Comparison of Clinical Results and Risk of Patellar Injury between Attune and PFC Sigma Knee Systems

Knee Surgery & Related Research
Sang Jun SongDae Kyung Bae

Abstract

The purposes of this study were to compare clinical results after total knee arthroplasty (TKA) using the Attune and PFC Sigma knee designs and to investigate whether the use of the Attune prosthesis increased the risk of patellar injury in Asian patients. Three hundred knees that underwent TKA using Attune (group A) were compared to 300 knees that underwent TKA using PFC Sigma (group B). The Knee Society Knee Score (KS) and Function Score (FS), and range of motion (ROM) were compared. The residual patellar thickness was compared to evaluate the risk of patellar injury. The postoperative KS and ROM of group A were better than those of group B (93.1 vs. 88.8, p<0.001 and 131.4° vs. 129.0°, p=0.008, respectively). The postoperative FS did not differ significantly between the two groups (80.9 vs. 78.7, p=0.427). The residual patella was thinner in group A (14.8 mm vs. 15.7 mm, p=0.003), which made up a higher proportion of the high-risk group for patellar fractures with a residual thickness of <12 mm (7.5% vs. 2.1%, p=0.003). TKA using the Attune prosthesis provided more favorable clinical results than TKA using PFC Sigma. However, the risk of injury in the residual patella was increased with use of the Attune prosthesis in Asian ...Continue Reading

References

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Citations

Sep 6, 2019·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Sang Jun SongCheol Hee Park
Jan 30, 2021·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Sang Jun SongCheol Hee Park
Dec 31, 2020·Journal of Clinical Medicine·Tu-Lan Vu-HanSebastian Hardt
Apr 11, 2021·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Man Soo KimYong In

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Methods Mentioned

BETA
X-ray

Software Mentioned

SPSS
Attune
PACS

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