Abstract

Positive association between ossification of the posterior longitudinal ligament of the spine (OPLL) and obesity is widely recognized; however, few studies focused on the effects of obesity on treatment of cervical OPLL. The effects of obesity on surgical treatment of cervical OPLL were investigated by a Japanese nationwide, prospective study. Overall, 478 patients with cervical myelopathy due to OPLL were prospectively enrolled. To clarify the effects of obesity on the surgical treatment for cervical OPLL, patients were stratified into two groups, non-obese (< BMI 30.0 kg/m2) and obese (≥ BMI 30.0 kg/m2) groups. The mean age of the obese group was significantly younger than that of non-obese group. There were no significant differences between the two groups in other demographic information, medical history, and clinical and radiographical findings. Alternatively, the obese group had a significantly higher rate of surgical site infection (SSI) than that of non-obese group. Approach-specific analyses revealed that the SSI was significantly higher in the obese group than in the non-obese group. A logistic regression analysis revealed that age, BMI, and duration of symptoms were significant factors affecting the postoperative minimum clinically important difference success. The result of this study provides useful information for future cervical OPLL treatment.

Details

Title
Impact of obesity on cervical ossification of the posterior longitudinal ligament: a nationwide prospective study
Author
Mori Kanji 1 ; Yoshii Toshitaka 2 ; Egawa Satoru 2 ; Sakai Kenichiro 3 ; Kusano Kazuo 4 ; Tsutsui Shunji 5 ; Hirai Takashi 2 ; Matsukura Yu 2 ; Wada Kanichiro 6 ; Katsumi Keiichi 7 ; Koda Masao 8 ; Kimura Atsushi 9 ; Furuya Takeo 10 ; Maki, Satoshi 10 ; Nagoshi Narihito 11 ; Nishida Norihiro 12 ; Nagamoto Yukitaka 13 ; Oshima Yasushi 14 ; Ando Kei 15 ; Nakashima Hiroaki 15 ; Takahata Masahiko 16 ; Nakajima Hideaki 17 ; Murata Kazuma 18 ; Miyagi Masayuki 19 ; Kaito Takashi 20 ; Yamada Kei 21 ; Banno Tomohiro 22 ; Kato Satoshi 23 ; Ohba Tetsuro 24 ; Inami Satoshi 25 ; Fujibayashi Shunsuke 26 ; Katoh Hiroyuki 27 ; Kanno Haruo 28 ; Taneichi Hiroshi 25 ; Imagama Shiro 15 ; Kawaguchi Yoshiharu 29 ; Takeshita Katsushi 9 ; Matsumoto Morio 11 ; Yamazaki Masashi 8 ; Okawa Atsushi 2 

