Clinical PaperTMJ DisordersAnalysis of magnetic resonance imaging characteristics and pain in temporomandibular joints with and without degenerative changes of the condyle☆
Section snippets
Material and methods
This study was carried out with the approval of the FOP/UNICAMP Ethics Committee (096/2005) and informed consent was obtained from all patients. The study group comprised 81 males and females selected from patients that underwent MRI in a private clinic between 2001 and 2005.
The scans were performed using a Signa Horizon system model scanner (General Electric, Milwaukee, WI, USA), at a magnetic field magnitude of 1.5 T, using a bilateral radiofrequency surface coil of 6.5 × 6.5 cm. Images were
Results
This study assessed MRI characteristics and TMJ pain in 81 patients (162 TMJs), 69 (86%) female and 12 (14%) male. The mean age was 40.8 years (range 15-76 years). Forty-two patients (52%) reported unilateral TMJ pain, 17 (21%) bilateral TMJ pain, and 22 (27%) reported no joint pain. Out of the 22 patients without joint pain, 18 reported muscle pain and/or joint sounds, while 4 were totally asymptomatic.
There were 58 TMJs without and 104 with degenerative changes of the condyle. Osteophytes
Discussion
In this retrospective study, MRI characteristics and TMJ pain were compared between 104 TMJs with and 58 TMJs without condylar bony changes. In agreement with a previous report11, osteophytes and erosion were the most prevalent bony changes observed on MRI (Fig. 1).
In the present study, degenerative bony changes were significantly related to DDwoR when compared to DDwR or absence of DD (Table 2). This result complies with all previous studies1, 4, 6, 8, 11, 26, 29, 43 but one36. These data
Acknowledgement
We are thankful to Dr. Delfin Gonzalez Miranda, Delfin Clinic, for access to MR images.
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2020, Journal of Cranio-Maxillofacial SurgeryCitation Excerpt :Most of the patients diagnosed with ID and DDwoR present dysfunction symptoms with or without chronic joint pain. As the disease progresses, further degeneration is observed in imaging tests (Campos et al., 2008; Koh et al., 2009) and direct arthroscopic inspection (Machoň et al., 2012). McCain and Hossameldin (2011) were the first to describe the technique of arthroscopic disc fixation, placing titanium screws and, later, resorbable pins.
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This study was supported by grants from FAPESP.