Characterization of Patients With Disc Displacement Without Reduction Unresponsive to Nonsurgical Treatment: A Preliminary Study

Arthrocentesis for the treatment of temporomandibular joint closed lock: a review article

“…Should patients with TMJ CL undergo a preoperative trial of non-surgical treatment, and how long should be this trial? Do pretreatment findings of pain-free mouth opening (<30 mm) coupled with unchanged disk shape during mouth opening 30 indicate immediate treatment with arthrocentesis? Is there an ideal volume for irrigating the UJC?…”

Transformation of temporomandibular joint disc configuration in internal derangement patients using magnetic resonance imaging

“…The disc configuration of TMJs from each group was determined by the author R.A. in both the closed and open mouth positions without knowing the prior disc position diagnosis. For this study, the disc configurations were classified in 4 types modified from previous studies [,,–,–]: biconcave, biplanar, convex, and folded (Fig. ).…”

“…The information of the pattern of disc changing configuration during open mouth can be useful for treatment planning and prognosis in patients with TMJ ID. For example, the transformation pattern of disc configuration during mouth opening shown on MR image can provide the prognosis of nonsurgical treatment in the patient having ADWo []. The patient with ADWo showing the stuck disc and no transformation disc shape from closed to open mouth position on MR image will not respond well to nonsurgical conservative treatment.…”

Can MRI Observations Predict Treatment Outcome of Lavage in Patients with Painful TMJ Disc Displacement without Reduction?

“…Other findings such as hard tissue changes and joint effusion can also be found on MRI of the TMJ. Prognostic factors for the success or failure of lavage to relieve pain have been the subject of many investigations, with conflicting results [8][9][10][11][12][13]. Diagnoses of internal derangement and osteoarthritis have not been found to be linked to the outcome of arthrocentesis regarding TMJ pain and mandibular range of motion [9].…”

“…This agrees with the observations of Smolka and Iizuka [11], who found that preoperative arthroscopic findings did not seem to correlate with treatment outcome. A reduced pain-free mouth opening (< 30 mm) before treatment together with MRI confirmation of a stuck disc and unchanged disc shape during mouth opening is reported to be a prognostic factor for no response to lavage [10]. Patients with TMJ effusion have been found to respond less favourably to arthrocentesis and hydraulic distention [12].…”