{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,13]],"date-time":"2026-05-13T06:14:36Z","timestamp":1778652876495,"version":"3.51.4"},"reference-count":36,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2026,5,13]],"date-time":"2026-05-13T00:00:00Z","timestamp":1778630400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Bioeng. Biotechnol."],"abstract":"<jats:sec>\n                    <jats:title>Introduction<\/jats:title>\n                    <jats:p>To evaluate the biomechanical and clinical outcomes of superior capsular reconstruction (SCR) with autologous tendon (AT) for the irreparable rotator cuff tears (IRCTs).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Ten fresh-frozen human upper limb specimens were used to create three models (intact, rotator cuff-deficient, and reconstruction). Superior translation of the humeral head and subacromial pressure were measured at different abduction angles under standardized loading. Mechanical comparability between tendons was also evaluated by measuring cross-sectional area and basic tensile properties. For clinical evaluation, a prospective case series of nine patients with IRCTs tears who underwent SCR with AT was conducted. Shoulder joint range of motion, American Shoulder and Elbow Surgeons (ASES), and Constant-Murley (CM) were recorded before surgery, at 6\u00a0months and 12\u00a0months after surgery. Magnetic resonance imaging (MRI) was performed preoperatively, the day after surgery, and at 6 months.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>The reconstruction reduced superior translation of the humeral head and subacromial pressure compared with the rotator cuff-deficient condition. No significant differences were observed in basic mechanical properties between the tested tendons. ASES scores improved significantly at both 6 and 12\u00a0months after surgery, whereas Constant score did not remain statistically significant in the 12-month pairwise comparison after adjustment for multiple comparisons. No significant differences were observed in shoulder joint range of motion. MRI showed 6\/9 (67%) patients had reduced thickness of the implanted peroneus longus tendon (PLT) graft at 6 months postoperatively, while the PLT grafts of the other patients remained intact.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>SCR with AT may help restore superior glenohumeral stability under controlled biomechanical conditions and shows promising preliminary clinical results in patients with IRCTs.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.3389\/fbioe.2026.1801212","type":"journal-article","created":{"date-parts":[[2026,5,13]],"date-time":"2026-05-13T05:55:19Z","timestamp":1778651719000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["Biomechanical and clinical evaluations of superior capsular reconstruction using autologous tendon for irreparable rotator cuff tear"],"prefix":"10.3389","volume":"14","author":[{"given":"Xiping","family":"Jiang","sequence":"first","affiliation":[{"name":"Department of Orthopedics, Shanghai Sixth People\u2019s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine","place":["Shanghai, China"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiaofeng","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Orthopedics, Shanghai Sixth People\u2019s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine","place":["Shanghai, China"]},{"name":"Department of Orthopedics, Jinshan District Central Hospital affiliated to Shanghai University of Medicine & Health Sciences","place":["Shanghai, China"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Pan","family":"Liu","sequence":"additional","affiliation":[{"name":"Department of Orthopedics, Sichuan Provincial People\u2019s Hospital, School of Medicine, University of Electronic Science and Technology of China","place":["Chengdu, China"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Qi","family":"Chen","sequence":"additional","affiliation":[{"name":"Department of Orthopedics, Jinshan District Central Hospital affiliated to Shanghai University of Medicine & Health Sciences","place":["Shanghai, China"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chenrui","family":"Yuan","sequence":"additional","affiliation":[{"name":"Department of Orthopedics, Shanghai Sixth People\u2019s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine","place":["Shanghai, China"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chenkai","family":"Li","sequence":"additional","affiliation":[{"name":"Department of Orthopedics, Shanghai Sixth People\u2019s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine","place":["Shanghai, 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