Dr CR Oosthuizen performing unicompartmental knee arthroplasty in theatre at Johannesburg Surgical Hospital
Partial vs Full Knee Replacement

Keep what's healthy. Replace only what's worn.

A partial knee replacement is a smaller operation for people whose arthritis is on only one side of the knee. For the right patient, it recovers faster and feels more natural than a full knee replacement.

What matters
Partial knee replacement
Full knee replacement
What is kept
Your ligaments and healthy cartilage stay; about 75% less bone is removed
Ligaments are often cut and more bone is removed
Size of the cut
Small cut, less muscle disturbed
Longer cut, whole joint opened up
Recovery time
Walking the same day; back to normal in weeks, not months
Several months of rehab
How the knee feels
Feels close to your own natural knee
More mechanical, less natural feel
Who it suits
Arthritis on one side of the knee only, with intact ligaments
Arthritis across the whole knee, or severe damage

Faster recovery

Many patients walk the same day of surgery and get back to easy activity within weeks.

Smaller scar

A smaller cut means less bruising, less pain and quicker healing.

Feels like your own knee

Because your natural ligaments stay in place, the knee still moves and feels like yours.

Could a partial knee replacement work for you?

Take the 2-minute Knee Check, or book a consultation with Dr Oosthuizen directly.

Talk to the rooms

Got a question about your knee?

Call or WhatsApp Dr Oosthuizen's rooms directly, or send a booking request and the team will come back to you within one business day.

Not for medical emergencies — phone 10177 for an ambulance or attend your nearest emergency unit.

Next Step

Request an Appointment

Speak directly with Dr Oosthuizen's rooms. We respond within one business day.

Handled in line with POPIA. Not for medical emergencies — call 10177 instead.

Next step

Find out if a partial knee replacement is right for you

Book a consultation with Dr Oosthuizen. He'll look at your X-rays, examine your knee and talk you through your options in plain language.

  • Mon·JSH·06:30 – 10:00
  • Tue·Wilgeheuwel·06:30 – 10:00
  • Thu·JSH·06:30 – 12:00
Consulting: Mon · Tue · Thu (AM)