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Table 1 Twenty-eight out of 566 low contact stress (LCS) total knee arthroplasties (TKA) in 533 patients who suffered from moderate knee pain were matched to 28 patients not suffering from any pain in terms of age, sex and radiological follow-up

From: Radiolucent lines in low-contact-stress mobile-bearing total knee arthroplasty: a blinded and matched case control study

  patients with continual moderate knee pain, n = 28 matched patients without any knee pain, n = 28 P- value
age in years* 68.3, 49-89 68.8, 43-86 > 0.82
sex ratio m:f 1: 2.68 1: 2.72 > 0.62
radiological follow-up in months* 22.2, 18-24 22.4, 19-24 > 0.59
  1. Note that statistical analysis revealed no significant difference in demographic data between both groups.
  2. * numbers are reported in mean, range.