↓ Skip to main content

Biomechanical comparison of single- and double-bundle medial patellofemoral ligament reconstruction

Overview of attention for article published in Journal of Orthopaedic Surgery and Research, February 2017
Altmetric Badge

Mentioned by

twitter
1 tweeter

Citations

dimensions_citation
16 Dimensions

Readers on

mendeley
24 Mendeley
You are seeing a free-to-access but limited selection of the activity Altmetric has collected about this research output. Click here to find out more.
Title
Biomechanical comparison of single- and double-bundle medial patellofemoral ligament reconstruction
Published in
Journal of Orthopaedic Surgery and Research, February 2017
DOI 10.1186/s13018-017-0530-2
Pubmed ID
Authors

Qing Wang, Wenhan Huang, Daozhang Cai, Huayang Huang

Abstract

Recurrent patellar dislocation is common clinically, primarily in adolescents. However, the biomechanical properties of single- and double-bundle medial patellofemoral ligament (MPFL) reconstruction remain poorly understood. Six fresh frozen adult cadaveric knee specimens were obtained for this study. Each specimen was fixed at 0° to test the force needed when the patella was laterally shifted 10 mm at a speed of 0.5 mm/s, and the test was repeated three times. This test was repeated when knee flexion was at 0°, 15°, 30°, 45°, 60°, and 90°. All six specimens were tested in four statuses, including MPFL intact, MPFL torn, single-bundle MPFL reconstruction, and double-bundle MPFL reconstruction. Similar force is required in these MPFL statuses at 0° of flexion, except for the MPFL torn group with a smaller force (45.5 ± 9.6 N, p < 0.05). The force required in the MPFL torn group reduced from 12.8 to 38.8% compared to other groups, at 0°, 15°, 30°, and 45° of flexion angles. At the flexion of 15°, the double-bundle reconstruction group required a statistically greater force (85.9 ± 10.1 N) compared to the single-bundle reconstruction group (74.0 ± 7.9 N). Interestingly, no statistical difference was found at flexions of 60° and 90° in these four groups. Both single-bundle and double-bundle MPFL reconstruction can restore the stability of the patella. The double-bundle reconstruction has an angular synergy effect that simulates the MPFL wide footprint in the patella, which enables it to have greater capacity to resist patellar dislocation before the patella entering the femoral trochlea at a smaller flexion angle.

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 24 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 24 100%

Demographic breakdown

Readers by professional status Count As %
Student > Master 4 17%
Researcher 4 17%
Student > Postgraduate 3 13%
Student > Ph. D. Student 3 13%
Librarian 2 8%
Other 4 17%
Unknown 4 17%
Readers by discipline Count As %
Medicine and Dentistry 11 46%
Nursing and Health Professions 3 13%
Economics, Econometrics and Finance 1 4%
Computer Science 1 4%
Sports and Recreations 1 4%
Other 2 8%
Unknown 5 21%

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 16 February 2017.
All research outputs
#6,915,456
of 9,076,354 outputs
Outputs from Journal of Orthopaedic Surgery and Research
#342
of 498 outputs
Outputs of similar age
#227,162
of 316,707 outputs
Outputs of similar age from Journal of Orthopaedic Surgery and Research
#10
of 38 outputs
Altmetric has tracked 9,076,354 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 498 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 316,707 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 17th percentile – i.e., 17% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 38 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.