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Improved healing of ligament to bone with point fixation in rabbits
Linköping University, Faculty of Health Sciences. Linköping University, Department of Neuroscience and Locomotion, Orthopaedics and Sports Medicine.
Linköping University, Faculty of Health Sciences. Linköping University, Department of Neuroscience and Locomotion, Orthopaedics and Sports Medicine. Östergötlands Läns Landsting, Orthopaedic Centre, Department of Orthopaedics Linköping.
2006 (English)In: Acta Orthopaedica, ISSN 1745-3674, E-ISSN 1745-3682, Vol. 77, no 6, 967-972 p.Article in journal (Refereed) Published
Abstract [en]

Background: Secure healing of soft tissue to bone is a prerequisite for many orthopedic operations. This healing can be achieved either by pressing the tissue against the bone (press fixation) or by suturing the soft tissue to the bone (point fixation). Experiments and findings: We tested the hypothesis that point fixation of soft tissue to bone results in better mechanical properties than press fixation. 10 skeletally mature New Zealand White rabbits were operated on bilaterally at the knees. The medial collateral ligaments were fixated to the bone just above the original insertion on the tibia. Two types of plates were used for this purpose, one with flat undersurface (left knee) and the other one with a pegged undersurface (right knee). The pegged plate was thought to mimic fixation achieved with suture anchors. After 4 weeks, mechanical testing revealed an almost doubled force at failure, stiffness and energy uptake in the knees operated with the pegged plates. Interpretation: Suture anchors or devices with a pegged undersurface are better for soft tissue fixation to bone than devices with a flat surface, such as screws with washers or staples. Copyright© Taylor & Francis 2006.

Place, publisher, year, edition, pages
2006. Vol. 77, no 6, 967-972 p.
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-37797DOI: 10.1080/17453670610013303Local ID: 38687OAI: oai:DiVA.org:liu-37797DiVA: diva2:258646
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2017-12-13

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Fahlgren, AnnaAspenberg, Per

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Faculty of Health SciencesOrthopaedics and Sports MedicineDepartment of Orthopaedics Linköping
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