胸大肌肌皮瓣与钛板联合修复口腔癌根治术后的下颌骨缺损

目的探讨胸大肌肌皮瓣与钛板联合即刻修复口腔癌根治术后的下颌骨缺损的效果。方法2001年11月~2003年2月,对32例口腔癌根治术后下颌骨缺损患者,其中11例下颌牙龈癌行龈颌颈联合根治术,13例舌癌行舌颌颈联合根治术,4例口底癌行口底颌颈联合根治术,4例颊粘膜癌行颊颌颈联合根治术。术后遗留下颌骨缺损长度4~12 cm,邻近软组织缺损范围5.5 cm×7.6 cm~8.2 cm×10.5 cm,采用大小为6 cm×7 cm~9 cm×10 cm带蒂胸大肌肌皮瓣与钛板即刻修复。通过回顾性研究,分析其修复效果。结果术后肌皮瓣29例全部成活,3例有小部分皮岛坏死。均获随访2~19个月,27例面部外形基本满意,5例呈轻度不对称畸形;余留的上下颌牙咬牙合关系、咀嚼功能恢复良好;张口度2.7~3.4 cm;未出现与手术相关的颞颌关节疾病。结论胸大肌肌皮瓣与钛板联合应用是修复口腔癌根治术后伴较多软组织缺损和下颌骨节段性缺损较理想的方法。

RECONSTRUCTION OF MANDIBULAR DEFECT CAUSED BY RESECTION OF ORAL CARCINOMA WITH PECTORALIS MAJOR MYOCUTANEOUS FLAP AND TI-PLATE SYSTEM

OBJECTIVE: To investigate the clinical effect of the pectoralis major myocutaneous flap and Ti-plate system in repairing mandibular defects caused by resection of oral carcinoma. METHODS: From November 2001 to February 2003, 32 patients with mandibular defect caused by resection of oral carcinoma were treated. Combined radical neck dissection with resection of gingival and mandible was performed on 11 patients with carcinoma of the lower gingival, combined radical neck dissection with glossectomy and mandibulectory on 13 patients with carcinoma of tongue, combined radical neck dissection with resection of floor of mouth and mandible on 4 patients with carcinoma of floor of mouth, and combined radical neck dissection with resection of cheek and mandible on 4 patients with carcinoma of buccal mucosa, respectively. The defects of mandible were associated with soft-tissue component, the sizes of defect ranged from 5.5 cm x 7.6 cm to 8. 2 cm x 10.5 cm. The defects were reconstructed with 6 cm x 7 cm to 9 cm x 10 cm pectoralis major myocutaneous flaps and Ti-plate system. The effect was studied retrospectively. RESULTS: Thirty-two cases were followed for 2-19 months; 29 cases of flaps survived and 3 cases of flaps partly necrosed (10% or less of the skin paddle). The appearance of face was satisfactory in 27 patients, and slight deformity of face was observed in 5 patients. The occluding relation and masticatory function were recovered well. Opening mouth extents ranged from 2.7 cm to 3.4 cm. No temporomandibular arthrosis relating to operation was found in all cases. CONCLUSION: A combination of thhe pectoralis major myocutaneous flap and Ti-plate system is an ideal method for reconstruction of mandible defects associated with soft-tissue component after radical operation of oral carcinoma.