Lag screw fixation of anterior mandibular fractures: a retrospective analysis of intraoperative and postoperative complications. 2007

Paul S Tiwana, and George M Kushner, and Brian Alpert
Pediatric Oral and Maxillofacial Surgery, Kosair Children's Hospital, School of Dentistry, University of Louisville, Louisville, KY 40202, USA. paul.tiwana@louisville.edu

OBJECTIVE To review, retrospectively, the outcomes of 102 patients who underwent lag screw technique fixation of fractures of the anterior mandible. METHODS A total of 102 consecutive, skeletally mature patients who have undergone open reduction internal fixation for fractures of the anterior mandible utilizing the lag screw technique were reviewed. All patients had a clinically mobile fracture between the mental foramina of the mandible. The patients were followed at usual postoperative intervals with shortest long-term follow-up of 2 months. Intraoperative and long-term postoperative outcomes including status of union, infection, and intraoperative surgical misadventure were recorded. RESULTS Data from the 102 patients showed that there was 1 fixation failure due to inappropriate patient selection, 1 nonunion requiring bone grafting, 1 with infected screws but with union, 1 with an infected screw and delayed union treated conservatively, and 6 with broken drills from intraoperative surgical misadventures. CONCLUSIONS Lag screw osteosynthesis of anterior mandibular fractures is a sensitive, facile, predictable, and relatively inexpensive method for internal fixation of indicated fractures. As with all methods of rigid internal fixation, most failures or complications are the result of operator judgment or technique.

UI MeSH Term Description Entries
D007431 Intraoperative Complications Complications that affect patients during surgery. They may or may not be associated with the disease for which the surgery is done, or within the same surgical procedure. Peroperative Complications,Surgical Injuries,Complication, Intraoperative,Complication, Peroperative,Injuries, Surgical,Complications, Intraoperative,Complications, Peroperative,Injury, Surgical,Intraoperative Complication,Peroperative Complication,Surgical Injury
D008137 Longitudinal Studies Studies in which variables relating to an individual or group of individuals are assessed over a period of time. Bogalusa Heart Study,California Teachers Study,Framingham Heart Study,Jackson Heart Study,Longitudinal Survey,Tuskegee Syphilis Study,Bogalusa Heart Studies,California Teachers Studies,Framingham Heart Studies,Heart Studies, Bogalusa,Heart Studies, Framingham,Heart Studies, Jackson,Heart Study, Bogalusa,Heart Study, Framingham,Heart Study, Jackson,Jackson Heart Studies,Longitudinal Study,Longitudinal Surveys,Studies, Bogalusa Heart,Studies, California Teachers,Studies, Jackson Heart,Studies, Longitudinal,Study, Bogalusa Heart,Study, California Teachers,Study, Longitudinal,Survey, Longitudinal,Surveys, Longitudinal,Syphilis Studies, Tuskegee,Syphilis Study, Tuskegee,Teachers Studies, California,Teachers Study, California,Tuskegee Syphilis Studies
D008335 Mandibular Condyle The posterior process on the ramus of the mandible composed of two parts: a superior part, the articular portion, and an inferior part, the condylar neck. Condyle, Mandibular,Condyles, Mandibular,Mandibular Condyles
D008337 Mandibular Fractures Fractures of the lower jaw. Fracture, Mandibular,Fractures, Mandibular,Mandibular Fracture
D011183 Postoperative Complications Pathologic processes that affect patients after a surgical procedure. They may or may not be related to the disease for which the surgery was done, and they may or may not be direct results of the surgery. Complication, Postoperative,Complications, Postoperative,Postoperative Complication
D001863 Bone Screws Specialized devices used in ORTHOPEDIC SURGERY to repair bone fractures. Bone Screw,Screw, Bone,Screws, Bone
D002680 Chin The anatomical frontal portion of the mandible, also known as the mentum, that contains the line of fusion of the two separate halves of the mandible (symphysis menti). This line of fusion divides inferiorly to enclose a triangular area called the mental protuberance. On each side, inferior to the second premolar tooth, is the mental foramen for the passage of blood vessels and a nerve. Mental Region,Mentum
D004868 Equipment Failure Failure of equipment to perform to standard. The failure may be due to defects or improper use. Defects, Equipment,Device Failure,Failure, Equipment,Malfunction, Equipment,Medical Device Failure,Misuse, Equipment,Device Failure, Medical,Device Failures, Medical,Failure, Medical Device,Failures, Medical Device,Defect, Equipment,Device Failures,Equipment Defect,Equipment Defects,Equipment Failures,Equipment Malfunction,Equipment Malfunctions,Equipment Misuse,Equipment Misuses,Failure, Device,Failures, Device,Failures, Equipment,Malfunctions, Equipment,Misuses, Equipment
D005500 Follow-Up Studies Studies in which individuals or populations are followed to assess the outcome of exposures, procedures, or effects of a characteristic, e.g., occurrence of disease. Followup Studies,Follow Up Studies,Follow-Up Study,Followup Study,Studies, Follow-Up,Studies, Followup,Study, Follow-Up,Study, Followup
D005593 Fracture Fixation, Internal The use of internal devices (metal plates, nails, rods, etc.) to hold the position of a fracture in proper alignment. Osteosynthesis, Fracture,Fixation, Internal Fracture,Fixations, Internal Fracture,Fracture Fixations, Internal,Fracture Osteosyntheses,Fracture Osteosynthesis,Internal Fracture Fixation,Internal Fracture Fixations,Osteosyntheses, Fracture

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