Clinical outcome of ultrasound-guided atelocollagen injection for patients with partial rotator cuff tear in an outpatient clinic: a preliminary study

Background Atelocollagen has been studied for restoration of rotator cuff tendon. In this study, we attempted to evaluate the clinical outcome of ultrasound-guided atelocollagen injection in an outpatient clinic for patients with partial rotator cuff tear. Methods We recruited 42 outpatients who vis...

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Main Authors: Sang Hoon Chae, Jae Yeon Won, Jae Chul Yoo
Format: Article
Language:English
Published: Korean Shoulder and Elbow Society 2020-06-01
Series:Clinics in Shoulder and Elbow
Subjects:
Online Access:http://www.cisejournal.org/upload/pdf/cise-2020-00066.pdf
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author Sang Hoon Chae
Jae Yeon Won
Jae Chul Yoo
author_facet Sang Hoon Chae
Jae Yeon Won
Jae Chul Yoo
author_sort Sang Hoon Chae
collection DOAJ
description Background Atelocollagen has been studied for restoration of rotator cuff tendon. In this study, we attempted to evaluate the clinical outcome of ultrasound-guided atelocollagen injection in an outpatient clinic for patients with partial rotator cuff tear. Methods We recruited 42 outpatients who visited our hospital from May 2019 to September 2019. Atelocollagen injection was performed in patients with partial rotator cuff tear diagnosed by magnetic resonance imaging and ultrasound. American Shoulder and Elbow Surgeons (ASES), Constant, Korean Shoulder Score (KSS) and Simple Shoulder Test (SST) scores, and range of motion were assessed before injection and after 2 months. Statistically, we analyzed the clinical results using the Wilcoxon signed-rank test. Results Finally, 15 patients were enrolled for analysis. There was no significant difference between pre- and post-injection in terms of range of motion, ASES (57.0 vs. 60.4), Constant (56.4 vs. 58.9), KSS (64.6 vs. 68.5), and pain-visual analog scale (4.2 vs. 3.7), except function-visual analog scale (F-VAS; 6.3 vs. 7.1) and SST (6.6 vs. 6.9). A significant difference was found in SST (P=0.046) and F-VAS (P=0.009). According to the ultrasound results at 2 months, we found hyperechoic materials in three of seven patients. The most common complication of atelocollagen injection was post-injection pain (53%, 8/15). Conclusions Ultrasound-guided atelocollagen injection for partial rotator cuff tear showed no significant change in terms of clinical outcomes, except for F-vas and SST score. Tendon regeneration was not clear due to the remnants of atelocollagen present at 2-month follow-up ultrasound. There seems to be alarming post-injection pain for 2 to 3 days in the patients who received atelocollagen injection in an outpatient clinic.
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spelling doaj.art-6f69e67a8ef3421faa31f91fd2f52dd42024-02-02T01:01:34ZengKorean Shoulder and Elbow SocietyClinics in Shoulder and Elbow2288-87212020-06-01232808510.5397/cise.2020.00066763Clinical outcome of ultrasound-guided atelocollagen injection for patients with partial rotator cuff tear in an outpatient clinic: a preliminary studySang Hoon ChaeJae Yeon WonJae Chul YooBackground Atelocollagen has been studied for restoration of rotator cuff tendon. In this study, we attempted to evaluate the clinical outcome of ultrasound-guided atelocollagen injection in an outpatient clinic for patients with partial rotator cuff tear. Methods We recruited 42 outpatients who visited our hospital from May 2019 to September 2019. Atelocollagen injection was performed in patients with partial rotator cuff tear diagnosed by magnetic resonance imaging and ultrasound. American Shoulder and Elbow Surgeons (ASES), Constant, Korean Shoulder Score (KSS) and Simple Shoulder Test (SST) scores, and range of motion were assessed before injection and after 2 months. Statistically, we analyzed the clinical results using the Wilcoxon signed-rank test. Results Finally, 15 patients were enrolled for analysis. There was no significant difference between pre- and post-injection in terms of range of motion, ASES (57.0 vs. 60.4), Constant (56.4 vs. 58.9), KSS (64.6 vs. 68.5), and pain-visual analog scale (4.2 vs. 3.7), except function-visual analog scale (F-VAS; 6.3 vs. 7.1) and SST (6.6 vs. 6.9). A significant difference was found in SST (P=0.046) and F-VAS (P=0.009). According to the ultrasound results at 2 months, we found hyperechoic materials in three of seven patients. The most common complication of atelocollagen injection was post-injection pain (53%, 8/15). Conclusions Ultrasound-guided atelocollagen injection for partial rotator cuff tear showed no significant change in terms of clinical outcomes, except for F-vas and SST score. Tendon regeneration was not clear due to the remnants of atelocollagen present at 2-month follow-up ultrasound. There seems to be alarming post-injection pain for 2 to 3 days in the patients who received atelocollagen injection in an outpatient clinic.http://www.cisejournal.org/upload/pdf/cise-2020-00066.pdfatelocollagenpartial rotator cuff tearultrasound-guided injectionpreliminary study
spellingShingle Sang Hoon Chae
Jae Yeon Won
Jae Chul Yoo
Clinical outcome of ultrasound-guided atelocollagen injection for patients with partial rotator cuff tear in an outpatient clinic: a preliminary study
Clinics in Shoulder and Elbow
atelocollagen
partial rotator cuff tear
ultrasound-guided injection
preliminary study
title Clinical outcome of ultrasound-guided atelocollagen injection for patients with partial rotator cuff tear in an outpatient clinic: a preliminary study
title_full Clinical outcome of ultrasound-guided atelocollagen injection for patients with partial rotator cuff tear in an outpatient clinic: a preliminary study
title_fullStr Clinical outcome of ultrasound-guided atelocollagen injection for patients with partial rotator cuff tear in an outpatient clinic: a preliminary study
title_full_unstemmed Clinical outcome of ultrasound-guided atelocollagen injection for patients with partial rotator cuff tear in an outpatient clinic: a preliminary study
title_short Clinical outcome of ultrasound-guided atelocollagen injection for patients with partial rotator cuff tear in an outpatient clinic: a preliminary study
title_sort clinical outcome of ultrasound guided atelocollagen injection for patients with partial rotator cuff tear in an outpatient clinic a preliminary study
topic atelocollagen
partial rotator cuff tear
ultrasound-guided injection
preliminary study
url http://www.cisejournal.org/upload/pdf/cise-2020-00066.pdf
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AT jaeyeonwon clinicaloutcomeofultrasoundguidedatelocollageninjectionforpatientswithpartialrotatorcufftearinanoutpatientclinicapreliminarystudy
AT jaechulyoo clinicaloutcomeofultrasoundguidedatelocollageninjectionforpatientswithpartialrotatorcufftearinanoutpatientclinicapreliminarystudy