Bardach J, Kelly K M, Salyer K E
Department of Otolaryngology-Head and Neck Surgery, University of Iowa Hospitals and Clinics, Iowa City.
Plast Reconstr Surg. 1994 Aug;94(2):343-51. doi: 10.1097/00006534-199408000-00020.
Undermining of the soft tissue on the surface of the maxilla at the time of cleft lip repair remains a controversial issue in cleft management. Using 64 eight-week-old beagles, we tested the hypothesis that lip repair with soft-tissue undermining contributes more to maxillofacial growth aberrations than lip repair without these additional procedures. Animals were assigned to four groups: unoperated controls, unrepaired controls, and two experimental groups (with and without undermining). Defects simulating cleft of the lip, alveolus, and palate were surgically created in the unrepaired and experimental animals. At 36 weeks of age, 11 measurements were made directly on the cleaned maxillae. Analysis revealed that all groups with surgically created defects were significantly different from normal; however, animals with undermining exhibited the greatest group deviation from normal. These findings reaffirm our earlier conclusions that undermining of the soft tissue on the surface of the maxilla is detrimental to maxillofacial growth.
唇裂修复时对上颌骨表面软组织的潜行分离在唇裂治疗中仍是一个有争议的问题。我们使用64只8周龄的比格犬，检验了以下假设：与未进行这些额外操作的唇裂修复相比，进行软组织潜行分离的唇裂修复对颌面生长畸形的影响更大。将动物分为四组：未手术的对照组、未修复的对照组和两个实验组（有潜行分离和无潜行分离）。在未修复组和实验组动物中，通过手术制造模拟唇、牙槽突和腭裂的缺损。在36周龄时，直接对清理后的上颌骨进行了11项测量。分析显示，所有手术制造缺损的组与正常组均有显著差异；然而，进行潜行分离的动物组与正常组的偏差最大。这些发现再次证实了我们早期的结论，即上颌骨表面软组织的潜行分离不利于颌面生长。
