Quels critères de retour au sport après tendinopathie ?

in Julia, M.; Hirt, D.; Croisier, Jean-Louis (Eds.) et al Tendon et jonction tendino-musculaire - De la biomécanique aux applications thérapeutiques (2011)

Prévention des lésions tendineuses : mythe ou réalité ?

in Julia, M.; Hirt, D.; Croisier, Jean-Louis (Eds.) et al Tendon et jonction tendino-musculaire - De la biomécanique aux applications thérapeutiques (2011)

Facteurs plaquettaires et traitement des lésions tendino-musculaires

in Julia, Marc; Hirt, Daniel; Croisier, Jean-Louis (Eds.) et al Tendon et jonction tendinomusculaire (2011)

Platelet-rich plasma (PRP) and tendon healing: animal model

in British Journal of Sports Medicine (2011, February), 45(2), 1

Introduction: The tendon is a tissue which does not heal easily. Recently, several studies have demonstrated the positive effects of platelets on the healing process of tendons. A local injection of ... [more ▼]

Introduction: The tendon is a tissue which does not heal easily. Recently, several studies have demonstrated the positive effects of platelets on the healing process of tendons. A local injection of platelet–rich plasma (PRP), which releases in situ many growth factors, has the potentiality to enhance the tendon healing process. The aim of our experiment was to ascertain by an original mechanical measure whether the use of PRP was of interest for accelerating the healing process of rats’ Achilles tendons after surgical induced lesion. Methods: A 5mm defect was surgically induced in 90 rats’ Achilles tendon. Rats were divided into 2 groups of 45: (A) control (no treatment) and (B) PRP treatment. Rats of group B received a PRP injection in situ after the surgery. Afterwards, rats of both groups were placed in their cages without immobilization. After 5, 15 and 30 days, 10 traumatized Achilles tendons of each group were dissected and removed. Immediately after sampling, tendons were submitted to a biomechanical tensile test up to rupture, using a “Cryo-jaw”. After that, transcriptomic analyses were made on the tendon samples, to study the expression of type III collagen, matrix metalloproteases and tenomodulin. A hydroxyproline dosage was done to quantify the collagen in the tendon during its healing process. Tendons of the 15 remaining rats of each group were subjected to a histological study, respectively at day 5, 15 and 30 (5 rats for each time). Results: We demonstrated that the force necessary to induce tendon rupture during biomechanical tensile test study was greater for tendons which had been submitted to an injection of PRP compared to the control group: +19% (day 5), +30% (day 15) and +43% (day 30). Histological study showed that PRP could enhance cells proliferation, angiogenesis and collagen organisation. Our biochemical analyses did not explain beneficial effects of PRP. Indeed, there was no significant difference neither between the expression of different studied genes, nor in the quantity of hydroxyproline between both groups. Conclusion: This experimentation has shown that a PRP injection could accelerate the tendons healing process and improve its quality. [less ▲]

L’image du mois. Exostose douloureuse de la métaphyse distale du fémur

in Revue Médicale de Liège (2011), 66(1), 4-6

Cartilaginous exostosis, a frequent benign bone tumour, develops mainly during the growth. Often asymptomatic, it can be painful, compressive or unsightly, involving a surgical treatment. The diagnostic ... [more ▼]

Cartilaginous exostosis, a frequent benign bone tumour, develops mainly during the growth. Often asymptomatic, it can be painful, compressive or unsightly, involving a surgical treatment. The diagnostic is based on radiological imaging. At adulthood, pains, a growth of the exostosis volume or characteristic imaging modifications lead to a resection in order to exclude a sarcomatous transformation. We report the case of a patient showing a painful exostosis of the femur distal metaphysis. [less ▲]

Traumatologie du golf

Learning material (2011)

Fractures de fatigue

Learning material (2011)

Pubalgie du sportif

Learning material (2011)

Epaules douloureuses et instables

Learning material (2011)

Cou de pied douloureux de l'enfant sportif

Learning material (2011)