"grade 1: islands of bone within the soft tissues around the hip"
"grade 4: ankylosis of the hip joint"
"grade A: absence of heterotopic ossification (maybe ≥1 island of bone of"
"grade B: presence of ≥1 island of bone of at least 1 cm in length and bone spurs from the pelvis or femur; 1 cm distance between opposing bone surfaces"
"grade C: bone spurs arising from the pelvis or femur with"
Expected headings
"Classification"
"grade B: presence of ≥1 island of bone of at least 1 cm in length and bone spurs from the pelvis or femur; 1 cm distance between opposing bone surfaces"
"There is no specific role for MRI once the diagnosis of heterotopic ossification has already been made. Instead, MRI is usually used in the assessment of a soft tissue mass. It has the added advantage of evaluating for other possible causes such as neoplasms (i.e. sarcoma) or underlying osteomyelitis."