scholarly journals Biomechanical evaluation of patients after severe treatment of Achilles tendon Injuries using MIS procedure

2020 ◽  
Vol 85 (5-6) ◽  
pp. 103-108
Author(s):  
Michał Konik ◽  
◽  
Jacek Lorkowski ◽  
Ireneusz Kotela ◽  
Michał Wychowański

Introduction. Achilles tendon is the strongest tendon in the human body. In 1977 Ma and Griffith described the technique of percutaneous anaplasty of the damaged Achilles tendon as a compromise between surgical and conservative treatment. Choosing an operating method that gives “better” treatment results can facilitate the choice of a more effective treatment. Aim. The aim of the study was to evaluate the biomechanics of surgical treatment of patients with Achilles tendon injury using minimally invasive method. Material and Methods. The study material included 31 patients treated surgically for Achilles tendon injury in the Department of Orthopedics and Traumatology of CSK MSW in Warsaw in years 2011-2016. The research group consisted of 27 men and 4 women. Their average age was 40 years. The following research tools were used to evaluate the treatment results: 1. Measuring instrument for maximum force moments in ankle joint JBA “Staniek” 2. HUR stabilographic platform Conclusions. 1 Patients presented a similar balance control on the stabilographic platform in research groups. 2. Higher values of maximum force moments in ankle joint were recorded in healthy limb.

Author(s):  
Jonathan Kenneth Sinclair ◽  
Lindsay Bottoms

AbstractRecent epidemiological analyses in fencing have shown that injuries and pain linked specifically to fencing training/competition were evident in 92.8% of fencers. Specifically the prevalence of Achilles tendon pathology has increased substantially in recent years, and males have been identified as being at greater risk of Achilles tendon injury compared to their female counterparts. This study aimed to examine gender differences in Achilles tendon loading during the fencing lunge.Achilles tendon load was obtained from eight male and eight female club level epee fencers using a 3D motion capture system and force platform information as they completed simulated lunges. Independent t-tests were performed on the data to determine whether differences existed.The results show that males were associated with significantly greater Achilles tendon loading rates in comparison to females.This suggests that male fencers may be at greater risk from Achilles tendon pathology as a function of fencing training/ competition.


1999 ◽  
Vol 27 (3) ◽  
pp. 363-369 ◽  
Author(s):  
Christopher A. Kurtz ◽  
Thomas G. Loebig ◽  
Donald D. Anderson ◽  
Patrick J. DeMeo ◽  
Phil G. Campbell

2017 ◽  
Vol 32 (2) ◽  
pp. 125-139 ◽  
Author(s):  
Mariana de Castro Nicodemo ◽  
Lia Renó das Neves ◽  
Josafá Carvalho Aguiar ◽  
Flaviane de Souza Brito ◽  
Isabelle Ferreira ◽  
...  

2015 ◽  
Vol 27 (1) ◽  
pp. 34-38
Author(s):  
Thomas D. O’Brien

Children develop lower levels of muscle force, and at slower rates, than adults. While strength training in children is expected to reduce this differential, a synchronous adaptation in the tendon must be achieved to ensure forces continue to be transmitted to the skeleton with efficiency while minimizing the risk of strainrelated tendon injury. We hypothesized that resistance training (RT) would alter tendon mechanical properties in children concomitantly with changes in force production characteristics. Twenty prepubertal children (8.9 ± 0.3 years) were equally divided into control (nontraining) and experimental (training) groups. The training group completed a 10-week RT intervention consisting of 2-3 sets of 8-15 plantar flexion contractions performed twice weekly on a recumbent calf raise machine. Achilles tendon properties (cross-sectional area, elongation, stress, strain, stiffness and Young’s modulus), electromechanical delay (EMD; time between the onset of muscle activity and force), rate of force development (RFD; slope of the force-time curve) and rate of EMG increase (REI; slope of the EMG-time curve) were measured before and after RT. Tendon stiffness and Young’s modulus increased significantly after RT in the experimental group only (~29% and ~25%, respectively); all other tendon properties were not significantly altered, although there were mean decreases in both peak tendon strain and strain at a given force level (14% and 24%, respectively, n.s) which may have implications for tendon injury risk and muscle fiber mechanics. A ~13% decrease in EMD was found after RT for the experimental group which paralleled the increase in tendon stiffness (r = −0.59), however RFD and REI were unchanged. The present data show that the Achilles tendon adapts to RT in prepubertal children and is paralleled by a change in EMD, although the magnitude of this change did not appear to be sufficient to influence RFD. These findings are of potential importance within the context of the efficiency and execution of movement.


