| Dokumentenart: | Artikel | ||||
|---|---|---|---|---|---|
| Titel eines Journals oder einer Zeitschrift: | BMC Musculoskeletal Disorders | ||||
| Verlag: | BMC | ||||
| Ort der Veröffentlichung: | LONDON | ||||
| Band: | 20 | ||||
| Nummer des Zeitschriftenheftes oder des Kapitels: | 1 | ||||
| Datum: | 2019 | ||||
| Institutionen: | Medizin > Lehrstuhl für Unfallchirurgie | ||||
| Identifikationsnummer: |
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| Stichwörter / Keywords: | CONTACT; TENSION; TENDON; TEARS; Rotator cuff; Cuff repair; Single-row; Biomechanics | ||||
| Dewey-Dezimal-Klassifikation: | 600 Technik, Medizin, angewandte Wissenschaften > 610 Medizin | ||||
| Status: | Veröffentlicht | ||||
| Begutachtet: | Ja, diese Version wurde begutachtet | ||||
| An der Universität Regensburg entstanden: | Ja | ||||
| Dokumenten-ID: | 48861 |
Web of ScienceZusammenfassung
BackgroundThe objective of this biomechanical study is to compare two variations of single-row knotless techniques (Knotless repair and Rip-stop Knotless repair) against a single-row double-loaded anchor (DL) repair, focused on evaluating contact pressure and contact area amongst three different single-row techniques for rotator cuff repairs.MethodsA total of 24 fresh frozen human shoulders were ...
Zusammenfassung
BackgroundThe objective of this biomechanical study is to compare two variations of single-row knotless techniques (Knotless repair and Rip-stop Knotless repair) against a single-row double-loaded anchor (DL) repair, focused on evaluating contact pressure and contact area amongst three different single-row techniques for rotator cuff repairs.MethodsA total of 24 fresh frozen human shoulders were tested. Specimens were randomly assigned into one of the three single-row (SR) repair groups: A Knotted single-row double-loaded anchor (DL) repair, a Knotless (K) repair, or a Knotless Rip-Stop (KRS) repair. The footprint was measured after complete detachment of the supraspinatus tendon from the greater tuberosity, introducing pressure sensors between bony footprint and detached rotator cuff, and finally reconstructing it. All specimens were mounted onto a servohydraulic test system to analyze contact variables at 0 degrees and 30 degrees of abduction with 0N, 30N and 50N of tension.ResultsGroups did not differ significantly in their footprint sizes: DL group 359.7558.37mm(2), K group 386.5102.13mm(2), KRS group 415.87 +/- 93.80mm(2) (p=0.84); nor in bone mineral density: DL group 0.25 +/- 0.14g/cm(2), K group 0.32 +/- 0.19g/cm(2), KRS group 0.32 +/- 0.13g/cm(2), (p=0.75) or average age. The highest mean pressurized contact area measured for the K repair was 248.1 +/- 50.9mm(2), which equals a reconstruction of 67.1 +/- 19.3% at 0 degrees abduction and a 50N supraspinatus load. This reconstructed area was significantly greater compared with the DL repair 152.8 +/- 73.1mm(2), reconstructing 42.0 +/- 18.5% on average when under the same conditions (p=0.04). The mean contact pressure did not significantly differ amongst groups (p=1.0): DL group 30.8 +/- 17.4psi, K group 30.9 +/- 17.4psi and KRS group 30.0 +/- 10.9psi. Neither the 30 degrees abduction angle nor the supraspinatus load had a significant influence on the contact pressure in our study.Conclusion Both single-row knotless techniques resulted in significantly higher footprint reconstruction, providing larger contact area and a more uniform pressure distribution when compared with the single-row Knotted techniques. The mean contact pressure did not differ among groups significantly. These knotless techniques may be an alternative if the surgeon decides to perform a single-row rotator cuff repair.Level of evidence Basic Science Study, Biomechanics.
Metadaten zuletzt geändert: 03 Sep 2021 10:03
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