Principles and Application of Traction and Coaptation Splints

Knecht, Charles D.

doi:10.1016/s0091-0279(75)50029-8

Cited by 2 publications

(1 citation statement)

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“…Different materials and methods have been clinically applied. Rigid coaptation is needed in treatment of certain fractures to hold fracture alignment and allow minimal amount of motion at the fracture site during healing (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12). Rigid coaptation methods include full cylinder casts made of plaster of Paris or synthetic cast materials that rigidly immobilize at least two joints.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Evaluation of Soft Cast (Scotchcast, 3M) and Conventional Rigid and Semi-rigid Coaptation Methods

Rytz¹,

Aron²,

Foutz³

et al. 1996

Vet Comp Orthop Traumatol

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SummaryA clinically relevant model was created to mechanically evaluate different rigid and semi-rigid coaptation methods. Modulus of elasticity, yield stress, resilience and stiffness was measured to describe material strength and structure stiffness. Rigid Vetcast Plus, 3 M (VCP), new semi-rigid Softcast Scotchcast, 3 M (SC), conventional semi-rigid fibreglass slab reinforced modified Rober t Jone s (SMRJ ) bandages, and modified Robert Jones (MRJ ) bandages were tested with different thicknesses or configurations. Rigid (VCP) was the strongest and stiffest coaptation method. The reason for this was a strong bond between fibres and resin and between layers. New semi-rigid (SC) was the strongest of the semi-rigid coaptation methods followed by (SMRJ ) bandages and (MRJ ) bandages. With semi-rigid (SC) imperfections and voids in bond allowed some shear movement between fibres and resin and between layers giving cylindrical structures some resilience. Stiffness of semi-rigid (SMRJ ) was influenced by the position of the slab relative to the bending plane. Compressed cotton with semi-rigid (MRJ ) had very limited resistance to a bending force.New semi-rigid Softcast Scotch-cat, 3M (SC) was mechanically evaluated in an in vitro external coaptation model and compared to rigid Vetcast Plus, 3M (VCP), semi-rigid fibreglass slab reinforced modified Robert Jones (SMRJ) bandages, and modified Robert Jones (MRJ) bandages. Vetcast Plus (VCP) was overall the strongest, Scotchcast (SC) was the strongest of the semi-rigid coaptation methods.

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