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- Dokumenttyp:
- Journal Article
- Autor(en):
- Gibbs, Christopher M; Winkler, Philipp W; Tisherman, Robert T; Chan, Calvin K; Diermeier, Theresa A; Debski, Richard E; Musahl, Volker
- Titel:
- Continuous-Loop Tape Technique Has Greater Stiffness and Less Elongation Compared With Tied-Suture Fixation of Full-Thickness All-Soft Tissue Quadriceps Tendon Autografts.
- Abstract:
- BACKGROUND: Many graft fixation techniques are utilized for full-thickness soft tissue quadriceps tendon autografts during anterior cruciate ligament reconstruction (ACLR). PURPOSE: To determine the tensile properties of all-soft tissue quadriceps tendon graft fixation using a tied-suture versus continuous-loop tape technique. It was hypothesized that the continuous-loop tape technique would have less cyclic elongation and greater ultimate load to failure and stiffness compared with a commonly used tied-suture technique. STUDY DESIGN: Controlled laboratory study. METHODS: Sixteen fresh-frozen human knee specimens were used to harvest a full-thickness all-soft tissue quadriceps tendon graft; half were secured using a Krackow suture technique with 2 braided sutures, and half were secured using a continuous-loop tape suspensory fixation button with a rip-stop stitch. Cyclic and permanent elongation, toe- and linear-region stiffness, and ultimate load were determined. Statistical analysis was performed at P <.05. RESULTS: The tied-suture fixation group demonstrated significantly higher permanent elongation (11.7 ± 3.6 vs 4.2 ± 1.0 mm, P < .001) and cyclic elongation (5.9 ± 1.3 vs 2.0 ± 0.4 mm, P < .001) compared with the continuous-loop tape fixation group. There was a significantly higher linear-region stiffness with continuous-loop tape fixation compared with tied-suture fixation (98.8 ± 12.7 vs 85.5 ± 7.5 N/mm, P = .022). No significant difference in ultimate load between groups (517.1 ± 149.2 vs 465.6 ± 64.6 N) was found. The mode of failure was tendon pull-through for the continuous-loop tape group and suture breakage in the tied-suture group (P < .001). CONCLUSION: Continuous-loop tape fixation is superior to tied-suture fixation in regard to elongation and stiffness for all-soft tissue quadriceps tendon grafts, but there was no significant difference in ultimate load. CLINICAL RELEVANCE: Continuous-loop tape fixation of all-soft tissue quadriceps tendon grafts for ACLR is a valid technique with superior tensile properties.
- Zeitschriftentitel:
- Orthop J Sports Med
- Jahr:
- 2021
- Band / Volume:
- 9
- Heft / Issue:
- 11
- Volltext / DOI:
- doi:10.1177/23259671211054108
- PubMed:
- http://view.ncbi.nlm.nih.gov/pubmed/34790834
- TUM Einrichtung:
- Fachgebiet Sportorthopädie (Prof. Imhoff)
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