scholarly journals Evaluation of Elastic Stiffness in Healing Achilles Tendon After Surgical Repair of a Tendon Rupture Using In Vivo Ultrasound Shear Wave Elastography

2016 ◽  
Vol 22 ◽  
pp. 1186-1191 ◽  
Author(s):  
Li-ning Zhang ◽  
Wen-bo Wan ◽  
Yue-xiang Wang ◽  
Zi-yu Jiao ◽  
Li-hai Zhang ◽  
...  
Keyword(s):  
Achilles Tendon ◽  
Shear Wave ◽  
Tendon Rupture ◽  
Surgical Repair ◽  
Shear Wave Elastography ◽  
Elastic Stiffness

Importance of shear-wave elastography in prediction of Achilles tendon rupture

2020 ◽  
Author(s):  
Gordana Ivanac ◽  
Domagoj Lemac ◽  
Vilma Kosovic ◽  
Kristina Bojanic ◽  
Tomislav Cengic ◽  
...  
Keyword(s):  
Achilles Tendon ◽  
Shear Wave ◽  
Tendon Rupture ◽  
Achilles Tendon Rupture ◽  
Shear Wave Elastography

scholarly journals The Influence of Diabetes on Acute Achilles Tendon Rupture Repair

2018 ◽  
Vol 3 (3) ◽  
pp. 2473011418S0028
Author(s):  
Jonathan Kaplan ◽  
Jeffery Hillam ◽  
Amiethab Aiyer ◽  
Niall Smyth
Keyword(s):  
Diabetes Mellitus ◽  
Postoperative Complications ◽  
Achilles Tendon ◽  
Power Analysis ◽  
Tendon Rupture ◽  
Surgical Repair ◽  
Achilles Tendon Rupture ◽  
The United States ◽  
Foot And Ankle ◽  
Tendon Ruptures

Category: Sports Introduction/Purpose: Diabetes Mellitus (DM) is an epidemic affecting millions of individuals in the United States. Multiple studies have demonstrated an increase in complications in foot and ankle surgery in patients with DM, including wound healing complications, surgical site infections (SSI), or surgical failure. The goal of this study was to retrospectively review outcomes data from the National Surgical Quality Improvement Program (NSQIP) to determine the impact of DM on operative treatment of achilles tendon ruptures. Methods: Using the NSQIP from 2006-2015, patients were identified using common procedure terminology (CPT) for Achilles tendon ruptures. Diabetic and non-diabetic cohorts were evaluated to compare demographics, comorbidities, perioperative details and 30-day outcomes. Statistical evaluation included a power analysis for the primary outcome measure of wound disruption as well as univariate analysis was performed using chi-squared or Fisher’s exact and Wilcoxon signed-rank tests. Results: A total of 2,014 patients were identified having sustained an Achilles tendon rupture. There were 1,981 patients without DM and 33 patients with DM. There were no significant differences in postoperative complications, including SSI, medical complications, and 30-day outcomes between patients with DM and non-DM patients undergoing surgical repair of acute Achilles tendon ruptures. The power analysis for wound disruption showed a P=0.9 with an alpha of 0.05, sample size of n=2014, and Pearson correlation coefficient of r=0.0721 Conclusion: While DM has been shown to have an increase in complications in various foot and ankle procedures, this study demonstrates that there is no significant difference in postoperative complications and 30-day outcomes between patients with DM and non-DM patients undergoing surgical repair of acute Achilles tendon ruptures using the NSQIP database from 2006-2015. Based on this data, patients with diabetes mellitus can be considered adequate surgical candidates for acute Achilles tendon rupture repair.

Alterations in the In Vivo Torque-Velocity Relationship After Achilles Tendon Rupture Further Evidence of Speed-Specific Impairment

1992 ◽  
Vol &NA; (279) ◽  
pp. 237???245 ◽  
Author(s):  
STEVEN D. WASHBURN ◽  
VINCENT J. CAIOZZO ◽  
CHRIS A. WILLS ◽  
BERNARD J. HUNT ◽  
CARLOS A. PRIETTO
Keyword(s):  
Achilles Tendon ◽  
Tendon Rupture ◽  
Achilles Tendon Rupture ◽  
Velocity Relationship

Effect of Rest Duration Between Static Stretching on Passive Stiffness of Medial Gastrocnemius Muscle In Vivo

2020 ◽  
Vol 29 (5) ◽  
pp. 578-582
Author(s):  
Masatoshi Nakamura ◽  
Shigeru Sato ◽  
Ryosuke Kiyono ◽  
Nobushige Takahashi ◽  
Tomoichi Yoshida
Keyword(s):  
Elastic Modulus ◽  
Shear Wave ◽  
Repeated Measures ◽  
Shear Wave Elastography ◽  
Muscle Stiffness ◽  
Medial Gastrocnemius ◽  
Static Stretching ◽  
Shear Elastic Modulus ◽  
Before And After

Context: In clinical and sports settings, static stretching (SS) is usually performed to increase range of motion (ROM) and decrease passive muscle stiffness. Recently, the shear elastic modulus was measured by ultrasonic shear wave elastography as an index of muscle stiffness. Previous studies reported that the shear elastic modulus measured by ultrasound shear wave elastography decreased after SS, and the effects of SS on shear elastic modulus were likely affected by rest duration between sets of SS. Objective: To investigate the acute effects of SS with different rest durations on ROM and shear elastic modulus of gastrocnemius and to clarify whether the rest duration between sets of SS decreases the shear elastic modulus. Design: A randomized, repeated-measures experimental design. Setting: University laboratory. Participants: Sixteen healthy males volunteered to participate in the study (age 21.3 [0.8] y; height 171.8 [5.1] cm; weight 63.1 [4.5] kg). Main Outcome Measures: Each participant underwent 3 different rest interval durations during SS (ie, long rest duration: 90 s; normal rest duration: 30 s; and short rest duration: 10 s). This SS technique was repeated 10 times, thus lasting a total of 300 seconds with different rest durations in each protocol. The dorsiflexion ROM and shear elastic modulus were measured before and after SS. Results: Our results revealed that dorsiflexion ROM and shear elastic modulus were changed after 300-second SS; however, no effects of the rest duration between sets of SS were observed. Conclusions: In terms of decreasing the shear elastic modulus, clinicians and coaches should not focus on the rest duration when SS intervention is performed.

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