Mandibular condylar displacement and the associated factors following intraoral vertical ramus osteotomy

Nagata, Yuki; Moritani, Norifumi; Amano, Katsuhiko; Arimura, Yuki; Nakatsuji, Kazuki; Kato, Soma; Mikami, Ayaka; Matsumura, Tatsushi; Iida, Seiji

doi:10.1016/j.ajoms.2023.01.005

Cited by 1 publication

(1 citation statement)

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“…These findings are consistent with the results of Huang et al’s study, where 6 months post-surgery, the anterior joint space exhibited no significant change while the posterior joint space increased 17 . Nagata et al 18 also reported on the movement of the condyle according to overall postoperative time changes after IVRO. Similar to this study, it exhibited an immediate increase after surgery that gradually recovered over time.…”

Section: Discussionmentioning

confidence: 99%

Volumetric changes in temporomandibular joint space following trans-oral vertical ramus osteotomy in patients with mandibular prognathism: a one-year follow-up study

Kim,

Yong,

Kim

et al. 2024

Sci Rep

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This study measured and analyzed chronological changes in temporomandibular joint space volume by compartment following transoral vertical ramus osteotomy (TOVRO) using reconstructed 3-dimensional (3D) images of patients with mandibular prognathism. It included 70 joints of 35 patients who underwent TOVRO between January 2018 and December 2021. Computed tomography (CT) or cone-beam CT (CBCT) was performed before surgery (T0) and at 3 days (T1), 6 months (T2), and 12 months postoperatively (T3). These scans were then analyzed using 3D software. The volumes of the overall (Vjs), anterior (Vajs), posterior (Vpjs), medial (Vmjs), and lateral (Vljs) joint spaces were calculated at each time point. A linear mixed model and repeated-measures covariance pattern with unstructured covariance were used to evaluate significant changes in joint space volume over time. Vjs significantly increased to 134.54 ± 34.28 mm3 at T3 compared to T0 (p < 0.001). Vpjas and Vljs increased by 130.72 ± 10.07 mm3 and 109.98 ± 7.52 mm3 at T3 compared to T0, respectively (p < 0.001). However, no significant difference was observed between T0 and T2 in Vajs and Vmjs (p = 0.9999). The observed volume increases in Vpjs and Vljs appeared to contribute to the overall Vjs increase.

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Section: Discussionmentioning

confidence: 99%