Evaluation of muscle stiffness in adhesive capsulitis with Myoton PRO
Background: Adhesive capsulitis (AC) is characterized by pain and limited range of motion, caused by stiffness of the joint capsule and coracohumeral ligament. On the other hand, there have been few reports on muscle stiffness in AC. The purpose of this study was to assess muscle stiffness in patien...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-01-01
|
| Series: | JSES International |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666638322001840 |
| _version_ | 1797938069852127232 |
|---|---|
| author | Wataru Kurashina, PT, MS Yuki Iijima, MD Hideyuki Sasanuma, MD Tomohiro Saito, MD Katsushi Takeshita, MD |
| author_facet | Wataru Kurashina, PT, MS Yuki Iijima, MD Hideyuki Sasanuma, MD Tomohiro Saito, MD Katsushi Takeshita, MD |
| author_sort | Wataru Kurashina, PT, MS |
| collection | DOAJ |
| description | Background: Adhesive capsulitis (AC) is characterized by pain and limited range of motion, caused by stiffness of the joint capsule and coracohumeral ligament. On the other hand, there have been few reports on muscle stiffness in AC. The purpose of this study was to assess muscle stiffness in patients of AC with a portable and noninvasive device, Myoton PRO. We hypothesized that muscle stiffness around shoulder joint increases in AC. Methods: At first, we surveyed correlation between Myoton PRO and shear wave elastography with phantoms. Second, reproducibility and repeatability of healthy volunteers with Myoton PRO were evaluated. Finally, muscle stiffness was measured in 40 patients who were diagnosed with AC. Muscle stiffness was quantitatively measured with Myoton PRO. We compared the stiffness of the anterior deltoid (AD), pectoralis major, and latissimus dorsi (LD) in AC patients on both the affected and nonaffected sides. Results: Correlation coefficient in shear wave elastography and Myoton PRO was 0.99(P = .001). Reliability of intraoperator and interoperator with Myoton PRO was 0.9 or higher. Muscle stiffness values (N/m) of the AD, pectoralis major, and LD were 355 ± 61, 252 ± 54, 207 ± 51 in the affected sides and 328 ± 50, 252 ± 41, 186 ± 37 in the nonaffected sides, and the differences were significant in the AD and LD (P = .005, P = .002, respectively). Conclusions: We used Myoton PRO to evaluate muscle stiffness in AC. The AD and LD muscles of AC patients were significantly stiffer on the affected side compared to the nonaffected side. |
| first_indexed | 2024-04-10T18:53:57Z |
| format | Article |
| id | doaj.art-a9f5b85ca19040ca904493fab225144b |
| institution | Directory Open Access Journal |
| issn | 2666-6383 |
| language | English |
| last_indexed | 2024-04-10T18:53:57Z |
| publishDate | 2023-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | JSES International |
| spelling | doaj.art-a9f5b85ca19040ca904493fab225144b2023-02-01T04:28:05ZengElsevierJSES International2666-63832023-01-01712529Evaluation of muscle stiffness in adhesive capsulitis with Myoton PROWataru Kurashina, PT, MS0Yuki Iijima, MD1Hideyuki Sasanuma, MD2Tomohiro Saito, MD3Katsushi Takeshita, MD4Department of Rehabilitation, Tochigi Medical Center Shimotsuga, Ohira, Tochigi, Japan; Graduate School of Medicine, Jichi Medical University, Tochigi, JapanDepartment of Orthopaedic Surgery, Jichi Medical University, Tochigi, Japan; Corresponding author: Yuki Iijima, MD, Department of Orthopaedic Surgery, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi 3292740822, Japan.Department of Orthopaedic Surgery, Jichi Medical University, Tochigi, JapanDepartment of Orthopaedic Surgery, Jichi Medical University, Tochigi, JapanDepartment of Orthopaedic Surgery, Jichi Medical University, Tochigi, JapanBackground: Adhesive capsulitis (AC) is characterized by pain and limited range of motion, caused by stiffness of the joint capsule and coracohumeral ligament. On the other hand, there have been few reports on muscle stiffness in AC. The purpose of this study was to assess muscle stiffness in patients of AC with a portable and noninvasive device, Myoton PRO. We hypothesized that muscle stiffness around shoulder joint increases in AC. Methods: At first, we surveyed correlation between Myoton PRO and shear wave elastography with phantoms. Second, reproducibility and repeatability of healthy volunteers with Myoton PRO were evaluated. Finally, muscle stiffness was measured in 40 patients who were diagnosed with AC. Muscle stiffness was quantitatively measured with Myoton PRO. We compared the stiffness of the anterior deltoid (AD), pectoralis major, and latissimus dorsi (LD) in AC patients on both the affected and nonaffected sides. Results: Correlation coefficient in shear wave elastography and Myoton PRO was 0.99(P = .001). Reliability of intraoperator and interoperator with Myoton PRO was 0.9 or higher. Muscle stiffness values (N/m) of the AD, pectoralis major, and LD were 355 ± 61, 252 ± 54, 207 ± 51 in the affected sides and 328 ± 50, 252 ± 41, 186 ± 37 in the nonaffected sides, and the differences were significant in the AD and LD (P = .005, P = .002, respectively). Conclusions: We used Myoton PRO to evaluate muscle stiffness in AC. The AD and LD muscles of AC patients were significantly stiffer on the affected side compared to the nonaffected side.http://www.sciencedirect.com/science/article/pii/S2666638322001840Adhesive capsulitisMuscle stiffnessMyoton PROShear wave elastographyAnterior deltoidPec major |
| spellingShingle | Wataru Kurashina, PT, MS Yuki Iijima, MD Hideyuki Sasanuma, MD Tomohiro Saito, MD Katsushi Takeshita, MD Evaluation of muscle stiffness in adhesive capsulitis with Myoton PRO JSES International Adhesive capsulitis Muscle stiffness Myoton PRO Shear wave elastography Anterior deltoid Pec major |
| title | Evaluation of muscle stiffness in adhesive capsulitis with Myoton PRO |
| title_full | Evaluation of muscle stiffness in adhesive capsulitis with Myoton PRO |
| title_fullStr | Evaluation of muscle stiffness in adhesive capsulitis with Myoton PRO |
| title_full_unstemmed | Evaluation of muscle stiffness in adhesive capsulitis with Myoton PRO |
| title_short | Evaluation of muscle stiffness in adhesive capsulitis with Myoton PRO |
| title_sort | evaluation of muscle stiffness in adhesive capsulitis with myoton pro |
| topic | Adhesive capsulitis Muscle stiffness Myoton PRO Shear wave elastography Anterior deltoid Pec major |
| url | http://www.sciencedirect.com/science/article/pii/S2666638322001840 |
| work_keys_str_mv | AT watarukurashinaptms evaluationofmusclestiffnessinadhesivecapsulitiswithmyotonpro AT yukiiijimamd evaluationofmusclestiffnessinadhesivecapsulitiswithmyotonpro AT hideyukisasanumamd evaluationofmusclestiffnessinadhesivecapsulitiswithmyotonpro AT tomohirosaitomd evaluationofmusclestiffnessinadhesivecapsulitiswithmyotonpro AT katsushitakeshitamd evaluationofmusclestiffnessinadhesivecapsulitiswithmyotonpro |