title: A modified Mohler technique for patients with unilateral cleft lip based on geometric principles--A primary report.
abstract: OBJECTIVE
  The Mohler technique is one of the most popular methods to repair unilateral cleft lip (UCL) among the modified Millard methods, but it is still imperfect. We successfully designed a modified Mohler method based on geometric principles and observed its clinical effect.
  
  
  METHODS
  Photogrammetry was performed in 56 patients who underwent UCL repair with the new technique. The symmetry ratios were assessed for sn-cphi, cphi-sbal, ch-sbal, ch-cphi, and vh preoperatively and 1 week after surgery, and were also compared with values in healthy control individuals.
  
  
  RESULTS
  Preoperatively, all distances on the cleft side were shorter to different degrees. One week after surgery, results showed well-healed wounds with full, symmetric, and continuous vermilion. On the cleft side, the sn-cphi was 6.13% longer than the non-cleft, and the others were shorter (cphi-sbal: 5.904%; ch-sbal: 1.760%; ch-cphi: 6.234%). The symmetry ratios had differences of significance between preoperative values and those 1 week after surgery (p = 0.000, respectively). Moreover, the vermilion height on the cleft side was 1.026% thicker. When compared with the matched control group, with the exception of SRcphi-sbal (p = 0.072) and SRch-sbal (p = 0.139), there were significant differences (p = 0.000, respectively). All distances in the matched control group were not absolutely symmetric.
  
  
  CONCLUSIONS
  The modified Mohler technique seems widely applicable, marking accurate, and less flexible.
authors.affiliation: Oral Department, Children's Hospital, Chongqing Medical University, Chongqing, 400014, PR China.
authors.forename: Liqi
authors.initials: L
authors.lastname: Li
authors.affiliation: Oral Department, Children's Hospital, Chongqing Medical University, Chongqing, 400014, PR China.
authors.forename: Lishu
authors.initials: L
authors.lastname: Liao
authors.affiliation: Oral Department, Children's Hospital, Chongqing Medical University, Chongqing, 400014, PR China.
authors.forename: Yuxiang
authors.initials: Y
authors.lastname: Zhong
authors.affiliation: Oral Department, Children's Hospital, Chongqing Medical University, Chongqing, 400014, PR China.
authors.forename: Yuangui
authors.initials: Y
authors.lastname: Li
authors.affiliation: Oral Department, Children's Hospital, Chongqing Medical University, Chongqing, 400014, PR China.
authors.forename: Li
authors.initials: L
authors.lastname: Xiang
authors.affiliation: Oral Department, Children's Hospital, Chongqing Medical University, Chongqing, 400014, PR China. Electronic address: cqlwsam2622@163.com.
authors.forename: Wanshan
authors.initials: W
authors.lastname: Li
mesh_terms: D016022:Case-Control Studies; D002971:Cleft Lip / Q000601:surgery*; D004210:Dissection / Q000379:methods; D005152:Facial Muscles / Q000601:surgery; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D007742:Labial Frenum / Q000601:surgery; D008046:Lip / Q000033:anatomy & histology / Q000601:surgery; D008297:Male; D009061:Mouth Mucosa / Q000601:surgery; D009296:Nasal Cavity / Q000601:surgery; D009297:Nasal Mucosa / Q000601:surgery; D010780:Photogrammetry / Q000379:methods; D019651:Plastic Surgery Procedures / Q000379:methods*; D012189:Retrospective Studies; D016038:Skin Transplantation / Q000379:methods; D013524:Surgical Flaps / Q000601:surgery; D016896:Treatment Outcome
keywords: Geometric principle; Mohler technique; Photogrammetry; Rotation-advancement flap; Symmetry ratio; Unilateral cleft lip