MR Imaging of Disorders of the Achilles Tendon

Schweitzer, Mark E.; Karasick, David

doi:10.2214/ajr.175.3.1750613

Cited by 227 publications

(159 citation statements)

References 57 publications

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“…With increasing age, the normal Achilles develops areas of fibrous, myxoid, fatty or occasionally ossific degeneration with disorganisation of its collagen matrix [28]. Excessive load during vigorous training may further stimulate degeneration, and lack of flexibility and underlying genetic and metabolic variables may play a role [29] [27].…”

Section: Biomechanics/ Mechanism Of Injurymentioning

confidence: 99%

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Imaging of plantar fascia and Achilles injuries undertaken at the London 2012 Olympics

et al. 2013

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This file was dowloaded from the institutional repository Brage NIH -brage.bibsys.no/nih Elias, D. A., Carne, A., Bethapudi, S., Engebretsen, L., Budgett, R., O'Connor, P. (2013 AbstractPlantar fascia and distal Achilles injuries are common in elite athletes. Acute athletic injuries of the plantar fascia include acute plantar fasciopathy and partial or complete tears. Underlying most acute injuries is a background of underlying chronic plantar fasciopathy. Injuries may affect the central or less commonly lateral portions of the fascia and acute tears are generally proximal. Athletic Achilles injuries may occur at the mid tendon or the distal insertion, and there may be an underlying chronic tendinopathy. Acute or chronic paratendinopathy may occur as a separate entity or combined with Achilles injury. In this article the spectrum of athletic injuries of the plantar fascia and Achilles is described, illustrated by imaging findings from the London 2012 Olympic games.

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Section: Biomechanics/ Mechanism Of Injurymentioning

confidence: 99%

“…On MR imaging, mid portion Achilles tendinopathy appears as mid tendon thickening with loss of parallelism of the anterior and posterior tendon margins on sagittal images [25] [28]. Intratendinous signal is also seen which may be patchy or diffuse.…”

Section: Imaging Findingsmentioning

confidence: 99%

Imaging of plantar fascia and Achilles injuries undertaken at the London 2012 Olympics

et al. 2013

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“…Although it is resistable to almost 1 ton of tractive force, it is stated in the studies that it is one of the most frequently ruptured tendons in the body (Apaydın et al). In developed countries, 50% of all the tendon injuries are reported to occur in calcaneal tendon (Apaydın et al;Morel et al, 2005;Schweitzer & Karasick, 2000). It is also pointed out in the researches that the muscle tension in calcaneal tendon that has a very important function in the biomechanics of the lower extremity is reported to be approximately 250% as much as the weight of the body (Apaydın et al; Morel et al; Schweitzer & Karasick).…”

Section: Discussionmentioning

confidence: 99%

A Study on the Structure and Morphologic Development of Calcaneal Tendon and Triceps Surae Muscle in Human Fetuses during the Fetal Period and the Evaluation of Clinical Importance of Calcaneal Tendon

et al. 2015

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SUMMARY: It was aimed that the morphometric development of calcaneal tendon and the structures building it up in human fetuses during the fetal period be anatomically studied and that its clinical importance be evaluated. The study comprised a total of 102 fetus legs (51 human fetuses: 26 male and 25 female) whose ages varied between 15-40 gestational week, without external pathology or anomaly. The fetuses were divided in groups according to gestational weeks, trimesters and months. In the wake of the general external measurements of fetuses, leg dissection was performed. Afterwards, the morphometric parameters of gastrocnemius muscle, soleus muscle and calcaneal tendon were measured. The averages and the standard deviations of the measured parameters were determined according to gestational weeks, trimesters and months. There was a significant correlation between the measured parameters and the gestational age (p<0.001). There was no difference between sexes in terms of parameters (p>0.005). All the obtained results were discussed by making a comparison between them and the previous studies made. We are of the opinion that the data obtained in our study will be of use to the involved clinicians in the evaluation of the development of calcaneal tendon and the structures constituting it during the fetal period and in clinical studies and applications as well.

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“…Therefore, hypoxic, mucoid, lipomatous, and calcifying ossifying degeneration is described in the literature. While hypoxic and mucoid degeneration are often the result of chronic overuse and have the highest total prevalence, lipomatous degeneration is primarily the product of aging [22]. However, calcifications within the Achilles tendon as the result of an ongoing degeneration process are rather rare.…”

Section: Intratendinous Changes Tendinosismentioning

confidence: 99%

“…However, calcifications within the Achilles tendon as the result of an ongoing degeneration process are rather rare. According to histopathological studies, the different types of Achilles tendon degeneration are present in 90 % of symptomatic tendons and in up to 30 % of asymptomatic tendons [1, 20,22]. In MRI as well as ultrasound, hypoxic degeneration is visualized as a spindle-shaped thickening of the Achilles tendon [10,22,23].…”

Section: Intratendinous Changes Tendinosismentioning

confidence: 99%

Achillodynia - Radiological Imaging of Acute and Chronic Overuse Injuries of the Achilles Tendon

Syha

Springer

Ketelsen

et al. 2013

Fortschr Röntgenstr

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In the past decades the incidence of acute and chronic disorders of the Achilles tendon associated with sport-induced overuse has steadily increased. Besides acute complete or partial ruptures, achillodynia (Achilles tendon pain syndrome), which is often associated with tendon degeneration, represents the most challenging entity regarding clinical diagnostics and therapy. Therefore, the use of imaging techniques to differentiate tendon disorders and even characterize structure alterations is of growing interest. This review article discusses the potential of different imaging techniques with respect to the diagnosis of acute and chronic tendon disorders. In this context, the most commonly used imaging techniques are magnetic resonance imaging (MRI), B-mode ultrasound, and color-coded Doppler ultrasound (US). These modalities allow the detection of acute tendon ruptures and advanced chronic tendon disorders. However, the main disadvantages are still the low capabilities in the detection of early-stage degeneration and difficulties in the assessment of treatment responses during follow-up examinations. Furthermore, differentiation between chronic partial ruptures and degeneration remains challenging. The automatic contour detection and texture analysis may allow a more objective and quantitative interpretation, which might be helpful in the monitoring of tendon diseases during follow-up examinations. Other techniques to quantify tendon-specific MR properties, e.?g. based on ultrashort echo time (UTE) sequences, also seem to have great potential with respect to the precise detection of degenerative tendon disorders and their differentiation at a very early stage. Key Points: Citation Format:

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MR Imaging of Disorders of the Achilles Tendon

Cited by 227 publications

References 57 publications

Imaging of plantar fascia and Achilles injuries undertaken at the London 2012 Olympics

Imaging of plantar fascia and Achilles injuries undertaken at the London 2012 Olympics

A Study on the Structure and Morphologic Development of Calcaneal Tendon and Triceps Surae Muscle in Human Fetuses during the Fetal Period and the Evaluation of Clinical Importance of Calcaneal Tendon

Achillodynia - Radiological Imaging of Acute and Chronic Overuse Injuries of the Achilles Tendon

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