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Comparison of Ultrasound-Guided Versus Traditional Landmark-Based Joint Lavage and Intra-Articular Injection for TMD:
Fangfang Xu1,2,3, Hao Cui1,2,3, Tingwei Han1,2,3
1Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, China.
Oral Diseases
|April 13, 2026
Summary
Ultrasound-guided temporomandibular joint (TMJ) lavage and injection offers improved precision for treating temporomandibular disorders (TMD). This minimally invasive technique enhances pain relief and joint function compared to traditional methods.
Area of Science:
- Orthopedics
- Radiology
- Pain Management
Background:
- Temporomandibular disorders (TMD) affect joint function and cause pain.
- Traditional treatments for TMD involve lavage and intra-articular injections, with varying success rates.
- Minimally invasive techniques are sought to improve treatment efficacy and patient outcomes.
Purpose of the Study:
- To compare the clinical outcomes of ultrasound-guided TMJ lavage and injection versus traditional methods for TMD treatment.
- To evaluate the precision and effectiveness of ultrasound guidance in TMJ interventions.
- To provide insights for optimizing TMD clinical management.
Main Methods:
- Forty patients with TMD were randomized into two groups: traditional TMJ lavage/injection and ultrasound-guided TMJ lavage/injection.
- Immediate postoperative MRI was used to assess joint cavity injection success.
- Clinical outcomes including pain relief and maximum mouth opening were evaluated at 3 and 7 days post-procedure.
Main Results:
- Ultrasound guidance significantly reduced needle attempts (p < 0.01).
- The ultrasound-guided group showed superior success in inferior joint cavity injections (p < 0.05) and better short-term pain relief and mouth opening (p < 0.05).
- No significant differences in complications or long-term outcomes were observed between groups.
Conclusions:
- Ultrasound-guided TMJ lavage and injection is a precise and minimally invasive approach for TMD.
- This technique demonstrates potential for improved pain relief and joint function in the short term.
- Ultrasound guidance offers a valuable advancement in the treatment of temporomandibular disorders.

