Implant-free loop tenodesis compared to arthroscopic anchor tenodesis for the treatment of long head of biceps tendon disorders (LOOPTEN trial): study protocol for a multi-center non-inferiority randomized controlled trial.

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Abstract

[Indexed for MEDLINE] Conflict of interest statement: Declarations. Ethics approval and consent to participate: The trial will conform with the ethical principles of the Declaration of Helsinki. Ethics approval has been granted from the University of Regensburg Ethics Committee (number 24-3769-101, date 31 st May 2024) with an amendment (number 24-3769_1-101, date 12 th September 2024), including the informed consent form and patient information sheet. Written, informed consent will be obtained from all participants prior to study inclusion and baseline assessment. Consent for publication: All authors have read and approved the final manuscript. Consent for publication from any individual person or authorised surrogates is not applicable. Competing interests: The authors declare no competing interests. 19. Eur J Radiol. 1997 Nov;25(3):177-87. doi: 10.1016/s0720-048x(97)01172-8. Imaging the long head of biceps tendon--a pictorial essay emphasizing magnetic resonance. Nidecker A(1), Gückel C, von Hochstetter A. Author information: (1)Institut für MRI Rebgasse, Basel, Switzerland. Lesions of the long head of the bicepstendon (BT) are seen in association with tears of the rotator-cuff, particularly lesions of the subscapularis tendon and the rotator-interval. The frequency of positive MR-findings at the BT is approximately 25%. The pathologic alterations include complete medial luxation, subluxation and entrapment by the subscapularis tendon, tendinitis or tendovaginitis and lesions at the origin of the tendon at the superior labrum (superior labrum anterior to posterior (SLAP)--lesions). The imaging signs of BT pathology on MR include an abnormal course and position of the tendon, alterations in shape and changes in signal-intensity (SI), obliteration and thickening of the tendon-sheath. In long standing intra-articular BT rupture, neo-insertion of the tendon in the bicipital sulcus may ensue. The long BT needs to be visualized in transaxial, coronal oblique and sagittal oblique projections. Besides serving as stabilizer of the long head of biceps muscle, the BT is also an important stabilizer of the anterior joint capsule. DOI: 10.1016/s0720-048x(97)01172-8