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Int J Oral Maxillofac Surg. 2019 Apr;48(4):540-545. doi: 10.1016/j.ijom.2018.09.002. Epub 2018 Oct 2.

Ultrasound-guided versus blind temporomandibular joint injections: a pilot cadaveric evaluation.

Author information

1
Department of Oral and Maxillofacial Surgery, Yonsei University College of Dentistry, Seoul, Republic of Korea.
2
Department of Anatomy, Yonsei University College of Medicine, Seoul, Republic of Korea.
3
Department of Anesthesiology and Pain Medicine, Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea.
4
Department of Anatomy, Yonsei University College of Medicine, Seoul, Republic of Korea. Electronic address: yanghm@yuhs.ac.
5
Department of Anesthesiology and Pain Medicine, Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea. Electronic address: tessar@yuhs.ac.

Abstract

Temporomandibular disorders are painful conditions that require precise injection therapy in selected patients. This pilot cadaveric study was undertaken to compare the accuracy of temporomandibular joint (TMJ) injection between the anatomical landmark-based (blind) technique and an ultrasound-guided technique. TMJ injections using the blind technique or the ultrasound-guided technique were performed in 10 non-embalmed cadavers. After dissection, the accuracy of the TMJ injections was found to be significantly greater for the ultrasound-guided injections than for the blind technique (blind 55% vs. ultrasound 95%, P=0.008). For injections into the upper joint space of the TMJ, the success rate of the injection was comparable for the two techniques (blind 80% vs. ultrasound 100%, P=0.474). However, ultrasound-guided injections into the lower joint space had a much higher success rate than the blind technique (blind 30% vs. ultrasound 90%, P=0.020). The blind technique was associated with a considerable proportion of failed or inappropriate injections, especially for lower joint space injections. Ultrasound-guided TMJ injections were accomplished with a higher accuracy than the conventional blind technique, especially in the case of injections targeting the lower joint space of the TMJ.

KEYWORDS:

articular; cadaver; cartilage; chronic pain; injections; intra-articular; temporomandibular joint; ultrasonography

PMID:
30287106
DOI:
10.1016/j.ijom.2018.09.002

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