Moving beyond total knee replacement.
Dr CR Oosthuizen's pioneering work in Unicompartmental Knee Arthroplasty focuses on anatomical preservation through the UniQ implant and the KOGS grading system — restoring natural movement rather than replacing it.
The KOGS Grading System.
The Knee Osteoarthritis Grading System (KOGS) is the diagnostic framework Dr Oosthuizen uses to determine the precise threshold for surgical intervention — and to identify the patients who will benefit most from a UKA rather than a full replacement.
Early wear — non-operative management, biomechanical correction and orthobiologics.
Focal unicompartmental wear — the primary candidate window for the UniQ UKA.
Multi-compartment progression — strategic assessment for total knee or staged options.
End-stage disease with deformity — total knee arthroplasty with full kinematic planning.
"The UniQ protocol let me return to hiking within weeks. The UKA approach preserved my natural movement — it didn't replace it."— UKA patient, 2 years post-surgery
Academic Footprint
- 30+Years in private orthopaedic practice.
- 20+Peer-reviewed publications on UKA methodology and outcomes.
- 1Authored textbook: The UKA.