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Different Moro Zones of Psoas Major Affect the Clinical Outcomes after Oblique Lumbar Interbody Fusion: A Retrospective Study of 94 Patients

Authors :
Zefeng Song
Xingda Chen
Zelin Zhou
Wanyan Chen
Guangye Zhu
Rueishiuan Jiang
Peng Zhang
Shaohao Lin
Xiaowen Wang
Xiang Yu
Hui Ren
De Liang
Jianchao Cui
Jingjing Tang
Xiaobing Jiang
Source :
Journal of Clinical Medicine, Vol 12, Iss 3, p 989 (2023)
Publication Year :
2023
Publisher :
MDPI AG, 2023.

Abstract

Oblique lumbar interbody fusion (OLIF) has been driven to the maturity stage in recent years. However, postoperative symptoms such as thigh paresthesia resulting from intraoperative retraction of the psoas major (PM) have sometimes occurred. The aim of this study was to assess the different positions and morphology of PM muscles and their relationship with clinical outcomes after OLIF by introducing the Moro zones. Patients who underwent L4-5 OLIF at our institution between April 2019 and June 2021 were reviewed and all data were recorded. All patients were grouped by Moro zones into a Moro A cohort and a Moro I and II cohort based on the front edges of their left PM muscles. A total of 94 patients were recruited, including 57 in the Moro A group and 37 in the Moro I and II group. Postoperative thigh pain or numbness occurred in 12 (21.1%) and 2 (5.4%) patients in the Moro A group and the Moro I and II group, respectively. There was no difference in the psoas major transverse diameter (PMTD) between groups preoperatively, while longer PMTD was revealed postoperatively in the Moro A group. The operating window (OW) and psoas major sagittal diameter (PMSD) showed significant differences within and between groups. Thirteen patients had teardrop-shaped PM muscles, with 92.3% in the Moro A group showing significantly worse clinical scores at 1-week follow-up. The Moro zones of the PM affected the short-term outcomes after OLIF. Preoperative measurements and analysis of OW, PMSD and PM morphology should be performed as necessary to predict short-term outcomes.

Details

Language :
English
ISSN :
20770383
Volume :
12
Issue :
3
Database :
Directory of Open Access Journals
Journal :
Journal of Clinical Medicine
Publication Type :
Academic Journal
Accession number :
edsdoj.8c26750de9e74cf49d154c6455f08a48
Document Type :
article
Full Text :
https://doi.org/10.3390/jcm12030989