1.A new type of external frame for the treatmemnt of club foot
Hanlin WANG ; Yazhou LI ; Junzhong LUO
Orthopedic Journal of China 2006;0(20):-
[Objective]A new type of external frame for the treatment of club foot in three dimensions was reported.The characteristics of this frame and Illizarov frame were compared.[Method]The new frame was consisted of 3 couples with 6 metal rods.The rods have lengthening or compressing force on foot in three dimensions respectively through 4 Kire wires in tibia,calcaneus and tarsals.Sixty-two cases with 85 club feet followed more than 12 months were treated by the frame since Fabruary 2004.[Result]According to Gaeceau standerd and clinical appearance,function of the feet after the treatment,40 feet were excellent,40 feet were good,5 feet were improved,no poor case.[Conclusion]The new type of external frame is safe,effective and reliable for the treatment of club foot in three dimensions.Compared to Illizarov frame,it is more simple,comfortable,cheep and easy to be managed.
2.Effect on the spine growth of the immature rabbits at different month-age with posterior spinal fusion (experimental research on crankshaft phenomenon of spine)
Hanlin WANG ; Yazhou LI ; Zhiqiang WANG
Orthopedic Journal of China 2006;0(21):-
[Objective]To explore the effect on spinal growth and devetopment at different month-age of immature rabbits with spinal fusion and fixation;and to explain the mechanism of crankshaft phenomenon after child scoliosis treatment.[Method]Twenty-four 6-weeks-old rabbits and 24 15-weeks-old rabbits were randomly divided into 2 groups.Various lengths of lumbar vertebral region were fused posteriorly and fixed with wires,and the Cobbs angle in the frontal and saglttal planes were measured after the surgery.[Result]The lumbar spine of each group became lordosis with different degree.It was most obvious in the group which were fused in 7 lumbar vertebraes at 6-month-week age.The multiple linear regression outcomes show significance among different month-age,different lengths of fusion region and the Cobbs angle.[Conclusion]In the imature rabbits,if their lumbar vertebrae were posteriorly fixed only may be appeared and getting serious gradually due to the potential growth of anterior spinal column.There has significant correlation among the degree of skelecton immature,fused segment length and spine lordosis.
3.Determination of Concentration of Netilmicin Sulfate in Human Serum by Ion-pair RP-HPLC
Hongwen WU ; Yazhou WANG ; Jinsheng LI
China Pharmacy 2007;0(35):-
OBJECTIVE:To establish an ion-pair RP-HPLC method for determination of the concentration of netilmicin sulfate in human serum.METHODS:The determination was performed on Luna C18 column with column temperature set at 40℃;the mobile phase consisted of acetonitrile-water (15∶85,pH 2.0,containing 10 mmol?L-1 sodium heptanesulfonate) at a flow rate of 0.8 mL?min-1.The detection wavelength was set at 205 nm.RESULTS:The linear range of netilmicin was 2~20 mg?L-1(r=0.997 6) with a recovery rate of 93.66%~96.05%.The intra-day and inter-day RSD were both less than 10%,respectively.CONCLUSION:The method is sensitive and simple with accurate and reliable results,and it is able to satisfy the requirement for the determination of serum concentration of netilmicin.
4.Phacoemulsification and posterior chamber intraocular lens implantation combined with trabeculectomy
Xinhua, SONG ; Li, CHANG ; Yazhou, JI
Chinese Journal of Experimental Ophthalmology 2001;19(3):271-272
ObjectiveTo evaluate the therapeutic effect of phacoemulsifcation and posterior chamber intraocular lens(IOL) implantation combined with trabeculectomy in patients with cataract and glaucoma.Methods26 cases(26 eyes)were theated by phacoemulsification and IOL implantation combined with trabeculectomy.Follow-up period was for 2~16 months.ResultsThe average intraocular pressure(IOP)was reducded from 24.82 mmHg preoperatively to 16.52 mmHg postoperatively.IOP was less than 21 mmHg in 88.46% eyes.Visual acuity was 0.3 or better in 80.77% of eyes during following-up.61.54% of eyes were found with functional filtering blebs.ConclusionTriple procedure is safe and suitable method for most patiants with glaucoma and cateract
5.Study on Promotion Effect of Recombinant Human Acidic Fibroblast Growth Factor on Wound Healing in Children by Multicenter Randomized Controlled Trials
Yuchang LIU ; Jianning LIU ; Yazhou LI
China Pharmacist 2015;(1):77-79
Objective:To study the promotion effect of recombinant human acidic fibroblast growth factor ( rh-aFGF) on wound healing in children with surgery or accident injury. Methods: Totally 206 cases of injured children were randomly divided into two groups, the treatment group was given rh-aFGF, and the control group was treated with basic fibroblast growth factor (bFGF). The ob-servation of wound healing, infection and fat liquefaction in the children was recorded in 7 days,and the modification of scar, pigmenta-tion and adverse reactions were observed in 6 months after the treatment. Results:After the 7-day treatment by rh-aFGF and bFGF, the healing rate respectively was 88. 4% and 74. 2%, and the residual wound area was (2. 2 ± 1. 1) cm2 and (3. 9 ± 2. 4) cm2,respec-tively. Six months after the treatment, the scar incidence rate of the treatment group and the control group was 27. 2% and 67. 5%, and the incidence of pigmentation was 30. 1% and 69. 9%, respectively. Conclusion:Rh-aFGF is more effective than bFGF in pro-moting wound healing in children with surgery or accident injury. It can effectively promote wound healing, shorten the healing time, and diminish the area of scar and pigmentation.
