Fixed-flexion radiography of the knee provides reproducible joint space width measurements in osteoarthritis.
Eur Radiol. 2004 Sep;14(9):1568-73. doi: 10.1007/s00330-004-2312-6. Epub 2004 May 19.
Eur Radiol. 2004.
PMID: 15150666
Clinical Trial.