TY - JOUR
T1 - The P.F.C. sigma RP-F TKA designed for improved performance
T2 - A matched-pair study
AU - Gupta, Sanjay K.
AU - Ranawat, Amar S.
AU - Shah, Vineet
AU - Zikria, Bashir A.
AU - Zikria, Joseph F.
AU - Ranawat, Chitranjan S.
PY - 2006/9/1
Y1 - 2006/9/1
N2 - The press fit condylar P.F.C. Sigma RP-F (rotating-platform, high flexion) knee is designed to provide a range of motion (ROM) of 155° without compromising wear, polyethylene contact stresses, patellofemoral tracking, or stability. The first 50 TKA surgeries using the Sigma RP-F knee performed at the author's institution were matched to 50 rotating-platform knees for age, sex, body mass index, preoperative diagnosis, duration of follow-up, and preoperative ROM to determine the effect of design on postoperative ROM. The mean increase in active ROM in the Sigma RP-F group was 17°, compared with 6° in the rotating-platform group (P=.0011). The mean increase in active ROM in patients who had less than 120° of preoperative motion was 27° in the Sigma RP-F group, compared with 16° in the rotating-platform group (P=.006). With the new P.F.C. Sigma RP-F design, greater ROM can be achieved independent of preoperative ROM.
AB - The press fit condylar P.F.C. Sigma RP-F (rotating-platform, high flexion) knee is designed to provide a range of motion (ROM) of 155° without compromising wear, polyethylene contact stresses, patellofemoral tracking, or stability. The first 50 TKA surgeries using the Sigma RP-F knee performed at the author's institution were matched to 50 rotating-platform knees for age, sex, body mass index, preoperative diagnosis, duration of follow-up, and preoperative ROM to determine the effect of design on postoperative ROM. The mean increase in active ROM in the Sigma RP-F group was 17°, compared with 6° in the rotating-platform group (P=.0011). The mean increase in active ROM in patients who had less than 120° of preoperative motion was 27° in the Sigma RP-F group, compared with 16° in the rotating-platform group (P=.006). With the new P.F.C. Sigma RP-F design, greater ROM can be achieved independent of preoperative ROM.
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M3 - Article
C2 - 17002149
AN - SCOPUS:33749151610
VL - 29
SP - S49-S52
JO - Orthopedics
JF - Orthopedics
SN - 0147-7447
IS - 9 SUPLL.
ER -