Shore J W
Department of Ophthalmology, Wilford Hall USAF Medical Center, San Antonio, Texas.
Adv Ophthalmic Plast Reconstr Surg. 1987;6:377-85.
The fornix or transconjunctival approach to the orbital floor and inferior orbit provides excellent exposure for the surgeon managing orbital fractures. The technique is ideally suited for patients with isolated blowout fractures; however, it can be combined with other surgical incisions to provide wide exposure of the inferior orbit, zygoma, and maxilla for the repair of more complex midfacial fractures. The surgical technique provides excellent access to the inferior orbit for biopsy or excision of orbital tumors and excellent opportunity for surgically augmenting orbits with posttraumatic enophthalmos or enophthalmos associated with anophthalmic sockets. Orbital decompression into the maxillary antrum and ethmoid sinus is easily accomplished through this incision. By avoiding a cutaneous incision in the lower eyelid, one reduces the risk for development of postoperative ectropion. During wound closure, the lower eyelid can be elevated and tightened and the canthal angle can be restored if necessary.
经穹窿或经结膜入路至眶底和眶下部,为处理眼眶骨折的外科医生提供了极佳的视野暴露。该技术非常适合单纯性爆裂骨折患者;然而,它也可与其他手术切口联合使用,以广泛暴露眶下部、颧骨和上颌骨,用于修复更复杂的面中部骨折。该手术技术为眼眶肿瘤的活检或切除提供了极佳的眶下部入路,也为因创伤后眼球内陷或无眼球眼眶相关的眼球内陷而进行眼眶手术增大提供了绝佳机会。通过该切口可轻松实现向颌窦和筛窦的眼眶减压。通过避免在下眼睑做皮肤切口,可降低术后睑外翻的发生风险。在伤口闭合过程中,可抬高并收紧下眼睑,必要时可恢复眦角。