Recurrence of lumbar disc herniation after microendoscopic discectomy

Morio Matsumoto, Kota Watanabe, Naobumi Hosogane, Takashi Tsuji, Ken Ishii, Masaya Nakamura, Kazuhiro Chiba, Yoshiaki Toyama

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31 Citations (Scopus)

Abstract

Background Although microendoscopic discectomy (MED) is a minimally invasive surgical method for lumbar disc herniation (LDH), early postoperative recurrence may outweigh that advantage. The purpose of the present study was to retrospectively investigate the recurrence rate after MED for LDH and to determine the risk factors for recurrence in patients treated by a single surgeon. Materials and Methods The study included 344 patients who underwent MED (213 males and 131 females; mean age, 39.3 years; age range, 11-82 years; mean follow-up, 3.6 years; follow-up range, 2.0-6.5 years). The clinical outcomes were evaluated using the Japanese Orthopedic Association Score for Low Back Pain (JOA score). Recurrence factors investigated by logistic regression analysis included age; sex; level, laterality, and classified type of LDH; occupation; sports activity; and learning curve of the surgeon. Results LDH recurrence was observed in 37 patients (10.8%). It was observed at the same level in the ipsilateral side as the original LDH in 30 patients, in the contralateral side in three patients, and at a level adjacent to the original level in four patients. The mean time interval between MED and the recurrence was 16.6 months (range, 0.5-52 months). Twenty patients (54.1%) developed recurrence within 1 year after MED. Twenty-two patients (59.5%) were treated by revision surgery (MED in 20 patients and microdiscectomy in two patients), and 15 patients (40.5%) were treated conservatively. The mean JOA score of all the patients was 14.7 ± 3.5 before surgery and 26.5 ± 2.2 at the final follow-up, yielding an average recovery rate of 82.3 ± 15.7%. The recovery rate was 83.1 ± 14.8% in patients without recurrence and 75.7 ± 20.4% in patients with recurrence (p = 0.006). By logistic regression analysis, we identified migration of LDH as a significant factor related to recurrence. The patients with caudal migration of LDH had recurrence more frequently (19.0%) than those with rostral migration (12.5%) or without migration (10.2%) (p = 0.04; odds ratio, 2.0; 95% confidence interval, 1.0-3.8). Conclusion The recurrence rate and reoperation rate for LDH after MED were comparable to those of conventional discectomy. More than half of the cases of recurrence occurred at an early postoperative phase, and patients with caudally migrated LDH experienced recurrence significantly more often than those with rostrally migrated or nonmigrated LDH.

Original languageEnglish
Pages (from-to)222-227
Number of pages6
JournalJournal of Neurological Surgery, Part A: Central European Neurosurgery
Volume74
Issue number4
DOIs
Publication statusPublished - 08-07-2013

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Diskectomy
Recurrence
Reoperation
Logistic Models
Regression Analysis
Learning Curve
Low Back Pain

