Precision Treatment for Localized Knee Arthritis – With a Faster Recovery
If knee pain is limited to one side of your knee and is affecting your ability to stay active, a Partial (Unicompartmental) Knee Replacement may offer effective relief with a less invasive procedure and quicker recovery than a total knee replacement.
At Dr. Armin Arshi’s practice, we use the advanced MAKO Robotic-Assisted System to perform precisely targeted partial knee replacements, allowing for accurate implant positioning and more natural knee movement—all with same-day discharge for most patients.
What is Partial Knee Replacement?
Also known as unicompartmental knee replacement, this procedure involves replacing only the damaged part of the knee joint, preserving the healthy bone, cartilage, and ligaments.
It’s typically recommended when arthritis or wear is limited to a single compartment of the knee—most often the inner (medial) side.
Why Choose Dr. Arshi?
- Fellowship-trained orthopedic surgeon
- Expert in robotic-assisted joint replacement
- Utilizes MAKO technology for personalized surgical precision
- Offers minimally invasive techniques with smaller incisions
- Focuses on rapid recovery and same-day discharge
- Provides thorough preoperative evaluation to ensure the right treatment for each patient
Partial Knee Replacement of the Medial Compartment (performed with MAKOplasty)
Not Everyone Is a Candidate—And That’s Okay
While partial knee replacement is an excellent option for some, it’s not suitable for everyone. Patients with widespread arthritis or ligament instability may benefit more from a total knee replacement. Dr. Arshi uses detailed imaging, physical exams, and medical history to determine the best treatment path—always personalized to your needs.
What to Expect
Before Surgery:
A complete evaluation including X-rays or advanced imaging will help determine if you’re a candidate for partial knee replacement.
During Surgery:
Using MAKO robotic guidance, Dr. Arshi performs the procedure with sub-millimeter accuracy, replacing only the affected area while protecting the healthy parts of your knee.
After Surgery:
Most patients walk shortly after the procedure and return home within hours. Recovery is typically faster than with total knee replacement, though physical therapy remains important for best results.
Recovery Timeline
Patients often resume low-impact activities within 2 to 4 weeks, with continued improvement in mobility and function over the following months. Most people experience significant pain relief and a return to a more active lifestyle.
Partial Knee Replacement of the Lateral Compartment (performed with MAKOplasty)
The Benefits of Partial Knee Replacement
- Smaller incision and less disruption to surrounding tissue
- Faster recovery and less postoperative pain
- More natural knee movement
- Preserved bone and ligaments
- Outpatient procedure—go home the same day
Frequently Asked Questions
Dr. Arshi uses a combination of physical examination, X-rays, and sometimes advanced imaging (like MRI) to determine whether arthritis is limited to one part of the knee. Patients must also have intact ligaments and no significant deformity.
MAKO is a cutting-edge surgical system that uses a 3D CT scan to create a personalized plan for your knee. During surgery, it provides real-time guidance and precision for implant placement, improving accuracy and outcomes.
Yes—most patients undergoing partial knee replacement with Dr. Arshi are able to go home just hours after surgery. Some may need a little more time based on individual health needs, but an overnight stay is uncommon.
Most patients are walking with assistance the day of surgery and resume light activity within 2–4 weeks. Physical therapy helps improve strength, mobility, and function during recovery.
If imaging or exam shows more extensive arthritis or instability, Dr. Arshi may recommend a Total Knee Replacement for the best long-term outcome. He will explain all your options clearly, with your goals in mind.
Wondering if you’re a candidate for partial knee replacement?
Schedule a consultation with Dr. Arshi to learn more about your options and get a personalized treatment plan.