Partial Knee Replacement, also called unicompartmental knee arthroplasty (UKA), is a surgical procedure that replaces only the damaged compartment of the knee joint while preserving healthy bone, cartilage, and ligaments. This procedure is ideal for patients with arthritis limited to one area of the knee, offering a less invasive alternative to total knee replacement with faster recovery and more natural knee function. At Arthroscenter, Dr. Gurudeo Kumar has performed over 400 successful partial knee replacements using advanced minimally invasive techniques and modern implant designs. Our facility in Bihar offers the latest robotic-assisted partial knee replacement technology, ensuring precise implant positioning and optimal outcomes for carefully selected patients. The knee joint has three compartments: medial (inside), lateral (outside), and patellofemoral (kneecap). Partial knee replacement addresses damage in just one compartment, typically the medial compartment which wears out most commonly due to natural alignment and loading patterns. The procedure uses smaller incisions (3-4 inches vs 8-10 inches for total knee), preserves the ACL and PCL ligaments, and maintains normal knee kinematics, resulting in a more natural-feeling knee. Success rates for partial knee replacement exceed 90% with modern techniques and proper patient selection. Most patients experience excellent pain relief, faster recovery than total knee replacement (walking without aids in 2-3 weeks vs 6-8 weeks), and return to higher activity levels including sports. The implants typically last 15-20 years, and if needed in the future, conversion to total knee replacement remains an option.