Correlation of Paraspinal Muscle Mass With Decompensation of Sagittal Adult Spinal Deformity After Setting of Fatigue Post 10-Minute Walk

Objective The purpose of this study was to investigate the changes in spinopelvic parameters before and after the setting of muscle fatigue along with its correlation with pre-existing paraspinal and psoas muscle mass. Methods Single-center retrospective review of prospectively collected data was co...

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Main Authors: Junseok Bae, Ashwin Sathe, Shih-Min Lee, Alexander A. Theologis, Vedat Deviren, Sang-Ho Lee
Format: Article
Language:English
Published: Korean Spinal Neurosurgery Society 2021-09-01
Series:Neurospine
Subjects:
Online Access:http://www.e-neurospine.org/upload/pdf/ns-2142510-255.pdf
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author Junseok Bae
Ashwin Sathe
Shih-Min Lee
Alexander A. Theologis
Vedat Deviren
Sang-Ho Lee
author_facet Junseok Bae
Ashwin Sathe
Shih-Min Lee
Alexander A. Theologis
Vedat Deviren
Sang-Ho Lee
author_sort Junseok Bae
collection DOAJ
description Objective The purpose of this study was to investigate the changes in spinopelvic parameters before and after the setting of muscle fatigue along with its correlation with pre-existing paraspinal and psoas muscle mass. Methods Single-center retrospective review of prospectively collected data was conducted on 145-adults with symptomatic loss of lumbar lordosis (LL). Radiographs were taken before and after walking for 10 minutes. Magnetic resonance imaging was used to calculate paraspinal muscle (PSM) cross-sectional area (CSA), mean signal intensity, fatty infiltration (FI), and lean muscle mass at thoracolumbar junction (T12) and lower lumbar level (L4). Psoas CSA was calculated at L3. Patients were divided into 2 groups namely compensated sagittal deformity (CSD) (SVA≤4 cm, PT>20°) and decompensated sagittal deformity (DSD) (SVA>4 cm, PT>20°) based on prewalk measurements. Results Initial mean SVA was 1.8 cm and 11 cm for CSD and DSD respectively (p < 0.01). After walking, significant deteriorations in SVA, PT–LL (p < 0.01) were observed in CSD without significant change in thoracic kyphosis (TK). All sagittal parameters in DSD deteriorated significantly. DSD group had significantly poorer PSM quality at T12 and L4 compared to CSD group. In CSD group, sagittal decompensation correlated with muscle quality, i.e., decreases in LL (ΔLL) correlated with CSA of PSM/vertebral body (VB) at L4 (r=-0.412, p=0.046) while increases in TK (ΔTK) correlated with CSA of PSM/VB at T12 (r=0.477, p=0.018). ΔSVA and ΔPT correlated with FI at L4 (r=0.577, p=0.003 and r=-0.407, p=0.048, respectively). DSD group, had weak correlations (-0.3<r<-0.1) between changes in sagittal and PSM parameters. Conclusion PSM quality in adults with spinal deformity correlates with patients’ ability to maintain an upright posture and sagittal decompensation after walking for 10 minutes.
