This is the first study to seek the difference between the endoscopic and microscopic transsphenoidal approaches on the olfactory system during pituitary surgery. The obtained results indicate that an endoscopic approach seems to be more advantageous than a microscopic approach for protecting olfactory system and function.

Spinal and trigeminal NC DREZ operations are effective in the treatment of intractable pain syndromes, especially in traumatic brachial plexus avulsions, segmental pain after spinal cord injury, postherpetic neuralgia, topographically limited cancer pain, and atypical facial pain.

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Anterior cervical discectomy with or without fusion has been commonly used for cervical disc disease since the description by Smith and Robinson in 1958. In this report, surgical technique, advantages, and disadvantages of the posterior approach, known as the posterior keyhole laminotomy-foraminotomy, are reviewed and motion versus fusion surgery discussed. Between 1996 and 2004, the keyhole laminotomy-foraminotomy was performed on 84 patients suffering from lateral cervical soft disc herniation or osteophytes. All the procedures were performed under the surgical microscope. A high-speed drill was used for drilling the bone. In 49 patients (58%), soft disc herniation was removed, while in 35 patients (42%) there were osteophytes. Successful relief of radiculopathy symptoms was achieved in 80 patients (96%). In 4 patients the symptoms recurred. One patient (1.2%) developed kyphosis. The only complication observed intraoperatively was a partial root injury in one patient (1.2%). Mean hospitalization time was 48 hours. The posterior approach is particularly appropriate in patients whose root compression is located posterolaterally. Advantages of this surgery are minimal lamina resection, good visualization of the nerve root, postoperative early mobilization and minimal hospitalization. Microsurgery enables us to both preserve the motion of operated segment and avoid cervical instability.

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