Autologous buccal mucosal graft for urethral reconstruction

Objective To search for a new method for urethra reconstruction using autologous buccal mucosal graft while lacking of local skin. Methods Since 1998, a total of 25 patients with complex hypospadias have been treated using buccal mucosal grafts for urethral reconstruction. The reconstructed urethra was anastomosed with the meatus half year later. Results All the reconstructed urethra survived without contracture or stricture except one infection, which healed with no adverse consequence. Conclusion The key points for operation success is rich capillary network, thick epidermis and thin lamina propria of the buccal mucosa. Buccal mucosa is an excellent tissue for urethral reconstruction. 5 refs,3 figs.

Breast ptosis correction with a knitted polypropylene mesh

Objective To evaluate a knitted polypropylene mesh used for mammapexy in correcting the breast ptosis. Methods Twenty-one patients with the mild or moderate breast ptosis were undergoing the mammapexy with a knitted polypropylene mesh. The operation was performed through the periareolar incision and a monofilament knitted polypropylene mesh was subcutaneously implanted on the surface of the gland and fixed up-ward. Results All of the patients were satisfactory of the appearance with the follow-ups from 2 to 16 months. No secondary ptosis, hypemophic scars and foreign body reactions were found. Conclusion The above-mentioned technique could be a good, safe and reliable method for correcting breast ptosis. 13 refs,3 figs.

Intro-extro carnial approach treatment serious post fronto-orbital fracture deformities

Objective To explore the method of treating serious secondary fronto-orbital fracture deformities through intro-extra cranial approach. Methods The fronto-orbital fracture was divided into two types according to whether there were any large scale fronto-otbital bone defects; typeⅠ: Large scale fronto-orbital bone defect; type Ⅱ: Concave fronto-orbital fracture deformity without large scale bone defect. Both types were treated throuth intro-extra cranial approach to expose the fracture site. For typel deformity, the bone defects were repaired and reconstructed with outer table of cranial bone and artificial bone. For type Ⅱ, the deformity was repaired by osteotomy, bone reposition and internal rigid fixation. Results 18 cases were treated from June 1998 to October 2000, include typeⅠ, 12 cases, and typeⅡ, 6 cases. All the patients recovered well and the post-operative appearance were greatly improved. Conclusion Intro-extra cranial approach can June 2003 Vol12 No2 expose the fractured site better

Effects of tobacco extract on adhesion and proliferation of human osteoblasts on titanium implants

Objective To investigate effect of smokingless tobacco extract ( ST) on number,adhesion,morphology and proliferation of human osteoblasts on titanium implants in vitro. Methods Human osteoblasts on titanium implants were cultured in presence of ST at various concentrations. The morphologic changes of osteoblasts

Effect of Pentoxifyiline on necrosis rate and hemorrheology of free flap

Objective To investigate effect of Pentoxifylline on free flap. Methods Forty Wistar rats were chosen as experimental models and free flaps were harvested from the back of rats,which as pect ratio was 3: 1. Then they were divided into two groups randomly. Group A was as the experimental group,receiving drug treatment.

Full face dermabrasion for acne scars

Dermabrasion has been of great value in plastic surgery.Dermabrasion was developed for a specific indication; however within a very short time,the concept of dermabrasion found wide applicability.This study was to investigate the application of dermabrasion in the treatment of acne scars.Methods From Feb. 1996 to May 2004,a total of 110 patients with acne scar were treated with dermabrasion.Results Postoperatively,the curative results were achieved in 45 cases;good results in 40 cases and effective results in 25 cases.The study revealed that the patients at 18～46 years of age have good results.Conclusion Dermabrasion is a good and safe technique to treat the scar of acne.6 refs,4 figs.

Rejuvenation of the forehead/temple by limited incision

To utilize multiplane,subcutaneous and subperiosteal,dissection through small incisions in scalp to rejuvenate aging signs of forehead/temple.Methods Forehead:We make four small incisions in scalp,widely separate tissues between subperiosteum skin and frontal muscle to form galea frontal muscle-periosteum flap,the flap is tighten and sutured with the galea at the posterior border of the incision.This method avoid to excise scalp.Temple:there are two small incisions in the scalp of temple at each side.Superfical temple fascia and orbicularis oculi muscle as while is dissected from deep temporal fascia and skin respectively,then tightened and sutured with the superficail part of deep temporal fascia,excising scalp is not necessary.Results Twenty patients have received this treatment,the effects are satisfying.Conclusion Multiplane dissection through small incisions can remove wrinkles of skin,correct the prolapse of eyebrow and avoid the complications of coronary incision.This approach brings more rapid recorery of patients,it is safe and affective.7 refs,4 figs.