All Science Journal Classification (ASJC) codes

  • Surgery
  • Clinical Neurology

Cite this

Matsumoto, Morio ; Watanabe, Kota ; Hosogane, Naobumi ; Tsuji, Takashi ; Ishii, Ken ; Nakamura, Masaya ; Chiba, Kazuhiro ; Toyama, Yoshiaki. / Recurrence of lumbar disc herniation after microendoscopic discectomy. In: Journal of Neurological Surgery, Part A: Central European Neurosurgery. 2013 ; Vol. 74, No. 4. pp. 222-227.
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title = "Recurrence of lumbar disc herniation after microendoscopic discectomy",
abstract = "Background Although microendoscopic discectomy (MED) is a minimally invasive surgical method for lumbar disc herniation (LDH), early postoperative recurrence may outweigh that advantage. The purpose of the present study was to retrospectively investigate the recurrence rate after MED for LDH and to determine the risk factors for recurrence in patients treated by a single surgeon. Materials and Methods The study included 344 patients who underwent MED (213 males and 131 females; mean age, 39.3 years; age range, 11-82 years; mean follow-up, 3.6 years; follow-up range, 2.0-6.5 years). The clinical outcomes were evaluated using the Japanese Orthopedic Association Score for Low Back Pain (JOA score). Recurrence factors investigated by logistic regression analysis included age; sex; level, laterality, and classified type of LDH; occupation; sports activity; and learning curve of the surgeon. Results LDH recurrence was observed in 37 patients (10.8{\%}). It was observed at the same level in the ipsilateral side as the original LDH in 30 patients, in the contralateral side in three patients, and at a level adjacent to the original level in four patients. The mean time interval between MED and the recurrence was 16.6 months (range, 0.5-52 months). Twenty patients (54.1{\%}) developed recurrence within 1 year after MED. Twenty-two patients (59.5{\%}) were treated by revision surgery (MED in 20 patients and microdiscectomy in two patients), and 15 patients (40.5{\%}) were treated conservatively. The mean JOA score of all the patients was 14.7 ± 3.5 before surgery and 26.5 ± 2.2 at the final follow-up, yielding an average recovery rate of 82.3 ± 15.7{\%}. The recovery rate was 83.1 ± 14.8{\%} in patients without recurrence and 75.7 ± 20.4{\%} in patients with recurrence (p = 0.006). By logistic regression analysis, we identified migration of LDH as a significant factor related to recurrence. The patients with caudal migration of LDH had recurrence more frequently (19.0{\%}) than those with rostral migration (12.5{\%}) or without migration (10.2{\%}) (p = 0.04; odds ratio, 2.0; 95{\%} confidence interval, 1.0-3.8). Conclusion The recurrence rate and reoperation rate for LDH after MED were comparable to those of conventional discectomy. More than half of the cases of recurrence occurred at an early postoperative phase, and patients with caudally migrated LDH experienced recurrence significantly more often than those with rostrally migrated or nonmigrated LDH.",
author = "Morio Matsumoto and Kota Watanabe and Naobumi Hosogane and Takashi Tsuji and Ken Ishii and Masaya Nakamura and Kazuhiro Chiba and Yoshiaki Toyama",
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Matsumoto, M, Watanabe, K, Hosogane, N, Tsuji, T, Ishii, K, Nakamura, M, Chiba, K & Toyama, Y 2013, 'Recurrence of lumbar disc herniation after microendoscopic discectomy', Journal of Neurological Surgery, Part A: Central European Neurosurgery, vol. 74, no. 4, pp. 222-227. https://doi.org/10.1055/s-0032-1320031

Recurrence of lumbar disc herniation after microendoscopic discectomy. / Matsumoto, Morio; Watanabe, Kota; Hosogane, Naobumi; Tsuji, Takashi; Ishii, Ken; Nakamura, Masaya; Chiba, Kazuhiro; Toyama, Yoshiaki.

In: Journal of Neurological Surgery, Part A: Central European Neurosurgery, Vol. 74, No. 4, 08.07.2013, p. 222-227.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Recurrence of lumbar disc herniation after microendoscopic discectomy

