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Comparison of Three Osteotomy Techniques in Temporomandibular Joint Ankylosis Surgery
Sponsor: Ankara University
Summary
Temporomandibular joint (TMJ) ankylosis is a condition in which the jaw joint becomes partially or completely fused, resulting in restricted mouth opening and difficulties with chewing, speaking, and daily activities. Surgical treatment aims to remove the ankylotic bone and restore normal jaw movement. Different bone-cutting devices can be used during surgery, but their effects on surgical efficiency, postoperative recovery, and quality of life may vary. This prospective, non-randomized comparative clinical study aimed to compare three osteotomy techniques used in TMJ ankylosis surgery: piezoelectric surgery, an ultrasonic bone scalpel, and a conventional reciprocating saw. A total of 32 patients undergoing TMJ ankylosis surgery were included. Eleven patients underwent surgery using a piezoelectric device, eleven using an ultrasonic bone scalpel, and ten using a conventional reciprocating saw. All surgical procedures were performed by the same surgeon under general anesthesia using a standardized surgical protocol. The primary outcome was osteotomy time, measured during surgery. Secondary outcomes included total operative time, intraoperative blood loss, maximum mouth opening, postoperative pain, facial nerve function, and patient-reported quality of life. Facial nerve function was evaluated using the House-Brackmann grading system and the Sunnybrook Facial Grading System. Quality of life was assessed using the SF-12, WHOQOL-BREF, OHIP-14, and UW-QOL questionnaires. Patients were followed for six months after surgery to evaluate functional recovery and changes in quality of life. The study aimed to determine whether the choice of osteotomy device was associated with differences in surgical efficiency, early postoperative recovery, and patient-reported outcomes.
Official title: Comparison of Ultrasonic Bone Scalpel, Piezoelectric Surgery and Conventional Reciprocating Saw in Temporomandibular Joint Ankylosis Surgery: Surgical Efficiency, Functional Recovery and Patient-Reported Outcomes
Key Details
Gender
All
Age Range
Any - Any
Study Type
INTERVENTIONAL
Enrollment
32
Start Date
2022-04-20
Completion Date
2026-01-20
Last Updated
2026-10-20
Healthy Volunteers
No
Conditions
Interventions
Piezoelectric Surgical Device
A piezoelectric surgical device (Mectron Medical Technology, Italy) was used to perform osteotomy during temporomandibular joint ankylosis surgery. The device uses ultrasonic microvibrations to selectively cut mineralized bone tissue. Osteotomy was performed to facilitate removal of the ankylotic bone mass while minimizing injury to adjacent soft tissues. Eleven patients underwent surgery using this device.
Ultrasonic Bone Scalpel
An ultrasonic bone scalpel (BoneScalpel, Misonix Inc., USA) was used to perform osteotomy during temporomandibular joint ankylosis surgery. The device uses ultrasonic vibrations for bone cutting and was applied to resect the ankylotic bone mass. Eleven patients underwent surgery using this device.
Conventional Reciprocating Saw
A conventional reciprocating saw (S-8 R, W\&H, Austria) was used to perform osteotomy during temporomandibular joint ankylosis surgery. The device uses a mechanically driven reciprocating blade to cut bone and facilitate resection of the ankylotic mass. Ten patients underwent surgery using this device.
Locations (1)
Ankara University Faculty of Dentistry
Ankara, Ankara, Turkey (Türkiye)