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Table 2 Demographic Characteristics

From: Mid-term outcomes of arthroscopic-assisted Core decompression of Precollapse osteonecrosis of femoral head—minimum of 5 year follow-up

Mean Age, years ± SD (range)

36.4 ± 9.2 (16.9–47.6)

Gender, n (%)

 Male

7 (87.5%)

 Female

1 (12.5%)

BMI, BMI ± SD (range)

26.7 ± 3 (21—31)

Patients Treated Bilaterally, n (%)

3 (27.3%)

Laterality, n (%)

 Left

7 (63.6%)

 Right

4 (36.4%)

Mechanical Symptoms, n (%)

4 (36.4%)

Center-Edge Angle (CEA)

30.5° ± 3.4° (26°—36°)

Mean Follow-up, months ± SD (range)

84.7 ± 21.2 (64—118)

Pre-operative Symptom Duration, months ± SD (range)

14.5 ± 9.04 (4—36)

  1. BMI Body Mass Index in kg/m2. Mechanical symptoms include locking, catching, and buckling. Pre-operative symptom duration is the time interval from when the patient began experiencing hip pain to when they are underwent hip arthroscopy