AU - Matsumoto, Morio

AU - Watanabe, Kota

AU - Hosogane, Naobumi

AU - Tsuji, Takashi

AU - Ishii, Ken

AU - Nakamura, Masaya

AU - Chiba, Kazuhiro

AU - Toyama, Yoshiaki

PY - 2013/7/8

Y1 - 2013/7/8

N2 - Background Although microendoscopic discectomy (MED) is a minimally invasive surgical method for lumbar disc herniation (LDH), early postoperative recurrence may outweigh that advantage. The purpose of the present study was to retrospectively investigate the recurrence rate after MED for LDH and to determine the risk factors for recurrence in patients treated by a single surgeon. Materials and Methods The study included 344 patients who underwent MED (213 males and 131 females; mean age, 39.3 years; age range, 11-82 years; mean follow-up, 3.6 years; follow-up range, 2.0-6.5 years). The clinical outcomes were evaluated using the Japanese Orthopedic Association Score for Low Back Pain (JOA score). Recurrence factors investigated by logistic regression analysis included age; sex; level, laterality, and classified type of LDH; occupation; sports activity; and learning curve of the surgeon. Results LDH recurrence was observed in 37 patients (10.8%). It was observed at the same level in the ipsilateral side as the original LDH in 30 patients, in the contralateral side in three patients, and at a level adjacent to the original level in four patients. The mean time interval between MED and the recurrence was 16.6 months (range, 0.5-52 months). Twenty patients (54.1%) developed recurrence within 1 year after MED. Twenty-two patients (59.5%) were treated by revision surgery (MED in 20 patients and microdiscectomy in two patients), and 15 patients (40.5%) were treated conservatively. The mean JOA score of all the patients was 14.7 ± 3.5 before surgery and 26.5 ± 2.2 at the final follow-up, yielding an average recovery rate of 82.3 ± 15.7%. The recovery rate was 83.1 ± 14.8% in patients without recurrence and 75.7 ± 20.4% in patients with recurrence (p = 0.006). By logistic regression analysis, we identified migration of LDH as a significant factor related to recurrence. The patients with caudal migration of LDH had recurrence more frequently (19.0%) than those with rostral migration (12.5%) or without migration (10.2%) (p = 0.04; odds ratio, 2.0; 95% confidence interval, 1.0-3.8). Conclusion The recurrence rate and reoperation rate for LDH after MED were comparable to those of conventional discectomy. More than half of the cases of recurrence occurred at an early postoperative phase, and patients with caudally migrated LDH experienced recurrence significantly more often than those with rostrally migrated or nonmigrated LDH.

AB - Background Although microendoscopic discectomy (MED) is a minimally invasive surgical method for lumbar disc herniation (LDH), early postoperative recurrence may outweigh that advantage. The purpose of the present study was to retrospectively investigate the recurrence rate after MED for LDH and to determine the risk factors for recurrence in patients treated by a single surgeon. Materials and Methods The study included 344 patients who underwent MED (213 males and 131 females; mean age, 39.3 years; age range, 11-82 years; mean follow-up, 3.6 years; follow-up range, 2.0-6.5 years). The clinical outcomes were evaluated using the Japanese Orthopedic Association Score for Low Back Pain (JOA score). Recurrence factors investigated by logistic regression analysis included age; sex; level, laterality, and classified type of LDH; occupation; sports activity; and learning curve of the surgeon. Results LDH recurrence was observed in 37 patients (10.8%). It was observed at the same level in the ipsilateral side as the original LDH in 30 patients, in the contralateral side in three patients, and at a level adjacent to the original level in four patients. The mean time interval between MED and the recurrence was 16.6 months (range, 0.5-52 months). Twenty patients (54.1%) developed recurrence within 1 year after MED. Twenty-two patients (59.5%) were treated by revision surgery (MED in 20 patients and microdiscectomy in two patients), and 15 patients (40.5%) were treated conservatively. The mean JOA score of all the patients was 14.7 ± 3.5 before surgery and 26.5 ± 2.2 at the final follow-up, yielding an average recovery rate of 82.3 ± 15.7%. The recovery rate was 83.1 ± 14.8% in patients without recurrence and 75.7 ± 20.4% in patients with recurrence (p = 0.006). By logistic regression analysis, we identified migration of LDH as a significant factor related to recurrence. The patients with caudal migration of LDH had recurrence more frequently (19.0%) than those with rostral migration (12.5%) or without migration (10.2%) (p = 0.04; odds ratio, 2.0; 95% confidence interval, 1.0-3.8). Conclusion The recurrence rate and reoperation rate for LDH after MED were comparable to those of conventional discectomy. More than half of the cases of recurrence occurred at an early postoperative phase, and patients with caudally migrated LDH experienced recurrence significantly more often than those with rostrally migrated or nonmigrated LDH.

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