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Table 2 Baseline data

From: Conversion from a failed proximal femoral nail anti-rotation to a cemented or uncemented total hip arthroplasty device: a retrospective review of 198 hips with previous intertrochanteric femur fractures

Variable UTA (n = 98) CTA (n = 100) p-value
Gender, M/F 45/53 48/52 0.769
Age(y) 66.84 ± 4.72 66.73 ± 5.12 0.162
BMI (kg/m2) 26.11 ± 5.82 26.78 ± 6.26 0.241
BMD −3.67 ± 0.62 −3.66 ± 0.73 0.317
Side, R/L 48/50 51/49 0.776
Symptomatic/asymptomatic patients prior to revision 56/42 60/40 0.683
Mechanism of injury, No. %    0.609
 Traffic 33 (33.7) 36 (36.0)  
 Falling 53 (54.1) 56 (56.0)  
 Direct impact 12 (12.2) 8 (8.0)  
IFFs, AO/OTA, No. %    0.629
 31A1 16 (16.3) 19 (19.0)  
 31A2 57 (58.2) 61 (61.0)  
 31A3 25 (25.5) 20 (20.0)  
Comorbidities, No. %    0.747
 Hypertension 36 (36.7) 33 (33.0)  
 Diabetes mellitus 23 (23.5) 21 (21.0)  
 Cerebrovascular accident 10 (10.2) 13 (13.0)  
Reasons for conversion, n%    0.954
 Instability 23 (23.5) 25 (25.0)  
 Mechanical failure 22 (22.4) 23 (23.0)  
 Instability and mechanical failure 53 (54.1) 52 (52.0)  
Interval from PFNA to revision (y)    0.841
 < 1 15 (15.3) 17 (17.0)  
 1–2 53 (54.1) 56 (56.0)  
 > 2 30 (30.6) 27 (27.0)  
Follow-up (mos) 65.15 ± 4.40 65.26 ± 4.21 0.103
  1. PFNA Proximal femoral nail anti-rotations, UTA Uncemented total hip arthroplasty, CTA Cemented total hip arthroplasty, HHS Harris hip score, ASA American Society of Anesthesiologists, BMI Body mass index, BMD Bone mineral density