Grayson Barry H, Maull Deirdre
Institute of Reconstructive Plastic Surgery, New York University Medical Center, NY 10016, USA.
Clin Plast Surg. 2004 Apr;31(2):149-58, vii. doi: 10.1016/S0094-1298(03)00140-8.
The principle objective of presurgical nasoalveolar molding (NAM) is to reduce the severity of the initial cleft deformity. This enables the surgeon and the patient to enjoy the benefits associated with a repair of a cleft deformity that is of minimal severity. Retraction of the premaxilla, presurgical elongation of the columella, correction of the nasal cartilage deformity, alignment of the cleft alveolar segments, increase in the surface area of the nasal mucosal lining, up-righting of the columella, and achieving close approximation of the cleft lip segments at rest result from gentle application of forces through the NAM appliance. Preservation of these presurgical changes is achieved through the coordinated and modified surgical technique of the primary cleft repair.
术前鼻牙槽塑形(NAM)的主要目标是减轻初始腭裂畸形的严重程度。这使得外科医生和患者能够受益于修复程度最轻的腭裂畸形。通过NAM矫治器轻柔施力,可实现上颌前突的回缩、术前鼻小柱延长、鼻软骨畸形的矫正、腭裂牙槽突段的对齐、鼻黏膜衬里表面积的增加、鼻小柱的直立以及静止时唇裂段的紧密贴合。通过一期腭裂修复的协调且改良的手术技术可保留这些术前改变。