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find Author "ZHANGZhenyu" 3 results
  • TREATMENT OBSERVATION OF NASAL TIP DEFECTS RECONSTRUCTED BY BILOBED FLAPS AFTER GAINT NEVI EXCISION

    ObjectiveTo discuss a reliable and aesthetic surgery method for the reconstruction of large defects on the top of nose after giant nevi resection. MethodsBetween January 2011 and June 2015, 46 cases of nasal tip defects caused by giant nevi resection were treated. Of 46 cases, 22 were male and 24 were female, aged 15-59 years (median, 28 years). The right ala nasi was involved in 28 cases, the apex nasi in 8 cases, and the left ala nasi in 10 cases. The diameters of nevi were from 8 to 12 mm (mean, 9.75 mm); no alar cartilage was invaded. Hair growth was seen in 14 cases. The duration of nasal nevi was from 3 years to 49 years (mean, 9.8 years). There were 9 recurrent patients who received laser therapy before surgery. The defects sizes after excision were from 10 mm×10 mm to 14 mm×14 mm. The bilobed flaps were used for one-stage reconstruction, which sizes were from 11 mm×10 mm to 15 mm×14 mm and from 10 mm×10 mm to 15 mm×14 mm. ResultsAll the incisions healed by first intention, and the flaps survived. No complication of intracranial hemorrhage or subdural hemorrhage occurred. The patients were followed up 6 months to 5 years (mean, 18 months). The appearance of nasal tip and nasolabial fold was satisfactory, and no recurrence was found during follow-up. ConclusionOne-stage bilobed flap reconstruction for nasal tip defects after giant nevus resection is one of the effective, safe, and aesthetic surgery methods.

    Release date:2016-11-14 11:23 Export PDF Favorites Scan
  • EFFECT OF ANTEROINFERIOR TIBIOFIBULAR LIGAMENT REPAIR AND POSTERIOR MALLEOLAR FRACTURE FIXATION ON SYNDESMOTIC STABILITY

    ObjectiveTo evaluate the biomechanical characteristics and effectiveness of repairing anteroinferior tibiofibular ligament and fixing the posterior malleolar fracture in reconstructing syndesmotic stability after ankle fracture of pronation-external rotation type (PER) stage IV. MethodsTwenty-four normal lower extremity cadaver specimens were collected and made into intact ankle specimens. A MTS Bionix 858 test system was used to measure the maximum rotation of the foot under a static axial load of 150 N, internal rotation torque to the tibia at a rate of 1°/second and 4 N·m torque. Then a fracture of PER stage IV model was established in each specimen. Internal fixation of lower tibiofibular ligament union was performed by screws in group A, fixation of posterior malleolar fractures in group B, fixing posterior malleolar fracture combined with repairing anteroinferior tibiofibular ligament in group C (8 specimens each group). Then the maximum rotation of the foot was measured under the same condition, and the syndesmotic stability was calculated. Between July 2009 and September 2012, 32 patients with ankle fracture of PER stage IV were treated. There were 19 males and 13 females with an average age of 35 years (range, 20-63 years). The locations were the left ankle in 14 cases and the right ankle in 18 cases. The time from injury to admission was 3.5 hours on average (range, 1-72 hours). Open reduction and plate compression internal fixation were performed in fibula, and medial malleolus was fixed by conpression screws, then anteroinferior tibiofibular ligament was mended and posterior malleolar fracture was fixed by screws. ResultsThe preservation rates of syndesmotic stability after repair were 46.2%±12.3%, 62.6%±10.7%,and 66.5%±12.6% in groups A, B,and C, respectively; groups B and C were significantly superior to group A (P<0.05),but no significant difference was found between groups B and C (P>0.05). All patients achieved wound healing by first intention, and were followed up 12-24 months (mean,15 months). All fractures healed,with an average healing time of 11.2 weeks (range, 10-14 weeks) on the X-ray films. No seperation of inferior tibiofibular syndesmosis was observed during the follow-up period. American Orthopaedic Foot and Ankle Society (AOFAS) ankle-hindfoot score was 88.4 on average (range, 61-98) at last follow-up; the results were excellent in 13 cases,good in 15 cases, and fair in 4 cases, with an excellent and good rate of 87.5%. ConclusionIn patients with ankle fracture of PER stage IV, a combination of fixing the posterior malleolar fracture and repairing anteroinferior tibiofibular ligament can reconstruct syndesmotic stability effectively.

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  • CLINICAL OBSERVATION OF MODERATE TO SEVERE BLEPHAROPTOSIS CORRECTION WITH ARC-SHAPED FRONTALIS APONEUROSIS FLAP

    ObjectiveTo evaluate the effectiveness of an arc-shaped frontalis aponeurosis flap for the treatment of moderate to severe blepharoptosis. MethodBetween January 2011 and December 2014, 80 cases (140 eyes) of moderate to severe blepharoptosis were treated, including 31 males and 49 females with a median age of 16 years (range, 6-45 years). One eye was involved in 20 cases and both eyes in 60 cases. Upper eyelid ptosis degree ranged from 3 to 6 mm (average, 5 mm) when looking at the front horizontally. Fifty-one patients had underwent plastic surgery, and the first operation was performed in others. The arc-shaped frontalis aponeurosis flap was created by incision of upper and middle edge of the eyebrow, then it was retracted to the upper eyelid aponeurosis and was fixed in a slight over-correction position. ResultsThe operation was completed smoothly. The intraoperative blood loss was 5-10 mL (mean, 7 mL). Mild swelling of incision was observed after operation, and disappeared at 3-5 days after operation. Primary healing of incision was obtained, with no complications of infection and flap necrosis. The follow-up duration was 1-3 years (mean, 1.5 years). Seventy-nine cases could close upper eyelid completely and the function of upper eyelid was satisfactory within 3 months. One patient could not close upper eyelid completely after 6 months, and mild keratitis occurred, which was cured by anchyloblepharon. ConclusionsThe arc-shaped frontalis aponeurosis flap can be regarded as a minimally invasive procedure for the treatment of congenital moderate to severe blepharoptosis, it was safe, reliable, and easy-to-grasp.

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