Cargando…

Changes in blood flow in the dorsal scapular artery and relationship to shoulder joint function in rotator cuff tears

BACKGROUND: One of the pain-related factors in rotator cuff tears (RCTs) is abnormal scapular motion, which is thought to be related to the levator scapulae muscle activation. Additionally, attention has recently focused on the peak systolic velocity (PSV) as one of the causes of pain, but blood flo...

Descripción completa

Detalles Bibliográficos
Autores principales: Kawabuchi, Keita, Nakamura, Masatoshi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10638572/
https://www.ncbi.nlm.nih.gov/pubmed/37969537
http://dx.doi.org/10.1016/j.jseint.2023.06.018
_version_ 1785146589823631360
author Kawabuchi, Keita
Nakamura, Masatoshi
author_facet Kawabuchi, Keita
Nakamura, Masatoshi
author_sort Kawabuchi, Keita
collection PubMed
description BACKGROUND: One of the pain-related factors in rotator cuff tears (RCTs) is abnormal scapular motion, which is thought to be related to the levator scapulae muscle activation. Additionally, attention has recently focused on the peak systolic velocity (PSV) as one of the causes of pain, but blood flow outside of the vessels supplying the rotator cuff has not been clarified. This study aimed to determine the difference in PSV in the dorsal scapular artery (DSA), which is the vessel that supplies the levator scapulae muscles, and the association between PSV and pain and shoulder function in patients with RCTs between the tear and nontear sides. METHODS: This study included 31 patients with RCTs with tear and nontear sides. Magnetic resonance imaging and radiographic examinations included Cofield classification, Goutallier classification, thickening of the coracohumeral ligament, and measurement of the acromiohumeral interval. Clinical evaluation included an automatic range of motion (ROM) for flexion, abduction, and external rotation (ER), a visual analog scale, and the Shoulder36. PSV was evaluated using ultrasound pulsed Doppler mode to assess PSV of DSA. The PSV of DSA on the first rib was drawn in the medial aspect of the suprascapular angle in the long axis, and the maximum PSV waveform was measured three times. The average value was used for further analysis. RESULTS: The PSV in the DSA was significantly higher (P = .04, 95% confidence interval: 0.2-7.6) on the tear (22.6 ± 7.4 cm/s) than the nontear sides (18.9 ± 6.9 cm/s). In addition, a significant negative correlation (r = −0.46, P = .0087) was found between PSV in DSA and ER on the tear side. CONCLUSION: This study revealed a significantly increased PSV in the DSA on the tear side in RCTs and negatively correlated with ER ROM. The results suggest that increased PSV in the DSA may contribute to ER ROM limitation in the glenohumeral joint.
format Online
Article
Text
id pubmed-10638572
institution National Center for Biotechnology Information
language English
publishDate 2023
publisher Elsevier
record_format MEDLINE/PubMed
spelling pubmed-106385722023-11-15 Changes in blood flow in the dorsal scapular artery and relationship to shoulder joint function in rotator cuff tears Kawabuchi, Keita Nakamura, Masatoshi JSES Int Shoulder BACKGROUND: One of the pain-related factors in rotator cuff tears (RCTs) is abnormal scapular motion, which is thought to be related to the levator scapulae muscle activation. Additionally, attention has recently focused on the peak systolic velocity (PSV) as one of the causes of pain, but blood flow outside of the vessels supplying the rotator cuff has not been clarified. This study aimed to determine the difference in PSV in the dorsal scapular artery (DSA), which is the vessel that supplies the levator scapulae muscles, and the association between PSV and pain and shoulder function in patients with RCTs between the tear and nontear sides. METHODS: This study included 31 patients with RCTs with tear and nontear sides. Magnetic resonance imaging and radiographic examinations included Cofield classification, Goutallier classification, thickening of the coracohumeral ligament, and measurement of the acromiohumeral interval. Clinical evaluation included an automatic range of motion (ROM) for flexion, abduction, and external rotation (ER), a visual analog scale, and the Shoulder36. PSV was evaluated using ultrasound pulsed Doppler mode to assess PSV of DSA. The PSV of DSA on the first rib was drawn in the medial aspect of the suprascapular angle in the long axis, and the maximum PSV waveform was measured three times. The average value was used for further analysis. RESULTS: The PSV in the DSA was significantly higher (P = .04, 95% confidence interval: 0.2-7.6) on the tear (22.6 ± 7.4 cm/s) than the nontear sides (18.9 ± 6.9 cm/s). In addition, a significant negative correlation (r = −0.46, P = .0087) was found between PSV in DSA and ER on the tear side. CONCLUSION: This study revealed a significantly increased PSV in the DSA on the tear side in RCTs and negatively correlated with ER ROM. The results suggest that increased PSV in the DSA may contribute to ER ROM limitation in the glenohumeral joint. Elsevier 2023-07-17 /pmc/articles/PMC10638572/ /pubmed/37969537 http://dx.doi.org/10.1016/j.jseint.2023.06.018 Text en © 2023 The Authors https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Shoulder
Kawabuchi, Keita
Nakamura, Masatoshi
Changes in blood flow in the dorsal scapular artery and relationship to shoulder joint function in rotator cuff tears
title Changes in blood flow in the dorsal scapular artery and relationship to shoulder joint function in rotator cuff tears
title_full Changes in blood flow in the dorsal scapular artery and relationship to shoulder joint function in rotator cuff tears
title_fullStr Changes in blood flow in the dorsal scapular artery and relationship to shoulder joint function in rotator cuff tears
title_full_unstemmed Changes in blood flow in the dorsal scapular artery and relationship to shoulder joint function in rotator cuff tears
title_short Changes in blood flow in the dorsal scapular artery and relationship to shoulder joint function in rotator cuff tears
title_sort changes in blood flow in the dorsal scapular artery and relationship to shoulder joint function in rotator cuff tears
topic Shoulder
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10638572/
https://www.ncbi.nlm.nih.gov/pubmed/37969537
http://dx.doi.org/10.1016/j.jseint.2023.06.018
work_keys_str_mv AT kawabuchikeita changesinbloodflowinthedorsalscapulararteryandrelationshiptoshoulderjointfunctioninrotatorcufftears
AT nakamuramasatoshi changesinbloodflowinthedorsalscapulararteryandrelationshiptoshoulderjointfunctioninrotatorcufftears