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Table 1 Modular knee-arthrodesis (MKA) after prosthetic joint infection (PJI): demographic and clinical data, implant survival rate

From: Knee arthrodesis versus above-the-knee amputation after septic failure of revision total knee arthroplasty: comparison of functional outcome and complication rates

Characteristic MKA after PJI
Number of patients, n 81
Demographic data
 Mean age (in years), mean (sd; Min - Max) 68.6 (11.2; 29–85)
 Male sex, n (%) 43 (53.1)
 Charlson Comorbidity Index, mean (sd) 4.8 (2.0)
 Death within 1st year, n (%) 9 (11.1)
 Lost to follow-up, n (%) 17 (21.0)
 Patients with min. Follow-up, n (%) 55 (67.9)
Disease causing pathogensa
S. aureus, n (%) 25 (30.9)
S. epidermidis, n (%) 31 (38.3)
 Others2, n (%) 25 (30.9)
Leg length discrepancy after MKA in cm, mean (sd) 1.8 (1.4)
Survival rate (SR) for MKA after PJI
 One – year SR 85.6%
 Five – years SR 71.1%
 Ten – years SR 60.9%
  1. aDisease causing pathogen isolated in PJI leading MKA