Primary study · included by 1 review

Modeling the effect of bilateral sagittal split osteotomy on posterior, superior and medial space dimensions of the temporomandibular joint: a retrospective controlled cohort study.

Hupp 2023 · Hupp Linus Christian, Verius Michael, Bertram Annika, et al. · BMC oral health · 2023

Included by

Assessment of temporomandibular joint morphological alterations after bilateral sagittal split ramus osteotomy - A systematic review and meta-analysis.

Non-Cochrane · intervention · 2026 · cited as Hupp 2023 · Table 3; Fig. 2a,2b, 3a,3b

Outcome this study informs	Pooled effect	Evidence	Certainty
Superior joint space BSSRO (post-surgery TMJ measurement) vs Pre-surgery (baseline) TMJ measurement · 1 year (long-term)	SMD 0.46 [-0.08, 1.0]	2 studies · 67 participants	GRADE not reported
Posterior joint space BSSRO (post-surgery TMJ measurement) vs Pre-surgery (baseline) TMJ measurement · Within 1 month (short-term)	SMD 0.42 [-0.05, 0.9]	2 studies · 67 participants	GRADE not reported
Superior joint space BSSRO (post-surgery TMJ measurement) vs Pre-surgery (baseline) TMJ measurement · Within 1 month (short-term)	SMD -0.35 [-1.72, 1.02]	2 studies · 67 participants	GRADE not reported
Posterior joint space BSSRO (post-surgery TMJ measurement) vs Pre-surgery (baseline) TMJ measurement · 12-18 months (long-term)	SMD 0.97 [0.61, 1.33]	2 studies · 67 participants	GRADE not reported

1 including review in total.