 Shiga University of Medical Science, Department of Orthopaedic Surgery, Otsu, Japan (GRID:grid.410827.8) (ISNI:0000 0000 9747 6806); Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Tokyo, Japan (GRID:grid.410827.8) 
 Tokyo Medical and Dental University, Department of Orthopedic Surgery, Tokyo, Japan (GRID:grid.265073.5) (ISNI:0000 0001 1014 9130); Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Tokyo, Japan (GRID:grid.265073.5) 
 Saiseikai Kawaguchi General Hospital, Department of Orthopedic Surgery, Kawaguchishi, Japan (GRID:grid.265073.5); Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Tokyo, Japan (GRID:grid.265073.5) 
 Kudanzaka Hospital, Department of Orthopedic Surgery, Chiyodaku, Japan (GRID:grid.415524.3) (ISNI:0000 0004 1764 761X); Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Tokyo, Japan (GRID:grid.415524.3) 
 Wakayama Medical University, Department of Orthopaedic Surgery, Wakayama, Japan (GRID:grid.412857.d) (ISNI:0000 0004 1763 1087); Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Tokyo, Japan (GRID:grid.412857.d) 
 Hirosaki University Graduate School of Medicine, Department of Orthopedic Surgery, Hirosaki, Japan (GRID:grid.257016.7) (ISNI:0000 0001 0673 6172); Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Tokyo, Japan (GRID:grid.257016.7) 
 Niigata University Medical and Dental General Hospital, Department of Orthopedic Surgery, Niigata, Japan (GRID:grid.260975.f) (ISNI:0000 0001 0671 5144); Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Tokyo, Japan (GRID:grid.260975.f) 
 University of Tsukuba, Department of Orthopedic Surgery, Faculty of Medicine, Tsukuba, Japan (GRID:grid.20515.33) (ISNI:0000 0001 2369 4728); Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Tokyo, Japan (GRID:grid.20515.33) 
 Jichi Medical University, Department of Orthopedics, Shimotsuke, Japan (GRID:grid.410804.9) (ISNI:0000000123090000); Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Tokyo, Japan (GRID:grid.410804.9) 
10  Chiba University Graduate School of Medicine, Department of Orthopedic Surgery, Chiba, Japan (GRID:grid.136304.3) (ISNI:0000 0004 0370 1101); Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Tokyo, Japan (GRID:grid.136304.3) 
11  Keio University School of Medicine, Department of Orthopaedic Surgery, Tokyo, Japan (GRID:grid.26091.3c) (ISNI:0000 0004 1936 9959); Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Tokyo, Japan (GRID:grid.26091.3c) 
12  Yamaguchi University Graduate School, of Medicine, Department of Orthopedic Surgery, Ube, Japan (GRID:grid.268397.1) (ISNI:0000 0001 0660 7960); Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Tokyo, Japan (GRID:grid.268397.1) 
13  Osaka Rosai Hospital, Department of Orthopedic Surgery, Sakaishi, Japan (GRID:grid.417001.3) (ISNI:0000 0004 0378 5245); Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Tokyo, Japan (GRID:grid.417001.3) 
14  The University of Tokyo, Department of Orthopaedic Surgery, Faculty of Medicine, Tokyo, Japan (GRID:grid.26999.3d) (ISNI:0000 0001 2151 536X); Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Tokyo, Japan (GRID:grid.26999.3d) 
15  Nagoya University Graduate School of Medicine, Department of Orthopedic Surgery, Nagoya, Japan (GRID:grid.27476.30) (ISNI:0000 0001 0943 978X); Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Tokyo, Japan (GRID:grid.27476.30) 
16  Hokkaido University, Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Sapporo, Japan (GRID:grid.39158.36) (ISNI:0000 0001 2173 7691); Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Tokyo, Japan (GRID:grid.39158.36) 
17  University of Fukui, Department of Orthopaedics and Rehabilitation Medicine, Faculty of Medical Sciences, Yoshida-gun, Japan (GRID:grid.163577.1) (ISNI:0000 0001 0692 8246); Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Tokyo, Japan (GRID:grid.163577.1) 
18  Tokyo Medical University, Department of Orthopedic Surgery, Tokyo, Japan (GRID:grid.410793.8) (ISNI:0000 0001 0663 3325); Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Tokyo, Japan (GRID:grid.410793.8) 
19  Kitasato University, School of Medicine, Department of Orthopedic Surgery, Sagamiharashi, Japan (GRID:grid.410786.c) (ISNI:0000 0000 9206 2938); Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Tokyo, Japan (GRID:grid.410786.c) 
20  Osaka University, Department of Orthopedic Surgery, Graduate School of Medicine, Suita-shi, Japan (GRID:grid.136593.b) (ISNI:0000 0004 0373 3971); Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Tokyo, Japan (GRID:grid.136593.b) 
21  Kurume University School of Medicine, Department of Orthopaedic Surgery, Kurume-shi, Japan (GRID:grid.410781.b) (ISNI:0000 0001 0706 0776); Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Tokyo, Japan (GRID:grid.410781.b) 
22  Hamamatsu University School of Medicine, Department of Orthopedic Surgery, Hamamatsu, Japan (GRID:grid.505613.4) (ISNI:0000 0000 8937 6696); Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Tokyo, Japan (GRID:grid.505613.4) 
23  Kanazawa University, Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa, Japan (GRID:grid.9707.9) (ISNI:0000 0001 2308 3329); Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Tokyo, Japan (GRID:grid.9707.9) 
24  University of Yamanashi, Department of Orthopedic Surgery, Yamanashi, Japan (GRID:grid.267500.6) (ISNI:0000 0001 0291 3581); Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Tokyo, Japan (GRID:grid.267500.6) 
25  Dokkyo Medical University School of Medicine, Department of Orthopaedic Surgery, Shimotsuga-gun, Japan (GRID:grid.255137.7) (ISNI:0000 0001 0702 8004); Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Tokyo, Japan (GRID:grid.255137.7) 
26  Kyoto University, Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto, Japan (GRID:grid.258799.8) (ISNI:0000 0004 0372 2033); Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Tokyo, Japan (GRID:grid.258799.8) 
27  Tokai University School of Medicine, Department of Orthopedic Surgery, Surgical Science, Isehara, Japan (GRID:grid.265061.6) (ISNI:0000 0001 1516 6626); Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Tokyo, Japan (GRID:grid.265061.6) 
28  Tohoku University School of Medicine, Department of Orthopaedic Surgery, Sendai, Japan (GRID:grid.69566.3a) (ISNI:0000 0001 2248 6943); Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Tokyo, Japan (GRID:grid.69566.3a) 
29  University of Toyama, Department of Orthopedic Surgery, Faculty of Medicine, Toyama, Japan (GRID:grid.267346.2) (ISNI:0000 0001 2171 836X); Japanese Multicenter Research Organization for Ossification of the Spinal Ligament, Tokyo, Japan (GRID:grid.267346.2) 
Publication year
2022
Publication date
2022
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2669224888
Copyright
© The Author(s) 2022. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.