2020 ◽  
Vol 112 (5) ◽  
pp. S40
Author(s):  
James Clemmons ◽  
Jared Watson ◽  
Jeremy Watson ◽  
Onaje Artist ◽  
Robert Wilson

2010 ◽  
Vol 25 (1) ◽  
pp. 49-52 ◽  
Author(s):  
A. I. Aiyegbusi ◽  
F. I. O. Duru ◽  
C. C. Anunobi ◽  
C. C. Noronha ◽  
A. O. Okanlawon

2017 ◽  
Vol 3 (1) ◽  
pp. 220-224
Author(s):  
Ahda Nur Arifah ◽  
Yeti Kartikasari ◽  
Emi Murniati

Background : Research on the difference comparison the value of Signal To Noise Ratio (SNR) at MRI Ankle Joint examination using Quad Knee Coil and Flex/Multipurpose Coil at the hospital's radiology installation Telogorejo Semarang. Quad knee coil is a volume coil, is a coil that can act as a transmitter and receiver at the same RF signal (transreceiver). Flex / Multipurpose Coil is a surface coil which has a high SNR for a superficial examination (a small organ). The purpose of this research is to know comparison the value of signal to noise ratio (SNR) and higher the value of signal to noise ratio (SNR) at MRI Ankle Joint examination using Quad Knee Coil and Flex / Multipurpose Coil.Method : This type of research is quantitative experimental approach. The research data which 6 samples. Rate includes images subjectively talocalcaneal interosseous ligament, talocrural joint, subtalar joint, the calcaneus, tibia, talus, and the Achilles tendon. Then the results of the data in Paired T-Test tested.Results : Test results that there are differences in comparison the value of signal to noise ratio (SNR) at MRI Ankle Joint examination using Quad Knee Coil and Flex / Multipurpose Coil which has a p-value / sig for all of 0.002, and each criterion that have talocalcaneal interoseous ligament p value 0.026, talocrural joint p value 0.017, subtalar joint p value 0.001, calcaneus p value 0.002, tibia p value 0.003, talus p value 0.006, and achilles tendon p value 0.012. This is in accordance with the calculated average value SNR on the use of Quad Knee Coil is higher at 110.67 because the coil acts as transreceiver and has two preamplifier so as to improve the SNRConclusion : There is a differences in comparison the value of Signal To Noise Ratio (SNR) at MRI Ankle Joint examination using Quad Knee Coil and Flex / Multipurpose Coil.


2011 ◽  
Vol 27 (1) ◽  
pp. 103-111 ◽  
Author(s):  
Jon Joensen ◽  
Nils Roar Gjerdet ◽  
Steinar Hummelsund ◽  
Vegard Iversen ◽  
Rodrigo Alvaro B. Lopes-Martins ◽  
...  

2010 ◽  
Vol 25 (1) ◽  
pp. 22-28 ◽  
Author(s):  
Susanne Rein ◽  
Tobias Fabian ◽  
Hans Zwipp ◽  
Jan Heineck ◽  
Stephan Weindel

OBJECTIVE: The aim of this study was to examine the influence of extensive work-related use of the feet on functional ankle stability among musicians. METHODS: Thirty professional organists were compared to professional pianists and controls. All participants completed a questionnaire. Range of motion (ROM), peroneal reaction time, and positional sense tests of the ankle were measured. The postural balance control was investigated with the Biodex Stability System for the stable level 8 and unstable level 2. Statistical analysis was done with the Kruskal-Wallis test, Mann-Whitney test with Bonferroni-Holm correction, and Fisher’s exact test. RESULTS: Nine of 30 organists compared to 5 of 30 pianists and controls reported ankle sprains in their medical history. Pianists had a significant increased flexion of both ankle joints compared to organists (p≤0.01) and increased flexion of the right ankle joint compared to controls (p=0.02). The positional sense test and postural balance control showed no significant differences among groups. The peroneal reaction time of the right peroneus longus muscle was significantly increased in pianists compared to controls (p=0.008). CONCLUSIONS: Organists have shown a high incidence of ankle sprains. Despite their extensive work-related use of the ankle joints, organists have neither increased functional ankle stability nor increased ROM of their ankle joints in comparison to controls. Pianists have increased flexion of the ankle joint, perhaps due to the exclusive motion of extension and flexion while using the pedals. To minimize injuries of the ankle and improve functional ankle stability as well as balance control, proprioceptive exercises of the ankle in daily training programs are recommended.


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