Kosei Nagata, Hideki Nakamoto, So Kato, Yujiro Takeshita, Naohiro Kawamura, Takashi Ono, Akiro Higashikawa, Masayoshi Fukushima, Seiichi Azuma, Nobuhiro Hara, Hiroyuki Oka, Ko Matsudaira, Sakae Tanaka, Yasushi Oshima

May 2021, Volume 30, Issue 5, pp 1226 - 1234 Original Article Read Full Article 10.1007/s00586-021-06815-2

First Online: 20 March 2021


To elucidate the minimum clinically important change (MCIC) of the physical component summary (PCS) of the Short Form-12, Oswestry Disability Index (ODI), EuroQOL-5 dimensions (EQ-5D), and the Core Outcome Measures Index (COMI) in patients aged ≥ 75 years undergoing lumbar spine surgery.


We retrospectively reviewed patients aged ≥ 75 years with degenerative lumbar spine disease who underwent lumbar spine decompression or fusion surgery within three levels between April 2017 and June 2018. We also evaluated patients aged 


A total of 247 patients aged ≥ 75 years and 398 patients aged 


In patients aged ≥ 75 years, PCS may not be feasible for evaluation of health transition. The MCIC value for ODI score was higher and that for EQ-5D/COMI score was lower in patients aged ≥ 75 years, compared with those in patients aged 

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