Intraoperative comparison of single- and double-puncture techniques in temporomandibular joint arthrocentesis

The objective of this study was to compare techniques for temporomandibular joint (TMJ) arthrocentesis intraoperatively and to determine the ease of performance of these techniques for the physician. A total of 33 TMJ treatments were done using single-puncture arthrocentesis (SPA) type 1, SPA type 2, and double-puncture arthrocentesis (DPA) (n = 11 in each treatment group) between December 2013 and December 2017. A retrospective analysis of the duration of the procedure (minutes), occurrence of complications, number of cannula relocations, and ease of the procedure was performed. Ease of the procedure was measured using a Likert-type visual analogue scale (VAS; 0-10). All measurement variables were recorded intraoperatively, and related data were analyzed statistically. Significant differences were found between SPA type 2 and the other techniques in terms of procedure duration and ease of the procedure (P < 0.05). No significant differences were found in the occurrence of complications or number of cannula relocations between the techniques (P > 0.05). Compared to the other TMJ arthrocentesis techniques, SPA type 2 is easier, and physicians can perform it in a shorter time.