Weiqiang Liang

Sun Yat-Sen University, Shengcheng, Guangdong, China

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Publications (8)9.7 Total impact

  • Chenyang Ji · Ruiting Li · Weiqiang Liang · Yuhong Chen · Jinming Zhang
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    ABSTRACT: Objective To help surgical trainees reach a deep understanding of plastic operations, we developed and evaluated an economical and convenient model using plasticine for plastic surgical training. Methods From Sep of 2012 to Dec of 2014, we invited 57 medical interns to participate in a program designed for the qualitative evaluation of this model. In this program, 57 interns were asked to simulate certain surgical operations under guidance of the experienced staff of our department using the plasticine model. The value of the plasticine model was evaluated through questionnaire surveys. Their acceptance of the plasticine model, as well as the benefits and the flaws, was evaluated by the questionnaire survey. Results All the participants completed the training session as well as the questionnaire, all of whom felt that the plasticine model had increased their familiarity with the surgical procedure they were assigned. By remodeling plasticine, the trainees understood either the brief surgical procedures or some confusing operative details in plastic surgery. In the questionnaire surveys, the trainees showed considerable consensus with the training program. The flaws of this method were also listed. The flaws generally reflected that “it is difficult to model into a vivid image” and “it is not suitable for all the operation”. Conclusions Overall, the plasticine model is accepted by the participants in this survey. This model is economical and versatile, and could be used as a complementary training tool for novices in simulated operation training of plastic surgery. No Level Assigned This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www. springer. com/ 00266.
    No preview · Article · Dec 2015 · Aesthetic Plastic Surgery
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    ABSTRACT: Marjolin's ulcers, which are epidermoid carcinomas arising on non-healing scar tissue, may be of various pathological types, including squamous cell carcinoma. The pathogenesis of squamous cell carcinoma arising in an ulcer differs from that of the primary cutaneous squamous cell carcinoma. This squamous cell carcinoma is aggressive in nature, and has a high rate of metastasis. Between January 2001 and September 2013, 51 patients with Marjolin's ulcers were admitted to the Departments of Plastic Surgery of the Affiliated Foshan Hospital and the Second Affiliated Hospital of Sun Yat-sen University. The ulcers included 43 cases of squamous cell carcinoma, six of melanoma, one of basal cell carcinoma and one of epithelioid sarcoma. The clinical data of these patients were retrospectively analyzed. Patients were followed until mortality. Among the patients with squamous cell carcinoma, 30.23% exhibited sentinel lymph node metastasis and 11.63% had distant metastasis. Among the patients with melanoma, 66.67% had sentinel lymph node metastasis and 33.33% had distant metastasis. Sentinel lymph node metastasis was successfully detected in 11 patients with Marjolin's ulcer using18 F-fluorodeoxyglucose positron emission tomography-computed tomography and B-mode ultrasound guided biopsy. Squamous cell carcinoma was often treated by extended resection and skin grafting or skin flap repair. Patients with deep, aggressive squamous cell carcinoma of an extremity and sentinel lymph node metastasis underwent amputation and lymph node dissection. This treatment was also used for melanoma type Marjolin's ulcers.
    Preview · Article · Aug 2015 · Experimental and therapeutic medicine
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    ABSTRACT: To explore the feasibility to repair defect on the neck and chest with the rectus abdominis flap which pedicle is lengthened by measuring the width, thickness, and the intercostal space of the inferior costicartilage using CT angiography (CTA). Thirty cases receiving CTA and three-dimensional reconstruction between July and December 2013 were included in the study. Of 30 cases, 17 were male and 13 were female, aged 44-70 years (mean, 56 years). The width and thickness of the 3rd to 7th costicartilages and the distance of the 3rd to 6th intercostal spaces were measured, and the lengthened pedicle was calculated after the 4th to 7th costicartilage was cut off. Between July 2012 and November 2013, the lengthened pedicle of the rectus abdominis flap was clinically used to repair the defect on the neck and chest in 4 cases. The pedicle of the rectus abdominis flap was about 6 cm in length. When the left 7th, 6th, 5th, and 4th costicartilages were cut off, the average pedicle was lengthened by 4.07, 7.99, 12.50, and 17.48 cm respectively; when the right 7th, 6th, 5th, and 4th costicartilages were cut off, the average pedicle was lengthened by 4.63, 10.82, 16.64, and 22.05 cm respectively. In 4 flaps which were clinically used to repair defects, 3 flap completely survived, 1 flap had partial necrosis. Three patients were followed up 6 months, and the appearance and texture of the flap were satisfactory; 1 patient failed to be followed up. Resecting the inferior costicartilage can prolong the pedicle of the rectus abdominis flap, therefore it can be used to repair defect on the upper chest and the neck.
    No preview · Article · Nov 2014 · Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery
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    ABSTRACT: We describe a modification of the Koyanagi technique for hypospadias in an attempt to reduce complications and improve results. Between January 2005 and July 2012, 21 patients underwent treatment of proximal hypospadias using a modified hypospadias repair. The procedure involved making a U-incision similar to that in a Thiersch-Duplay repair to preserve the blood supply to the tubular neourethra. The neourethra was reconstructed by island penile skin. An M-incision was made in the glans, and the meatus was attached to tip of glans. Flaps were harvested from both sides of the penis preventing postoperative penile turn. Cosmetic and functional, long-term (mean, 12 months) recovery was excellent. Complications consisted of 3 cases of urethrocutaneous fistula (14.2%), which were corrected surgically, and 2 cases of penile skin necrosis. There were no instances of meatal stenosis, diverticulum, or urethral stricture. Bifid scrotum was present in 6 patients, and associated penoscrotal transposition was present in 15 patients. Both of these associated defects were corrected at the time of surgery. The modified technique permits 1-stage repair of proximal hypospadias with a low complication rate, the satisfactory recovery. Copyright
