A 10 year follow-up study after Roux-Elmslie-Trillat treatment for cases of patellar instability

<p>Abstract</p> <p>Background</p> <p>A retrospective study concerning patients presenting with patella instability, treated using a Roux-Elmslie-Trillat reconstruction operation and followed up for 10 years following surgery, is presented.</p> <p>Methods</p> <p>Pre-operative and follow-up radiographic evaluation included the weight-bearing anteroposterior and merchant views. Evaluation was carried out using the Insall-Salvati index, sulcus and congruence angle. The Roux-Elmslie-Trillat reconstruction operation was performed on 18 patients. The clinical evaluation at follow-up was performed using the Knee-Society-Score (KSS) and Tegner-Score.</p> <p>Results</p> <p>Subjective results of the operation were classed as excellent or good in 16 of the 18 patients ten years after surgery; persistent instability of the patella was recorded in only one of the 18 patients. The majority of patients returned to the same level of sporting activity after surgery as they had participated in before injury.</p> <p>Conclusions</p> <p>The Roux-Elmslie-Trillat procedure could be recommended in cases presenting with an increased q-angle, trochlea dysplasia or failed soft tissue surgery. In the present study the majority of patients report a return to previous sporting activity ten years after surgery.</p

Sur la mesure du potentiel périodique interne des cristaux

Cet article contient l'exposé du principe d'une méthode de mesure des termes Vαβγ du développement en série de Fourier du potentiel périodique interne des cristaux (cubiques) ainsi qu'un essai de la réalisation expérimentale de cette méthode Des mesures ont été faites pour Ni, Au, Cu2O et le graphite. Les valeurs obtenues ne s'accordent pas du tout avec la théorie actuelle de la réflexion d'une onde électronique par un cristal; les auteurs indiquent dans quel sens il convient de modifier cette théorie pour obtenir des résultats en accord avec les mesures