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spelling doaj.art-06e6ba826f214bfaa7fe03c796748a2b2024-02-02T18:56:46ZengKorean Spinal Neurosurgery SocietyNeurospine2586-65832586-65912021-09-0118349550310.14245/ns.2142510.2551172Correlation of Paraspinal Muscle Mass With Decompensation of Sagittal Adult Spinal Deformity After Setting of Fatigue Post 10-Minute WalkJunseok Bae0Ashwin Sathe1Shih-Min Lee2Alexander A. Theologis3Vedat Deviren4Sang-Ho Lee5 Department of Neurological Surgery, Wooridul Spine Hospital, Seoul, Korea Department of Neurological Surgery, Wooridul Spine Hospital, Seoul, Korea Department of Neurological Surgery, Wooridul Spine Hospital, Seoul, Korea Department of Orthopaedic Surgery, University of California – San Francisco (UCSF), San Francisco, CA, USA Department of Orthopaedic Surgery, University of California – San Francisco (UCSF), San Francisco, CA, USA Department of Neurological Surgery, Wooridul Spine Hospital, Seoul, KoreaObjective The purpose of this study was to investigate the changes in spinopelvic parameters before and after the setting of muscle fatigue along with its correlation with pre-existing paraspinal and psoas muscle mass. Methods Single-center retrospective review of prospectively collected data was conducted on 145-adults with symptomatic loss of lumbar lordosis (LL). Radiographs were taken before and after walking for 10 minutes. Magnetic resonance imaging was used to calculate paraspinal muscle (PSM) cross-sectional area (CSA), mean signal intensity, fatty infiltration (FI), and lean muscle mass at thoracolumbar junction (T12) and lower lumbar level (L4). Psoas CSA was calculated at L3. Patients were divided into 2 groups namely compensated sagittal deformity (CSD) (SVA≤4 cm, PT>20°) and decompensated sagittal deformity (DSD) (SVA>4 cm, PT>20°) based on prewalk measurements. Results Initial mean SVA was 1.8 cm and 11 cm for CSD and DSD respectively (p < 0.01). After walking, significant deteriorations in SVA, PT–LL (p < 0.01) were observed in CSD without significant change in thoracic kyphosis (TK). All sagittal parameters in DSD deteriorated significantly. DSD group had significantly poorer PSM quality at T12 and L4 compared to CSD group. In CSD group, sagittal decompensation correlated with muscle quality, i.e., decreases in LL (ΔLL) correlated with CSA of PSM/vertebral body (VB) at L4 (r=-0.412, p=0.046) while increases in TK (ΔTK) correlated with CSA of PSM/VB at T12 (r=0.477, p=0.018). ΔSVA and ΔPT correlated with FI at L4 (r=0.577, p=0.003 and r=-0.407, p=0.048, respectively). DSD group, had weak correlations (-0.3<r<-0.1) between changes in sagittal and PSM parameters. Conclusion PSM quality in adults with spinal deformity correlates with patients’ ability to maintain an upright posture and sagittal decompensation after walking for 10 minutes.http://www.e-neurospine.org/upload/pdf/ns-2142510-255.pdfdeformitykyphosisfatigueparaspinal muscles
spellingShingle Junseok Bae
Ashwin Sathe
Shih-Min Lee
Alexander A. Theologis
Vedat Deviren
Sang-Ho Lee
Correlation of Paraspinal Muscle Mass With Decompensation of Sagittal Adult Spinal Deformity After Setting of Fatigue Post 10-Minute Walk
Neurospine
deformity
kyphosis
fatigue
paraspinal muscles
title Correlation of Paraspinal Muscle Mass With Decompensation of Sagittal Adult Spinal Deformity After Setting of Fatigue Post 10-Minute Walk
title_full Correlation of Paraspinal Muscle Mass With Decompensation of Sagittal Adult Spinal Deformity After Setting of Fatigue Post 10-Minute Walk
title_fullStr Correlation of Paraspinal Muscle Mass With Decompensation of Sagittal Adult Spinal Deformity After Setting of Fatigue Post 10-Minute Walk
title_full_unstemmed Correlation of Paraspinal Muscle Mass With Decompensation of Sagittal Adult Spinal Deformity After Setting of Fatigue Post 10-Minute Walk
title_short Correlation of Paraspinal Muscle Mass With Decompensation of Sagittal Adult Spinal Deformity After Setting of Fatigue Post 10-Minute Walk
title_sort correlation of paraspinal muscle mass with decompensation of sagittal adult spinal deformity after setting of fatigue post 10 minute walk
topic deformity
kyphosis
fatigue
paraspinal muscles
url http://www.e-neurospine.org/upload/pdf/ns-2142510-255.pdf
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