An Anatomic Investigation Into the Relationship Between Posterior Condylar Offset and Posterior Tibial Slope of One Thousand One Hundred Thirty-Eight Cadaveric Knees

Abstract Background Posterior condylar offset (PCO) and posterior tibial slope (PTS) have critical consequences in total knee arthroplasty, especially with regards to sagittal plane balancing. However, there has only been limited investigation into the functional consequences of each, and there have...

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Bibliographic Details
Published in:The Journal of arthroplasty 2017-05, Vol.32 (5), p.1659-1664.e1
Main Authors: Weinberg, Douglas S., MD, Gebhart, Jeremy J., MD, Wera, Glenn D., MD
Format: Article
Language:English
Subjects:
Adult
African Americans
African Continental Ancestry Group
Aged
Arthroplasty, Replacement, Knee
Biomechanical Phenomena
Cadaver
Female
Femur - surgery
Humans
implant design
Knee - anatomy & histology
Knee - surgery
knee anatomy
Knee Joint - surgery
Knee Prosthesis
Linear Models
Male
Middle Aged
Orthopedics
Osteoarthritis, Knee - surgery
posterior condylar offset
Regression Analysis
Reproducibility of Results
Tibia - surgery
tibial slope
total knee arthroplasty
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Summary:Abstract Background Posterior condylar offset (PCO) and posterior tibial slope (PTS) have critical consequences in total knee arthroplasty, especially with regards to sagittal plane balancing. However, there has only been limited investigation into the functional consequences of each, and there have only been anecdotal observations regarding any associations between PCO and PTS. Methods In a large osteological study of 1138 knees, standardized measurements of PCO and PTS were taken using previously described techniques on specimens of different age, race, and gender. Multiple linear regression was performed to determine the independent predictors of medial and lateral PTS. Results Mean standardized medial PCO was greater than lateral PCO (1.22 ± 0.16 vs 1.15 ± 0.19 mm, P  
ISSN:0883-5403
1532-8406
DOI:10.1016/j.arth.2016.12.022