The Emerging Utility of Composite Bone Models in Biomechanical Studies of the Hand and Upper Extremity

Reed, Jeffrey D.; Stanbury, Spencer J.; Menorca, Ron M.G.; Elfar, John C.

doi:10.1016/j.jhsa.2012.12.005

Cited by 19 publications

(8 citation statements)

References 12 publications

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“…In a recent article, Jeffrey et al [ 23 ] evaluated high-fidelity composite bone models used in the biomechanics study; Synbone brand models was well represented in the hand and upper extremity biomechanics research. In our biomechanical experiments, the divergent screw group showed the highest axial compression stiffness of the three groups; in contrast, the axial compression stiffness of the convergent group was the lowest of the three groups, which was consistent with our expected results.…”

Section: Discussionmentioning

confidence: 99%

Effect of different orientations of screw fixation for radial head fractures: a biomechanical comparison

Shi

Pan

et al. 2017

J Orthop Surg Res

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BackgroundScrew fixation is a common method used for the treatment of Mason type II radial head fractures. The purpose of our study was to evaluate the mechanical properties of three different screw orientations used for fixation of Mason type II radial head fractures.MethodsWe sawed 24 medium-frequency fourth-generation Synbone radial bones to simulate unstable radial head fractures, which we then fixed with three different screw orientations. Implants were tested under axial load by the tension-torsion composite test system. If the implant-radial constructs did not fail after the axial load test, an axial failure load was added to the remaining constructs.ResultsThe stiffness of the divergent group was the highest of the three orientations, and this group had statistically significant difference from the other two groups (p < 0.05). However, there was no statistically significant difference between the convergence group and the parallel group (p > 0.05). When the displacement reached 2 mm, the load of the divergent screw was still larger than the other two groups (p < 0.05).ConclusionsThe divergent screw orientation was the most stable and had the greatest control of Mason type II fractures of these three groups. Therefore, it can be better applied in clinical settings.

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Section: Discussionmentioning

confidence: 99%

Effect of different orientations of screw fixation for radial head fractures: a biomechanical comparison

Shi

Pan

et al. 2017

J Orthop Surg Res

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“…Sawbones phantoms are typically used in validation studies since their geometry, mechanical properties, and radiopacity are comparable to bone. [17][18][19][20][21] Spherical tantalum beads were inserted into the surrounding phantom at the approach angles available during surgery, replicating bead distribution that would be expected clinically. Radiographs were acquired using a computed radiography digital system (Capsula XL; FUJIFILM, Tokyo, Japan) in a dedicated RSA suite.…”

Section: Methodsmentioning

confidence: 99%

Additively manufactured implant components for imaging validation studies

Kleut

Yuan

Athwal

et al. 2018

Proc Inst Mech Eng H

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Radiographic imaging is the current standard for evaluating postoperative joint replacements. Prior to application, such imaging methods need to be validated to determine the lower limits of performance under ideal conditions, using either a phantom or cadaver setup. Conventionally manufactured orthopedic implants for use in such studies are not always accessible and may be cost-prohibitive to purchase. We propose the use of additively manufactured implants as a cheaper, more accessible alternative for use in radiographic imaging validation studies. Bias and repeatability were compared between conventionally manufactured and additively manufactured reverse total shoulder implant sets under a standard model-based radiostereometric analysis phantom study environment. Measurements were compared using the humeral stem or glenosphere model relative to reference bone beads, and the humeral stem relative to the glenosphere model to measure implant relative displacement. Compared to the conventionally manufactured implants, the additively manufactured implants had less bias along the internal-external rotation axis (p < 0.001), but greater bias along the abduction-adduction and flexion-extension rotation axes (p = 0.005, 0.011). Additively manufactured implants had greater repeatability along the internal-external rotation axis (p < 0.001), but worse repeatability along the medial-lateral translation axis (p = 0.001) and the abduction-adduction rotation axis (p < 0.001). Differences were on the orders of 0.01 mm and 0.5°. For the purpose of validating two-dimensional-three-dimensional radiographic imaging techniques of orthopedic implants, additively manufactured implants can be used in place of conventionally manufactured implants, assuming they are fabricated to the manufacturer's specifications. Observed differences were within the errors of the measurement technique and not clinically meaningful.

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“…Composite bones have been a mainstay of orthopedic simulation due to their ability to mimic bone architecture and physical properties (Figure 4 & 5A) [79]. These bones can be purchased from multiple vendors and significantly more cost effective than cadaveric bones for teaching and understanding the biomechanics of real bones [80]. However, there are limitations to these replicas, as they do not completely emulate the viscoelastic properties, nor the internal architecture of real bone [81].…”

Section: Synthetic Bonesmentioning

confidence: 99%

Manual Dexterity Training for Orthopaedic Residents - Non-Patient based Methodologies

Kamineni

2020

OPROJ

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Current orthopaedic trainees are given less time to achieve competency in increasingly complex and diverse surgical procedures compared to their predecessors [1,2]. The multitude of different surgical techniques that have emerged require volumes of supervised repetition to achieve competence. It can be considered that surgical competence for orthopaedic residents cannot be achieved solely by caseload alone in the time it takes to complete residency [3,4]. Multiple factors, detrimental to the goal of rigorous training can be identified, including resident work hour restrictions, increasing administrative duties and documentation, inconsistent case volumes, and other service related duties [5]. These challenges have been compounded with changes in healthcare policies that center on Operating Room (OR) efficiency, reaching quality assurance targets, patient safety, and reducing patient waiting times. Such issues have forced a dramatic deviation from the traditional paradigm of the teacher-apprentice model of professional training, previously followed for the last hundred years [6]. These evolving challenges have necessitated alternative strategies of skill acquisition, notably physical and virtual simulation, psychomotor training, cognitive training, and competency-based evaluation.

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The Emerging Utility of Composite Bone Models in Biomechanical Studies of the Hand and Upper Extremity

Cited by 19 publications

References 12 publications

Effect of different orientations of screw fixation for radial head fractures: a biomechanical comparison

Effect of different orientations of screw fixation for radial head fractures: a biomechanical comparison

Additively manufactured implant components for imaging validation studies

Manual Dexterity Training for Orthopaedic Residents - Non-Patient based Methodologies

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