Reconstruction of tracheal defect using the contralateral musculo-periosteum flap of the sternocleidomastoideus with clavicular periosteum

To reconstruct tracheal defect after tumor excision,we used the contralateral musculo-periosteum flap of the sternocleidomastoideus with clavicular periosteum.Methods The contralateral musculo-periosteum flap of the sternocleidomastoideus with clavicular periosteum was used to reconstruct the tracheal defect when the blood supply to the ipsilateral sternocleidomastoideus was destroyed because of lymphonode clearing or radiotherapy.The pedicle of the musculo-periosteum flap was dissected adequately and the blood supply was protected carefully.Results All flaps survived with epithelization and osteogenesis.The endotracheal tubes were pulled out safely without trachea stenosis in all the patients.Conclusion The contralateral musculo-periosteum flap of the sternocleidomastoideus with clavicular periosteum could reconstruct the tracheal defect when the ipsilateral blood supply was damaged.This method extends the application of the musculo-periosteum flap.3 refs,4 figs.

Correction of secondary deformity of unilateral cleft lip with refined anatomic repair in orbicularis oris muscle

Objective To investigate the functional repair of secondary deformity of unilateral cleft lip. Methods The nasal branch,nasolabial branch,and labial branch of orbicularis oris muscle were dissected and repositioned precisely to correct the secondary deformity of unilateral cleft lip. Results 96 parients were treated

A study of making use of computer-aided projection fringe system to measure breast dimension

To measure breast basic dimension by using computer-aided projection fringe system.Methods A system has been developed for measuring breast basic dimension based on computer-aided projection fringe measurement and programming software.Plastic manikins breast’s SN-N (sternal notch to nipple distance),N-ML (nipple to midline distance),N-N (internipple distance),MBW (base width of breast) and N-IMF (nipple to inframammary fold distance) are measured with this system.At the same time,these items are also measured with routine ruler.Results This study indicate that the system has some merits:① non-touching measurement;② it is very rapid,the patient measured need hold his breath only 0.5 second,and all the time it takes is about 2.5 minutes;③ the measurement’s sensitivity is as high as to 0.6 mm,which meets the clinic requirement entirely;④ the measurement’s accuracy of the system is not significantly when comparing to the routine ruler’s.Conclusion Computer-adided projection fringe system for measuring breast basic dimension is feasible and advanced.14 refs,1 fig.

Assessing risk factors of perioperative major cardiac events in elderly patients with coronary heart disease undergoing noncardiac surgery

To the editor： In a retrospective observational clinical study including 482 elderly patients with coronary heart diseaseundergoing elective major noncardiac surgery, Liu et al＇ showed that the incidence ofperioperative major adverse cardiac events （MACEs） was 12.7%, and five risk factors were independently associated with perioperative MACEs. This study makes an important contribution to the effort to define risk factors for perioperative MACEs in elderly patients with coronary heart disease undergoing noncardiac surgery. Strengths of this study include a large sample of patients and most of the known risk factors that can affect perioperative MACEs. Furthermore, the authors have used appropriate methods to identify independent risk factors for perioperative MACEs. However, in our view, there are several aspects of this study that should be considered.

Ischemic preconditioning produces more powerful anti- inflammatory and cardioprotective effects than limb remote ischemic postconditioning in rats with myocardial ischemia-reperfusion injury

Background Both ischemic preconditioning （IPC） and limb remote ischemic postconditioning （LRIPOC） have been shown to possess significantly different cardioprotective effects against the myocardial ischemia reperfusion injury （IRI）, but no study has compared the anti-inflammatory effects of IPC and LRIPOC during myocardial IRI process. We hypothesized that IPC and LRIPOC would produce different anti-inflammatory effects in an in vivo rat model with myocardial IRI.