胫骨远端锁定加压钢板与解剖型钢板内固定治疗Pilon骨折的疗效比较

目的:研究胫骨远端锁定加压钢板(LCP)内固定与解剖型钢板内固定术治疗Pilon骨折的临床疗效,为其治疗提供临床依据。方法:选择2010年1月~2014年12月本院收治的Pilon骨折患者共90例,按照随机数字表法随机分为LCP组(采用胫骨远端LCP内固定治疗)和对照组(采用解剖型钢板内固定治疗),比较两组患者手术时间、术中出血量、骨折愈合时间和术后疗效。结果:LCP组患者手术时间、术中出血量和术后愈合时间均小于对照组,差异有统计学意义(P0.05);LCP组患者术后疗效总优良率为89.6%高于对照组的76.2%,差异有统计学意义(P0.05)。结论:胫骨远端LCP内固定治疗Pilon骨折,具有创伤小、手术时间和术后愈合时间短、术中出血量少、术后疗效总优良率高的优点,是治疗Pilon骨折的有效方法     

PFNA与解剖型锁定钢板在老年股骨粗隆间骨折中的疗效观察

目的探讨PFNA与解剖型锁定钢板治疗老年股骨粗隆间骨折的临床效果。方法将我院收治的120例老年股骨粗隆间骨折手术患者分为两组,对照组使用解剖型锁定钢板内固定方式治疗,观察组使用PFNA内固定方式治疗,观察比较两组患者的手术时间、术中出血量、切口长度、骨折愈合时间、术后下床活动时间等以及髋关节功能Harris评分情况。结果观察组的手术时间、术中出血量、切口长度、骨折愈合时间、术后下床活动时间均低于对照组,组间比较差异有统计学意义(P0.05);髋关节功能Harris评分比较,观察组明显高于对照组,差异有统计学意义(P0.05)。结论老年股骨粗隆间骨折患者行PFNA内固定方式治疗的效果明显优于解剖型锁定钢板内固定,具有创伤小、负重时间短、固定牢靠等优点,可作为老年股骨粗隆间骨折治疗的首选方式。     

分阶段闭合复位微创内固定与解剖型钢板内固定术治疗Pilon 骨折的疗效比较

目的:对比分阶段闭合复位微创内固定与解剖型钢板内固定术治疗Pilon骨折的临床疗效。方法:选择自2013年4月至2015年8月我院骨科收治的Pilon骨折患者122例,按照随机数表法,将患者分为对照组和研究组,每组61例。对照组患者行解剖型钢板内固定术治疗,而研究组患者行分阶段闭合复位微创内固定术治疗。统计分析两组患者的手术指标,并通过放射学及踝关节功能共同评价手术效果,术后进行半年的随访,对比两组患者并发症的发生情况。结果:研究组患者的手术时间、出血量、骨折愈合时间及住院时间均明显低于对照组,且差异均具有统计学意义(P0.05);研究组患者放射学及踝关节功能的优良率显著高于对照组(P0.01);研究组患者并发症发生率为4.92%(3/61)明显低于对照组的14.75%(9/61)(2=5.194,P=0.031)。结论:相比解剖型钢板内固定术,分阶段闭合复位微创内固定术治疗Pilon骨折临床效果更显著,并并发症的发生率低,可以作为治疗Pilon骨折的首选方法之一,值得在临床上推广使用。     

手术治疗Pilon骨折体会（附38例报告）

目的评价手术治疗Pilon骨折的临床疗效。方法1998年6月-2006年6月应用AO技术对38例Pilon骨折行切开复位．支撑钢板及螺钉内固定治疗。术后随访1～3年,按Mazur标准进行功能评价。结果38例患者总优良率9z％,其中C1型18例,C2型15例,C3型5例。3例发生切口感染,4例出现创伤性踝关节炎。结论临床治疗效果与骨折类型及治疗方法有关,运用AO技术治疗Pilon骨折可以取得满意的疗效。     

胫前减张切口结合锁定加压钢板内固定治疗老年胫腓骨远端骨折的疗效

目的:探讨胫前减张切口结合锁定加压钢板(LCP)内固定治疗老年胫腓骨远端骨折的临床效果。方法:选择2014年3月-2015年3月本院收治的老年胫腓骨远端骨折患者100例,根据手术方式不同分为减张组和内固定组。减张组行胫前减张切口结合锁定加压钢板内固定术,内固定组行锁定加压钢板内固定术。观察并比较两组患者的手术时间、术中出血量、住院时间、骨折愈合时间、并发症的发生率以及AOFAS评分。结果:两组手术时间、术中出血量及住院时间比较,差异无统计学意义(P0.05);减张组患者骨折愈合时间短于内固定组,并发症的发生率低于内固定组,差异具有统计学意义(P0.05);两组患者AOFAS评分比较,差异无统计学意义(P0.05)。减张组患者的手术优良率高于内固定组,差异具有统计学意义(P0.05)。结论:胫前减张切口结合LCP内固定治疗老年胫腓骨远端骨折的临床效果显著,值得推广应用。     

