| 論文種別 | 原著(症例報告除く) |
| 言語種別 | 英語 |
| 査読の有無 | その他(不明) |
| 表題 | Disc Level-Specific outcomes of intradiscal condoliase injection for lumbar disc herniation: A multicenter retrospective study. |
| 掲載誌名 | 正式名：Journal of orthopaedic science : official journal of the Japanese Orthopaedic Association 略 称：J Orthop Sci ISSNコード：14362023/09492658 |
| 掲載区分 | 国外 |
| 巻・号・頁 | pp.Online ahead of print |
| 著者・共著者 | Kota Watanabe, Yohei Takahashi, Takehiro Michikawa, Takuya Takahashi, Tomohiro Banno, Kyohei Sakaki, Yoshiyasu Arai, Yuichi Takano, Yawara Eguchi, Yuki Taniguchi, Satoshi Maki, Yasuchika Aoki, Shunichi Fujii, Kentaro Sakaeda, Yu Matsukura, Tsutomu Akazawa, Akihito Minamide, Hidetoshi Nojiri, Kenichiro Sakai, Satoshi Kato, Koji Tamai, Hidekazu Suzuki, Masayuki Miyagi, Toshitaka Yoshii, Hiroshi Yamada, Takashi Kaito, Yutaka Hiraizumi, Masatsune Yamagata, Masaya Nakamura, Naobumi Hosogane, Seiji Ohtori, Takashi Hirai |
| 発行年月 | 2025/12 |
| 概要 | BACKGROUND:The efficacy of intradiscal condoliase injection for lumbar disc herniation (LDH) may vary depending on the affected disc level. This is especially relevant in upper lumbar herniations, where anatomical constraints can complicate surgical treatment. Although condoliase has emerged as a less invasive option, disc-level-specific outcomes remain underexplored.METHODS:This multicenter retrospective cohort study included 262 patients with LDH who underwent either intradiscal condoliase injection (CD group, n = 207) or microendoscopic discectomy (MED group, n = 55). Patients were categorized by herniation level: upper lumbar (L1/2, L2/3, L3/4) and lower lumbar (L4/5, L5/S1). The primary objective was to examine whether the effectiveness of condoliase differs by disc level. MED outcomes were included for reference. Primary outcomes included improvement in numerical rating scale (NRS) scores for leg and back pain at 1 year, responder rate (≥50 % improvement in leg pain), and reoperation rate. Intermediate-term (3-6 month) NRS data were also analyzed in a subset.RESULTS:Condoliase demonstrated consistent efficacy across disc levels, with particularly favorable outcomes at upper lumbar levels. At L1/2-L3/4, the CD group achieved a 100 % responder rate and the greatest mean improvement in leg pain (6.9 ± 2.4). At L3/4, outcomes in the CD group were superior to those in the MED group (100 % vs. 57.1 % responder rate). At L4/5, while condoliase was effective, reference data from the MED group showed greater leg pain relief (7.2 ± 2.5 vs. 5.0 ± 2.8) and a higher responder rate (100 % vs. 81.2 %). At L5/S1, both treatments produced similar results. Improvements in low back pain were modest and comparable across levels and groups. In the subset analysis, MED showed faster early symptom relief at L4/5, but condoliase provided steady improvement over time.CONCLUSION:The effectiveness of condoliase injection therapy differs by disc level and appears particularly favorable at upper lumbar levels. Condoliase represents a safe, minimally invasive alternative for treating upper lumbar LDH. These findings support disc-level-based treatment selection when choosing between condoliase and surgical intervention. |
| DOI | 10.1016/j.jos.2025.11.007 |
| PMID | 41421858 |