الفهرس 
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Abstract
This study was conducted in the Neurological Surgical Service of Minia University Hospital on thirty diagnosed symptomatic patients of black disc disease. These thirty patients had positive inclusion criteria and none of the exclusion criteria. The patients chosen for the study were treated by posterior transpedicular screws fixation. They were compared to a control group of thirty patients treated conservatively.
Of the patients, 16 were men (53.33%) and 14 were women (46.67%). Male to female ratio was 8:7 (see figure ). The age of these patients ranged from 28 years to 57 years with average age of 35 years and mean age of 33.6 years.
At the 1-month follow up visit after surgery, 16.67% (5/30) of the patients with back pain before surgery stated that their pain was absent, 76.67% (13/30) believed that the pain was improved, 33.33% (10/30) stated that the pain was the same, and 6.67% (2/30) rated the pain as worse.
As regard the control group treated conservatively, at the 1-month follow up visit, 6.67% (2/30) of the patients with back pain stated that their pain was absent, 36.67% (11/30) believed that the pain was improved, 53.33% (16/30) stated that the pain was the same, and 3.33% (1/30) rated the pain as worse.
At the 3-month follow up visit after surgery, 10% (3/30) of the patients with back pain before surgery stated that their pain was absent, 50% (15/30) believed that the pain was improved, 33.33% (10/30) stated that the pain was the same, and 6.67% (2/30) rated the pain as worse.
As regard the control group treated conservatively, at the 3-month follow up visit, 6.67% (2/30) of the patients with back pain stated that their pain was absent, 33.33% (10/30) believed that the pain was improved, 53.33% (16/30) stated that the pain was the same, and 6.67% (2/30) rated the pain as worse.
At the 6-month follow up visit after surgery, 2 patients failed to appear for the follow up visit. 7.14% (2/28) of the patients with back pain before surgery stated that their pain was absent, 42.86% (12/28) believed that the pain was improved, 42.86% (12/28) stated that the pain was the same and 7.14% (2/28) rated the pain as worse.
As regard the control group treated conservatively, at the 6-month follow up visit, 6.67% (2/30) of the patients with back pain stated that their pain was absent, 43.33% (13/30) believed that the pain was improved, 43.33% (13/30) stated that the pain was the same, and 6.67% (2/30) rated the pain as worse.
At the final evaluation, the overall results were good to excellent in 43.33% (13/30) of the patients, fair in 50% (15/30) of the patients, and poor in 6.67% (2/30) of the patients.
In the control group, the overall results were good to excellent in 40% (12/30) of the patients, fair in 53.33% (16/30) of the patients, and poor in 6.67% (2/30) of the patients.