[Evaluation of the symmetry in nasolabial area of unilateral complete cleft lip with the method of rotation descent step by step].

PURPOSE: To evaluate the symmetry and stability of nasolabial area of unilateral complete cleft lip (UCCL) after primary repair with the method of rotation descent step by step. METHODS: Thirty patients with UCCL who were operated on were photographed before, 1 week after and 1 year after surgery, the distances from alare point (al), sub alare point (sba), christa phlitri point (cph) and chelion point (ch) to the facial vertical midline (VML) were measured and compared with the opposite side by paired t test. Statistical analysis was performed with SPSS 19.0 software package. RESULTS: There were significant differences in al, sba and cph between the cleft side and non-cleft side before(P<0.05) and 1 week after surgery; significant differences were found in al, sba and ch between the affected and unaffected side (P<0.05); but 1 year after surgery, there was no significant difference between the two sides except sba. After surgery, all the distances from VML were less than those before surgery. There was no significant difference in symmetry rate between 1 week and 1 year after surgery for all the points except sba. CONCLUSIONS: The results indicated that the method of rotation descent step by step is very helpful in reconstruction of lip symmetry, but primary repair can not achieve full recovery of nasal symmetry.

[3D printing navigation template-guided percutaneous radiofrequency thermocoagulation for V2 trigeminal neuralgia treatment].

OBJECTIVE: This paper aimed to evaluate the effectiveness of the 3D printing puncture navigation template-guided percutaneous radiofrequency thermocoagulation for V2 trigeminal neuralgia treatment. METHODS: A total of 52 patients with V2 trigeminal neuralgia were treated with radiofrequency thermocoagulation. A total of 32 patients were treated under the guidance of the 3D printing puncture navigation template (guide plate group), while 20 patients underwent puncture via pterygopalatine fossa routinely (routine treatment group). The puncture time, operation time, puncture success rate, and immediate postoperative pain were recorded. The degree of immediate postoperative pain was indicated by visual analogue scale (VAS). Barrow Neurological Institute (BNI) classification criteria were used to evaluate the efficacy, and the postoperative complications were observed. All patients were followed up for 1 year. RESULTS: The two groups showed significant decrease in VAS after the operation (P<0.05). The puncture and operation times of the guide plate group were significantly lower than those of the routine treatment group (P<0.05). The difference in terms of the clinical effects and recurrence rate between the two groups was insignificant (P>0.05). CONCLUSIONS: 3D printing puncture navigation template-guided radiofrequency thermocoagulation may increase the operation success rate and reduce complication incidence. Therefore, this technique possesses clinical promotional value.