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Partial Knee Replacement

Partial Knee Replacement is a minimally invasive surgical procedure designed to treat arthritis or damage affecting only one part of the knee joint, helping patients regain mobility with faster recovery and preservation of healthy knee tissue.

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What is Partial Knee Replacement?

Partial Knee Replacement (PKR), also known as Unicompartmental Knee Replacement, is a surgical procedure in which only the damaged portion of the knee joint is replaced with an artificial implant while preserving the healthy bone, cartilage, and ligaments.
This procedure is suitable for patients with knee damage limited to a single compartment and offers a more natural knee movement compared to total knee replacement.
The main goal of Partial Knee Replacement is to relieve pain, restore function, and maintain natural knee motion.

Who Needs Partial Knee Replacement?

You may be a candidate for Partial Knee Replacement if you experience:
  • Pain localized to one side of the knee
  • Knee arthritis limited to a single compartment
  • Good knee stability and ligament function
  • Difficulty walking or climbing stairs
  • Knee pain that does not improve with medication or physiotherapy
  • Desire to maintain natural knee movement

Causes of Knee Damage Treated by Partial Replacement

Partial Knee Replacement may be recommended due to:
  • Early to moderate osteoarthritis
  • Localized cartilage damage
  • Post-traumatic arthritis affecting one knee compartment
  • Degeneration limited to medial or lateral knee side

Procedure of Partial Knee Replacement

1. Before Surgery

  • Detailed knee evaluation and imaging tests
  • Blood tests and overall fitness assessment
  • Pre-operative physiotherapy guidance
  • Medication review and surgical planning

2. During Surgery

  • Small incision is made over the knee
  • Only damaged knee compartment is replaced
  • Healthy bone and ligaments are preserved
  • Surgery typically lasts 1–2 hours
  • Performed under spinal or general anesthesia

3. After Surgery

  • Early mobilization within 24 hours
  • Less post-operative pain compared to total knee replacement
  • Shorter hospital stay
  • Physiotherapy starts early
  • Faster return to daily activities

Benefits of Partial Knee Replacement

  • Faster recovery time
  • Smaller incision and less tissue damage
  • More natural knee movement
  • Better range of motion
  • Reduced pain and swelling
  • Long-lasting and reliable results

Recovery & Rehabilitation

Recovery after Partial Knee Replacement is usually quicker than total knee replacement:
  • Walking begins within 1–2 days
  • Most daily activities resume within 3–4 weeks
  • Driving usually possible within 3–4 weeks
  • Full recovery achieved in 6–12 weeks
Regular physiotherapy and follow-up visits ensure optimal long-term outcomes.