Table 1.
Patients with above-the-knee amputation for infected TKA
| Case number | Gender | Age at AKA | Number of previous surgeries | ASA | Microbiology | Died | SF-12 PCS/MCS | ADLS | Fitted for prosthesis? | Ambulation status last followup | Housing |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | M | 52 | 9 | 3 | MSSE | Y | Unlimited without aids | Independent | |||
| 2 | M | 59 | 1 | 4 | MRSA | Y (2 months) | |||||
| 3 | F | 61 | 3 | 4 | MRSA; Escherichia coli | 28.1/48.9 | 67.1 | Y | Housebound with walker | House with assistance | |
| 4 | M | 56 | 9 | 3 | MRSA | Y | Housebound without aids | House with assistance | |||
| 5 | F | 75 | 5 | 3 | MRSA | 24.7/35.4 | 24.3 | N (patient choice) | Nonambulatory | House with assistance | |
| 6 | F | 77 | 5 | 3 | E. coli | Y (33 months) | Y | < 5 blocks with walker | |||
| 7 | F | 66 | 7 | 3 | Klebsiella; Pseudomonas | 21.0/36.1 | 45.7 | N | House with assistance | ||
| 8 | F | 75 | 6 | 3 | MRSA; Enterobacter | 31.7/43.4 | 44.2 | N | Nursing home | ||
| 9 | F | 77 | 5 | 4 | MRSE; Proteus; Serratia | Y (4 months) | |||||
| 10 | M | 26 | 6 | 2 | E. coli; Enterococcus; MRSE | 62.9 | Y | < 5 blocks with crutches | House with assistance | ||
| 11 | M | 82 | 8 | 3 | No growth | 37.5/25.9 | 55.7 | Y | Transfers only with walker | House with assistance | |
| 12 | F | 81 | 4 | 4 | Pseudomonas | Y (3 months) | |||||
| 13 | F | 43 | 4 | 2 | No growth | 25.7/55.8 | 32.9 | Y | Transfers only with walker | Independent | |
| 14 | M | 56 | 9 | 2 | MRSE | 52.8/27.3 | 48.6 | Y | Nonambulatory | Assisted living facility | |
| 15 | F | 67 | 10 | 2 | MRSE | Y (48 months) | |||||
| 16 | M | 30 | 5 | 2 | No growth | 31.8/62.9 | 57.1 | Y | < 5 blocks without aids | Independent | |
| 17 | M | 44 | 4 | 2 | MSSA | ||||||
| 18 | F | 79 | 2 | 3 | MSSE | Y (48 months) | |||||
| 19 | F | 31 | 5 | 2 | S. pneumoniae; MSSA | ||||||
| 20 | M | 75 | 2 | 3 | MRSE | 37.7/56.7 | 75.7 | Y | < 5 blocks with walker | House with assistance | |
| 21 | F | 42 | 5 | 2 | MSSA; MSSE | Y | Unlimited without aids | Unknown | |||
| 22 | M | 48 | 7 | 2 | MRSA | Y (81 months) | |||||
| 23 | M | 75 | 5 | 2 | S. lugdunensis | Y (54 months) | |||||
| 24 | M | 74 | 9 | 3 | MRSA | Y (44 months) | |||||
| 25 | F | 74 | 8 | 2 | MRSA | 25.0/53.3 | 45.7 | Y | Unlimited with walker | House with assistance | |
| 26 | F | 48 | 3 | 3 | Serratia; Candida | N | Nonambulatory | Unknown | |||
| 27 | F | 65 | 4 | 3 | MRSA; Enterococcus | Y (51 months) | N | Transfers only | Unknown | ||
| 28 | M | 57 | 2 | 3 | MRSE | ||||||
| 29 | F | 85 | 2 | 3 | MSSE | Y (0.6 months) | |||||
| 30 | M | 69 | 5 | VREF; Proteus; E. coli | Y (29 months) | ||||||
| 31 | F | 42 | 2 | No growth | Y (32 months) | Y | Unknown | Unknown | |||
| 32 | F | 67 | 3 | No growth | |||||||
| 33 | M | 49 | 6 | Streptococcus | 55.6/51.1 | 78.6 | Y | Unlimited with cane | Independent | ||
| 34 | M | 88 | 8 | MRSA | Y (9 months) | ||||||
| 35 | F | 77 | 1 | No growth | Y (38 months) |
AKA = above-the-knee amputation; ASA = American Society of Anesthesiologists; PCS/MCS = physical component score/mental component score; ADLS = activities of daily living score; M = male; F = female; MSSE = methicillin-susceptible Staphylococcus epidermidis; MRSA = methicillin-resistant Staphylococcus aureus; MRSE = methicillin-resistant S. epidermidis; MSSA = methicillin-susceptible S. aureus; VREF = vancomycin-resistant Enterococcus faecalis; Y = yes; N = no.