Intra-Articular Giant Heterotopic Ossification following Total Knee Arthroplasty for Charcot Arthropathy
Figure 4
(a) Intra-articular giant ossified masses (12 × 4 and 8 × 4 cm in size) were firmly adherent to the posterior and medial capsules and required special care to extirpate. (b) Hematoxylin-eosin staining of the ossified mass showing typical structures of mature spongiosa.