PMID- 34027925 OWN - NLM STAT- MEDLINE DCOM- 20211126 LR - 20230320 IS - 1528-1159 (Electronic) IS - 0362-2436 (Linking) VI - 46 IP - 24 DP - 2021 Dec 15 TI - Machine Learning Approach in Predicting Clinically Significant Improvements After Surgery in Patients with Cervical Ossification of the Posterior Longitudinal Ligament. PG - 1683-1689 LID - 10.1097/BRS.0000000000004125 [doi] AB - STUDY DESIGN: A retrospective analysis of prospectively collected data. OBJECTIVE: This study aimed to create a prognostic model for surgical outcomes in patients with cervical ossification of the posterior longitudinal ligament (OPLL) using machine learning (ML). SUMMARY OF BACKGROUND DATA: Determining surgical outcomes helps surgeons provide prognostic information to patients and manage their expectations. ML is a mathematical model that finds patterns from a large sample of data and makes predictions outperforming traditional statistical methods. METHODS: Of 478 patients, 397 and 370 patients had complete follow-up information at 1 and 2 years, respectively, and were included in the analysis. A minimal clinically important difference (MCID) was defined as an acquired Japanese Orthopedic Association (JOA) score of >/=2.5 points, after which a ML model that predicts whether MCID can be achieved 1 and 2 years after surgery was created. Patient background, clinical symptoms, and imaging findings were used as variables for analysis. The ML model was created using LightGBM, XGBoost, random forest, and logistic regression, after which the accuracy and area under the receiver-operating characteristic curve (AUC) were calculated. RESULTS: The mean JOA score was 10.3 preoperatively, 13.4 at 1 year after surgery, and 13.5 at 2 years after surgery. XGBoost showed the highest AUC (0.72) and high accuracy (67.8) for predicting MCID at 1 year, whereas random forest had the highest AUC (0.75) and accuracy (69.6) for predicting MCID at 2 years. Among the included features, total preoperative JOA score, duration of symptoms, body weight, sensory function of the lower extremity sub-score of the JOA, and age were identified as having the most significance in most of ML models. CONCLUSION: Constructing a prognostic ML model for surgical outcomes in patients with OPLL is feasible, suggesting the potential application of ML for predictive models of spinal surgery.Level of Evidence: 4. CI - Copyright (c) 2021 Wolters Kluwer Health, Inc. All rights reserved. FAU - Maki, Satoshi AU - Maki S AD - Department of Orthopedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Chiba, Japan. AD - Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Japan. FAU - Furuya, Takeo AU - Furuya T AD - Department of Orthopedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Chiba, Japan. AD - Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Japan. FAU - Yoshii, Toshitaka AU - Yoshii T AD - Department of Orthopedic Surgery, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo, Japan. AD - Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Japan. FAU - Egawa, Satoru AU - Egawa S AD - Department of Orthopedic Surgery, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo, Japan. AD - Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Japan. FAU - Sakai, Kenichiro AU - Sakai K AD - Department of Orthopedic Surgery, Saiseikai Kawaguchi General Hospital, Kawaguchi, Saitama, Japan. AD - Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Japan. FAU - Kusano, Kazuo AU - Kusano K AD - Department of Orthopedic Surgery, Kudanzaka Hospital, Chiyoda-ku, Tokyo, Japan. AD - Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Japan. FAU - Nakagawa, Yukihiro AU - Nakagawa Y AD - Department of Orthopedic Surgery, Wakayama Medical University Kihoku Hospital, Itogun, Wakayama, Japan. AD - Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Japan. FAU - Hirai, Takashi AU - Hirai T AD - Department of Orthopedic Surgery, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo, Japan. AD - Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Japan. FAU - Wada, Kanichiro AU - Wada K AD - Department of Orthopedic Surgery, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori, Japan. AD - Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Japan. FAU - Katsumi, Keiichi AU - Katsumi K AD - Department of Orthopedic Surgery, Niigata University Medical and Dental General Hospital, Niigata, Niigata, Japan. AD - Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Japan. FAU - Fujii, Kengo AU - Fujii K AD - Department of Orthopedic Surgery, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan. AD - Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Japan. FAU - Kimura, Atsushi AU - Kimura A AD - Department of Orthopedics, Jichi Medical University, Shimotsuke, Tochigi, Japan. AD - Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Japan. FAU - Nagoshi, Narihito AU - Nagoshi N AD - Department of Orthopedic Surgery, School of Medicine, Keio University, Shinjuku-ku, Tokyo japan. AD - Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Japan. FAU - Kanchiku, Tsukasa AU - Kanchiku T AD - Department of Orthopedic Surgery, Yamaguchi University School of Medicine, Ube, Yamaguchi, Japan. AD - Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Japan. FAU - Nagamoto, Yukitaka AU - Nagamoto Y AD - Department of Orthopedic Surgery, Osaka Rosai Hospital, Sakai, Osaka, Japan. AD - Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Japan. FAU - Oshima, Yasushi AU - Oshima Y AD - Department of Orthopedic Surgery, The University of Tokyo Hospital, Bunkyo-ku, Tokyo, Japan. AD - Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Japan. FAU - Ando, Kei AU - Ando K AD - Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan. AD - Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Japan. FAU - Takahata, Masahiko AU - Takahata M AD - Orthopedic Surgery, Reconstructive Surgery and Rehabilitation Medicine, Division of Advanced Medical Science, Hokkaido University, Graduate School of Medicine, Sapporo, Japan. AD - Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Japan. FAU - Mori, Kanji AU - Mori K AD - Department of Orthopedic Surgery, Shiga University of Medical Science, Otsu, Shiga, Japan. AD - Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Japan. FAU - Nakajima, Hideaki AU - Nakajima H AD - Department of Orthopedics and Rehabilitation Medicine, University of Fukui Faculty of Medical Sciences, Matsuoka, Fukui, Japan. AD - Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Japan. FAU - Murata, Kazuma AU - Murata K AD - Department of Orthopedic Surgery, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan. AD - Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Japan. FAU - Matsunaga, Shunji AU - Matsunaga S AD - Department Department of Orthopedic Surgery, Imakiire General Hospital, Kagoshima, Kagoshima, Japan. AD - Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Japan. FAU - Kaito, Takashi AU - Kaito T AD - Department of Orthopedic Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan. AD - Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Japan. FAU - Yamada, Kei AU - Yamada K AD - Department of Orthopedic Surgery, Kurume University School of Medicine, Kurume, Fukuoka, Japan. AD - Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Japan. FAU - Kobayashi, Sho AU - Kobayashi S AD - Department of Orthopedic Surgery, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan. AD - Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Japan. FAU - Kato, Satoshi AU - Kato S AD - Department of Orthopedic Surgery, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Ishikawa, Japan. AD - Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Japan. FAU - Ohba, Tetsuro AU - Ohba T AD - Department of Orthopedic Surgery, University of Yamanashi, Chuo, Yamanashi, Japan. AD - Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Japan. FAU - Inami, Satoshi AU - Inami S AD - Department of Orthopedic Surgery, Dokkyo Medical University School of Medicine, Shimotsuga-gun, Tochigi, Japan. AD - Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Japan. FAU - Fujibayashi, Shunsuke AU - Fujibayashi S AD - Department of Orthopedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Kyoto, Japan. AD - Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Japan. FAU - Katoh, Hiroyuki AU - Katoh H AD - Department of Orthopedic Surgery, Surgical Science, Tokai University School of Medicine, isehara, Kanagawa, Japan. AD - Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Japan. FAU - Kanno, Haruo AU - Kanno H AD - Department of Orthopedic Surgery, Tohoku University School of Medicine, Sendai, Miyagi, Japan. AD - Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Japan. FAU - Imagama, Shiro AU - Imagama S AD - Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan. AD - Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Japan. FAU - Koda, Masao AU - Koda M AD - Department of Orthopedic Surgery, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan. AD - Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Japan. FAU - Kawaguchi, Yoshiharu AU - Kawaguchi Y AD - Department of Orthopedic Surgery, Faculty of Medicine, University of Toyama, Toyama, Toyama, Japan. AD - Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Japan. FAU - Takeshita, Katsushi AU - Takeshita K AD - Department of Orthopedics, Jichi Medical University, Shimotsuke, Tochigi, Japan. AD - Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Japan. FAU - Matsumoto, Morio AU - Matsumoto M AD - Department of Orthopedic Surgery, School of Medicine, Keio University, Shinjuku-ku, Tokyo japan. AD - Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Japan. FAU - Ohtori, Seiji AU - Ohtori S AD - Department of Orthopedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Chiba, Japan. FAU - Yamazaki, Masashi AU - Yamazaki M AD - Department of Orthopedic Surgery, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan. AD - Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Japan. FAU - Okawa, Atsushi AU - Okawa A AD - Department of Orthopedic Surgery, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo, Japan. AD - Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Japan. LA - eng PT - Journal Article PL - United States TA - Spine (Phila Pa 1976) JT - Spine JID - 7610646 SB - IM MH - Cervical Vertebrae/diagnostic imaging MH - Humans MH - *Longitudinal Ligaments/pathology/surgery MH - Machine Learning MH - *Osteogenesis MH - Retrospective Studies MH - Treatment Outcome EDAT- 2021/05/25 06:00 MHDA- 2021/11/27 06:00 CRDT- 2021/05/24 10:01 PHST- 2021/05/25 06:00 [pubmed] PHST- 2021/11/27 06:00 [medline] PHST- 2021/05/24 10:01 [entrez] AID - 00007632-202112150-00007 [pii] AID - 10.1097/BRS.0000000000004125 [doi] PST - ppublish SO - Spine (Phila Pa 1976). 2021 Dec 15;46(24):1683-1689. doi: 10.1097/BRS.0000000000004125.