BACKGROUND Although percutaneous endoscopic lumbar discectomy (PELD) has shown favorable outcomes in the majority of lumbar discectomy cases, there were also some failures. The most common cause of failure is the incomplete removal of disc fragments. The skin entry point for the guide-needle trajectory and the optimal placement of the working sleeve are largely blind, which might lead to the in...

Spontaneous regression of herniated lumbar discs was reported occasionally. The mechanisms proposed for regression of disc herniation are still incomplete. This paper describes and discusses a case of spontaneous regression of herniated lumbar discs with a new disc protrusion in the adjacent level. A 41-year-old man was admitted with radiating pain and numbness in the left lower extremity with ...

Non-discogenic sciatica can be caused by any lesion along the course of the lumbosacral nerve roots and sciatic nerve. We aim to present a rare case of refractory sciatica in an otherwise healthy 25-year-old man. He complained of left leg pain without significant back pain. Extensor hallucis longus muscle was weak on the left side with limited straight leg rising. On magnetic resonance imaging,...

A study was made of the clinical and radiological characteristics and the results of microsurgical discectomy without interbody fusion, of 26 young adults, who presented with cervical myelopathy due to nuclear herniations. Neck trauma was not a significant aetiological factor. The disease produced moderate to very severe functional disability in most patients (73%), in a relatively short period...

OBJECTIVE The purpose of this study was to compare clinical and radiological outcomes of percutaneous endoscopic lumbar discectomy (PELD) and open lumbar microdiscectomy (OLM) for recurrent disc herniation. METHODS Fifty-four patients, who underwent surgery, either PELD (25 patients) or repeated OLM (29 patients), due to recurrent disc herniation at L4-5 level, were divided into two groups ac...

STUDY DESIGN This is a retrospective study. PURPOSE We wanted to examine the clinical and radiological prognostic factors affecting the postoperative clinical outcome of patients with lumbar disc herniation and who underwent open discectomy. OVERVIEW OF LITERATURE Conventional open discectomy has been widely used as a treatment regimen for the management of lumbar disc herniation. Still, mu...

BACKGROUND The observed rate of recurrent disc herniation after limited posterior lumbar discectomy is highest in patients with posterior wide annular defects, according to the Carragee classification of type II (fragment-defect) disc hernia. Although the recurrent herniation rate is lower in both type III (fragment-contained) and type IV (no fragment-contained) patients, recurrent persistent s...

In order to observe histological changes in the extruded and sequestrated intervertebral disc, we conducted pathological and immunological examinations of herniated disc materials taken at the time of discectomy. There were 49 disc materials (from 38 men and 10 women [aged 19 to 78 years; average, 36.6 years]). The herniation was classified into four types, based on the intraoperative observati...

BACKGROUND Patients with cervical disc disease may present with radiculopathy (root compression), myelopathy (cord compression), or myeloradiculopathy. These complaints must be correlated with x-ray, magnetic resonance (MR) imaging, and computed tomographic (CT) scans. Although most patients can be managed nonsurgically, those with significant neurological deficits and larger disc herniations m...