Post-BSSO condylar position stability: a comparison of miniplate and lag screw fixation.
BMC Oral Health
; 24(1): 728, 2024 Jun 25.
Article
in En
| MEDLINE
| ID: mdl-38918762
ABSTRACT
BACKGROUND:
This study was conceived to assess the postoperative stability of condylar position following fixation with miniplates and lag screws after bilateral sagittal split osteotomy (BSSO).METHODS:
This retrospective study included a cohort of 20 patients undergoing BSSO using the Obwegeser-Dal Pont modification. The bony segments were stabilized using either miniplates with two 2.0-mm monocortical screws per segment or three 2.0-mm bicortical lag screws along the mandible's superior border. Pre- and postoperative (7-day interval) spiral computed tomography scans were conducted to assess skeletal changes across both groups. Data analysis employed Wilcoxon signed-rank and Wilcoxon rank-sum tests (α = 0.05).RESULTS:
No statistically significant difference was observed between the pre-and postoperative condylar position parameters (P>0.05). However, the lag screw group showed a marginal significant increase in the left condyle's angulation (preoperative 24.83 ± 6.37 vs. postoperative 32.5 ± 4.93; P = 0.04). Changes in condylar height, length, and width were not statistically significant before and after BSSO in either groups (P>0.05). Nor was any statistically significant difference found between the miniplates and lag screws groups regarding condylar position parameters (P>0.05).CONCLUSION:
The results indicated that both lag screw and miniplate fixation methods can be effectively employed in BSSO procedures without impacting condylar position parameters. Thus, either fixation method can be chosen depending on factors such as the surgeon's preference and clinical outcomes.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Bone Plates
/
Bone Screws
/
Osteotomy, Sagittal Split Ramus
/
Mandibular Condyle
Limits:
Adult
/
Female
/
Humans
/
Male
Language:
En
Journal:
BMC Oral Health
Journal subject:
ODONTOLOGIA
Year:
2024
Type:
Article
Affiliation country:
Iran