Barry Conor P, Kearns Gerard J
Department of Oral and Maxillofacial Surgery, Mid Western Regional Hospital, Limerick, Ireland.
J Oral Maxillofac Surg. 2007 Aug;65(8):1544-9. doi: 10.1016/j.joms.2006.10.069.
To determine the complication rate for patients presenting with isolated mandibular angle fractures treated by open reduction and internal fixation using a single superior border miniplate technique.
This is a retrospective study of consecutive patients with isolated mandibular angle fractures treated using a specific protocol at a Regional Oral and Maxillofacial Department between January 1998 and December 2004. Patient demographics, fracture etiology, length of hospital stay, removal of third molar, and postoperative complications were recorded. Preoperative and postoperative inferior alveolar nerve function was recorded. Objective sensory testing and patient interviews were conducted to determine the incidence of postoperative sensory deficit.
The study population included 50 patients presenting with isolated mandibular angle fractures, 6 patients (12%) experienced complications requiring bone plate removal. These complications were minor and occurred after fracture healing as follows: 4 patients (8%) experienced superficial soft tissue infection associated with the bone plate, treated with oral antibiotics, 1 patient (2%) experienced bone plate exposure, and a further patient (2%) presented with a fractured bone plate. All 6 patients (12%) were treated by bone plate removal under general anesthesia as elective day case surgery. Thirty-nine (78%) patients had long-term sensory follow-up, mean 37 months (2 to 84 months). Permanent inferior alveolar sensory deficit (>12 months) was present in 4 (8%). Five of 26 (19%) patients with normal postinjury/preoperative sensory function had a postoperative sensory deficit. All patients in this group reported recovery of normal sensation within 6 months.
The results of this study suggest that the complication rates associated with the treatment of isolated mandibular angle fractures using a superior border plating technique, in this patient population, is relatively low (12%). The complications were all minor in nature. There was a permanent (>12 months) inferior alveolar sensory deficit in 4 (8%) patients.
确定采用单上缘微型钢板技术切开复位内固定治疗孤立性下颌角骨折患者的并发症发生率。
这是一项回顾性研究，对1998年1月至2004年12月期间在某地区口腔颌面外科按照特定方案治疗的孤立性下颌角骨折连续患者进行研究。记录患者的人口统计学资料、骨折病因、住院时间、第三磨牙拔除情况及术后并发症。记录术前和术后下牙槽神经功能。进行客观感觉测试和患者访谈以确定术后感觉缺失的发生率。
研究人群包括50例孤立性下颌角骨折患者，6例（12%）出现需要取出骨板的并发症。这些并发症较轻微，发生在骨折愈合后，情况如下：4例（8%）出现与骨板相关的浅表软组织感染，经口服抗生素治疗；1例（2%）出现骨板暴露；另有1例（2%）出现骨板骨折。所有6例（12%）患者均在全身麻醉下作为择期日间手术接受骨板取出治疗。39例（78%）患者进行了长期感觉随访，平均37个月（2至84个月）。4例（8%）出现永久性下牙槽感觉缺失（>12个月）。26例伤后/术前感觉功能正常的患者中有5例（19%）术后出现感觉缺失。该组所有患者均报告在6个月内感觉恢复正常。
本研究结果表明，在该患者群体中，采用上缘钢板技术治疗孤立性下颌角骨折的并发症发生率相对较低（12%）。并发症性质均较轻微。4例（8%）患者出现永久性（>12个月）下牙槽感觉缺失。