6.Analysis of digital mammography and clinical manifestations of rare diseases in male breast
Qiuxiang WANG ; Yazhou LI ; Pengyin HAN ; Guang YANG ; Zhigang LI
Journal of Practical Radiology 2016;32(4):536-538,561
Objective To probe the X-ray imaging features and clinical manifestations of some rare diseases in male breast.Methods The data of 12 patients with some rare diseases in male breast were collected.The X-ray manifestations and clinical features of the diseases were analyzed.Results The postoperative pathology showed the lipogranuloma in 1 patient,plasma cell mastitis in 2,secondary infection of epidermal cyst in 1,intraductal papilloma in 1,breast cancer in 6 (invasive ductal carcinoma in 4,poor-differentiated adenocarcinoma in 1,and mucinous carcinoma in 1),and breast lymphoma in 1.The digital mammography showed the intramammary solitary masses in 1 1 and multiple ones in 1.10 masses were located at the rear of the areola,and other 2 were opposite.Unclear edge of the lesion was found in 9,spiculation in 1,lobulation in 1,and micro-calcification in 1.Nipple retraction and areola skin thickening in 10 and enlarged axillary lymph node in 1 were also found.The total accurate rate of X-ray diagnosis was 41% (5/12),while that of breast cancer was 83.3%.The total misdiagnosis rate was 59% (7/12),and that of benign lesion was 80% (4/5).Conclusion The diseases in male breast are rare and various,and the X-ray and clinical manifestations are not specific.
7.Treatment of femur fracture in neonates using harness
Yuchang LIU ; Weifeng LIN ; Zhenwu YU ; Yazhou LI ; Hanlin WANG
Chinese Journal of Postgraduates of Medicine 2008;31(9):13-16
Objective To treat femur fracture in neonates using a new homemade harness designed and observe the effec of this harness. Methods Designed a new harness used in femur fracture in neonates,and used this harness in 7(8 femur fracture)csses,including 6 boys(7 femur fracture)and 1 girl,the age from 1 day to 12 days(average 4.7 days).Those cases included proximal thirds(2 cases)and middle thirds(6 cases)of femur fracture.The angle of fracture was from 44°to 83°(average 62.4°)before treatment. Results The angle of fracture was from 0°to 22°(average 14.0°)after treatment using the harness.Hespitalization was from 2 to 3 days.There were no skin sloughing or harness breaking off.All cases were followed up 6 to 36 months(average 21.3 months).All femur fracture healed in good alignment with leg-length discrepancy<1 cm.Movement of hip and knee was normal. Conclusions The harness is a better method to treat femur fracture of the proximal and middle thirds in neonates.Advantages of it include simply operation,minimal hospitalization,minimal cost,and easy nursing.
