Radiographic assessment of the relative lengths of the bones of the fingers of the human hand

The study assessed whether a relationship existed between the lengths of the phalanges of the fingers of the hand. The centres of rotation of the joints in each finger were determined by dissection of cadaveric hands. Using these data, the distances between the joint centres was determined on anteroposterior hand X-rays taken for clinical purposes. The study has shown that, for all the fingers, there is a ratio of 1 for the distance between the metacarpophalangeal and proximal interphalangeal joint and the distance between the proximal interphalangeal joint and the finger tip. The ratio for the distances between the interphalangeal joints and the distal joint and the tip approximates to 1.3 for the index, middle and ring fingers and to 1.0 for the little finger. No evidence was found to support Littler's hypothesis that the interarticular distances of the finger follow the Fibonacci sequence.     

Influence of the design of the prosthesis on the outcome after hemiarthroplasty of the shoulder in displaced fractures of the head of the humerus

We reviewed 39 patients with displaced three- and four-part fractures of the humerus. In 21 patients (group A) we had used an anatomical prosthesis for the humeral head and in 18 (group B) an implant designed for fractures. When followed up at a mean of 29.3 months after surgery the overall Constant score was 51.9 points; in group A it was 51.5 and in group B 52.4 points. The subjective satisfaction of the patients was assessed using a numerical rating scale and was similar in both groups. In group A complete healing of the tuberosities was found in 29% and 50% in group B. Partial integration was seen in 29% of group A and in only one patient in group B, while resorption was noted in 43% of group A and 44% of group B. The functional outcome was significantly better in patients with complete or partial healing of the tuberosities (p=0.022). The specific trauma prosthesis did not lead to better healing of the tuberosities. The difference in clinical outcome obtained by the two designs did not reach statistical significance.     

Functional anatomy of the vagina fibrosa of the flexors of the fingers

The flexor tendon sheaths of 40 fingers were investigated to determine which classification of the annular and cruciform pulleys seems to be justified. The classification of Kleinert et al. (1981) into five annular and four cruciform pulleys was the most consistent with our results. The constant presence of the mid-phalangeal annular pulleys in zones III and VII shows their major role in preventing the tendons from bow-stringing. The cruciform pulleys seem to allow the tendon sheath to deform during flexion.     

Homoplasty of the tendon of the long head of the biceps brachii]

The authors have used homotendons preserved by freezing for replacement of tendinous defects of various localization and of a considerable extent. The results of repair by means of homoplasty of inveterate tendon injuries of the humeral long bicipital head are reported. The technic of surgical therapy is described. The elaborated method was employed in 18 patients. The study of late results from 6 months to 2 years has evidenced that these were good in two thirds of patients under examination.     

改良小腿内侧筋膜蒂皮瓣的临床应用和筋膜蒂位置分区的研究

目的 讨论在小腿不同分区内改良小腿内侧筋膜蒂皮瓣的设计及临床效果. 方法 自2005年1月至2008年2月,将小腿均分为三个区,按皮瓣筋膜蒂位置的分区不同分别采用逆行或顺行的改良小腿内侧筋膜蒂皮瓣修复膝前、小腿及足踝部软组织缺损45例.皮瓣面积最大25.0 cm×10.0cm,最小5.0 cm×3.0 cm. 结果 43例皮瓣完全成活,创面一期愈合;小腿上1/3内有2例皮瓣远端部分坏死,经换药后愈合.术后随访4～20个月,皮瓣颜色及质地好,外形及功能恢复满意. 结论 改良小腿内侧筋膜蒂皮瓣设计灵活、切取简单,不牺牲主干血管,血供可靠,可根据皮瓣筋膜蒂位置的不同选择合适皮瓣,是一种修复下肢软组织缺损的理想皮瓣.     

