摘要:

AbstractThis study was initiated to assess the effects of vibrating optics on a microsurgeon's ability to visualize. The results have led to criteria of image displacement versus frequency which could be applied to the design of a surgical‐microscope mounting system. To provide minimum added strain to the microsurgeon, the ideal microscope mounting system should not transmit vibration from the hospital environment to the microscope optics at a level that is detectable by the visual system of the surgeon. This can be avoided by isolating the microscope mounting system from the vibratory environment of the hospital and by designing the microscope support system to minimize vibrations at frequencies that are most readily detectable by the human visual syste

ISSN:0738-1085    

DOI:10.1002/micr.1920040402

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1983

数据来源: WILEY

摘要:

AbstractThe authors present two cases of complete median nerve paralysis due to entrapment after posterior dislocation of the elbow. Previous literature on the subject matter is reviewed, and management and therapeutic indication of these lesions are discussed.

ISSN:0738-1085    

DOI:10.1002/micr.1920040403

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1983

数据来源: WILEY

摘要:

AbstractTreating spastic palsies is a difficult problem. Hyponeurotization is a technique in which peripheral nerves are partially and selectively denervated to diminish spasm in muscles, hence reducing spasticity and tenseness so inimical to movement. Hyponeurotization can be performed in all spastic patients who are capable of cooperating. It should be avoided in cases of athetosis and brain impairment. Partial denervation is employed to reduce spasm; tenotomies, tendon lengthening, and myoectomy are employed to increase length in retracted muscles. Secondary surgery is usually required to further correct the spasm after the “adoption” phenomenon is complete. The results with hyponeurotization have been good in a high percentage of cases in which the surgery strictly adhered to basic princip

ISSN:0738-1085    

DOI:10.1002/micr.1920040404

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1983

数据来源: WILEY

摘要:

AbstractA new technique of preserving ureteral blood supply in heterotopic rat renal transplantation is described. This entails leaving an intact gonadal artery in continuity with the donor aortic stump, which is anastomosed to the recipient aorta. Comparison of this technique with conventional methods wherein the spermatic artery is ligated revealed a marked decrease in the incidence of ureteral complications with the former. Preservation of adequate blood supply to the ureter in experimental rat renal transplantation provides more consistent results and lessens the risk of unnecessary animal loss.

ISSN:0738-1085    

DOI:10.1002/micr.1920040405

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1983

数据来源: WILEY

摘要:

AbstractThe restoration of the continuity of the urinary tract represents one of the major problems in rat renal transplantation. End‐to‐end ureterostomy is the most physiologically effective technique; however, it involves noteworthy technical difficulties because of the extremely thin caliber of the ureter in the rat and the high incidence of postoperative hydronephrosis. We describe a new technique for end‐to‐end ureterostomy in the rat, where the use of an absorbable ureteral stent is recommended. A 5‐0 plain catgut thread is used as a stent. The anastomosis is performed under an operating microscope at × 25–40 magnification with interrupted sutures of 11‐0 Vicryl. The use of the indwelling stent facilitates the performance of the anastomosis and yields optimal results. The macroscopical, radiological, and histological controls in a group of rats operated on with this technique showed a very high percentage of success with no complications, a result undoubtedly superior to that obtained with conven

ISSN:0738-1085    

DOI:10.1002/micr.1920040406

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1983

数据来源: WILEY

摘要:

AbstractHeart and spleen twin grafts from LEW to ACI rats may survive permanently, whereas those grafted from ACI to LEW rats do not. This strain difference in graft acceptance was analyzed quantitatively by transplanting one to three ACI spleens into LEW rats in order to compensate for the relatively small size of ACI spleens (Fig. 1). Under these conditions permanent graft survival was not observed in LEW recipients. However, during host splenectomy 3 days after transplantation, a nonimmunological factor was observed. The transplanted ACI spleens showed congestion and infarctions, while in the LEW to ACI transplant model the LEW spleens did not. This observation could be explained by the size of the vascular pedicle in ACI spleens. Although no problem was encountered immediately after completing the anastomoses, allogeneic spleens react by increasing in size, to such an extent that their size exceeds the capacity of the smaller vascular pedicle in ACI rats and results in congestion. Hence, the concept is formulated that early compromise of hemodynamics on a nonimmunological base may determine the fate of ACI spleen graft before immunological factors have a chance to become effective.

ISSN:0738-1085    

DOI:10.1002/micr.1920040407

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1983

数据来源: WILEY

摘要:

AbstractA simple, inexpensive method for producing an experimental model for lymphedema in rabbit ear is described. In 47 of 50 rabbit ears, the lymphedema could be demonstrated by measurement of ear thickness, water displacement, skin thickness, diameter of lymphatics, and histopathology of the experimental ear. Three rabbit ears failed because of technical reasons. In studying the findings of experimental lymphedema, some clinical phenomena are explained and modifications of the operative procedure of microlymphaticovenous anastomosis for treating lymphedema are suggested.

ISSN:0738-1085    

DOI:10.1002/micr.1920040408

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1983

数据来源: WILEY

摘要:

AbstractA simplified technique to make an end‐to‐side or a side‐to‐side portacaval shunt in rats is described. The method requires no expensive special microsurgical instruments, and when the technique is completely mastered, one can make a portacaval shunt within 10 minutes. This is very useful when making many experimental models in rats. Moreover, this technique is fundamental for doctors who are intending to train in micro

ISSN:0738-1085    

DOI:10.1002/micr.1920040409

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1983

数据来源: WILEY

摘要:

AbstractThe fate of arterial interposition grafts in growing rats was investigated. The interrupted‐ and continuous‐suture techniques were compared to see which allowed for better expansion of the anastomosis. We found that a graft enlarges in proportion to the growth of the parent vessel, that in end‐to‐end anastomosis the interrupted suture technique allowed for better expansion of the anastomosis (but not in the end‐to‐side model), and that the continous suture technique was associated with a higher rate of false aneurys

ISSN:0738-1085    

DOI:10.1002/micr.1920040410

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1983

数据来源: WILEY

ISSN:0738-1085    

DOI:10.1002/micr.1920040411

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1983

数据来源: WILEY