锁定钢板与空心螺钉治疗肱骨大结节骨折的疗效比较

目的:比较锁定钢板与空心螺钉治疗肱骨大结节骨折的临床疗效及安全性。方法:对2010年1月至2013年1月手术治疗的81例单纯肱骨大结节骨折患者进行回顾性分析,患者均行切开复位内固定,固定方式分别采用锁定钢板与空心螺钉。围手术期观察指标为:手术时间、术中出血量、住院天数等。术后按时间节点随访,至少为术后1年,最终随访时给予X线摄片以观察愈合情况,采用ASES评分、Constant-Murley评分及VAS评分评估肩关节功能及疼痛程度。结果:63例患者获得随访,随访时间1~3年,平均1.9年。钢板组(33例)ASES评分(91.01±4.88)分、Constant-Murley评分(90.21±3.97)分、VAS评分(0.58±0.63)分,满意率为93.94%;螺钉组(30例)ASES评分(80.58±6.72)分、Constant-Murley评分(80.67±7.25)分、VAS评分(1.08±0.68)分,满意率为73.33%,差异均有统计学意义(P0.05)。结论:肱骨近端锁定钢板治疗单纯肱骨大结节骨折固定可靠,安全性较高,肩关节功能恢复好,并发症发生率较低,可获得较为满意的临床效果。     

锁骨远端解剖锁定钢板结合Nice结环扎与锁骨钩钢板治疗Neer Ⅱ型锁骨远端骨折的疗效比较研究

摘要 目的：以锁骨钩钢板为对照,探讨锁骨远端解剖锁定钢板结合Nice结环扎治疗Neer Ⅱ型锁骨远端骨折的临床疗效,为临床Neer Ⅱ型锁骨远端骨折的治疗提供合理方案。方法：回顾性分析自2017年1月~2020年1月宿迁市第一人民医院收治的38例Neer Ⅱ型锁骨远端骨折患者的临床资料,按内固定方式不同进行分组,其中18例采用锁骨远端解剖锁定板结合Nice结环扎固定（观察组）,20例采用锁骨钩钢板内固定（对照组）。记录两组手术时间、术中出血量、骨折愈合时间、术后并发症,并于术后3个月和6个月时进行视觉模拟评分法（VAS）评分及肩关节功能Constant-Murley和UCLA评分。结果：38例患者手术均顺利完成,两组手术时间及术中出血量比较无差异（P>0.05）。38例患者手术均获得随访,两组骨折愈合时间比较无差异（P>0.05）;观察组并发症发生率（11.11%）低于对照组（40.00%）（P<0.05）。观察组术后3个月和6个月的VAS评分均低于对照组,而Constant- Murley和UCLA评分均高于对照组（P<0.05）。结论：Neer Ⅱ型锁骨远端骨折采用锁骨远端解剖锁定钢板结合Nice结环扎治疗固定效果确切,患者术后肩关节功能恢复良好,并发症少,痛疼程度轻,相较于锁骨钩钢板治疗,其优势明显,可作为临床治疗Neer Ⅱ型锁骨远端骨折的推荐方案。     

锁定加压钢板与三叶草钢板内固定治疗老年肱骨近端骨折比较分析

目的:探讨锁定加压钢板与三叶草钢板内固定治疗老年肱骨近端骨折的临床效果.方法:老年肱骨近端骨折分别采用锁定加压钢板治疗44例,三叶草钢板治疗48例,随访观察并比较二者手术时间、术中出血量、术后引流量、住院时间、肩关节Neer评分、术后并发症等指标.结果:二种治疗方法在Neer评分优良率和住院时间方面无明显差异(P>0.05).但在手术时间、术中出血量、术后引流量和术后并发症,锁定加压钢板优于三叶草钢板(P<0.05).结论:锁定加压钢板内固定方法可靠,骨折愈合率高,创伤小,并发症少.     

锁定钢板与解剖钢板内固定在pilon骨折治疗中的应用比较

目的探讨锁定钢板与解剖钢板内固定在pilon骨折治疗中的应用效果。方法选取我院收治的pilon骨折患者91例为研究对象,根据治疗方式不同分为对照组45例和观察组46例。对照组予以解剖钢板内固定治疗,观察组患者采用锁定钢板内固定治疗,并对两组患者的治疗效果进行比较分析。结果观察组患者的手术时间、骨折愈合时间、住院时间、下地负重时间均明显短于对照组,差异具有显著统计学意义(P0.05)。观察组的优良率为91.1%,对照组的优良率为64.4%,两组比较差异有统计学意义(P0.05)。两组患者治疗前各项生活质量评分无明显差异(P0.05);治疗后,观察组的生理功能、身体疼痛、总体健康、活力、情感职能、心理健康评分均明显优于对照组(P0.05)。结论锁定钢板内固定在pilon骨折治疗中的应用效果优于解剖钢板内固定,值得临床推广应用。     

