Is arthrocentesis plus platelet-rich plasma superior to arthrocentesis plus hyaluronic acid for the treatment of temporomandibular joint osteoarthritis: a randomized clinical trial

S Cömert Kiliç, M Güngörmüş
International Journal of Oral and Maxillofacial Surgery 2016, 45 (12): 1538-1544
A randomized clinical trial was implemented in adult patients with temporomandibular joint osteoarthritis (TMJ OA). The sample comprised 49 osteoarthritic joints in 31 consecutive patients. Patients were divided randomly into two groups according to the treatment technique applied: the platelet-rich plasma (PRP) group patients underwent initial arthrocentesis plus PRP injection and then four consecutive PRP injections; the hyaluronic acid (HA) group patients underwent one session of arthrocentesis plus HA injection. The predictor variable was the treatment technique. The outcome variables included visual analogue scale (VAS) evaluations and maximum inter-incisal opening (MIO) measurements. Outcome variables were recorded preoperatively and at 12 months postoperative. Descriptive and bivariate statistics were computed and significance was set at P<0.05. The PRP group included 32 joints in 18 subjects, and the HA group included 17 joints in 13 subjects. No statistically significant difference was observed between the groups for any of the changes in VAS parameters or MIO measurements. Both treatment techniques resulted in significant clinical improvements in all VAS parameters and painless MIO. These findings suggest that arthrocentesis plus PRP injections is not superior to arthrocentesis plus a single HA injection; thus PRP injection should not be considered as the first line treatment. Arthrocentesis plus HA injection would appear to be more acceptable for patients.

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