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KMID : 1189320160100030509
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Asian Spine Journal
2016 Volume.10 No. 3 p.509 ~ p.515
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Do Physical Symptoms Predict the Outcome of Surgical Fusion in Patients with Discogenic Low Back Pain?
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Ohtori Seiji
Orita Sumihisa
Yamauchi Kazuyo
Eguchi Yawara
Aoki Yasuchika
Nakamura Junichi
Miyagi Masayuki
Suzuki Miyako
Kubota Gou
Inage Kazuhide
Sainoh Takeshi
Sato Jun
Shiga Yasuhiro
Abe Koki
Fujimoto Kazuki
Kanamoto Hiroto
Inoue Gen
Takahashi Kazuhisa
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Abstract
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Study Design: Retrospective case series.
Purpose: To determine whether symptoms predict surgical outcomes for patients with discogenic low back pain (DLBP).
Overview of Literature: Specific diagnosis of DLBP remains difficult. Worsening of pain on flexion is a reported symptom of DLBP. This study sought to determine whether symptoms predict surgical outcomes for patients with DLBP.
Methods: We investigated 127 patients with low back pain (LBP) and no dominant radicular pain. Magnetic resonance imaging was used to select patients with disc degeneration at only one level. If pain was provoked during discography, we performed fusion surgery (87 patients). Visual analogue scale score and responses to a questionnaire regarding symptoms including worsening of pain on flexion or extension were assessed. Symptom sites before surgery were categorized into LBP alone, or LBP plus referred inguinal or leg pain. We followed 77 patients (average 3.0 years) and compared symptoms before surgery with surgical outcome.
Results: Sixty-three patients with a good outcome showed postsurgical pain relief (≥60% pain relief) and 14 patients with a poor outcome did not (<60% pain relief). In patients with good outcomes, worsening of LBP was evident in 65% of cases on flexion and in 35% on extension. However, these findings were not significantly different from those in patients with poor outcomes. The percentage of patients with LBP alone was significantly lower and the percentage of patients with LBP plus referred inguinal or leg pain was significantly higher in the group with good surgical outcome compared with patients in the group with poor surgical outcome (p<0.05).
Conclusions: Worsening of pain on extension may be a symptom of DLBP. Surgical outcomes were superior in patients with both LBP and either referred inguinal or leg pain compared with those having LBP alone.
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KEYWORD
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Lumbar, Intervertebral disc, Surgery, Pain
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