Table 2.

Diagnostic criteria for OA in the hip joint

Number	Characteristics
1	Recurrent hip joint pain in the last month.
2	ESR ≤20 mm/h.
3	Osteophytosis and hyperplasia in the acetabular margin on radiograph.
4	A narrowed hip joint space on plain radiograph.

Note: Diagnosis of hip OA can be made if the following conditions are satisfied: 1 + 2 + 3 or 1 + 3 + 4.