Heterotopic Ossification: A Challenging Complication of Total Hip Arthroplasty: Risk Factors, Diagnosis, Prophylaxis, and Treatment

Figure 2

The presence of HO Graded in Brooker Classification as I (a), II (b), III (c), and IV (d) on a follow-up after THR (from the Clinic of Orthopaedics and Paediatric Orthopaedics Medical University of Lodz records).

(a)

(b)

(c)

(d)