Academic Journal
The Lark-Loop Technique for Onlay Biceps Tenodesis: A Biomechanical, Histological, and Radiological Study in a Rabbit Model.
| Τίτλος: | The Lark-Loop Technique for Onlay Biceps Tenodesis: A Biomechanical, Histological, and Radiological Study in a Rabbit Model. |
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| Συγγραφείς: | Zhou M; Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.; Department of Orthopedics, The First Affiliated Hospital of Gannan Medical University, Ganzhou, China., Li X; Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China., Zhang J; Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China., Deng X; Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China., Wang Z; Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China., Hou J; Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China., Yan Y; Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.; Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China., Long Y; Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China., Yang R; Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China. |
| Πηγή: | The American journal of sports medicine [Am J Sports Med] 2026 Oct; Vol. 54 (12), pp. 3027-3036. Date of Electronic Publication: 2026 Sep 05. |
| Τύπος έκδοσης: | Journal Article |
| Γλώσσα: | English |
| Στοιχεία περιοδικού: | Publisher: Sage Publications Country of Publication: United States NLM ID: 7609541 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1552-3365 (Electronic) Linking ISSN: 03635465 NLM ISO Abbreviation: Am J Sports Med Subsets: MEDLINE |
| Imprint Name(s): | Publication: 2004- : Thousand Oaks, CA : Sage Publications Original Publication: Baltimore, Williams & Wilkins. |
| Ιατρικοί όροι (MeSH): | Tenodesis*/methods , Tendons*/surgery , Tendons*/diagnostic imaging , Tendons*/pathology , Tendon Injuries*/surgery , Tendon Injuries*/diagnostic imaging , Suture Techniques*, Animals ; Rabbits ; Biomechanical Phenomena ; Random Allocation |
| Περίληψη: | Background: Arthroscopic cortical surface tenodesis has been established as an effective technique for managing lesions of the long head of the biceps tendon (LHBT). However, traditional suture techniques frequently provide insufficient initial mechanical strength, which may contribute to tenodesis failure. To address this limitation, the Lark-Loop suture technique was developed. Purpose: To compare the biomechanical, histological, and radiological outcomes of Lasso-Loop, Lark-Loop, and Krackow suture techniques for cortical surface tenodesis of the LHBT in a rabbit model. Study Design: Controlled laboratory study. Methods: A total of 75 New Zealand White rabbits underwent bilateral proximal biceps tenodesis using a cortical surface fixation model. Animals were randomly assigned to 1 of 3 groups: (1) Lasso-Loop suture (control group; n = 25), (2) Lark-Loop suture (experimental group; n = 25), and (3) Krackow suture (positive control group; n = 25). At 4, 8, and 12 weeks postoperatively, 21 rabbits from each group (n = 63 total) were sacrificed for evaluation: 3 rabbits per group were used for magnetic resonance imaging and histological analysis, and 4 rabbits per group for micro-computed tomography and biomechanical testing. An additional 12 rabbits (4 per group) were used for initial biomechanical testing at week 0. One-way analysis of variance and Bonferroni post hoc correction were used to assess between-group differences. A P value <.05 was considered statistically significant. Results: Macroscopically, complete healing at the tenodesis site was observed in all groups at 12 weeks. The Lark-Loop group demonstrated significantly improved signal-to-noise quotient values, mechanical strength, new bone formation, and histological tendon-bone integration compared with the Lasso-Loop group at all time points. No significant differences were observed between the Lark-Loop and Krackow groups. Conclusion: This study demonstrated that all 3 suture techniques achieved effective tendon-bone healing in a rabbit model. The Lark-Loop technique provided enhanced biomechanical properties and histological healing compared with the Lasso-Loop technique, and comparable outcomes to the Krackow stitch. Clinical Relevance: The findings suggest that the Lark-Loop technique may serve as a viable arthroscopic alternative for LHBT tenodesis in clinical practice, potentially enhancing tendon-bone healing and reducing failure rates. |
| Competing Interests: | One or more of the authors has declared the following potential conflict of interest or source of funding: This work was supported by the National Natural Science Foundation of China (82572727), Sun Yat-Sen Pilot Scientific Research Fund (SYSQH-II-202503), Science and Technology Plan of Jiangxi Provincial Health Commission (202510455), and Guiding Science and Technology Plan Project of Ganzhou City (2025ZSFCE0283). |
| Contributed Indexing: | Keywords: Lark-Loop; long head of the biceps tendon; tendon-bone healing |
| Entry Date(s): | Date Created: 20260905 Date Completed: 20261001 Latest Revision: 20261001 |
| Update Code: | 20261001 |
| DOI: | 10.1177/03635465261469680 |
| PMID: | 42699998 |
| Βάση Δεδομένων: | MEDLINE |
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