Surgical management of Guyon's canal syndrome, an ulnar nerve entrapment at the wrist: report of two cases.

Guyon's canal syndrome, an ulnar nerve entrapment at the wrist, is a well-recognized entity. The most common causes that involve the ulnar nerve at the wrist are compression from a ganglion, occupational traumatic neuritis, a musculotendinous arch and disease of the ulnar artery. We describe two cases of Guyon's canal syndrome and discuss the anatomy, aetiology, clinical features, anatomical classification, diagnostic criteria and treatment. It is emphasized that the knowledge of both the surgical technique and anatomy is very important for a satisfactory surgical result.

Tratamiento quirúrgico de neuritis hansenianas / Surgical treatment of hansenian neuritis

Los autores analizan los problemas del tratamiento quirúrgico de las neuritis hansenianas. Se establecen los criterios que deben ser utilizados. Ubican la cirugía en el contexto terapéutico. Presentan ejemplos de su casuística. Se sugiere uniformar los criterios a fin de tornar comparativos los resultados

Tratamiento quirúrgico de neuritis hansenianas / Surgical treatment of hansenian neuritis

Los autores analizan los problemas del tratamiento quirúrgico de las neuritis hansenianas. Se establecen los criterios que deben ser utilizados. Ubican la cirugía en el contexto terapéutico. Presentan ejemplos de su casuística. Se sugiere uniformar los criterios a fin de tornar comparativos los resultados

Basilar aneurysm surgery: the subtemporal approach with section of the zygomatic arch.

The authors propose a modification of the classic subtemporal approach for basilar aneurysm. This modification allows excellent access to the floor of the temporal fossa, the tentorial edge, and the interpeduncular fossa with less brain retraction than is required with the original technique. The procedure is described, our experience with it is presented, and suggestions are made for its use.

[Topodiagnosis in peripheral facial paralysis]. / Topodiagnóstico na paralisia facial periférica.

The topodiagnosis allows the physician to determine the topographic localization of pathology involving the facial nerve. It is based on clinical tests that evaluate the function of each one of the rami of the facial nerve. With a statistic of 873 patients, the Facial Nerve Group of Hospital das Clínicas, São Paulo University, found that suprageniculate lesions are responsible for 50% of the facial nerve involvement of several etiologies. Based on these results, the physician is able to develop a rationale for therapy and surgical access for facial nerve lesions.

Topodiagnóstico na paralisia facial periférica / Topadiagnosis in peripheral facial paralysis

A importância do topodiagnóstico na paralísia facial pereférica é a localizaçäo anatômica precisa da lesäo neural. Consiste ele da realizaçäo de testes clínicos para avaliar as funçöes de cada um dos ramos do nervo. O Grupo de Paralísia Facial do Hospital das Clínicas da Faculdade de Medicina da Universidade de Säo Paulo, com estastística de 873 pacientes, demonstra que praticamente 50% dos casos, das mais diversas etiologias, apresentam lesäo suprageniculada. A importâncias desse dado é a indicaçäo da via de acesso, quando necessária a exploraçäo cirúrgica do nervo facial

Tratamento cirurgico de compressao de nervo optico por traumatismo craniencefalico / Surgical treatment of optic nerve compression by craniocerebral trauma: a case report

A abordagem operatoria das lesoes traumaticas do nervo optico e raramente descrita E relatado caso de doente submetido a descompressao cirurgica do canal optico para tratamento da compressao mecanica do nervo optico provocada por fragmento osseo.Com o tratamento houve melhora imediata da visa

The collagen of permanently damaged nerves in human leprosy.

The collagen of nerve biopsies from ten leprosy patients was studied by the Picrosirius-polarization method and electron microscopy. It was observed that leprosy promotes a marked increase in nerve collagen content. Despite the changes induced by this disease, the localization of collagen types I and III in the endo-, peri-, and epineurium remains the same as in normal nerves.

[Microsurgical cerebral revascularization]. / Revascularização cerebral microcirurgica

Techniques of microsurgical revascularization are reviewed. A series of 5 cases, submitted to 6 anastomosis of the superficial temporal artery is presented.