At a mean of 4.4 years postoperatively, we found that open synovectomy and removal of loose bodies for the treatment of primary synovial osteochondromatosis of the hip is a reliable procedure that can effectively relieve symptoms. Our results also indicated that synovial osteochondromatosis may recur in patients with extensive involvement who are treated with synovectomy alone without dislocation of the hip; however, surgical complications are more likely to occur in patients managed with anterior dislocation of the hip and synovectomy.
The purpose of this study is to evaluate the efficacy of the computed tomography (CT)-guided percutaneous radiofrequency thermoablation (PRT) method with a minimum of 2 years follow-up. Twenty-eight patients who were followed for more than 2 years among 35 patients who underwent CT-guided PRT between April 1999 and May 2005 were included in this study. The mean age was 24.5 years (range 7-55 years) and the mean follow-up period was 40.1 months (range 24-66 months). With a radiofrequency electrode, the lesion was heated to 80°C or 90°C for 6.5 mins (range 3-9 mins). Clinical success was assessed at the out-patient clinic by symptoms and radiographs. Twenty-six patients (90%) experienced a total loss of symptoms and additional PRT also relieved the ongoing symptoms in all of the recurrent patients. PRT appears to be a safe and effective method for treating osteoid osteoma and is also effective in recurrent cases. This treatment modality is a minimally invasive procedure and is a good alternative to open surgical treatment.Résumé Le propos de cette étude est d'évaluer l'efficacité de cette méthode avec un minimum de deux ans de recul. 28 patients ont été suivis pendant deux ans parmi 35 patients ayant bénéficié entre avril 99 et mai 2005 d'une ablation d'ostéome ostéoide par radio fréquence, guidée sous scanner. L'âge moyen était de 24,5 ans (7 à 55) et le suivi moyen de 40,1 mois (24 à 66). L'électrode permet de chauffer la lésion de 80 à 90°C en moyenne pendant 6,5 minutes (de 3 à 9). 90% des patients (26 à 28) ont pu, grâce à cette méthode, avoir une disparition totale des symptômes et pour ceux qui gardaient une symptomatologie persistante ou récurrente, un geste complémentaire de thermo régulation a été réalisé. Cette méthode apparaît comme une méthode sûre et efficace dans le traitement des ostéomes ostéoides et également dans les récidives. Ce traitement est un traitement mini invasif tout a fait alternatif avec le traitement par voie chirurgicale sanglante.
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