8.Modified surgery for cerebral palsy of both lower extremities with spastic diplegia
Hanlin WANG ; Yongyan YANG ; Yazhou LI ; Junzhong LUO
Orthopedic Journal of China 2008;16(1):34-38
[Objective ] To investigate the improvement of the surgical treatment effect on cerebral palsy with spastic diplegia by performing modified surgeries since 2004. [Method ] Twenty-three cases of severe cerebral palsy with spastic diplegia were operated, 14 male, 9 female; age 3 ~ 12 years; the average age of 5.7 years; their main symptoms were unable to stand and walk independently, with severe hypermyotonia of both lower extremities, and a scissoring type of gait when standing, hip and knee flexing contracture, ankle and foot equinovarus. Physical examination: there was hypermyotonia of the iliopsoas, adductor musculus, hamstrings, triceps surae, anterior and posterior tibial muscle, flexor pollicis longus and flexor digitorum longus. The muscle tone was 3 ~4 grade according to Ashworth criterion. Treatment: The intramuscular tenotomy, fascial division or sliding elongation were performed, to lengthen the tendon of the joint flexion contracture, the lateral half of anterior tibial muscle tendon was transferred laterally to balance the muscle force at the foot. Finally, both lower extremities were fixed by a new designed external frame, to straigthen the articular genu, keep both ankles and feet in neutral position, both lower extremities abducting 30°, and to correct all joint deformities. Family rehabilitation programs started after the external frame was removed 6 weeks later. [Result] All cases were followed up in 1 ~3 years with the average 2. 2 years. The results were evaluated as excellent, good and ineffective, according to correction of the joint deformities, the ability to stand and walk, and parent's satisfaction to the treatment. Of them 21 cases were excellent, 2 cases good, and no ineffective case. [ Conclusion ] For the severe cerebral palsy with spastic diplegia in children, reasonable release of the tight tendons of the multi-joint flexion contracture, balance of muscle force at the foot, correction of all deformities and fixation of the lower extremities with the new external frame, and long term of family rehabilitation after the surgery, are more effective treatment.
9.Analysis on mycoplasma pneumoniae infection status in children with respiratory tract infection in Haikou area during 2014
Xiaoming LI ; Zhixian LEI ; Manfang XIE ; Yazhou WANG
Chongqing Medicine 2017;46(12):1657-1658
Objective To analyze the epidemiological characteristics of Mycoplasma pneumoniae(MP)infection in children with acute respiratory tract infection in Haikou area and surrounding area to provide a scientific evidence for the prevention and treatment of MP infection in children.Methods A total of 1 699 children inpatients with acute respiratory tract infection in our hospital from 1 January to 1 December,2014 were collected.The serum MP antibody was detected.The MP infection status of different sites,genders,ages and months was retrospectively analyzed.Results Among 1 699 children patients with acute respiratory tract infection,the total positive rate of MP infection was 17.60%,in which male was 15.73% and female was 21.59%,the positive rate of female was higher than that of male with statistical difference(P<0.01).The lower respiratory infection rate was 18.75% and upper respiratory tract infection was 13.70%,the difference was statistically significant(P<0.05).The MP infection rates was common in children aged >1-4 years old,in which children aged >3-4 years old had the highest infection rate.MP infection was sporadic in the whole year and was highly epidemic in March and April.Conclusion MP was an important pathogen of acute respiratory tract infection for children in Haikou during 2014,and its epidemic characteristics were manifested by higher incidence in female than that in male.Children aged within 4 years old are a high onset group and MP infection occurs all year round,March and April are the relatively high onset period of MP infecting.
10.Modified Stoppa approach for acetabular anterior fractures
Guijian LI ; Yazhou CHEN ; Peijuan LIU ; Jiawu LUO
Chinese Journal of Orthopaedic Trauma 2017;19(2):173-175
Objective To discuss clinical efficacy of the modified Stoppa approach in the treatment of acetabular anterior fractures.Methods From January 2011 to December 2014,22 patients with acetabular anterior fracture were treated at our department.They were 14 males and 8 females,with an average age of 36.6 years (range,from 18 to 49 years).By the LetourneI-Judet classification system,there were 9 anterior wall fractures,12 anterior column fractures,and one transverse fracture.The modified Stoppa approach was used for fracture reduction under direct visualization in this cohort.Fixation with reconstruction plate was conducted after satisfactory reduction was confirmed by the X-ray examination.The operative duration,incision length,bleeding volume,fracture reduction quality,function of the affected hip and complications were recorded.Results In this cohort,the incision length ranged from 6 to 15 cm,averaging 9.5 cm;the intraoperative bleeding volume ranged from 100 to 1,000 mL,averaging 550 mL;the operative duration ranged from 40 to 160 minutes,averaging 126.2 min.The 22 patients were followed up for an average of 15.5 months (from 12 to 18 months).According to the Matta imaging evaluation,the fracture reduction was rated as excellent in 18 cases,as good in 3 cases and as poor in one,yielding an excellent to good rate of 95.5%.According to the Harris scoring system,the function of the affected hip was assessed at the final follow-up as excellent in 12 cases,as good in 9 cases,and as poor in one case,giving an excellent to good rate of 95.5%.Traumatic arthritis occurred in one case;there were no such complications as reduction loss or implant failure.Conclusion The modified Stoppa approach is a satisfactory one for the treatment of unstable acetabular anterior fractures,owning to its advantages like minimal invasiveness,simple dissection,excellent visual control of reduction and fixation,and a low rate of complications.