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Table 2 Patient demographic and baseline clinical characteristics associated with and without radiolucent line beneath the augmented metal block

From: Metal block augmentation for bone defects of the medial tibia during primary total knee arthroplasty

  TKA with radiolucent line (n= 10) TKA without radiolucent line (n= 23) P value
Age (years) 74 (67–85) 74 (58–88) 0.74a
Sex (F/M) 9/1 18/5 0.42b
Height (cm) 146 (136–153) 151 (135–172) 0.14a
Weight (kg) 52 (43–60) 56 (40–79) 0.37a
Body mass index (kg/m2) 23.7 (21.3–31.5) 23.7 (18.2–32.9) 0.67a
Preoperative diagnosis (OA/RA/other) 9/1/0 19/2/2 0.63b
Preoperative knee score (points) 45 (30–65) 50 (30–70) 0.14a
Postoperative knee score (points) 80 (65–90) 80 (65–95) 0.38a
Postoperative femorotibial angle (deg) 173 (170–176) 172 (167–176) 0.19a
  1. Results are expressed as median (range) unless stated otherwise. TKA, total knee arthroplasty; OA, osteoarthritis; RA, rheumatoid arthritis. aMann-Whitney U test; bχ2 test.