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Adult Reconstruction
intermediate
X-Type

Unicompartmental Knee Arthroplasty

Knee Replacement

A 62-year-old active male presents with medial knee pain for 2 years, worsening with activity. He has varus deformity of 8 degrees that corrects passively on stress radiographs. MRI shows isolated medial compartment arthritis with intact ACL and lateral compartment. He desires return to golf and hiking. Regarding unicompartmental knee arthroplasty (UKA):

Mark each as TRUE or FALSE

A

Traditional indications include isolated single-compartment osteoarthritis with intact ACL, passivel...

B

Contraindications include inflammatory arthritis (RA, crystalline disease), ACL deficiency, fixed va...

C

UKA always produces worse outcomes than total knee arthroplasty; bearing type (mobile vs fixed) has ...

D

Advantages of UKA over TKA include bone preservation, preservation of both cruciate ligaments allowi...

E

Surgical technique requires appropriate component positioning with slight undercorrection of deformi...

Answer the questions to see explanations

Click T (True) or F (False) for each option