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Table 1 Clinical characteristics of patients in the three groups

From: Clinical observation and finite element analysis of cannulated screw internal fixation in the treatment of femoral neck fracture based on different reduction quality

Items Groups P value
Anatomical reduction group (n = 82) Negative buttress group (n = 62) Positive buttress group (n = 78)
Age (years) 42.6 ± 4.33 42.1 ± 4.47 42.3 ± 4.17 0.784
Gender (%)
 Male 48 (58.5) 36 (58.1) 48 (61.5) 0.896
 Female 34 (41.5) 26 (41.9) 30 (38.5)
Mechanism of injury (%)
 High-energy trauma 50 (61.0) 39 (62.9) 49 (62.8) 0.962
 Low-energy trauma 32 (39.0) 23 (37.1) 29 (37.2)
Side of fracture
 Left 42 (51.2) 30 (48.4) 38 (48.7) 0.929
 Right 40 (48.8) 32 (51.6) 40 (51.3)
Time to surgery (days) 1.80 ± 0.49 1.79 ± 0.50 1.84 ± 0.48 0.849
BMI 23.9 ± 2.23 23.6 ± 2.45 23.7 ± 2.53 0.779
Garden classification
 I 4 (4.9) 2 (3.2) 3 (3.8) 0.980
 II 13 (15.9) 11 (17.7) 14 (17.9)
 III 35 (42.7) 30 (48.3) 33 (42.3)
 IV 30 (36.5) 19 (25.8) 28 (36.0)
Pauwels classification
 I 36 (43.9) 29 (46.8) 34 (43.6) 0.618
 II 24 (29.3) 22 (35.5) 22 (28.2)
 III 22 (26.8) 11 (17.7) 21 (26.9)
Follow-up duration (years) 4.12 ± 0.69 4.11 ± 0.65 4.13 ± 0.58 0.999