Related Experiment Video
Updated: Feb 12, 2026

Experimental Manipulation of Body Size to Estimate Morphological Scaling Relationships in Drosophila
Published on: October 1, 2011
Total Knee Replacement Sizing: Shoe Size Is a Better Predictor for Implant Size than Body Height
Sarah Trainor1, Jamie Collins1, Hannah Mulvey1
1Brigham and Women's Hospital Boston, MA, USA.
Background:
Various sizes of implants need to be available during surgery. The purpose of this paper is to compare body height and shoe size with implant sizes in patients who underwent total knee replacement surgery to see which biomarker is a better predictor for preoperative planning to determine implant size.
Methods:
A total of 100 knees, belonging to 50 females and 50 males, were observed. Participants' body height and shoe size were collected and correlated to implant sizes of a current, frequently used, standard total knee replacement (TKR) implant. The femoral anteroposterior and mediolateral width and the tibial anteroposterior and mediolateral width were correlated with height and shoe size.
Results:
The correlation between shoe size and the four knee implant dimensions, femoral AP, ML, and tibial AP and ML were higher than the correlations between height and the same four dimensions.
Conclusion:
The results indicated that shoe size is a better predictor of component dimensions than is body height.Level of evidence: III.
Related Concept Videos
Cell Size
Surface Area
Cells can take in nutrients and water via diffusion through the plasma membrane itself or through specific channels in the membrane. The area of the membrane surrounding...
Brick Sizes
Modular bricks are the most common type and are sized to include the mortar joint, which is essential for...
Genome Size and the Evolution of New Genes
Genome Size and the Evolution of New Genes
Maximum Size of Aggregate
Sample Size Calculation
The sample size for the given experiment or sampling effort is fundamental to any study design. Sample size decides the number of...

