Interposition of acellular amniotic membrane at the tendon to bone interface would be better for healing than overlaying above the tendon to bone junction in the repair of rotator cuff injury.
10.1016/j.cjtee.2024.04.001
- Author:
Jiang-Tao WANG
1
;
Chun-Bao LI
2
;
Jia-Ting ZHANG
3
;
Ming-Yang AN
3
;
Gang ZHAO
3
;
Yu-Jie LIU
4
,
5
Author Information
1. Chinese PLA Medical School, Beijing, 100039, China; Department of Orthopedics, The 980th Hospital of PLA Joint Logistics Support Forces, Shijiazhuang, 050082, China.
2. Department of Orthopedics, The Forth Medical Center of Chinese PLA General Hospital, Beijing, 100089, China.
3. Chinese PLA Medical School, Beijing, 100039, China.
4. Department of Orthopedics, The Forth Medical Center of Chinese PLA General Hospital, Beijing, 100089, China; Department of Orthopedics, Hainan Hospital of Chinese PLA General Hospital, Sanya, 572013, Hainan province, China. Electronic address: lyujie301@
5. com.
- Publication Type:Journal Article
- Keywords:
Acellular amniotic membrane;
Rotator cuff;
Shoulder;
Suturing repair;
Tendon to bone healing
- MeSH:
Animals;
Rats, Sprague-Dawley;
Rotator Cuff Injuries/surgery*;
Amnion/transplantation*;
Rats;
Wound Healing;
Rotator Cuff/surgery*;
Male;
X-Ray Microtomography;
Tendons/surgery*;
Biomechanical Phenomena
- From:
Chinese Journal of Traumatology
2025;28(3):187-192
- CountryChina
- Language:English
-
Abstract:
PURPOSE:The retear rate of rotator cuff (RC) after surgery is high, and the rapid and functional enthesis regeneration remains a challenge. Whether acellular amniotic membrane (AAM) helps to promote the healing of tendon to bone and which treatment is better are both unclear. The study aims to investigate the effect of AAM on the healing of RC and the best treatment for RC repair.
METHODS:Thirty-three Sprague Dawley rats underwent RC transection and repair using microsurgical techniques and were randomly divided into the suturing repair only (SRO) group (n = 11), the AAM overlaying (AOL) group (n = 11), and the AAM interposition (AIP) group (n = 11), respectively. Rats were sacrificed at 4 weeks, then examined by subsequent micro-CT, and evaluated by histologic and biomechanical tests. The statistical analyses of one-way ANOVA or Kruskal-Wallis test were performed using with SPSS 23.0. A p < 0.05 was considered a significant difference.
RESULTS:AAM being intervened between tendon and bone (AIP group) or overlaid over tendon to bone junction (AOL group) in a rat model, promoted enthesis regeneration, increased new bone and cartilage generation, and improved collagen arrangement and biomechanical properties in comparison with suturing repair only (SRO group) (AOL vs. SRO, p < 0.001, p = 0.004, p = 0.003; AIP vs. SRO, p < 0.001, p < 0.001, p < 0.001). Compared with the AOL group, the AIP group had better results in micro-CT evaluation, histological score, and biomechanical testing (p = 0 0.039, p = 0.011, p = 0.003, respectively).
CONCLUSION:In the RC repair model, AAM enhanced regeneration of the tendon to bone junction. This regeneration was more effective when the AAM was intervened at the tendon to bone interface than overlaid above the tendon to bone junction.
