle of the ankle in prone both with knee extended1 and knee flexed2 have been used in the literature as surrogates for measuring Achilles elongation, however, their relationship to tendon length is not well-established. The purpose of this study is to validate the ankle resting angle as a measure of tendon elongation and examine the relationship of ankle resting angle to tendon elongation and calf strength. Methods: Individuals following unilateral Achilles tendon rupture, treated surgically, were included in this cross-sectional study. Individuals were excluded if they had deep wound infection or lumbar radiculopathy affecting the ankle plantar flexors. Ankle resting angle with knee extended and knee flexed to 90 degrees was measured using a digital inclinometer positioned on the lateral, plantar surface of the foot. Relative resting angle was calculated by subtracting the uninjured from the injured side. Tendon length to gastrocnemius was measured using B mode, extended field of view ultrasound imaging3 (tendon elongation = ruptured- uninjured). Calf strength was measured using the heel-rise test4. Limb symmetry indexes (LSI) were calculated (ruptured/uninjured sidex100) for total work performed on the heel-rise test. Results: Twenty-five individuals, a mean(SD) age of 44.2(13.6) years and mean(SD) of 22.5(39.1) months post-rupture, were included in this study. Mean(SD) relative resting angle with knee flexed was -5.4(6.4)° and mean (SD) relative resting angle with knee extended was -6.7(8.8)°. Mean(SD) tendon elongation was 1.56(1.20)cm. Mean(SD) heel-rise test work LSI was 45.8(23.8)%. Ankle resting angle with knee flexed related to elongation (r = -0.452, p = 0.027) and heel-rise test work LSI (r = 0.591, p=0.006). Ankle resting angle with knee extended related to elongation (r=-0.528, p=0.008) (Figure 1) but not heel-rise test work LSI. Conclusion: The results of this study suggest that ankle resting angle with knee extended and flexed are related to tendon elongation, however, calf strength also has a relationship to resting angle with knee flexed. This suggests that the ability of the calf to put passive tension on the foot is also a component of resting angle. The relationship between tendon elongation and resting angle with knee flexed may have been limited by methodological concerns, as tendon length was measured with the participant positioned with knees extended.

Repair of Chronic Complete Traumatic Rupture of the Common Calcaneal Tendon in a Dog, Using a Fascia Lata Graft

2000 ◽  
Vol 13 (02) ◽  
pp. 104-108 ◽  
Author(s):  
J. Shani ◽  
R. Shahar
Keyword(s):  
Achilles Tendon ◽  
Tendon Rupture ◽  
Achilles Tendon Rupture ◽  
Fascia Lata ◽  
Traumatic Rupture ◽  
Free Graft ◽  
Calcaneal Tendon ◽  
Tendon Length ◽  
The Common ◽  
Successful Repair

SummaryA 3-month-old male Cocker Spaniel was presented with the complaint of chronic right hind leg lameness. The owner described superficial trauma at the area of the hock, which was noticed immediately after delivery. History, habitus, physical examination, and radiography suggested rupture of the common calcaneal tendon. This report describes the successful repair of complete rupture of the common calcaneal tendon, with loss of tendon length, using a fascia lata free graft.The following case report describes the successful repair of a chronic complete traumatic rupture of all components of the Achilles tendon with loss of tendon length, in a 3-month-old puppy, using a tensor fascia lata free graft. Due to the young age of the animal no internal fixation was used to protect the graft, and external coaptation was used instead. Achilles tendon rupture is a relatively common injury in humans and many methods of repair are reported for acute and chronic ruptures. The medical and veterinary literature is reviewed with regard to the pathogenesis and treatment of Achilles tendon rupture.

scholarly journals Achilles Tendon Resting Angle Relates to Tendon Length and Function

2017 ◽  
Vol 39 (3) ◽  
pp. 343-348 ◽  
Author(s):  
Jennifer A. Zellers ◽  
Michael R. Carmont ◽  
Karin Grävare Silbernagel
Keyword(s):  
Mechanical Properties ◽  
Achilles Tendon ◽  
Test Performance ◽  
Tendon Rupture ◽  
Achilles Tendon Rupture ◽  
Shear Wave Elastography ◽  
Level Of Evidence ◽  
Tendon Length ◽  
Tendon Elongation ◽  
The Relationship

Background: Following Achilles tendon rupture, tendon elongation leads to long term deficits in calf function. A surrogate measure of Achilles tendon length, Achilles tendon resting angle (ATRA), has been described but has not been validated against length measured using ultrasound. Therefore, the purpose of this study was to validate the ATRA against ultrasound. Secondarily, this study aimed to identify the relationship of other factors (tendon mechanical properties, heel-rise test performance) to the ATRA. Methods: Individuals following unilateral Achilles tendon rupture were included. ATRA was measured in knee flexed and extended positions. Tendon elongation was measured using extended field of view ultrasound imaging. Continuous shear wave elastography quantified tendon mechanical properties. The relationship between variables was tested using Spearman’s ρ. Subgroup analysis was used to compare subjects with less then or greater than 1 year following rupture. A total of 42 participants (with a mean of 18.2 months following rupture [SD = 35.9]) were included. Results: Tendon elongation related with relative ATRA with knee flexed (ρ = .491, P = .001) and knee extended (ρ = 0.501, P = .001) positions. In individuals greater than 1 year following rupture, relative ATRA with the knee flexed related to shear modulus (ρ = .800, P = .01) and total work on the heel-rise test (ρ = –.782, P = .008) relative to the uninjured side. Conclusion: Relative ATRA in both knee flexed and knee extended positions has a moderate relationship to tendon elongation within the first year following rupture. After 1 year, the relative ATRA with knee flexed may be a better indicator of tendon elongation and also related to tendon mechanical properties and heel-rise test performance. Level of Evidence: Level III, case-control study.

Tendon Length, Calf Muscle Atrophy, and Strength Deficit After Acute Achilles Tendon Rupture

2017 ◽  
Vol 99A (18) ◽  
pp. 1509-1515 ◽  
Author(s):  
Juuso Heikkinen ◽  
Iikka Lantto ◽  
Juuso Piilonen ◽  
Tapio Flinkkilä ◽  
Pasi Ohtonen ◽  
...  
Keyword(s):  
Achilles Tendon ◽  
Muscle Atrophy ◽  
Tendon Rupture ◽  
Achilles Tendon Rupture ◽  
Calf Muscle ◽  
Tendon Length

Achilles Tendon Length, ATRS and Functional Outcomes 5 Years After Acute Achilles Tendon Rupture Treated Conservatively

2017 ◽  
Vol 33 (10) ◽  
pp. e128-e129
Author(s):  
Kristoffer Weisskirchner Barfod ◽  
Rasmus Kastoft ◽  
Jesper Bencke ◽  
Merete Speedtsberg ◽  
Rasmus M. Søndergaard ◽  
...  
Keyword(s):  
Achilles Tendon ◽  
Functional Outcomes ◽  
Tendon Rupture ◽  
Achilles Tendon Rupture ◽  
Tendon Length ◽  
Achilles Tendon Length
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