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Influence of hooks and a lag screw on internal fixation plates for lateral malleolar fracture: a biomechanical and ergonomic study

Overview of attention for article published in Journal of Orthopaedic Surgery and Research, February 2017
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Title
Influence of hooks and a lag screw on internal fixation plates for lateral malleolar fracture: a biomechanical and ergonomic study
Published in
Journal of Orthopaedic Surgery and Research, February 2017
DOI 10.1186/s13018-017-0537-8
Pubmed ID
Authors

Rina Sakai, Masataka Uchino, Terumasa Yoneo, Yasuaki Ohtaki, Hiroaki Minehara, Terumasa Matsuura, Tsutomu Gomi, Masanobu Ujihira

Abstract

For internal fixation of AO classification Type B lateral malleolar fracture, insertion of lag screws into the fracture plane and fixation with a one-third tubular plate as a neutralization plate are the standard treatment procedures. The one-third tubular plate is processed to a hook shape and hung on the distal end of the fibula. In this study, to compare the function of the hook and lag screws of a one-third tubular plate and LCP for osteosynthesis of lateral malleolar fracture, mechanical indices of internal fixation were compared among the one-third tubular plates with lag screws with and without the hook and a locking compression plate. As mechanical tests, a compression test was performed in which compression in the bone axis direction produced by supporting the body weight was simulated, and a torsion test was performed in which external rotation of the bone axis caused by plantar flexion of the ankle joint was simulated. Muscle strength during walking and the force and torque acting on the ankle and knee joints were determined using inverse dynamic analysis. Finite element analysis was performed to analyze the function of hooks and lag screws. The joint reaction force determined by inverse dynamic analysis was adopted as the loading condition of finite element analysis. A stiffness equivalent to that of healthy bone could be achieved by all three internal fixations. It was clarified that the presence of the hook does not make a difference in stiffness. Displacement of the one-third tubular plate was small regardless of the presence or absence of the hook compared with those of locking compression plates. The presence of the hook did not make any difference in stiffness, suggesting that active preparation of the hook is unnecessary. We also clarified that lag screws inhibit displacement.

Twitter Demographics

The data shown below were collected from the profile of 1 tweeter who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 37 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 37 100%

Demographic breakdown

Readers by professional status Count As %
Other 7 19%
Student > Master 6 16%
Student > Ph. D. Student 3 8%
Student > Bachelor 3 8%
Student > Postgraduate 3 8%
Other 5 14%
Unknown 10 27%
Readers by discipline Count As %
Medicine and Dentistry 12 32%
Engineering 5 14%
Sports and Recreations 3 8%
Nursing and Health Professions 2 5%
Materials Science 2 5%
Other 1 3%
Unknown 12 32%

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 23 February 2017.
All research outputs
#6,938,717
of 9,105,319 outputs
Outputs from Journal of Orthopaedic Surgery and Research
#346
of 501 outputs
Outputs of similar age
#187,919
of 255,347 outputs
Outputs of similar age from Journal of Orthopaedic Surgery and Research
#11
of 41 outputs
Altmetric has tracked 9,105,319 research outputs across all sources so far. This one is in the 13th percentile – i.e., 13% of other outputs scored the same or lower than it.
So far Altmetric has tracked 501 research outputs from this source. They receive a mean Attention Score of 2.1. This one is in the 10th percentile – i.e., 10% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 255,347 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 15th percentile – i.e., 15% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 41 others from the same source and published within six weeks on either side of this one. This one is in the 1st percentile – i.e., 1% of its contemporaries scored the same or lower than it.