Unstable Vancouver B1 periprosthetic femoral fracture fixation: A biomechanical comparison between a novel C-shaped memory alloy implant and cerclage wiringopen access
- Authors
- Oh, Seog-Hyun; Suh, Yu-Sung; Eghan-Acquah, Emmanuel; Yurevich, Kollerov Mikhail; Won, Sung-Hun; Baek, Min Jung; Lee, Sung-Jae; Choi, Sung-Woo
- Issue Date
- Mar-2024
- Publisher
- SAGE PUBLICATIONS LTD
- Keywords
- Femur; Fracture-Periprosthetic; Arthroplasty; Biomechanical Phenomena; Cable; Cerclage wire
- Citation
- JOURNAL OF INTERNATIONAL MEDICAL RESEARCH, v.52, no.3
- Journal Title
- JOURNAL OF INTERNATIONAL MEDICAL RESEARCH
- Volume
- 52
- Number
- 3
- URI
- https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/26424
- DOI
- 10.1177/03000605241240946
- ISSN
- 0300-0605
1473-2300
- Abstract
- Background To compare the biomechanical stability of a novel, C-shaped nickel-titanium shape memory alloy (SMA) implant (C-clip) with traditional cerclage wiring in the fixation of a Vancouver B1 (VB1) periprosthetic femoral fracture (PFF).Methods In total, 18 synthetic femoral fracture models were constructed to obtain unstable VB1 fracture with an oblique fracture line 8 cm below the lesser trochanter. For each model, the distal portion was repaired using a 10-hole locking plate and four distal bi-cortical screws. The proximal portion was repaired using either three, threaded cerclage wirings or three, novel C-shaped implants. Specimens underwent biomechanical testing using axial compression, torsional and four-point bending tests. Each test was performed on three specimens.Results The C-clip was statistically significantly stronger (i.e., stiffer) than cerclage wiring in the three biomechanical tests. For axial compression, medians (ranges) were 39 (39-41) and 35 (35-35) N/mm, for the C-clip and cerclage wiring, respectively. For torsion, medians (ranges) were, 0.44 (0.44-0.45) and 0.30 (0.30-0.33) N/mm for the C-clip and cerclage wiring, respectively. For the four-point bending test, medians (ranges) were 39 (39-41) and 28 (28-31) N/mm; for the C-clip and cerclage wiring, respectively.Conclusion Results from this small study show that the novel, C-shaped SMA appears to be biomechanically superior to traditional cerclage wiring in terms of stiffness, axial compression, torsion and four-point bending, and may be a valuable alternative in the repair of VB1 PFF. Further research is necessary to support these results.
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Collections - College of Medicine > Department of Orthopedic Surgery > 1. Journal Articles
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