指动脉中段背侧支岛状皮瓣的设计与应用

目的 探索一种修复第2～5指远节皮肤缺损的方法。方法 以指固有动脉中段背侧支为蒂,设计手指中节指背岛状皮瓣。如需重建指腹感觉,在切取皮瓣时,则应于皮瓣近端保留适当长度的指固有神经背侧支（小指为指背神经）,以便与伤指指固有神经断端吻合。2005年2月至2010年5月,应用此方法修复54例手指远节皮肤缺损,共61指,其中指腹缺损35指,指端缺损26指。结果 皮肤缺损最大面积2.2 cm ×2.5 cm,皮瓣切取最大面积2.4 cm ×2.7 cm。61指皮瓣全部成活,3指术后2天皮瓣远端出现水泡,未予以处理。术后7d水泡开始萎缩吸收,术后14 d水泡消退,皮瓣成活。54例均获得随访。随访时间5个月～1年10个月,平均11个月。皮瓣质地色泽好,外形良好,指腹较饱满,恢复痛温觉,两点辨别距离6～9 mm。按感觉功能评定标准为S4。患指指间关节活动正常。结论 指动脉中段背侧支岛状皮瓣,是一种较理想的修复远节手指皮肤缺损的方法。     

下颌全牙弓后移量及最后界的测量

目的：研究下颌牙弓的有效后移量及找寻下颌牙弓移动的后界。方法：选取涉及拔除下颌第三磨牙或下颌第三磨牙缺失的病例18例（男6例,女12例）。采用种植支抗牵引下牙弓向远中,治疗完成时所有病例均明确到达下颌牙弓后界,即下颌第二磨牙远中到达下颌升支前缘软组织交界处。应用治疗前后的曲断片测量下颌第二磨牙远中到升支前缘的距离。结果：下颌第二磨牙后移量为（3.49±1.21）mm;治疗后磨牙后间隙的长度为（4.43±0.97）mm。结论：下颌牙弓可确定性地实现整体后移;最大后移量由磨牙后间隙的长度决定;其最后界止于下颌第二磨牙远中与下颌升支前缘软组织交界处。     

Analysis of the impact of the course of hydration on the mechanical properties of the annulus fibrosus of the intervertebral disc

Purpose

The aim of this study was to determine the impact of free hydration on the mechanical parameters of the annulus fibrosus (AF) of the intervertebral disc (IVD), determined in a standard manner. Attention was also given to the hydration occurring in real time and geometric changes resulting from swelling of the AF.

Methods

Uniaxial tensile tests of multilayer samples of the AF with bone attachment were performed for two groups: samples subjected to 30 min of hydration prior to the mechanical test, and control samples, which were not subjected to additional hydration.

Results

As a result of hydration, the values of both the failure stress (σ _UTS) and the tensile modulus (E) were lower than in the control group. A decrease in these values was observed for the AF from both the anterior and posterior parts of the IVD.

Conclusions

The tests showed a significant dependence of the determined mechanical parameters on the cross-sectional area. The larger the cross-sectional area, the lower the obtained value of stress. By contrast, the value of the stiffness coefficient is independent of the cross-sectional area. The differences in mechanical parameters are related mainly to water absorption into structures of the AF during hydration. This is confirmed by microscopic analysis of geometric dimensions of the AF during hydration conducted in real time. The greatest changes occurred in the radial direction, where the thickness increased by 2.05 mm, while in the axial direction the main change concerned an increase in height by 0.69 mm. There were negligible changes in the circumferential direction.

     

Evaluation of the use of the Flexiblade

The Flexiblade is a laryngoscope which has a 'flexible' blade. The 'front' half of the blade can be moved in an anterior direction during laryngoscopy, enhancing the view of the glottis. The degree of movement can be controlled with the lever. We studied 200 ASA 1 and 2 adult patients requiring tracheal intubation and the patients acted as their own controls. The view of the larynx was improved in 93% of the cases when the vocal cords were not completely visible at laryngoscopy with the lever in the neutral position. Ninety-seven per cent of patients with a Cormack and Lehane grading of 2 at normal laryngoscopy were transformed to grade 1 when the lever of the Flexiblade was depressed and 84% of cases with a grading of 3 were transformed to grade 2 or 1. In four patients, there was deterioration in the view of the cords: three patients with grade 1 were transformed to grade 2 and one with grade 2 to grade 3. There was no improvement in one case with grade 2 and three with grade 3.     

