6.Manipulative reduction and external fixation with cardboard splint for the treatment of calcaneal fractures: a 60-case report.
China Journal of Orthopaedics and Traumatology 2014;27(7):545-550
OBJECTIVETo investigate the therapeutic effects of manipulative reduction for calcaneal fractures.
METHODSFrom January 2009 to June 2012, 53 cases (60 affected feet) of Sanders type I-IV calcaneal fractures were treated by manipulative reduction and external fixation with cardboard splint,including 45 males and 8 females with an average age of (33.5 +/- 1.54) years old ranging from 18 to 65. The course of disease ranged 0.5 h to 7 d. Before treatment the feet were swelling, ache and activity limitation in evidence, some feet were wide flat deformity, the cortical bone was broken in the imaging examination. All selected cases were evaluated using Creighton-Nebraska health foundation assessment scale for fractures of calcaneus.
RESULTSAll cases were followed up at 12 months after treatment, 13 feet got excellent curative effect, 34 good, 11 moderate and 2 poor.
CONCLUSIONManipulative reduction for Sanders type I-IV calcaneal fractures could get excellent curative effect. Manipulative reduction for calcaneal fractures could avoid surgical trauma while assure high curative effects. Manipulative reduction is not only economical and easy therapy, but also can restore maximum function of the calcaneus with few complications and facilitate early rehabilitation of ankle and joint function.
Adolescent ; Adult ; Aged ; Calcaneus ; injuries ; surgery ; External Fixators ; Female ; Fractures, Bone ; rehabilitation ; surgery ; Humans ; Male ; Manipulation, Orthopedic ; methods ; Middle Aged ; Splints
7.The advanced genomics research of neurofibromatosis type 1
Ke, YIFENG ; Hao, RUI ; Zhang, HONG
Chinese Ophthalmic Research 2010;28(2):184-187
Neurofibromatosis type 1 is a term of Von Recklinghausenan.It is an autosomal dominant inherited disease which derived by neural crest cell.Prevalence of this disease is 1/3000 1/3500 and is a disease with the highest mutation rate.The pathogenesis of neurofibromatosis type 1 is associated with the deficiency of NF1 gene.Recently,the genetics and genomics research of neurofibromatosis make a great progress.With the development of gene linkage and position cloning technology,the gene sequence of neurofibromatosis type 1 has been found.Recent research of genetics and genomics of NF1 and the structure and function,abnormal expression,the relation of genotype and phenotype,the mutation sensitivity domain of NF1 gene were reviewed.
8.Clinical evaluation of different diopter myopia after epipolis laser in situ keratomileusis
Ke, WU ; Zhi-min, LI ; Hao, GU
Chinese Journal of Experimental Ophthalmology 2011;29(8):743-746
Background Epipolis laser in situ keratomihusis(Epi-LASIK) is an potential surgery for myopia because it synthesize advantages of LASEK and LASIK. But its clinical effectiveness and safeness is remarkable.Objective This study was to evaluate the clinical curative effects and safeness of Epi-LASIK for myopia in different diopter of population. Methods Retrospective study was designed for 208 eyes of 104 patients who underwent EpiLASIK for the correction of myopia. The patients were divided into two groups according to preoperative diopter:lower myopia group( ≤ -6.00 D, 111 eyes) and high myopia group ( >-6.00 D,97 eyes). The time of epithelial healing, postoperative syndrome, postoperative visual acuity, refraction, intraocular pressure (IOP) , the safe index, the efficacy index and haze were evaluated at 1,3,6,12 months postoperatively. The written informed consent was obtained from each individual before surgery. Results After operation, 20 eyes ( 18.02% ) of lower myopia group and 29 eyes (29.90%) of high myopia group had obvious pain, presenting statistically significant difference between two groups (X2 = 4. 060, P<0.05 ). The mean time of epithelial healing was (5.49±0. 83 )days in lower myopia group and (5.85± 0.68 )days in high myopia group with a delayed epithelial healing time in high myopia group( u= 3. 377 ,P<0.05 ).One year after the treatment,the uncorrected visual acuity( UCVA ) ≥ 1. 0 was 90. 99% ( 101 eyes) in lower myopia group and 75.26% ( 73 eyes) in high myopia group, and 9.91% ( 11 eyes) and 15.46% ( 16 eyes) of the eyes improved byl line or more in best spectacle corrected visual acuity(BCVA) ;whereas 3.60% (4 eyes)and 6. 18% (6 eyes)lost a line or more. 91.89% ( 102 eyes) and 85.57% (83 eyes) in both groups gained within 1.00 D of the attempted correction. The safety index and efficacy index were 1.04 and 0. 98 in lower myopia group,and 1. 01 and 0. 96 in high myopia group without statistically significant difference( P>0. 05 ). haze occurred in 6 eyes in lower myopia group and 9 eyes in high myopia group and the difference in haze grading was not statistically significant between two groups ( P>0. 05 ). The high intraocular pressure appeared in 10 eyes and 9 eyes in low myopia group and high myopia group respectively during the fellow up duration and back to normal after topical use of timolol. Conclusion Epi-LASIK is an effective and safe method for correction of different diopters of myopia because of its mild symptom and lower incidence of haze.
