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Table 3 Demographic data for patients with AUBC

From: Active unicameral bone cysts: control firstly, cure secondly

Gender*

 M

17 (65%)

 F

9 (35%)

Age*

9.4 ± 3.0

Cyst length (cm)*

5.8 ± 1.8 (P = 0.032)

Epiphyseal length (cm)*

3.3 ± 1.0

The size of the cyst*

1.8 ± 0.5 (P = 0.044)

Cyst location

 Proximal humerus

14 (54%)

 Distal femur

2 (8%)

 Proximal tibia

4 (15%)

 Proximal femur

6 (23%)

Prior fracture*

8 (31%)

Duration of follow-up (months)

45.1 ± 19.7

Curative effect

 Healed

18 (70%)

 Healed with defects

5 (19%)

 Persistent cyst

2(8%)

Treatment times**

 One

20 (77%)

 Two

6(23%)

  1. *Gender, age, location and size of cyst, and pathological fracture had no correlation with the curative effect
  2. **Treatment times had a significant correlation with the length of the cyst (P = 0.032) and the size of the cyst (P = 0.044)