锁定加压钢板治疗四肢骨折的应用价值探讨

目的探讨锁定加压钢板治疗四肢骨折患者的应用价值。方法选取2012年6月~2016年6月我院收治的100例四肢骨折患者为研究对象,按随机数字表法分为观察组对照组各50例,观察组根据患者状况采用切开或有限切开锁定加压钢板内固定,对照组采用普通钢板螺钉内固定,并对两组患者的手术时间、术中出血量、疼痛评分、骨折愈合时间、并发症发生情况以及半年后的生活质量评分进行比较。结果两组患者的手术时间以及术中出血量比较,差异无统计学意义(P0.05);两组患者在疼痛评分、骨折愈合时间、并发症发生率以及半年后的生活质量评分比较,观察组明显优于对照组,差异均有统计学意义(P0.05)。结论采用锁定加压钢板内固定治疗四肢骨折患者的临床治疗效果明显优于普通钢板治疗,手术创伤小,痛苦小,并发症发生率低,恢复快,有效提升患者的生活质量,具有较高的临床推广应用价值。     

Characteristics of the membranes of the pellicle of the ciliatePseudomicrothorax dubius

Summary The membranes of the pellicle of the ciliatePseudomicrothorax dubius are investigated using thin section electron microscopy and freeze-fracture replicas. The plasma membrane is covered by a surface coat and is connected to the outer alveolar membrane by short, sometimes branched, bridges. The inner alveolar membrane is coated on both sides. The epiplasm lies in intimate contact with the cytoplasmic surface of this membrane, and there is a corresponding deposit on the other surface. This deposit is regularly striated.The epiplasmic layer and the alveoli are interrupted at sites of cytotic activity,e.g., the attachment sites of trichocysts, the cytoproct, and the parasomal sacs. The striated deposit ends where the epiplasm ends, indicating a direct relationship between these two epimembranous layers.There is a deposit along the sides of the first part of the tip of the trichocysts, and in this region the trichocyst membrane is free of intramembranous particles.The membrane of the parasomal sacs has a coat on both surfaces. That on the extraplasmic surface is similar to the surface coat of the plasma membrane. The origin of the cytoplasmic coat is unknown. The cytotic activity of these sacs is indicated by their highly irregular profiles.     

The early development of the tail and the transformation of the shape of the nucleus of the spermatid of the domestic fowl,Gallus gallus

Summary The differentiation of the spermatid, especially in reference to the formation of the flagellum, and transformation of the shape of the nucleus was investigated in the domestic fowl.In the early stage of the spermatid, a prominent Golgi apparatus appears around the centrioles. The Golgi vesicles then surround the axial-filament complex which develops from the distal centriole. These vesicles fuse to form continuous membrane at the earliest stage of flagellar formation, and in the succeeding stage Golgi lamellae are attached to the plasma membrane of the developing flagellum. From these observations, it is assumed that Golgi apparatus may be a source of the membrane system of the flagellum.The microtubules distributed around the nucleus form the circular manchette. The anterior region of the nucleus with the manchette is cylindrical in shape and the posterior region without it remains irregular in shape. When the circular manchette has been completed, the whole nucleus acquires a slender cylindrical shape. The circular manchette then changes into the longitudinal manchette. The nuclei of spermatids without a longitudinal manchette are abnormal in shape. In view of these observations it is assumed that the nuclear shaping of the spermatid may be accomplished by circular manchette and the maintenance of shape of the elongated nucleus by longitudinal manchette.The authors wish to thank Mr. Takayuki Mori for his helpful suggestions and technical advices     

Characterization of the composition of the aqueous humor and the vitreous body of the eye of the frog Rana temporaria L

This study aimed to analyze the aqueous humor (AH) and the vitreous body (VB) of the eye of the adult frog Rana temporaria L. as a representative species of amphibians, which lead a semi-terrestrial life. The presence of collagen, albumin, uric acid and electron donors was shown in both media; however, there are slight differences in their concentrations. To determine collagen, a spectral-fluorescent probe, cyanine dye, was used. The presence of collagen in AH of the frog was found at the first time. The total content of electron donors (ascorbic and uric acids, tryptophan, and tyrosine) in VB and HA was roughly estimated at ~ 1.5 × 10^− 4 mol/L. Both VB and AH absorb light in similar UV regions. The total protein and albumin contents in AH were found to be somewhat higher than those in VB. The uric acid content was at an equally low level in both intraocular media. It is supposed that the similarity of VB and AH compositions shown in this work is due to some exchange between VB and AH contents in the course of accommodation. The role of intraocular fluids in physiological functions of the eye and in protecting the retina against UV light is discussed.     

Observations on the permeability of the choriocapillaris of the eye

Summary The choriocapillaris is a fenestrated capillary bed located posterior to the retinal pigment epithelium. It serves as the main source of supply to the photoreceptors, retinal pigment epithelium, and other cells of the outer retina. The permeability of these capillaries to intravenously injected ferritin (MW — approx. 480,000; mol. diam. 11 nm) was examined in the mouse, rabbit, and guinea pig, each of which is characterized by a different type of retinal vascularization. In all three species, the bulk of the ferritin remained in the capillary lumina, where it appeared to be blocked at the level of the diaphragmed fenestrae. Some ferritin was present in endothelial cell vacuoles. The results confirm previous work on the rat choriocapillaris and indicate that the barrier function of the choriocapillary endothelium is present even among species in which the retinal circulation differs significantly.Supported by NIH grant EY03418