TY - JOUR
T1 - Preliminary clinical outcome of one-level Mobi-C total disc replacement in Japanese population
AU - Ishii, Ken
AU - Isogai, Norihiro
AU - Daimon, Kenshi
AU - Tanaka, Tomoharu
AU - Okada, Yoshifumi
AU - Sasao, Yutaka
AU - Nishiyama, Makoto
AU - Ebata, Shigeto
AU - Funao, Haruki
AU - Matsumoto, Morio
N1 - Publisher Copyright:
Copyright © 2021 The Japanese Society for Spine Surgery and Related Research.
PY - 2021
Y1 - 2021
N2 - Introduction: In 2018, the first Mobi-C® total disk replacement (TDR) case was performed in Japan. In this study, we examined the preliminary clinical outcome of Mobi-C® for degenerative cervical spine disease. Methods: We examined 24 consecutive patients who underwent 1-level TDR after 2018 and followed up for more than 6 months after surgery. The evaluation criteria included age, gender, diagnosis, follow-up period, surgical level, implant size, surgery time, intraoperative bleeding volume, complications, revision surgery, imaging findings, JOA score, and various questionnaires. Results: The mean age was 52.7 years, 13 males and 11 females. There were 15 cases of cervical disk herniation and 9 cases of cervical spondylosis. The mean follow-up period was 17.4 months. Surgical levels were C3/4 in 4 cases, C4/5 in 2 cases, C5/6 in 16 cases, and C6/7 in 2 cases. The mean operation time was 138.5 minutes, the amount of intraoperative bleeding was 32.1 ml, and there were no serious intraoperative complications. The range of motion of the affected level increased significantly, from 6.6 degrees preoperatively to 12.2 degrees at final follow-up. No patients required revision surgery at final follow-up, and there were no cases of heterotopic ossification or adjacent segment disease. One patient exhibited radiculopathy due to mild subsidence 1 year after surgery, and 1 had asymptomatic contact of device plates. Preoperative and final JOA scores improved from 11.7 to 15.8 points, and NRS improved from 4.3 to 1.3 points for neck pain and 4.3 to 1.7 points for arm pain. Preoperative and final NDI improved from 39.7% to 14.0%, and EQ-5D improved from 0.602 to 0.801. Conclusions: The short-term treatment outcomes of Mobi-C® TDR were generally favorable. Spine surgeons should comply with guidelines when introducing this procedure and strive to adopt this new technology in Japan.
AB - Introduction: In 2018, the first Mobi-C® total disk replacement (TDR) case was performed in Japan. In this study, we examined the preliminary clinical outcome of Mobi-C® for degenerative cervical spine disease. Methods: We examined 24 consecutive patients who underwent 1-level TDR after 2018 and followed up for more than 6 months after surgery. The evaluation criteria included age, gender, diagnosis, follow-up period, surgical level, implant size, surgery time, intraoperative bleeding volume, complications, revision surgery, imaging findings, JOA score, and various questionnaires. Results: The mean age was 52.7 years, 13 males and 11 females. There were 15 cases of cervical disk herniation and 9 cases of cervical spondylosis. The mean follow-up period was 17.4 months. Surgical levels were C3/4 in 4 cases, C4/5 in 2 cases, C5/6 in 16 cases, and C6/7 in 2 cases. The mean operation time was 138.5 minutes, the amount of intraoperative bleeding was 32.1 ml, and there were no serious intraoperative complications. The range of motion of the affected level increased significantly, from 6.6 degrees preoperatively to 12.2 degrees at final follow-up. No patients required revision surgery at final follow-up, and there were no cases of heterotopic ossification or adjacent segment disease. One patient exhibited radiculopathy due to mild subsidence 1 year after surgery, and 1 had asymptomatic contact of device plates. Preoperative and final JOA scores improved from 11.7 to 15.8 points, and NRS improved from 4.3 to 1.3 points for neck pain and 4.3 to 1.7 points for arm pain. Preoperative and final NDI improved from 39.7% to 14.0%, and EQ-5D improved from 0.602 to 0.801. Conclusions: The short-term treatment outcomes of Mobi-C® TDR were generally favorable. Spine surgeons should comply with guidelines when introducing this procedure and strive to adopt this new technology in Japan.
KW - Cervical Spondylosis
KW - Cervical disc herniation
KW - Cervical spine
KW - Clinical outcome
KW - Total disc replacement (TDR)
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U2 - 10.22603/SSRR.2021-0015
DO - 10.22603/SSRR.2021-0015
M3 - Article
AN - SCOPUS:85121211286
VL - 5
SP - 339
EP - 346
JO - Spine Surgery and Related Research
JF - Spine Surgery and Related Research
SN - 2432-261X
IS - 6
ER -