{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,28]],"date-time":"2026-09-28T18:45:56Z","timestamp":1790621156845,"version":"4.1.0"},"reference-count":20,"publisher":"Springer Science and Business Media LLC","issue":"4","license":[{"start":{"date-parts":[[2025,2,17]],"date-time":"2025-02-17T00:00:00Z","timestamp":1739750400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2025,2,17]],"date-time":"2025-02-17T00:00:00Z","timestamp":1739750400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"funder":[{"DOI":"10.13039\/501100006447","name":"University of Zurich","doi-asserted-by":"crossref","id":[{"id":"10.13039\/501100006447","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Eur Spine J"],"published-print":{"date-parts":[[2025,4]]},"abstract":"<jats:title>Abstract<\/jats:title>\n          <jats:sec>\n            <jats:title>Purpose<\/jats:title>\n            <jats:p>Semi-rigid spinal stabilization has been explored as an alternative to spinal fusion, and early experience with spinal segment augementation (\u201cvertebropexy\u201d) is promising. The main technical challenge is to maintain the integrity of the spinous processes during loading. This study aimed to compare different looping materials and techniques with respect to their performance in maintaining spinous process integrity.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Methods<\/jats:title>\n            <jats:p>One hundred and five thoracolumbar vertebrae were tested with various looping materials and techniques; the \u201cTunnel-only\u201d double-loop technique was tested with a synthetic tape (FiberTape<jats:sup>\u00ae<\/jats:sup>), bovine tendon, and a hybrid tape option. Additionally, the performance of the synthetic tape was tested for other augmentation techniques such as the \u201cFigure-of-eight\u201d looping technique, a double-loop combination of tunneling and cortical wrapping, and a double-loop with \u201cCortical wrapping only\u201d. Biomechanical testing was performed by uniaxial caudo-cranial distraction to failure.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Results<\/jats:title>\n            <jats:p>The loads required to cause spinous process failure were lowest with the synthetic tape, followed by tendon and hybrid constructs by tendency (419\u00a0N vs. 487\u00a0N vs. 519\u00a0N) in the \u201cTunnel-only\u201d double-loop technique. The comparison showed that the \u201cTunnel\u2009+\u2009cortical wrapping\u201d technique required significantly higher forces to induce failure compared to other techniques, particularly the \u201cTunnel only\u201d method (<jats:italic>p<\/jats:italic>\u2009&lt;\u20090.001).<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Conclusion<\/jats:title>\n            <jats:p>The choice of the looping technique and material in lumbar interspinous vertebropexy significantly affects the resistance of the spinous process to load. Techniques that incorporate cortical bone and use tendinous material demonstrate superior resistance to higher forces, compared to methods that involve passing synthetic tape through a hole solely within trabecular bone. Additionally, the role of trabecular bone density in the spinous process is relatively minor when cortical bone is utilized as an abutment for the loop. <\/jats:p>\n          <\/jats:sec>","DOI":"10.1007\/s00586-025-08724-0","type":"journal-article","created":{"date-parts":[[2025,2,17]],"date-time":"2025-02-17T07:47:56Z","timestamp":1739778476000},"page":"1480-1487","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Spinous process resistance to different materials and looping techniques for interspinous lumbar vertebropexy"],"prefix":"10.1007","volume":"34","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3676-008X","authenticated-orcid":false,"given":"Jonas","family":"Widmer","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anna-Katharina","family":"Calek","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marie-Rosa","family":"Fasser","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mauro","family":"Suter","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Brian","family":"Allen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mazda","family":"Farshad","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2025,2,17]]},"reference":[{"key":"8724_CR1","doi-asserted-by":"publisher","first-page":"752","DOI":"10.21037\/jss-20-492","volume":"6","author":"M-J Reisener","year":"2020","unstructured":"Reisener M-J, Pumberger M, Shue J, Girardi FP, Hughes AP (2020) Trends in lumbar spinal fusion\u2014a literature review. 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(Basec No. KEK-ZH-Nr. 2024\u2009\u2212\u200900382).","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval"}},{"value":"The last author (MF) reports being a Consultant for Medacta, Arthrex, 25Segements, Zurimed and President of the Board of MovingSpine (Balgrist University Startup) and shareholder of Balgrist University Startups (Moving Spine AG and X23D). JW is a part-time employee and a shareholder of Moving Spine AG. MRF is a part-time employee of Moving Spine AG. All the other authors report no conflicts of interest.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}]}}