弹性义龈的不同修复设计对牙周菌群的影响研究

目的:通过对两种不同设计的弹性义龈修复前后牙周菌群变化的观测探讨弹性义龈对严重牙龈退缩患者修复治疗的效果。方法:30例严重牙龈退缩患者经系统性牙周治疗后按弹性义龈修复方式随机分为A、B两组,分别提取修复治疗前后各观察时段的龈沟液做细菌学检查。结果:A型设计组弹性义龈修复后不同时期的细菌学检查结果变化均大于B型设计组,差异有统计学意义。结论:B型设计的弹性义龈由于与邻牙接解面积小,对牙周生态系的影响相对较小,对患者牙周健康的保持更为有利,是一种较为理想的治疗严重牙龈退缩的修复方法。     

Results of the treatment of fracture of the odontoid process of the axis

At the Rehabilitation Institute in Konstancin there were 80 patients treated due to the fracture of the dens epistrophei within the years 1970-1986. In all the cases the fracture was within the base of the dens. More than 50% of the patients were over 50 years of age at the time of injury. On admission about 34% of patients had neurological disturbances of various degree manifested by paresis of the extremities. The leading cause of spine injury were falls from a height (60%), particularly from a horse-cart. In 55% of cases the injury was through extension mechanism. Surgical treatment was applied in 35 cases (29 cases of posterior fusion of CI-C1I by bone grafting and wire loop, 6 cases of axis dens and vertebral body CI1 fixation by AO screw, by B?hler method). The remaining 45 cases were conservatively treated. The paper presents the radiological results of conservative and surgical treatment as well as an analysis of the neurological recovery.     

Osteoarthritis of the Hip and Fractures of the Proximal End of the Femur

The purpose of this investigation was to verify a long-standing clinical observation that patients with fracture of the proximal end of the femur have less evidence of osteoarthritic changes in their hip joints than would have been expected in patients of similar age groups. The radiographs of 342 patients with fractures and those of 157 controls were examined. The statistical results gave uncontroversial evidence that the incidence of osteoarthritic joints was lower in the fracture group. The difference was even greater with severe osteoarthritic changes.

This suggests that patients with osteoarthritis have a “better quality” of bone. They are less likely to be suffering from osteoporosis and less liable to fractures of the proximal end of the femur.     

Ultrastructure of the urethra of the Mongolian gerbil

OBJECTIVE: The urethra is the main port of entry of sexually transmitted pathogens. However, papers on the morphology of the urethra are scarce. The Mongolian gerbil is a rodent native of the Mongolia and China and has been utilized as a laboratory animal since the 1960s. This work describes the ultrastructure of the urethra of the Mongolian gerbil to provide data for future experimental studies. METHODS: The urethra of ten adult male gerbils was studied by transmission electron microscopy. RESULTS: The epithelium of the pelvic urethra possesses two cell types: I and II, without the formation of cellular layers, while the penile urethra possesses cellular layers: basal, intermediate and superficial. The urethra presents neurosecretory cells belonging to the amine precursor uptake and decarboxylation system. CONCLUSIONS: The urethral epithelium of the gerbil is a neurosecretory epithelium, part of the amine precursor uptake and decarboxylation system.     

Fiberendoscopy in the diagnosis of the pathology of the ileal conduit

The advantages of the exploration with flexible fiberendoscopy in the pathologies of the ileal conduit, as in hematuria, are commented. The method to be followed, as well as the results of the explorations in 2 patients are evaluated. This method has proved to be highly advantageous compared with the standard methods.     

Quantification of the diameter of muscular fibres in the course of the development of the quadriceps]

Muscle biopsies were taken from the medium portion of the vastus lateralis of a hundred fetuses (aged between 10 and 40 weeks), children, adolescents and adults without any neuro-muscular disease. Diameters of the muscle fibers were measured with a Leitz ASM 68K on frozen sections which had been stained for myofibrillar ATPase. The results have been expressed as average diameters and histograms. The results demonstrated a gradual increase in diameter of the fibers during fetal development. At the birth, the average diameter of the type I and II fibers is 10-15 microns. Growth continues during postnatal development up until puberty, when the fibers reach their final diameter of 60-65 microns. Analysis of the histograms shows that before 18 weeks of gestation, there is a large dispersion in the diameter of the fibers. The first type I fibers are larger than the others and correspond to Wohlfart type b fibers. This is followed by the appearance of a second population of smaller type I fibers. These fibers gradually increase in diameter and one observes a homogenous population of type I fibers at the birth.     

