Cementless Metaphyseal Sleeve Fixation in Revision Knee Arthroplasty: Our Experience with an Arabic Population at the Midterm

Table 2

The details of the RKA and the components implanted.

Parameter	N (%)
RKA	27 (100%)
Indications
Aseptic loosening	14 (51.9%)
PE wear	4 (14.8%)
Infection (second-stage)	3 (11.1%)
Instability	2 (7.4%)
Malalignment	2 (7.4%)
Femoral periprosthetic fracture/nonunion	2 (7.4%)
Metaphyseal sleeves
All	52 (100%)
Femoral	25 (48.1%)
Tibial	27 (51.9%)
Sleeve size (median)
Femoral	34 mm (31–46)
Tibial^b	29 mm (29–61)
75 mm cementless stem^c
All	52 (100%)
Diameter (median)	12 mm (10–16)
Component size (median)
Femoral^d	2 (1.5–3)
Tibial	1.5 (1.5–3)
PE insert	12.5 mm (10–22.5)
Type of constraint
TC3-RP	24 (88.9%)
S-ROM Noiles rotating hinge	1 (3.7%)
LPS-DFR	2 (7.4%)

^aFemoral sleeve sizes are 20 mm, 31 mm, 34 mm, 40 mm, and 46 mm. ^bTibial sleeve sizes are 29 mm, 37 mm, 45 mm, 53 mm, and 61 mm. ^cTwo cemented stems implanted with the 2 cases of LPS-DFR. ^dFemoral component used in 2 cases of LPS-DFR, and 1 case of S-ROM was the smallest size (xx-small). RKA = revision knee arthroplasty, PE = polyethylene, TC3-RB = total condylar III-rotating platform, S-ROM = Sivash-range of motion, and LPS-DFR = limb preservation system-distal femoral replacement.