Impact of lumbar hypolordosis on the incidence of symptomatic postoperative spinal epidural hematoma after decompression surgery for lumbar spinal canal stenosis

Nobuyuki Fujita, Takehiro Michikawa, Mitsuru Yagi, Satoshi Suzuki, Osahiko Tsuji, Narihito Nagoshi, Eijiro Okada, Takashi Tsuji, Masaya Nakamura, Morio Matsumoto, Kota Watanabe

Research output: Contribution to journalArticle

Abstract

Purpose: Potential associations between radiographic parameters and the incidence of symptomatic postoperative spinal epidural hematoma (PSEH) have not been identified. This study aimed to identify risk factors including radiographic parameters for symptomatic PSEH after posterior decompression surgery for lumbar spinal canal stenosis (LSS). Methods: We retrospectively reviewed 1007 consecutive patients who underwent lumbar decompression surgery for lumbar spinal canal stenosis (LSS) at our institution. We identified 35 cases of symptomatic PSEH, defined by clinical symptoms and MRI findings, and selected 3 or 4 age- and sex-matched control subjects for each PSEH subject (124 controls). We compared radiographic parameters and previously reported risk factors between PSEH and control subjects. Results: Compared to the control group, PSEH patients had significantly higher preoperative systolic (p =.020) and diastolic (p =.048) blood pressure, and more levels of decompression (p =.001). PSEH and control subjects had significant differences in lumbar lordosis (PSEH 24.8° ± 14.6°, control 34.8° ± 14.5°), pelvic tilt (25.1° ± 11.7° vs. 20.8° ± 8.4°), sacral slope (23.4° ± 9.4° vs. 27.6° ± 8.3°), and pelvic incidence minus lumbar lordosis (23.7° ± 15.0° vs. 13.7° ± 14.6°). Multivariate analysis revealed two significant risk factors for PSEH: decompression of two or more levels and lumbar lordosis < 25°. Conclusions: Multilevel decompression and hypolordosis are significant risk factors for symptomatic PSEH after decompression surgery for LSS. LSS patients with lumbar hypolordosis or multilevel stenosis should be carefully observed for PSEH after decompression surgery. Graphical abstract: These slides can be retrieved under Electronic Supplementary Material.[Figure not available: see fulltext.].

Original languageEnglish
Pages (from-to)87-93
Number of pages7
JournalEuropean Spine Journal
Volume28
Issue number1
DOIs
Publication statusPublished - 25-01-2019

Fingerprint

Spinal Epidural Hematoma
Spinal Stenosis
Spinal Canal
Decompression
Incidence
Lordosis

All Science Journal Classification (ASJC) codes

  • Surgery
  • Orthopedics and Sports Medicine

Cite this

Fujita, Nobuyuki ; Michikawa, Takehiro ; Yagi, Mitsuru ; Suzuki, Satoshi ; Tsuji, Osahiko ; Nagoshi, Narihito ; Okada, Eijiro ; Tsuji, Takashi ; Nakamura, Masaya ; Matsumoto, Morio ; Watanabe, Kota. / Impact of lumbar hypolordosis on the incidence of symptomatic postoperative spinal epidural hematoma after decompression surgery for lumbar spinal canal stenosis. In: European Spine Journal. 2019 ; Vol. 28, No. 1. pp. 87-93.
@article{34a6e567d35d4b52ada619a9b5148a8b,
title = "Impact of lumbar hypolordosis on the incidence of symptomatic postoperative spinal epidural hematoma after decompression surgery for lumbar spinal canal stenosis",
abstract = "Purpose: Potential associations between radiographic parameters and the incidence of symptomatic postoperative spinal epidural hematoma (PSEH) have not been identified. This study aimed to identify risk factors including radiographic parameters for symptomatic PSEH after posterior decompression surgery for lumbar spinal canal stenosis (LSS). Methods: We retrospectively reviewed 1007 consecutive patients who underwent lumbar decompression surgery for lumbar spinal canal stenosis (LSS) at our institution. We identified 35 cases of symptomatic PSEH, defined by clinical symptoms and MRI findings, and selected 3 or 4 age- and sex-matched control subjects for each PSEH subject (124 controls). We compared radiographic parameters and previously reported risk factors between PSEH and control subjects. Results: Compared to the control group, PSEH patients had significantly higher preoperative systolic (p =.020) and diastolic (p =.048) blood pressure, and more levels of decompression (p =.001). PSEH and control subjects had significant differences in lumbar lordosis (PSEH 24.8° ± 14.6°, control 34.8° ± 14.5°), pelvic tilt (25.1° ± 11.7° vs. 20.8° ± 8.4°), sacral slope (23.4° ± 9.4° vs. 27.6° ± 8.3°), and pelvic incidence minus lumbar lordosis (23.7° ± 15.0° vs. 13.7° ± 14.6°). Multivariate analysis revealed two significant risk factors for PSEH: decompression of two or more levels and lumbar lordosis < 25°. Conclusions: Multilevel decompression and hypolordosis are significant risk factors for symptomatic PSEH after decompression surgery for LSS. LSS patients with lumbar hypolordosis or multilevel stenosis should be carefully observed for PSEH after decompression surgery. Graphical abstract: These slides can be retrieved under Electronic Supplementary Material.[Figure not available: see fulltext.].",
author = "Nobuyuki Fujita and Takehiro Michikawa and Mitsuru Yagi and Satoshi Suzuki and Osahiko Tsuji and Narihito Nagoshi and Eijiro Okada and Takashi Tsuji and Masaya Nakamura and Morio Matsumoto and Kota Watanabe",
year = "2019",
month = "1",
day = "25",
doi = "10.1007/s00586-018-5782-y",
language = "English",
volume = "28",
pages = "87--93",
journal = "European Spine Journal",
issn = "0940-6719",
publisher = "Springer Verlag",
number = "1",

