The Prathmesh PS Hinge Knee Replacement System (IVGeneration) by DKSORTHO represents an advanced evolution in total kneearthroplasty, designed to provide maximum stability, mobility, and longevityfor patients with severe knee deformities or ligament deficiencies. Engineeredwith precision, the system incorporates a posterior-stabilized (PS) hingemechanism, ensuring controlled flexion-extension movement and enhancedrotational freedom while maintaining joint stability. The components are madefrom high-grade cobalt-chromium alloy for excellent wear resistance andbiocompatibility, complemented by UHMWPE tibial inserts for smootharticulation. The IV Gen design improves upon previous generations with refinedgeometry, modular instrumentation, and optimized load distribution, allowingfor accurate alignment and balanced joint mechanics during surgery. This systemis suitable for both complex primary and revision knee replacement cases,offering surgeons versatility and patients superior post-operative function.