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COMPARATIVE STUDY
JOURNAL ARTICLE
Visually guided irrigation for patients with symptomatic internal derangement of the temporomandibular joint: a preliminary report.
OBJECTIVE: Visually guided irrigation (VGIR) is simple joint irrigation with minimally invasive intracapsular inspection through the use of a thin arthroscope. The aims of the present study were to develop VGIR for the superior joint compartment of the temporomandibular joint (TMJ) by using a 1.2-mm-diameter rod-lens arthroscope and to examine the short-term clinical outcomes. The correlation between the clinical outcome of VGIR of the TMJ and intracapsular findings was also evaluated.
STUDY DESIGN: Twenty patients who underwent VGIR for symptomatic internal derangement of the TMJ (n = 20) were enrolled in this study. The clinical outcome of VGIR was evaluated in terms of the improvement in the painless range of mandibular motion (ROM: interincisal distance in millimeters), and functional jaw pain was evaluated by using a visual analog scale (VAS) ranging from 0 to 100. Painless ROM and VAS scores 6 months postoperatively were compared with the preoperative data. A good clinical outcome was defined as an increased ROM (ROM > 38 mm) and a decreased VAS score (VAS score < 20%, and <60% of the preoperative level). With respect to these criteria, all joints were classified into either good clinical outcome (GO) or poor clinical outcome (PO) groups. The difference in the distribution of the arthroscopic findings obtained during VGIR, with respect to severity, was analyzed between the GO and PO groups.
RESULTS: None of the 20 patients experienced any serious local or systemic complications, including the breakage of instruments. We were able to perform a reliable intracapsular diagnosis during VGIR. Sixteen of 20 patients (80%) had significant improvements in postoperative painless ROM and the VAS score of functional pain, thereby being classified into the GO group. The distribution of the severity of intracapsular findings did not differ significantly between the GO group and the PO group.
CONCLUSIONS: VGIR is useful for the treatment and diagnosis of internally deranged TMJs. These data suggest that the clinical outcome of TMJ irrigation is not related to the intracapsular condition of the superior joint compartment.
STUDY DESIGN: Twenty patients who underwent VGIR for symptomatic internal derangement of the TMJ (n = 20) were enrolled in this study. The clinical outcome of VGIR was evaluated in terms of the improvement in the painless range of mandibular motion (ROM: interincisal distance in millimeters), and functional jaw pain was evaluated by using a visual analog scale (VAS) ranging from 0 to 100. Painless ROM and VAS scores 6 months postoperatively were compared with the preoperative data. A good clinical outcome was defined as an increased ROM (ROM > 38 mm) and a decreased VAS score (VAS score < 20%, and <60% of the preoperative level). With respect to these criteria, all joints were classified into either good clinical outcome (GO) or poor clinical outcome (PO) groups. The difference in the distribution of the arthroscopic findings obtained during VGIR, with respect to severity, was analyzed between the GO and PO groups.
RESULTS: None of the 20 patients experienced any serious local or systemic complications, including the breakage of instruments. We were able to perform a reliable intracapsular diagnosis during VGIR. Sixteen of 20 patients (80%) had significant improvements in postoperative painless ROM and the VAS score of functional pain, thereby being classified into the GO group. The distribution of the severity of intracapsular findings did not differ significantly between the GO group and the PO group.
CONCLUSIONS: VGIR is useful for the treatment and diagnosis of internally deranged TMJs. These data suggest that the clinical outcome of TMJ irrigation is not related to the intracapsular condition of the superior joint compartment.
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