}

Fujita, N, Michikawa, T, Yagi, M, Suzuki, S, Tsuji, O, Nagoshi, N, Okada, E, Tsuji, T, Nakamura, M, Matsumoto, M & Watanabe, K 2019, 'Impact of lumbar hypolordosis on the incidence of symptomatic postoperative spinal epidural hematoma after decompression surgery for lumbar spinal canal stenosis', European Spine Journal, vol. 28, no. 1, pp. 87-93. https://doi.org/10.1007/s00586-018-5782-y

Impact of lumbar hypolordosis on the incidence of symptomatic postoperative spinal epidural hematoma after decompression surgery for lumbar spinal canal stenosis. / Fujita, Nobuyuki; Michikawa, Takehiro; Yagi, Mitsuru; Suzuki, Satoshi; Tsuji, Osahiko; Nagoshi, Narihito; Okada, Eijiro; Tsuji, Takashi; Nakamura, Masaya; Matsumoto, Morio; Watanabe, Kota.

In: European Spine Journal, Vol. 28, No. 1, 25.01.2019, p. 87-93.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Impact of lumbar hypolordosis on the incidence of symptomatic postoperative spinal epidural hematoma after decompression surgery for lumbar spinal canal stenosis

AU - Fujita, Nobuyuki

AU - Michikawa, Takehiro

AU - Yagi, Mitsuru

AU - Suzuki, Satoshi

AU - Tsuji, Osahiko

AU - Nagoshi, Narihito

AU - Okada, Eijiro

AU - Tsuji, Takashi

AU - Nakamura, Masaya

AU - Matsumoto, Morio

AU - Watanabe, Kota

PY - 2019/1/25

Y1 - 2019/1/25

N2 - Purpose: Potential associations between radiographic parameters and the incidence of symptomatic postoperative spinal epidural hematoma (PSEH) have not been identified. This study aimed to identify risk factors including radiographic parameters for symptomatic PSEH after posterior decompression surgery for lumbar spinal canal stenosis (LSS). Methods: We retrospectively reviewed 1007 consecutive patients who underwent lumbar decompression surgery for lumbar spinal canal stenosis (LSS) at our institution. We identified 35 cases of symptomatic PSEH, defined by clinical symptoms and MRI findings, and selected 3 or 4 age- and sex-matched control subjects for each PSEH subject (124 controls). We compared radiographic parameters and previously reported risk factors between PSEH and control subjects. Results: Compared to the control group, PSEH patients had significantly higher preoperative systolic (p =.020) and diastolic (p =.048) blood pressure, and more levels of decompression (p =.001). PSEH and control subjects had significant differences in lumbar lordosis (PSEH 24.8° ± 14.6°, control 34.8° ± 14.5°), pelvic tilt (25.1° ± 11.7° vs. 20.8° ± 8.4°), sacral slope (23.4° ± 9.4° vs. 27.6° ± 8.3°), and pelvic incidence minus lumbar lordosis (23.7° ± 15.0° vs. 13.7° ± 14.6°). Multivariate analysis revealed two significant risk factors for PSEH: decompression of two or more levels and lumbar lordosis < 25°. Conclusions: Multilevel decompression and hypolordosis are significant risk factors for symptomatic PSEH after decompression surgery for LSS. LSS patients with lumbar hypolordosis or multilevel stenosis should be carefully observed for PSEH after decompression surgery. Graphical abstract: These slides can be retrieved under Electronic Supplementary Material.[Figure not available: see fulltext.].

AB - Purpose: Potential associations between radiographic parameters and the incidence of symptomatic postoperative spinal epidural hematoma (PSEH) have not been identified. This study aimed to identify risk factors including radiographic parameters for symptomatic PSEH after posterior decompression surgery for lumbar spinal canal stenosis (LSS). Methods: We retrospectively reviewed 1007 consecutive patients who underwent lumbar decompression surgery for lumbar spinal canal stenosis (LSS) at our institution. We identified 35 cases of symptomatic PSEH, defined by clinical symptoms and MRI findings, and selected 3 or 4 age- and sex-matched control subjects for each PSEH subject (124 controls). We compared radiographic parameters and previously reported risk factors between PSEH and control subjects. Results: Compared to the control group, PSEH patients had significantly higher preoperative systolic (p =.020) and diastolic (p =.048) blood pressure, and more levels of decompression (p =.001). PSEH and control subjects had significant differences in lumbar lordosis (PSEH 24.8° ± 14.6°, control 34.8° ± 14.5°), pelvic tilt (25.1° ± 11.7° vs. 20.8° ± 8.4°), sacral slope (23.4° ± 9.4° vs. 27.6° ± 8.3°), and pelvic incidence minus lumbar lordosis (23.7° ± 15.0° vs. 13.7° ± 14.6°). Multivariate analysis revealed two significant risk factors for PSEH: decompression of two or more levels and lumbar lordosis < 25°. Conclusions: Multilevel decompression and hypolordosis are significant risk factors for symptomatic PSEH after decompression surgery for LSS. LSS patients with lumbar hypolordosis or multilevel stenosis should be carefully observed for PSEH after decompression surgery. Graphical abstract: These slides can be retrieved under Electronic Supplementary Material.[Figure not available: see fulltext.].

UR - http://www.scopus.com/inward/record.url?scp=85055027139&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85055027139&partnerID=8YFLogxK

U2 - 10.1007/s00586-018-5782-y

DO - 10.1007/s00586-018-5782-y

M3 - Article

C2 - 30302540

AN - SCOPUS:85055027139

VL - 28

SP - 87

EP - 93

JO - European Spine Journal

JF - European Spine Journal

SN - 0940-6719

IS - 1

ER -