TY - JOUR
T1 - Selective Serotonin Reuptake Inhibitor Promotes Bone-Tendon Interface Healing in a Rotator Cuff Tear Rat Model
AU - Yoon, Jong Pil
AU - Yoon, Jee Wook
AU - Kim, Hun Min
AU - Oh, Joo Han
N1 - Publisher Copyright:
© 2022, Korean Tissue Engineering and Regenerative Medicine Society.
PY - 2022/8
Y1 - 2022/8
N2 - Background:: Selective serotonin reuptake inhibitor (SSRI) is believed to accelerate wound healing, and thus expected to have a positive effect on rotator cuff repair. We hypothesized that SSRI has a positive effect on the healing of the bone-tendon interface (BTI), and improved rotator cuff tear healing would be confirmed by mechanical strength measurements and histological assessment of the restored tendon. Methods:: The study used 40 adult male Sprague–Dawley wild-type rats. The animals were divided into two groups: group-SSRI, the supraspinatus repair with SSRI injection group, and group-C, conventional supraspinatus repair only without SSRI. Biomechanical and histological analyses were performed 8 weeks after index rotator cuff surgery. Results:: The ultimate load (N) was significantly higher in group-SSRI than in group-C (54.8 ± 56.9 Vs 25.1 ± 11.1, p =.031). In the histological evaluation, the Bonar score confirmed significant differences in collagen fiber density (group-C: 0.6 ± 0.5, group-SSRI: 1.1 ± 0.6, p =.024), vascularity (group-C: 0.1 ± 0.2, group-SSRI: 0.3 ± 0.4, p =.024) and cellularity (group-C: 1.7 ± 0.4, group-SSRI: 2.0 ± 0.0, p =.023) between the groups. Based on the total score, group-SSRI was significantly better compared with group-C (6.3 ± 2.7 Vs 4.3 ± 1.9, p =.019). Conclusion:: Our study demonstrated that SSRI could facilitate improved biomechanical and histological outcomes 8 weeks after rotator cuff repair in a rat model. Consequently, SSRI may improve healing after rotator cuff repair.
AB - Background:: Selective serotonin reuptake inhibitor (SSRI) is believed to accelerate wound healing, and thus expected to have a positive effect on rotator cuff repair. We hypothesized that SSRI has a positive effect on the healing of the bone-tendon interface (BTI), and improved rotator cuff tear healing would be confirmed by mechanical strength measurements and histological assessment of the restored tendon. Methods:: The study used 40 adult male Sprague–Dawley wild-type rats. The animals were divided into two groups: group-SSRI, the supraspinatus repair with SSRI injection group, and group-C, conventional supraspinatus repair only without SSRI. Biomechanical and histological analyses were performed 8 weeks after index rotator cuff surgery. Results:: The ultimate load (N) was significantly higher in group-SSRI than in group-C (54.8 ± 56.9 Vs 25.1 ± 11.1, p =.031). In the histological evaluation, the Bonar score confirmed significant differences in collagen fiber density (group-C: 0.6 ± 0.5, group-SSRI: 1.1 ± 0.6, p =.024), vascularity (group-C: 0.1 ± 0.2, group-SSRI: 0.3 ± 0.4, p =.024) and cellularity (group-C: 1.7 ± 0.4, group-SSRI: 2.0 ± 0.0, p =.023) between the groups. Based on the total score, group-SSRI was significantly better compared with group-C (6.3 ± 2.7 Vs 4.3 ± 1.9, p =.019). Conclusion:: Our study demonstrated that SSRI could facilitate improved biomechanical and histological outcomes 8 weeks after rotator cuff repair in a rat model. Consequently, SSRI may improve healing after rotator cuff repair.
KW - Anti-inflammatory agents
KW - Biomechanics
KW - Histology
KW - Rotator cuff healing
KW - Serotonin uptake inhibitors
UR - http://www.scopus.com/inward/record.url?scp=85128346087&partnerID=8YFLogxK
U2 - 10.1007/s13770-022-00444-6
DO - 10.1007/s13770-022-00444-6
M3 - Article
C2 - 35438456
AN - SCOPUS:85128346087
SN - 1738-2696
VL - 19
SP - 853
EP - 860
JO - Tissue Engineering and Regenerative Medicine
JF - Tissue Engineering and Regenerative Medicine
IS - 4
ER -