Skip to main content

Table 3 Above-the-knee amputation (AKA) after prosthetic joint infection (PJI): demographic and clinical data, level of AKA and orthotics

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

Characteristic AKA after PJI
Number of patients, n 32
Demographic data
 Mean age (in years), mean (sd; Min – Max) 63.4 (14.4; 29–85)
 Male sex, n (%) 17 (53.1)
 Charlson Comorbidity Index, mean (sd) 5.5 (2.1)
 Death within 1st year, n (%) 7 (21.8)
 Lost to follow-up, n (%) 5 (15.6)
 Patients with min. Follow-up, n (%) 20 (62.5)
Disease causing pathogensa
 S. aureus, n (%) 11 (34.4)
 S. epidermidis, n (%) 9 (28.1)
Others, n (%) 12 (37.5)
Level of AKA
 Proximal, n (%) 5 (15.6)
 Midshaft, n (%) 11 (34.4)
 Distal, n (%) 16 (50.0)
Fitted with functional prosthesisb, n (%) 16 (80.0)
 Mechanic knee joint, n (%) 6 (30.0)
 Microprocessor knee joint, n (%) 10 (50.0)
  1. aDisease causing pathogen isolated in PJI leading to AKA
  2. bOut of 20 patients, which were available for FUP