Ng JWG, Bloch BV, James PJ. Sagittal radius of curvature, trochlea design and ultracongruent insert in total knee arthroplasty.
EFORT Open Rev 2019;
4:519-524. [PMID:
31538002 PMCID:
PMC6719604 DOI:
10.1302/2058-5241.4.180083]
[Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Multi radius (MR) total knee arthroplasty (TKA) has been associated with mid-flexion instability.
Single radius (SR) TKA may provide better anteroposterior stability through single flexion axis and biomechanical advantage for quadriceps function.
Medial pivot (MP) TKA and gradually reducing (GR) radius TKA produce better knee kinematics.
Clinical outcomes are equivalent for SR, MR and MP TKA.
Short-term studies have shown better clinical outcomes and kinematics for GR TKA.
Thinner and narrow anterior flange, deeper trochlea groove and more anatomical trochlea design reduces patellofemoral complications in TKA
Ultracongruent inserts provide comparable clinical outcomes to posterior-stabilized TKA and cruciate retaining TKA.
Cite this article: EFORT Open Rev 2019;4:519-524. DOI: 10.1302/2058-5241.4.180083
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