1. Diagnosis and Clinical Presentation of Osteoarthritis
A. Abhishek, MD, MRCP, Michael Doherty, MD, FRCP 
Rheumatic Disease Clinics 
Volume 39, Issue 1, Pages (February 2013)
DOI: /j.rdc
Copyright © 2013 Elsevier Inc. Terms and Conditions

2. Fig. 1 Joints targeted by OA.
(Reproduced from Abhishek A, Doherty M. Disease diagnosis and clinical presentation. In: Henrotin Y, Hunter DJ, Kawaguchi H, editors. OARSI Online Primer. OARSI; 2011; with permission.)
Rheumatic Disease Clinics  , 45-66DOI: ( /j.rdc )
Copyright © 2013 Elsevier Inc. Terms and Conditions

3. Fig. 2
(A) Heberden nodes appearing as discrete posterolateral swelling over the DIPJs, and (B) coalescing to form a single dorsal bar.
Rheumatic Disease Clinics  , 45-66DOI: ( /j.rdc )
Copyright © 2013 Elsevier Inc. Terms and Conditions

4. Fig. 3 Heberden nodes and lateral deviation of IPJs in nodal OA.
Rheumatic Disease Clinics  , 45-66DOI: ( /j.rdc )
Copyright © 2013 Elsevier Inc. Terms and Conditions

5. Fig. 4
Thumb base OA: squaring of the thumb base, caused by osteophytosis and subluxation at the first carpometacarpal joint.
Rheumatic Disease Clinics  , 45-66DOI: ( /j.rdc )
Copyright © 2013 Elsevier Inc. Terms and Conditions

6. Fig. 5
Erosive OA: marked radial deviation and fixed flexion deformity in the left middle PIPJ, radial deviation with restriction in the index PIPJ, and bony swelling of both fingers. Note the absence of Heberden nodes.
(Reproduced from Abhishek A, Doherty M. Disease diagnosis and clinical presentation. In: Henrotin Y, Hunter DJ, Kawaguchi H, editors. OARSI Online Primer. OARSI; 2011; with permission.)
Rheumatic Disease Clinics  , 45-66DOI: ( /j.rdc )
Copyright © 2013 Elsevier Inc. Terms and Conditions

7. Fig. 6
Erosive OA: marked radial/ulnar instability. Such instability does not usually occur with the common hand OA.
(Reproduced from Abhishek A, Doherty M. Disease diagnosis and clinical presentation. In: Henrotin Y, Hunter DJ, Kawaguchi H, editors. OARSI Online Primer. OARSI; 2011; with permission.)
Rheumatic Disease Clinics  , 45-66DOI: ( /j.rdc )
Copyright © 2013 Elsevier Inc. Terms and Conditions

8. Fig. 7
Unilateral knee OA: swollen left knee with varus and fixed flexion deformities in a 63-year-old man with a history of knee trauma. On palpation there was marked crepitus, restricted flexion, bony swelling, and a small effusion. The cruciates were intact but there was minor varus/valgus instability on stress testing.
(Reproduced from Abhishek A, Doherty M. Disease diagnosis and clinical presentation. In: Henrotin Y, Hunter DJ, Kawaguchi H, editors. OARSI Online Primer. OARSI; 2011; with permission.)
Rheumatic Disease Clinics  , 45-66DOI: ( /j.rdc )
Copyright © 2013 Elsevier Inc. Terms and Conditions

9. Fig. 8
Patient with right hip OA showing fixed flexion and external rotation deformity.
(Reproduced from Abhishek A, Doherty M. Disease diagnosis and clinical presentation. In: Henrotin Y, Hunter DJ, Kawaguchi H, editors. OARSI Online Primer. OARSI; 2011; with permission.)
Rheumatic Disease Clinics  , 45-66DOI: ( /j.rdc )
Copyright © 2013 Elsevier Inc. Terms and Conditions

10. Fig. 9
Patient with hip OA, showing painful restriction in internal rotation in flexion: the tight-pack position for the hip and the first movement to be affected.
(Reproduced from Abhishek A, Doherty M. Disease diagnosis and clinical presentation. In: Henrotin Y, Hunter DJ, Kawaguchi H, editors. OARSI Online Primer. OARSI; 2011; with permission.)
Rheumatic Disease Clinics  , 45-66DOI: ( /j.rdc )
Copyright © 2013 Elsevier Inc. Terms and Conditions

11. Fig. 10
First MTPJ OA with hallux valgus and an inflamed overlying superficial bursa (“bunion”).
Rheumatic Disease Clinics  , 45-66DOI: ( /j.rdc )
Copyright © 2013 Elsevier Inc. Terms and Conditions

12. Fig. 11
Midfoot OA aggravated by pes planus. Note coexistent hallux valgus, suggesting first MTPJ OA.
Rheumatic Disease Clinics  , 45-66DOI: ( /j.rdc )
Copyright © 2013 Elsevier Inc. Terms and Conditions

13. Fig. 12
Knee effusions are usually not marked in OA. This person with OA plus CPPD had a large left knee effusion expanding the suprapatellar pouch, giving a positive balloon sign (fluctuance) on palpation.
Rheumatic Disease Clinics  , 45-66DOI: ( /j.rdc )
Copyright © 2013 Elsevier Inc. Terms and Conditions