Rheumatoid erosive arthropathy in macerated bone specimens • 213 



Figure 2. Macerated control tibia! table from amputee. Note minimal change (focal 

 collection of small holes in the lateral plateau (left); x 1 V: 



TaDLE 1. Summary of morphologic changes 

 observed on rheumatoid metacarpal heads 



Frequency (%) 



DlSShCIlNG MICROSCOPE (6-IOX) 



Articular surface 

 Dome 



Complete resorption 2/10 (20%) 



Partial resorption 8/10 (80%) 



Holes 2/10 (20%) 



Condyle 



Complete resorption 7/10 (70%) 



Partial resorption 3/10 (30%) 



Holes 3/10 (30%) 



Eburnation 2/10 (20%) 



Chondro-osseous junction 



Vallecular resorption 10/10 (100%) 



Para-articular bone 



Complete destruction 4/10 (40%) 



Holes 6/10 (60%) 



SCANNING ELECTRON MICROSCOPE (lOOX) 



Resorption lacunae at sites 10/10 (100%) 

 of calcified tissue destruction 



TAni P 2. Comparison between macerated tibial 

 plateaus of patients with rheumatoid arthritis (RA) 

 and control subjects 



Figure 3. Macerated rheumatoid tibial table; x l'/?. 



Zagreb Paleopathology Symp. 1988 



