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Comparison of Gene Expression of Inflammation- and Fibrosis-Related Factors Between the Anterior and Posterior Capsule in Patients With Rotator Cuff Tear and Shoulder Stiffness
- Source :
- Orthopaedic Journal of Sports Medicine
- Publication Year :
- 2021
- Publisher :
- SAGE Publications, 2021.
-
Abstract
- Background: Arthroscopic capsular release is an effective treatment for refractory shoulder stiffness, yet there are no basic studies that can explain the extent of the release. Purpose: This study aimed to compare the genetic expression of inflammation- and fibrosis-related factors between the anterior and posterior capsules in patients with shoulder stiffness and rotator cuff tear. Study Design: Descriptive laboratory study. Methods: Enrolled in this study were 35 patients who underwent arthroscopic capsular release for shoulder stiffness along with the rotator cuff repair. Anterior and posterior glenohumeral joint capsular tissues were obtained during the capsular release. For the control tissue, anterior capsule was obtained from 40 patients without stiffness who underwent arthroscopic rotator cuff repair. The gene expression of collagen types I and III, fibronectin, extracellular matrix, basic fibroblast growth factor, transforming growth factor–β, connective tissue growth factor, matrix metalloproteinase (MMP)-1, MMP-2, MMP-9, tissue inhibitor of metalloproteinase (TIMP)-1, TIMP-2, intercellular adhesion molecule 1, interleukin 1, and tumor necrotizing factor–α were analyzed using real-time reverse transcription polymerase chain reaction. Differences in gene expression between the anterior capsule, the posterior capsule, and the control tissue were compared with the Kruskal-Wallis test. Results: The expression levels of collagen types I and III were significantly higher in the anterior capsule with stiffness com (pared with both the posterior capsule with stiffness ( P = .010 for both) and the control ( P = .038 and .010, respectively). The levels of fibronectin, MMP-2, and MMP-9 in the anterior capsule were significantly higher than in both the posterior capsule ( P = .013, .003, and .006, respectively) and the control ( P = .014, .003, and .005, respectively). Conclusion: Genetic analysis of the shoulder capsule revealed that more fibrogenic processes occur in the anterior capsule compared with the posterior capsule in patients with shoulder stiffness. Clinical Relevance: Capsular release for shoulder stiffness should be more focused on the anterior capsule than on the posterior capsule.
- Subjects :
- musculoskeletal diseases
medicine.medical_specialty
business.industry
shoulder
fibrosis
Inflammation
medicine.disease
Shoulder stiffness
Article
cytokines
Surgery
arthroscopic capsular release
stiffness
medicine.anatomical_structure
Refractory
Fibrosis
inflammation
Gene expression
medicine
Orthopedics and Sports Medicine
In patient
Arthroscopic Capsular Release
Rotator cuff
medicine.symptom
business
Subjects
Details
- Language :
- English
- ISSN :
- 23259671
- Volume :
- 9
- Issue :
- 10
- Database :
- OpenAIRE
- Journal :
- Orthopaedic Journal of Sports Medicine
- Accession number :
- edsair.doi.dedup.....92e66a142ec4e590dbfaace90dfbf863