髁状突骨折内外固定疗效分析

目的　对比分析常规的颌间弹性牵引外固定与微型钛板坚强内固定在髁状突骨折中的临床疗效及可靠性。　方法　对 4 0例髁状突骨折患者分别采用颌间弹性牵引外固定 (2 1例 )和微型钛板坚强内固定 (19例 ) ,其中高位骨折 15例 ,低位骨折 2 5例。　结果　术后 2～ 4周复查 ,X线片示骨折均愈合良好 ,内固定组钛板无松脱。张口度≥ 30mm者 ,外固定 10例 ,内固定 14例。张口度 <30mm者 ,外固定 11例 ,内固定 5例。　结论　内外固定均能达到治愈髁状突骨折的目的 ,但外固定复位明显不及内固定准确 ,术后功能恢复较慢 ,且对错位明显的低位骨折复位效果更差。本组病例两种方法均未见对颞下颌关节造成不可逆的损害。

Curative effect analysis of internal and external fixations on condylar fractures

Objective To compare and analyze the clinical effects and reliabilities of intermandibular flexible distraction and rigid internal fixation in treating mandibular condylar fractures. Methods Of 40 patients with mandibular condylar fractures, 21 cases were managed with intermandibular flexible distraction (external fixation group, Group A) and 19 with rigid titanium internal fixation (internal fixation group, Group B). There were 15 cases with high position fractures and 25 with low position ones. Results During 2-4 weeks postoperatively, X-rays confirmed the condylar fracture healing in all cases with no loosened mini-tinum plates in the Group B. There were 10 cases in the Group A and 14 cases in the Group B with the opening width over 30 mm, and 11 cases in the Group A and 5 in the Group B with the opening width less than 30 mm. Conclusions Both external and internal fixations can attain condylar fracture healing. However, compared with the internal fixation, the reduction of external fixation is less exact and the function recovery slower after operation, especially in the low position fractures. No irreversible damages on TMJ happen in all cases.