TY - JOUR
T1 - Changes in posterior condylar offset after total knee arthroplasty cannot be determined by radiographic measurements alone
AU - Clarke, Henry D.
PY - 2012/6
Y1 - 2012/6
N2 - Restoration of femoral posterior condylar offset (PCO) may contribute to maximum flexion after total knee arthroplasty. Accurate radiographic measurement of postoperative PCO is possible, as the prosthesis margins can be easily identified; however, preoperative measurement of PCO may be inaccurate, as the remaining cartilage thickness of the posterior condyles is not included. This error may contribute to the controversy surrounding the importance of PCO. In this institutional review board-approved study, the cartilage thickness of posterior condylar specimens resected during total knee arthroplasty was measured. Mean cartilage thicknesses of the posterior condyles were 1.7 mm (range, 0-4 mm) medially and 2.0 mm (range, 0-5 mm) laterally. As the cartilage thickness is variable, future studies of PCO must adjust the preoperative radiographic measurements by the cartilage thickness measured intraoperatively.
AB - Restoration of femoral posterior condylar offset (PCO) may contribute to maximum flexion after total knee arthroplasty. Accurate radiographic measurement of postoperative PCO is possible, as the prosthesis margins can be easily identified; however, preoperative measurement of PCO may be inaccurate, as the remaining cartilage thickness of the posterior condyles is not included. This error may contribute to the controversy surrounding the importance of PCO. In this institutional review board-approved study, the cartilage thickness of posterior condylar specimens resected during total knee arthroplasty was measured. Mean cartilage thicknesses of the posterior condyles were 1.7 mm (range, 0-4 mm) medially and 2.0 mm (range, 0-5 mm) laterally. As the cartilage thickness is variable, future studies of PCO must adjust the preoperative radiographic measurements by the cartilage thickness measured intraoperatively.
KW - Posterior condylar offset
KW - Radiographic measurements
KW - Total knee arthroplasty
UR - http://www.scopus.com/inward/record.url?scp=84861201984&partnerID=8YFLogxK
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U2 - 10.1016/j.arth.2011.12.026
DO - 10.1016/j.arth.2011.12.026
M3 - Article
C2 - 22342129
AN - SCOPUS:84861201984
SN - 0883-5403
VL - 27
SP - 1155
EP - 1158
JO - Journal of Arthroplasty
JF - Journal of Arthroplasty
IS - 6
ER -