Power-Driven Instrumentation for Intermaxillary Fixation and Miniplate Screw Fixation in Maxillofacial Trauma: A Prospective Observational Study
摘要
Despite technological advances in maxillofacial surgery, arch bar placement and screw insertion remain time-consuming procedures with ergonomic challenges. This study evaluates power-driven wire twisters and screwdrivers in the management of mandibular fractures.
Materials and MethodsIn this prospective observational study, 30 patients with mandibular fractures underwent intermaxillary fixation (IMF) using Erich arch bars and open reduction and internal fixation with titanium miniplates. A commercial powered screwdriver was used for screw insertion, which was modified for use as wire twister. Operative time and ergonomics were assessed for both techniques. Wire breakage, pain, operator and patient injury was assessed for IMF placement. Stripping or loosening of the screw was assessed in screw insertion.
ResultsMean duration for arch bar placement was 44.4 ± 10.6 min. No incidence of wire fracture occured. 70% patients reported no pain during the procedure while the other 20% had VAS scores of 1–2. In plate fixation, the mean screw insertion time was 20.4 ± 4.9 s, with the longest mean insertion times in symphysis fractures (23.5 s) due to thicker cortical bone. Plating location significantly affected screw insertion time (p = 0.045) and ease of instrumentation (p = 0.034). No instances of bone stripping or screw loosening were reported.
ConclusionPower-driven instrumentation significantly reduces operative time for arch bar placement and maintains precision in screw fixation while preventing complications like wire fracture and bone stripping. The advantages include reduced operator fatigue, improved ergonomics, and enhanced patient comfort. Power-driven instrumentation represents a valuable advancement in the fundamental techniques of maxillofacial trauma management.