The Reason for a Choice.- Bicompartmental Arthroplasty: Past, Present, and Future.- Unicondylar Knee Replacement and the Cruciate Ligaments.- Mobile and Fixed Bearings in Unicondylar Knee Resurfacing Indications vs Osteotomies and Total Knee Replacement.- UKR Surgical Technique: Pearls and Pitfalls.- Unicompartmental Knee Arthroplasty with a Mobile-Bearing Prosthesis: Long-Term Results.- Lateral Unicompartmental Knee Replacement: Long-Term Survival Study.- Computer-Assisted Unicompartmental Knee Replacement: Technique and Results.- The Bi-unicompartmental Knee Prosthesis.- Tissue-Sparing Surgery (TSS) and Computer-Assisted Surgery (CAS) in Knee Reconstruction: Bi-Unicompartmental vs Total Knee Arthroplasty.- Bicompartmental Prosthesis.- Surgical Technique and Long-Term Results of Bicompartmental Reconstruction with Small Implants.- Arthrosurface Inlay Resurfacing: Indications, Surgical Tecnique and Results.- Isolated Patellofemoral Replacement.- Partial Knee Arthroplasty.- Revision of UKR