Biomechanical properties of a novel locking compression plate to stabilize oblique tibial osteotomies in buffaloes. Issue 2 (15th December 2020)

• Record Type: Journal Article
• Authors: Ahmad, Raja A.; Aithal, Hari Prasad; Amarpal, ; Kinjavdekar, Prakash; Gope, Prakash Chandra; Madhu, Doddadasarahalli N.
• Is Part Of: Veterinary surgery. Volume 50:Issue 2(2021)
• Page Start: 444
• Page End: 454
• Publication Date: 2020-12-15
• Subjects: Veterinary surgery -- Periodicals; Veterinary Medicine -- Periodicals; Surgery -- Periodicals; Societies, Medical -- Periodicals; 636.0897
• DOI: 10.1111/vsu.13554
• Languages: English
• ISSNs: 0161-3499

Abstract

Abstract: Objective: Quantitation of mechanical properties of a novel locking compression plate (LCP) for bovine tibia. Study design: Prospective in vitro study. Sample population: Adult Murrah buffalo (250‐350 kg) tibiae. Methods: Forty tibiae were randomly assigned to five treatment groups (n = 8/group): intact bone and bone constructs with a standard nonlocking plate, single LCP, double LCP, and novel LCP. During implant application, a mid‐diaphyseal, oblique osteotomy was performed in all constructs, which were subsequently tested in axial compression (n = 4 each) or three‐point craniocaudal bending (n = 4 each). Novel LCP alone (n = 4) was tested only in bending. Stiffness, yield load, ultimate failure load, and bending moment were determined from the load deformation curves and compared among different treatment groups ( P < .05). Results: Under compression, yield load of the novel LCP (24.07 ± 3.45 kN) was greater than that of the nonlocking plate (11.10 ± 2.46 kN) and the single LCP (18.01 ± 2.07 kN) but less than that of the double LCP (30.61 ± 1.95 kN), and ultimate failure load of the novel LCP (25.85 ± 4.32 kN) was greater than that of the nonlocking plate (13.18 ± 2.91 kN) but similar to that of the single LCP (21.17 ± 2.33 kN) and the double LCP (32.40 ± 1.46 kN). Bending moment, yield load, and ultimate failure load of the novel LCP were 565.37 ± 79.30 Nm, 7.90 ± 1.14 kN, 9.83 ± 1.38 kN, respectively, which were greater than those of the nonlocking plate and the single LCP but comparable to those of the double LCP. Conclusion: The novel LCP developed for bovine tibia was mechanically superior to the standard nonlocking plate or the single LCP and comparable to the double LCP. Clinical significance: The novel LCP may provide rigid fixation of tibial diaphyseal fractures in buffaloes and cattle weighing 250 to 350 kg.