Table 1

Demographics and functional assessment of patients with periacetabular osteolysis on plain films

Measurement index

Mean score

Range

Harris Hip Scale

76

55–89

WOMAC (total)

569

187–1410

WOMAC (pain)

85

2–221

WOMAC (stiffness)

59

5–136

WOMAC (ADLs)

425

135–1068

SF-36-physical composite

55

20-85

SF-36-mental composite

76

33–96

There were 20 patients in this study (14 male and 6 female) with a mean age of 63.8 years (range 52–76). Nineteen patients were Caucasian, one African-American. The measurements were obtained at a mean of 10.8 years post-operation (range 5–14). For WOMAC (Western Ontario and McMaster University Osteoarthritis Index), a higher score indicates greater pain, stiffness, or difficulty. For the Harris Hip Scale, higher scores indicate better results. For SF-36 (short form 36 questionnaire) higher scores indicate better health. ADL, activities of daily living.

Looney et al. Arthritis Res 2002 4:59   doi:10.1186/ar384