Partial Knee Arthroplasty (PKA)

Why remove healthy ligaments when you don’t need to?

~47%

of patients have AMOA^3,4

healthy ligaments intact⁵

75%

PKA patients very satisfied⁶

Partial Knee Arthroplasty from Zimmer Biomet

Get help identifying patients today!

Hear the specifics of what to look for in patients who might have AMOA and download our checklist x-ray guide to help you start identifying patients today

Download now!

Benefits of using the Oxford^® Cementless Partial Knee
to address AMOA in patients

Important Safety Information:

The Oxford^® Cementless Partial Knee System is indicated for use in unilateral knee procedures with osteoarthritis or avascular necrosis limited to the medial compartment of the knee. It is intended to be implanted without the application of bone cement for patients whose clinical condition would benefit from a shorter surgical time compared to the cemented implant. The Oxford Cementless Partial Knee Is not indicated for use in the lateral compartment or for patients with ligament deficiency, or for use in simultaneous bilateral surgery or planned staged bilateral procedures. Potential risks include, but are not limited to, loosening, dislocation, fracture, wear and infection, any of which can require additional surgery. For a full list of product indications, contraindications and warnings, please see the associated product IFU.

Learn more about Oxford Cementless Partial knee

*compared to total knee arthroplasty

**compared to cemented partial knee

Wilk, AV., et al. Downhill walking gait pattern discriminates between types of arthroplasty: improved physiological knee functionality in UKA versus TKA. Knee Surg Sports Traumatol Arthrosc. 2015 Jun;23(6):1748-55. doi: 10.1007/s00167-014- 3240-x. Epub 2014 Aug 27.
Jones, G., et al. Gait comparison of unicompartmental and total knee arthroplasties with healthy controls. Bone Joint J 2016;(10 Suppl B):16–21.
Peersman, G., et al. "The forgotten joint score in total and unicompartmental knee arthroplasty: a prospective cohort study." International orthopaedics 43 (2019): 2739-2745.
Willis-Owen, C., et al.Unicondylar knee arthroplasty in the UK National Health Service: an analysis of candidacy, outcome and cost efficacy. The Knee. 2009 Dec 1;16(6):473-8
Zimmer Biomet. Oxford Cementless Partial Knee System: Instructions for Use. Zimmer Biomet; 2023. Accessed June 1, 2026. https://www.accessdata.fda.gov/cdrh_docs/pdf/P010014S105C.pdf
Adarsh, A. et al. "Partial versus total knee arthroplasty for isolated antero-medial osteoarthritis – An analysis of PROMs and satisfaction." SICOT-J. 2023
Pandit, H., et al. "Improved fixation in cementless unicompartmental knee replacement: five-year results of a randomized controlled trial." JBJS 95.15 (2013): 1365-1372.
Stempin R. Midterm Results of Cementless and Cemented Unicondylar Knee Arthroplasty with Mobile Meniscal Bearing: A Prospective Cohort Study. Open Orthop J. 2017 Oct 31;11:1173-1178. doi: 10.2174/1874325001711011173. PMID: 29290853; PMCID: PMC5721307
National Joint Registry of England Wales, Northern Ireland, the Isle of Man and Guernsey. 21st Annual Report 2024
Price AJ, Svard U. A second decade lifetable survival analysis of the Oxford unicompartmental knee arthroplasty. Clin Orthop Relat Res. 2011;469(1):174-179. doi:10.1007/s11999-010-1506
Mohammad, et al. (2018). Long-term outcomes of over 8,000 medial Oxford Phase 3 Unicompartmental Knees—a systematic review. Acta Orthopaedica, 89(1), 101–107. https://doi.org/10.1080/17453674.2017.1367577
Pandit, H et al. Cementless Oxford unicompartmental knee replacement shows reduced radiolucency at one year. JBJS (br.) Vol. 91-B. No. 2. February 2009.
Goodfellow, J.W. et al. A critique of revision rate as an outcome measure. Re-Interpretation of Knee Joint Registry Data. J Bone Joint Surg (Br) 2010;92-B:1628-31

Partial Knee Arthroplasty (PKA)

A solution for AMOA patients

Why remove healthy ligaments when you don’t need to?

of patients have AMOA^3,4

healthy ligaments intact⁵

PKA patients very satisfied⁶

Get help identifying patients today!

Benefits of using the Oxford^® Cementless Partial Knee
to address AMOA in patients

Important Safety Information:

Let's get started with your contact information

Thank you!

Thank you!

Information Request Received

Partial Knee Arthroplasty (PKA)

A solution for AMOA patients

Why remove healthy ligaments when you don’t need to?

of patients have AMOA3,4

healthy ligaments intact5

PKA patients very satisfied6

Get help identifying patients today!

Benefits of using the Oxford® Cementless Partial Knee to address AMOA in patients

Important Safety Information: ​

Reproducible technique

World Class Training

Efficient cementless technique,7,8

Survivorship that can be proven9-11

Misconception debunked: No increase in radiolucent lines (RLL’s)**

References

of patients have AMOA^3,4

healthy ligaments intact⁵

PKA patients very satisfied⁶

Benefits of using the Oxford^® Cementless Partial Knee
to address AMOA in patients

Important Safety Information: