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Table 1 Patients’ demographic and surgical data

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

Patients number Cyst length (cm) Epiphyseal length (cm) Cyst size* Cyst location Prior fracture Times of treatment Transform latent after one treatment Duration of follow-up (month) Curative effect Complication
1 5.8 3 1.9 Proximal humerus No 1 No 25 Failure Fracture
2 8.3 5.7 1.5 Distal femur No 1 Yes 40 Healed None
3 8.2 5.2 1.6 Proximal tibia No 1 Yes 51 Healed with defects None
4 6.3 3.2 2.0 Proximal femur No 1 Yes 33 Healed None
5 7.5 5.3 1.4 Proximal tibia No 1 Yes 76 Healed None
6 7.08 4.8 1.5 Distal femur No 2 No 65 Healed None
7 5.9 3.9 1.5 Proximal femur No 1 Yes 45 Healed None
8 5.6 2.6 2.2 Proximal humerus No 2 No 27 Healed None
9 2.6 1.8 1.4 Proximal femur Yes 1 Yes 30 Healed None
10 3.8 2.4 1.6 Proximal humerus Yes 1 Yes 26 Healed with defects None
11 4.5 2.1 2.1 Proximal humerus No 2 No 31 Healed with defects None
12 4.6 2.7 1.7 Proximal tibia No 1 Yes 26 Healed None
13 4.1 3.4 1.2 Proximal humerus No 1 Yes 78 Healed None
14 5.5 2.7 2.0 Proximal femur No 1 Yes 34 Healed None
15 4.8 2 2.4 Proximal humerus No 1 Yes 52 Healed None
16 9.9 3.8 2.6 Proximal humerus No 1 Yes 80 Healed with defects None
17 4.7 3 1.6 Proximal femur No 1 Yes 29 Healed None
18 4.2 3.2 1.3 Proximal humerus Yes 1 Yes 26 Healed None
19 5.3 3.2 1.7 Proximal humerus Yes 2 No 82 Healed with defects None
20 9.9 3.8 2.6 Proximal humerus Yes 1 Yes 58 Healed None
21 5.2 3.9 1.3 Proximal humerus No 2 Yes 36 Persistent cyst None
22 4.9 3.1 1.6 Proximal humerus Yes 1 Yes 37 Healed None
23 4.7 3.3 1.4 Proximal femur Yes 1 Yes 76 Healed None
24 6.2 1.8 3.4 Proximal tibia No 1 No 49 Healed None
25 5.4 3.3 1.6 Proximal humerus Yes 2 Yes 24 Persistent cyst None
26 4.8 3.2 1.5 Proximal humerus No 1 Yes 36 Healed None
  1. *Cyst size was defined as the ratio of the cyst length to the adjacent epiphysis length