Table 2

Radiographic knee osteoarthritis (OA)

StudyScoring systemSurgicalNon-surgical
nGradesOA (%)nGradesOA (%)
Kessler et al 7 K&L6027/6/25/2/027 (45)4930/7/10/2/012 (24)
Neuman et al 27 OARSI17N/A6 (35)62N/A7 (11)
Streich et al 8 IKDC4014/11/3/1215 (38)4018/7/4/1115 (38)
Tsoukas et al 28 IKDC17N/A4 (24)15N/A5 (33)
van Yperen et al 29 K&L251/4/16/3/0/(1)20 (80)253/5/12/4/1/(0)17 (68)
  • K&L: 0/1/2/3/4/(total knee arthroplasty) and IKDC: A/B/C/D.

  • IKDC, International Knee Documentation Committee; K&L, Kellgren and Lawrence; N/A, not available; OARSI, Osteoarthritis Society Research International.