Table 3

The prevalence of joint tenderness across different scores of MRI pathology

AbsentGrade 1Grade 2Grade 3
Osteophytes (n=676)13/77 (16.9)137/358 (38.3)84/147 (57.1)67/94 (71.3)
Joint space narrowing (n=676)64/212 (30.2)90/226 (39.8)111/192 (57.8)36/46 (78.3)
Erosions (n=673)99/323 (30.7)117/224 (52.2)61/97 (62.9)23/29 (79.3)
Bone attrition (n=675)191/522 (36.6)109/153 (71.2)NANA
Cysts (n=673)276/636 (43.4)24/37 (64.9)NANA
Malalignment (n=678)270/632 (42.7)32/46 (69.6)NANA
Synovitis (n=613)79/206 (38.3)106/266 (39.8)76/125 (60.8)12/16 (75.0)
Flexor tenosynovitis (n=589)202/484 (41.7)33/66 (50.0)19/39 (48.7)*
BMLs (n=678)244/589 (41.4)37/63 (58.7)6/8 (75.0)15/18 (83.3)
CL absence/discontinuity (n=674)95/274 (34.7)206/400 (51.5)NANA
BMLs at CL insertions (n=678)261/613 (42.6)41/65 (63.1)NANA
  • Data presented as numbers (%) of joints with tenderness.

  • * Grade 2 and 3 collapsed (only one joint with flexor tenosynovitis grade 3).

  • BMLs, bone marrow lesions; CL, collateral ligament; NA, not applicable (ie, the MRI features are scored as absent/present).