RESUMO
A few articles in the literature studied the sequelle of the withdrawal of the extensor system after reconstruction of the anterior cruciate ligament by Kenneth JONES methods. The goal of this work was to value these aftermaths clinics, radiological and isokinetics. It is a retrospective study of 113 patients operated in the institute of orthopedics MT KASSAB with a reconstruction of the anterior cruciate ligament by Kenneth JONES technique under arthroscopy. These patients were seen in order to appreciate the functional results, arthrometric [by Telos], isokinetic [by an isokinetic dynamometer [BIODEX]] and radiological [patellar height, calcifications, femoro-patellar osteoarthritis and the positioning of femoral and tibial tunnels by Aglietti's and Locker-Vielpeau's index]. At a middle review of 32 months: 36 patients [32%] had some pains, 33 patients had dysaesthesia to the external face of the knee or one gene to the level of the withdrawal site. The variation of the patellar height was not meaningful [p = 0.052 a limit value] and it was not correlated to the occurence of anterior pain [p = 0.38]. Eleven calcifications of the patellar tendon were noted, six to the level of his patellar insertion and five in full tendon. None of these calcifications did require a surgery. Three patients had a pinch of the femoro-patellar spacing with osteophytes. The postoperative amyotrophy of quadriceps was 0.83 cm. The muscular deficit of quadriceps was lower to 7% compared to the controlateral side. Thirteen sportsmen had accidents of isokinetic curves accompanied by pains. The withdrawal of the extensor system is delicate dragging a fragilisation of this system with a risk of fracture. The essential opposition point between the withdrawal of a patellar tendon and the one of the ischiojambier rest the post-operative morbidity. It is classic to say that the patellar withdrawal is source of problems that they are about previous pains, aftermaths dysaesthesia, cartilaginous lesion, patellar lowering or muscular deficit of quadriceps. The aftermaths on the site of withdrawal of the patellar tendon are radiologically frequent but the most often asymptomatic