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Table 3 Results of the two groups at the 12-month follow-up

From: Comparison of the outcomes of cannulated screws vs. modified tension band wiring fixation techniques in the management of mildly displaced patellar fractures

  CRCF (n = 26) ORTF (n = 26) P value
Fracture healing time (months) 2.65 ± 0.61 2.81 ± 0.8 0.440
Postoperative interfragmentary gap   0.934
   0 mm 19 (73.1 %) 20 (77.0 %)  
    ≤ 2 mm 5 (19.2 %) 4 (15.4 %)  
    ≥ 3 mm 2 (7.7 %) 2 (7.7 %)  
Implant removal 2 11  
Pain (VAS) 0.5 ± 1.1 1.1 ± 1.9 0.160
Extension (°) 1.2 ± 1.7 1.9 ± 1.9 0.133
Flexion (°) 140.4 ± 10.3 136.9 ± 11.0 0.246
ROM (°) 139.2 ± 11.8 135.0 ± 12.7 0.219
Lysholm score 93.2 ± 5.3 89.8 ± 6.2 0.039
  1. CRCF closed reduction and percutaneous cannulated screw fixation, ORTF open reduction and modified tension band fixation, VAS visual analog scale, ROM range of motion
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