Abstract
Introduction
Despite its clinical relevance, particularly in septic knee surgery, the volume of the human knee joint has not been established to date. Therefore, the objective of this study was to determine knee joint volume and whether or not it is dependent on sex or body height.
Methods
Sixty-one consecutive patients (joints) who were due to undergo endoprosthetic joint replacement were enrolled in this prospective study. During the operation, the joint volume was determined by injecting saline solution until a pressure of 200 mmHg was achieved in the joint.
Results
The average volume of all knee joints was 131 ± 53 (40–290) ml. The volume was not found to be dependent on sex, but it was dependent on the patients’ height (R = 0.312, p = 0.014). This enabled an estimation of the joint volume according to V = 1.6 height − 135.
Conclusions
The considerable inter-individual variance of the knee joint volume would suggest that it should be determined or at least estimated according to body height if the joint volume has consequences for the diagnostics or therapy of knee disorders.
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Matziolis, G., Roehner, E., Windisch, C. et al. The volume of the human knee joint. Arch Orthop Trauma Surg 135, 1401–1403 (2015). https://doi.org/10.1007/s00402-015-2272-0
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DOI: https://doi.org/10.1007/s00402-015-2272-0