肘部尺神经卡压症

目的 :探讨肘部尺神经卡压症的术式及并发症。方法 :8例采用单纯松解术 ,3 0例采用前置术 ,对所有病人从struths弓到屈指深肌腱膜进行探查松解 ,术中保护尺神经血供。结果 :尺神经在肘部多处可受到卡压 (平均 2 4处 )。随访平均 2 2个月 ,按 2 0 0 0年手外科学会周围神经功能评价标准评价 ,优良率 86 8%。神经卡压症状在1年内手术术后疗效好。结论 :手术对尺神经卡压的 5个部位都应进行探查、松解。根据不同的病例选择前置或单纯的松解术。     

静脉输注甘露醇开放血脑屏障对抗生素透过血脑屏障的影响

目的　通过快速静脉输注甘露醇可逆性开放血脑屏障 (BBB) ,探知此方法能否增加抗生素透过BBB的量 ,在何时达到最高峰 ,其通透量增加后临床上有无不良反应。方法　采用自身配伍设计 ,共 6个样本组。对照组仅使用抗生素 ;其余 5组分别在使用甘露醇前 60、3 0min ,同时使用甘露醇后 3 0、60min使用抗生素 ,各组皆取使用抗生素后 1h的脑脊液测其抗生素浓度。抗生素选用头孢三嗪。结果　测量值经过q检验 ,经 2 0 %甘露醇处理前后的CSF中的头孢三嗪浓度差异有非常显著性。全组患者经临床观察未出现神经系统的不良反应。结论　经静脉快速输注2 0 %甘露醇后可以使透过BBB的水溶性抗生素的量增加 ,两者使用的顺序是在抗生素使用 3 0min内即给予甘露醇快速滴注。该方法不会增加低神经毒性抗生素在中枢神经系统的不良反应。     

Evaluation of the results of synovectomy of the knee joint performed in the early period of the rheumatoid process

The authors analyzed the results of 77 early knee synovectomies in 65 patients with rheumatoid arthritis, performed in 1976-1987. Special attention was paid to pain, exudate, range of motion, flexion contracture, instability, ability to walk, and radiological changes in the Larsen's scale. The patient's subjective evaluation and the surgeon's intraoperative evaluation were also taken into account. The results were excellent --32.5 per cent, good 46.8 per cent, fair 6.5 per cent, and poor 14.2 per cent.     

缺血后处理对保护皮瓣的作用机制研究

目的：缺血后处理已经在心、肾等器官上广泛应用,进行相关研究进一步探究缺血后处理对皮瓣有否保护作用。方法：健康成年新西兰大白兔,分为3组。A组为给予缺血后处理;B组为再灌注前5min给予A2A阻滞剂SCH58261＋缺血后处理。C组,直接应用微血管夹阻断腹壁浅血管持续缺血6h后,恢复正常血供。分别进行中性粒细胞浸润,MPO含量和皮瓣存活率检测。结果：新西兰大白兔完全存活。B、C组相比较,中性粒细胞计数以及MPO含量也未见统计学差别（P〉0.005）。实验组皮瓣存活面积比较,B与C相比较,无统计学意义（P〉0.005）,但是A与B、C相比较,上述指标两两之间都有统计学意义差别（P〈0.005）。结论：缺血后处理对皮瓣再灌注损伤有保护作用,该作用可能和A2A受体性质有关。     

Experience with the Matti-Russe-Zolczer method in the surgical management of pseudoarthrosis of the navicular bone of the wrist

Authors performed in the Department of Traumatology of the County Hospital Kaposvár from 1979 to 1985 22 Matti-Russe-Zolczer operations for pseudoarthrosis of the navicular bone. The necessity of the strict observance of the conditions of indication is stressed. The results of operations were assessed in a follow-up. The time elapsed between the operation and control was 2 and 6 years. Good results were achieved after the use of Matti-Russe-Zolczer operation in 22 patients with navicular pseudoarthrosis.