Journal article
Biological and mechanical characteristics of the interface between a new swelling anchor and bone
Journal of orthopaedic research, v 18(3), pp 494-499
May 2000
PMID: 10937639
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
We recently evaluated the peak pullout loads for anchors made from our new copolymeric swellingtype material compared with anchors made of a nonswelling material. In vitro and in vivo peak pullout loads of these anchors were evaluated after different intervals of implantation in the lateral femoral condyles of New Zealand White rabbits. Scanning electron microscopy and energy dispersive x‐ray analyses were additionally performed on selected retrieved samples after pullout to examine the characteristics of bone attachment to the implant. The mean peak pullout load was greater for the swelling anchors than for the nonswelling anchors after 48 hours in vitro (46.0 ± 15.8 compared with 10.8 ± 9.1 N, p = 0.0541). After 2 weeks in vivo, it was significantly greater for the swelling anchors than for the nonswelling controls (177.7 ± 41.3 compared with 53.7 ± 17.5 N, p = 0.0024). The peak pullout load was also greater for the swelling anchors after 8 weeks in vivo; however, this difference was less pronounced than at 2 weeks (101.8 ± 35.0 compared with 58.9 ± 9.7 N, p = 0.0508). Furthermore, the swelling implants tended to induce bone deposition at the bone‐implant interface. Results from this investigation reveal that the new family of dynamic implants has potential for applications requiring fixation to cancellous or osteoporotic bone.
Metrics
Details
- Title
- Biological and mechanical characteristics of the interface between a new swelling anchor and bone
- Creators
- Gina M GualtieriSorin SieglerEric L HumeSurya R Kalidindi
- Publication Details
- Journal of orthopaedic research, v 18(3), pp 494-499
- Publisher
- Wiley Subscription Services, Inc., A Wiley Company; Hoboken
- Number of pages
- 6
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Mechanical Engineering and Mechanics
- Web of Science ID
- WOS:000088443700023
- Scopus ID
- 2-s2.0-0034190269
- Other Identifier
- 991014878107404721
UN Sustainable Development Goals (SDGs)
This publication has contributed to the advancement of the following goals:
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Orthopedics