Effect of bone quality on the forces generated by compression screws

Faran, K; Ichioka, N; Trzeciak, Marc A.; Han, Sangheon; Medige, John; Moy, Owen J.

doi:10.1016/s0021-9290(99)00076-7

Cited by 68 publications

(46 citation statements)

References 13 publications

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“…The initially generated compression forces in models can decrease over time due to foam viscoelasticity [6,9]. In our study, the compression force decreased for all three types of screws 30 min after insertion.…”

Section: Discussionmentioning

confidence: 49%

A central threadless shaft screw is better than a fully threaded variable pitch screw for unstable scaphoid nonunion: A biomechanical study

Koh

Kang

Kim

et al. 2015

Injury

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Section: Discussionmentioning

confidence: 49%

A central threadless shaft screw is better than a fully threaded variable pitch screw for unstable scaphoid nonunion: A biomechanical study

Koh

Kang

Kim

et al. 2015

Injury

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“…However, the acutrak screw has been shown to provide greater compression [18,19]. Because the acutrak screw is threaded along its entire length, a greater surface area is available for fixation between the bone and the screw.…”

Section: Discussionmentioning

confidence: 99%

Distal interphalangeal joint arthrodesis with a headless compression screw: morphometric and functional analyses

Song

Lee

Chung

et al. 2011

Arch Orthop Trauma Surg

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“…The polyurethane foam provided a product with a known density that removed variations in bone properties as a confounding factor. 23 Furthermore, standardizing the lesion in a cadaveric model would have been difficult.…”

Section: Discussionmentioning

confidence: 99%

Comparison of the stability of various internal fixators used in the treatment of osteochondritis dissecans—a mechanical model

Morelli

Poitras

Grimes

et al. 2007

Journal Orthopaedic Research

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The purpose of this study was to determine what characteristics of fixation devices used in the treatment of osteochondritis dissecans (OCD) contribute to improved stability to resist shear loading. An OCD model was designed using rigid polyurethane foam. Each specimen consisted of two components, an osteochondral fragment and a corresponding defect. A total of 40 specimens were prepared and assigned to one of four groups: control (no extrinsic stabilizer); two 2-mm-diameter Kirschner wires (K-wires), 40 mm in length; one threaded washer and a 28-mm screw; and one threaded washer and a 38 mm screw. Each specimen was mounted onto an Iosipescu shear test fixture and subjected to shear loads at a pseudo-static displacement rate of 0.075 mm/s. All groups demonstrated some stability; controls were significantly less stable than all other groups. The group with the threaded washer and 38-mm screw demonstrated the greatest stability ( p < 0.001), and no difference was noted between the K-wire and 28-mm screw groups. These results suggest that, in this OCD model, friction conferred some intrinsic stability to resist loads in shear. However, stability was improved with the use of long implants that compressed the fragments together. ß

show abstract

Effect of bone quality on the forces generated by compression screws

Cited by 68 publications

References 13 publications

A central threadless shaft screw is better than a fully threaded variable pitch screw for unstable scaphoid nonunion: A biomechanical study

A central threadless shaft screw is better than a fully threaded variable pitch screw for unstable scaphoid nonunion: A biomechanical study

Distal interphalangeal joint arthrodesis with a headless compression screw: morphometric and functional analyses

Comparison of the stability of various internal fixators used in the treatment of osteochondritis dissecans—a mechanical model

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