9.Changes in near vision and stereopsis after orthokeratology
Yan, KE ; Jing, SIMA ; Hao-Jiang, YANG
International Eye Science 2014;(12):2158-2161
AlM:To provide a proper assessment of the clinical use of orthokeratology by observing and analyzing the ocular biometric changes of the eyes and the stereopsis of the myopia.
METHODS:Sixty eyes from 30 myopia ( from 8 to 17 years old) were fitted with orthokeratology. Stereopsis, visual acuity, near visual acuity, central corneal thickness, anterior chamber depth, average anterior corneal refractive power ( K value ) , and intraocular pressure were measured before the orthokeratology treatment and 3mo after it. Refraction was expressed as spherical equivalent ( SE) , and the subjects were divided into 3 groups according to refraction: low myopia group (SE<-3.00D), moderate myopia group (-3. 00D≤SE<-6. 00D), and high myopia group (SE≥-6. 00D).
RESULTS:All subjects had significant improvements in visual acuity and near visual acuity 3mo after the orthokeratology treatment (P<0. 01). ln the comparisons of any pair of the groups, there was no significant difference in the near visual acuity ( P>0. 05 ). Three months after the orthokeratology treatment, Naked eye near stereoacuity values of all subjects were decreased (P<0. 01). There was no significant difference in the comparisons of the differences of stereopsis between any pair of the groups ( P> 0. 05 ). There was significant correlation in stereopsis and anisometropia ( Pearson coefficient r = 0. 778, P < 0. 01 ). And with greater anisometropia, the stereopsis was higher. All subjects had significantly lower K values than before 3mo after the orthokeratology treatment ( P< 0. 01 ). There was no significant difference in central corneal thickness, anterior chamber depth, and intraocular pressure (P>0. 05).
CONCLUSlON:Orthokeratology could lower K value in a short time and change the corneal curvature to correct myopia, to improve visual acuity and near visual acuity. lt also has an influence on improving stereopsis. There are no obviously changes in patients' central corneal thickness, anterior chamber depth or intraocular pressure after the orthokeratology treatment, making it a safe and effective treatment for adolescent.
10.Blue light-induced replicative senescence of rat retinal pigment epithelial cells
Yifeng KE ; Song CHEN ; Rui HAO
Chinese Journal of Ocular Fundus Diseases 2009;25(6):462-465
Objective To investigate the relationship between exposure intensity and illumination time of blue light and replicative senescence of rat retinal pigment epithelial (RPE) ceils.Methods Thirty-six 12-14 weeks Wistar rats were kept in the cage with a blue-light bulb [(450±10) nm],and were randomly divided into four groups (no light,nature light,500 lx light and 1000 lx light illumination),each has nine rats.The rats in each group were further divided into three subgroups according to illumination time (one month,two months or three months).Eyeballs were collected after intraperitoneal injection of 10% chloral hydrate.The right eye of each rat was embedded in paraffin and sectioned for hematoxylin-eosin (HE)staining,while frozen sections of the left eye were stained for the senescence-associated β-galactosidase (SA-β-Gal).The data were analyzed by SPSS11.5 statistical software.Results The amounts of SA-β-Gal positive RPE cells were significantly different between all groups under the same illumination time 17 (P=0.000),and between all subgroups of different illumination time with same exposure intensity (P<0.01)except for the control group (no light).Conclusion Blue-light can induce replicative senescence in rat RPE cells in an intensity and time-dependent manner.