A multilevel posterior tension band-sparing laminectomy for intraspinal lesions: patient series.

Background: Minimally invasive spine surgery (MISS) represents a major development in spinal tumor surgery. However, considering that many intradural lesions compromise multiple spinal segments, MISS has certain limitations. Thus, some intraspinal lesions still require traditional approaches.

Flash visual-evoked potentials and flash electroretinography in the preoperative visual prognosis of eyes with cataracts.

This study evaluated the reliability of flash visual-evoked potentials and flash electroretinography in the prognosis of postoperative visual acuity after cataract extraction. We tested 94 patients with cataract in whom the preoperative visual acuity ranged from light perception to 3/10. On the basis of the electrophysiologic tests, we formulated three types of preoperative visual prognosis: high, intermediate, and poor.