Table 2 The demographical and clinical characteristics in patients with primary GCTB around the knee by local recurrence.

From: Recurrence Rates and Risk Factors for Primary Giant Cell Tumors around the Knee: A Multicentre Retrospective Study in China

Categories

Recurrence

No-Recurrence

P

Total, n (%)

71 (23.4)

233 (76.6)

Age, years, mean (SD)

32.68 (12.04)

36.36 (13.65)

0.042

Gender, n (%)

  

0.294

 Men

41 (25.8)

118 (74.2)

 

 Women

30 (20.7)

115 (79.3)

 

Age group, n (%)

  

0.039

 <20 years

4 (14.3)

24 (85.7)

 

 20–39 years

51 (28.5)

128 (71.5)

 

 ≥40 years

16 (16.5)

81 (83.5)

 

Side, n (%)

  

0.378

 Left Knee

35 (25.7)

101 (74.3)

 

 Right Knee

36 (21.4)

132 (78.6)

 

Location, n (%)

  

0.609

 Distal femur

34 (21.8)

122 (78.2)

 

 Proximal tibia

35 (26.1)

99 (73.9)

 

 Proximal fibular

2 (18.2)

9 (81.8)

 

 Patella

0

3 (100.0)

 

Campanacci grade, n (%)

  

0.475

 I

8 (33.3)

16 (66.7)

 

 II

25 (23.1)

83 (76.9)

 

 III

38 (22.1)

134 (77.9)

 

Pathologic fracture, n (%)

  

0.217

 No

44 (26.0)

125 (74.0)

 

 Yes

27 (20.2)

108 (80.0)

 

Surgical approach, n (%)

  

<0.0001

 Intralesional curettage

31 (53.4)

27 (46.6)

 

 Curettage combined with resection

34 (27.6)

89 (72.4)

 

 En bloc marginal resection

6 (4.9)

117 (95.1)

 

PMMA, n (%)

  

0.516

 Yes

18 (40.9)

26 (59.1)

 

 No

45 (35.4)

82 (64.6)

 
  1. PMMA indicated polymethylmethacrylate.