    No preview · Article · Oct 2014 · Annals of Plastic Surgery
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    ABSTRACT: Background: The surgical treatment of hypospadias contains urethral reconstruction and correction of penile curvature. In some severe type of hypospadias, it also needs correction of penoscrotal transposition and cleft of scrotum. However, there are few literatures that refer to the correcting of deformity of glanular dislocation. Objective: This study aimed to correct the deformity of glanular dislocation in patients with hypospadias with up-to-tip technique and double wing flaps. Methods: From May of 2011 to September of 2012, 49 patients who underwent hypospadias with glanular dislocation repairing received up-to-tip technique to correct the deformity of glanular dislocation in our department by a single surgeon (J.Z.). An X-shaped incision was made in the ventral median of glans, and the glans was dissected from the penis cavernosus, then 2 wing-shaped flaps appeared. The 2 sides of flaps were rotated and lifted with new urethra inside. The divergent glans flaps were closed with vertical mattress suture. Follow-up was from 12 to 30 months. Results: All patients had excellent cosmetic results immediately after the operation. The glans was straight and was upturned obviously. The wing flaps of glans were partially dehisced in 2 (4.08%) cases after the operation. The other patients had good wound healing. No urethral stricture in distal urethra was observed. Conclusions: Up-to-tip technique and double wing flap can effectively correct the deformity of glanular dislocation in the patients with hypospadias. After the operation, the glans configuration was improved.
    No preview · Article · Jul 2014 · Annals of Plastic Surgery
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    ABSTRACT: After patients with congenital microtia receive external ear canal plasty, the mastoid area usually has insufficient space for ear reconstruction. Hence, after ear reconstruction, an inferoposterior position deformity of the ear appears to some extent. Using inverted U-shaped purse and rotation flaps can correct this deformity effectively. From May of 2009 to September of 2011, five patients received the described procedures in the authors' department. Inverted U-shaped purse and rotation flaps were used for all the patients. The inverted U-shaped purse flap was used to reduce the area of the canal orifice and to lower the position, and the rotation flap was applied to turn the ear in a more superoposterior position. Two patients also received full-thickness skin grafting to cover the secondary wound. In four patients, V-Y-plasty or Z-plasty was used to adjust the flap transition. For the five patients, the distances between the ear antihelix and canal orifice were shortened, and the areas of the canal orifice were diminished. The retroversion of the auricle was corrected in various degrees, and the angles of the long axis of the auricle and the horizontal line were increased an average of 14.4°. The vertical distance between the top of the helix and the center of the canal orifice was increased an average of 15.2 mm. A slight dog ear deformity in front of the crus of the helix was left after the operation, but it was alleviated in the follow-up period. By using inverted U-shaped purse and rotation flaps, the inferoposterior position deformity of the reconstructed ear after external ear canal plasty in congenital microtia can be resolved effectively. LEVEL OF EVIDENCE IV: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors http://www.springer.com/00266.
    No preview · Article · Mar 2012 · Aesthetic Plastic Surgery
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    ABSTRACT: • To investigate the feasibility of tissue-engineered corpus cavernosum (TECC) with muscle-derived stem cells (MDSCs) as seed cells and determine the growth potential in vivo. • Acellular corporal collagen matrices (ACCMs) were obtained from adult rabbit penis by a cell removal procedure. MDSCs were separated and purified using a digestion method and Preplate technique, then seeded on ACCMs at a concentration of 30 × 10(6) cells/mL to construct TECCs. After 5 days of culture, seeded ACCMs were implanted with albuginea of rabbits. The implants were retrieved at 2, 4 and 6 months after implantation. • Histochemistry, immunohistochemisry and scanning electron microscopy were performed to analyse the morphological characteristics of the TECCs. • The decellularization process successfully extracted all cellular components while preserving the original collagen fibres. • Histological analyses of the explants at all time points in the experimental group had more cells and better arranged growth than the control group. α-Smooth muscle actin and endothelial nitric oxide synthase-positive cells were more prevalent in the experimental group. • Our study showed that MDSCs can be seeded on three-dimensional ACCM scaffolds and develop tissues that are similar to native normal corpus cavernosum.
    No preview · Article · May 2011 · BJU International
  • Jinming Zhang · Xiaoxuan Chen · Shujuan Pan · Weiqiang Liang · Yongyan Cui · Tao He
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    ABSTRACT: To evaluate the effect of niti-alloy urethral stent on the prevention of urethrocutaneous fistula and urethral stricture in hypospadias repair. From January 2001 to December 2004, niti-alloy urethral stents were applied to repair congenital hypospadias in 63 patients. Among 63 patients, 49 (19 cases of proximal hypospadias, 22 cases of penoscrotal hypospadias and 8 cases of perineoscrotal hypospadias) received one-stage surgical managements of urethral reconstruction, and 10 underwent postoperative fistular repairs and 4 received repeated urethral reconstruction because of urethral stricture after hypospadias repair. All patients gained healing by first intention without fistula or urethral stricture. The stents were left indwelling in the neourethra for 2 months to 3 months to prevent stricture. The longest indwelling period was about 1 year. No dysuria or other discomfort occurred during this period. Niti-alloy urethral stent can effectively prevent the postoperative urethrocutaneous fistula and urethral stricture after hypospadias repair.
    No preview · Article · Apr 2006 · Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery