Orthonotes
Orthonotes
by the.bonestories
v3.0 Fusion
v3.0 Fusion
arthroplasty topic hub

Unicompartmental vs Total Knee Arthroplasty — Indications & Outcomes

UKA: isolated compartment OA, intact ACL/collaterals, correctible deformity; faster recovery, more natural kinematics. TKA: multicompartment disease, inflammatory arthritis, significant deformity/instability; durable outcomes. UKA risks: OA progression, bearing dislocation (mobile), higher revision if selection poor. TKA risks: PF complications, stiffness; less normal kinematics. Choice individualized by age, activity, alignment, expectations.

Overview

Topic summary

View wiki
UKA: isolated compartment OA, intact ACL/collaterals, correctible deformity; faster recovery, more natural kinematics. TKA: multicompartment disease, inflammatory arthritis, significant deformity/instability; durable outcomes. UKA risks: OA progression, bearing dislocation (mobile), higher revision if selection poor. TKA risks: PF complications, stiffness; less normal kinematics. Choice individualized by age, activity, alignment, expectations.
MCQs

High-yield practice questions

Start topic quiz
Question 1

Which of the following is a key indication for unicompartmental knee arthroplasty (UKA)?

Question 2

What is a major risk associated with unicompartmental knee arthroplasty (UKA)?

Question 3

Which of the following statements is true regarding total knee arthroplasty (TKA)?

Question 4

What is the primary advantage of UKA over TKA in terms of recovery?

Question 5

According to the Kozinn and Scott criteria, which of the following is NOT a criterion for UKA selection?

Question 6

Which outcome measure tends to show superior results for UKA compared to TKA in the first 1-5 years postoperatively?

Question 7

What is one of the potential complications specifically associated with TKA?

Question 8

In which situation would unicompartmental knee arthroplasty (UKA) be contraindicated?

Question 9

How does the 90-day mortality rate for TKA compare to that of UKA?

Question 10

Which of the following statements regarding the Oxford criteria for UKA is true?