View clinical trials related to Achilles Tendon Rupture.
Filter by:Early rehabilitation protocols have been studied in Achilles tendon (AT) rupture patients, but deficits in tendon biomechanical properties have been observed several years after the injury. AT rupture patients are unable to return to their previous levels of physical activity. They present deleterious adaptations in the plantar flexor muscles that lead to functional deficits, and deficits in the tendon's structural and mechanical properties. Eccentric contractions have been suggested to recover these muscle properties. This contraction is known to produce higher force compared to isometric and concentric contractions, and increases tendon stiffness. However, there is a lack of studies showing the effects of the eccentric training in AT rupture rehabilitation. We want to know if an isokinetic eccentric training program will determine the desired adaptations on triceps surae muscle-tendon unit's properties in patients subjected to the AT surgical repair. More specifically, the aim of this study is verifying the effects of a 12-week eccentric training program on triceps surae muscle-tendon unit's properties in subjects that were subjected to the AT surgical repair. 30 subjects will be randomized in two groups: (1) isokinetic eccentric training; and (2) traditional eccentric training control group. All participants will be submitted to a four-week control period, followed by a 12-week period of training for the plantar flexor muscles. Neuromuscular system properties, AT biomechanical properties and functional tests will be evaluated. Participants will be evaluated in four moments: at baseline; after 4, 8 and 12 weeks of rehabilitation. Tendon mechanical (stiffness, stress, strain), material (Young's modulus) and morphological (cross-sectional area and tendon length) properties; muscle architecture (thickness, pennation angle and fascicle length); and functional tests (heel rise resistance and height) will be analyzed between groups and periods. Effects and interactions will be analyzed with ANOVA two-way. Clinical effects will be analyzed using effect size and magnitude-based inferences.
A prospective, non-randomised, observational study to investigate the clinical and biomechanical outcomes and prevalence of reruptures after operative or nonoperative treatment of acute achilles tendon rupture.
The objective of this study is to determine if Achilles tendon elongation and gait pattern differ between patients treated using an individualized treatment algorithm and patients treated as usual (two control groups; patients treated operatively and non-operatively). The individualized treatment algorithm is based on ultrasonographic status of tendon overlap and Copenhagen Achilles Length Measure (1). Patients are allocated for operative treatment if there the tendon overlap is less than 25 % or the tendon is elongated with 7% or more compared to the healthy, contralateral achilles tendon.
To asses the functional outcome after individualized treatment of acute achilles tendon rupture. The treatment is individualizes on the basis of ultrasonographic status of tendon overlap and Barfod's Ultrasonographic length measure. Patients are allocated for operative treatment if there the tendon overlap is less than 25 % or the tendon is elongated with 7% or more compared to the healthy, contralateral achilles tendon. The study includes two control groups of non-operative and operative treatment.
The objective of this study is to examine how elongation of the Achilles tendon develops during the first year after rupture among patients with an Achilles tendon rupture, and how it affects physical function. The aim is to define a cutoff of acceptable elongation dividing the patients who obtain normal physical function (Limb Symmetry Index > 90%) from those who do not. Patients treated both operatively and non-operatively will be included.
Lower limb immobilization is associated with high risk of complications, i.e. venous thromboembolism (VTE) and failed healing. Pharmacoprophylaxis of VTE is in leg-immobilized patients, however, low- or non-effective and associated with adverse events. Thus, there is a need for novel treatments. This study aims to demonstrate in leg immobilized patients who have suffered an ankle fracture (1000 patients) or an Achilles tendon rupture (400 patients) that adjuvant intermittent pneumatic compression (IPC) therapy, which targets impaired vascular flow, compared to treatment-as-usual with plaster cast, reduces VTE incidence and improves healing.
The transfer of Flexor Hallucis Longus (FHL) in the management of chronic Achilles tendon ruptures has demonstrated good functional outcome, but an extensive surgical field at a vulnerable location may lead to increased risk for soft tissue problems. The arthroscopic FHL transfer may reduce the risk for soft tissue problems. Functional outcome parameters are investigated, wound/soft tissue complications registered.
The purpose of this study is to measure the mechanical properties of the tendon after conservative treated Achilles tendon ruptures with or without early controlled loading. This is done in a randomized trial and the mechanical properties are measured using roentgen stereometric analysis (RSA). The hypothesis is that early weightbearing improves mechanical properties of conservative treated Achilles tendon ruptures without causing elongation of the tendon.
Using a population of patients from another study, who was originally randomized to 2 different types of nonoperative treatment after an acute achilles tendon rupture, the length of the achilles tendon is examined using ultrasound, and foot pressure mapping is performed, 4-5 years after the injury.
A total of 56 patients completed a previous study regarding non-operative treatment for acute achilles tendon rupture. This study consists of an additional follow up after 4-5 years depending on original date of injury.