Clinical analysis of arthroscopy used in the diagnosis and treatment of synovial chondromatosis of the temporomandibular joint / 华西口腔医学杂志

OBJECTIVES@#To evaluate the value of arthroscopy in the diagnosis and treatment of synovial chondromatosis of the temporomandibular joint (TMJSC).@*METHODS@#The cases of 16 patients preliminarily diagnosed with TMJSC by magnetic resonance imaging (MRI) from July 2011 to December 2018 were analyzed retrospectively. If the diagnosis was confirmed by arthroscopy, the opening operation was performed. The preoperative MRI, arthroscopy and opening operation, postoperative pathology and postoperative MRI of confirmed cases were analyzed, and clinical follow-up was performed to evaluate the curative effect of open surgery. The degree of mouth opening and visual analogue scale (VAS) scores for pain pre-operation and during follow-up of the confirmed cases were analyzed by @*RESULTS@#Fourteen cases of TMJSC were diagnosed by arthroscopy, consistent with the postoperative pathological diagnosis. Postoperative MRI examination showed that articular cavity lesions basically disappeared. Ten patients with synovial chondromatosis were followed-up (follow-up rate, 71.4%) from 6 months to 7 years and 8 months (average follow-up time, 17.6 months); no recurrence was found, and clinical symptoms improved by varying degrees. Before operation and at follow-up, @*CONCLUSIONS@#Arthroscopy is essential in the diagnosis and treatment of TMJ synovial chondromatosis.

Retrospective study of temporomandibular joint dislocation by surgical treatment / 华西口腔医学杂志

<p><b>OBJECTIVE</b>This study aimed to retrospectively analyze temporomandibular joint dislocation by surgical treatment and evaluate the treatment effect.</p><p><b>METHODS</b>From May 2012 to April 2016, a total of 17 cases of temporomandibular joint dislocation were surgically treated, including 8 cases of irreducible dislocation (ID) and 9 cases of recurrent dislocation (RD). Synovial injection of sclerosing agent by arthroscope was performed in 5 cases, 9 sides; augmentation of the articular eminence by titanium plate implantation was performed in 7 cases, 12 sides; iliac bone transplantation was performed in 1 case, 1 side; Medpore implantation was performed in 3 cases, 6 sides; and eminectomy and capsular tightening were performed in 1 case, 2 sides. Follow-up was conducted 1-5 years after the operation, and the success rate statistics was obtained.</p><p><b>RESULTS</b>The cure rate of synovial injection of sclerosing agent by arthroscope was 77.8% (7/9), and the effective rate was 100%. The cure rate of titanium plate implantation was 75% (9/12), and the effective rate was 100%. The cure rates of augmentation of the articular eminence by Medpore implantation (6/6), iliac bone graft (1/1), and eminectomy (2/2) were 100%.</p><p><b>CONCLUSIONS</b>The surgical method of temporomandibular joint dislocation was selected according to the state of the patients. The postoperative recurrent patients were advised to undergo augmentation of the articular eminence by Medpore implantation, which offered a reduced chance of recurrence and relatively less injury, as well as a simple operative method.</p>