Modern open shoulder surgery has advanced significantly through improved implant design, patient-specific planning, and soft-tissue preservation. Key advancements include:
• Reverse Total Shoulder Arthroplasty (RTSA): Expanded indications beyond rotator cuff arthropathy to include complex fractures, revision surgery, and selected cases of severe arthritis with rotator cuff deficiency.
• Anatomic Total Shoulder Arthroplasty (TSA): New implant designs improve restoration of shoulder biomechanics while preserving bone stock.
• Augmented glenoid implants: Correct glenoid bone loss and retroversion without requiring excessive bone removal.
• Convertible implant systems: Allow surgeons to convert an anatomic shoulder replacement to a reverse shoulder replacement during revision surgery while retaining portions of the original implant in selected cases.
• Patient-specific instrumentation (PSI): CT-based guides improve accuracy of glenoid component placement, especially in patients with complex deformity.
• Three-dimensional CT planning: Enables surgeons to evaluate bone loss, simulate implant positioning, determine component sizing, and optimize screw trajectories before surgery.
• Computer-assisted navigation: Provides real-time intraoperative guidance to improve implant positioning and alignment.
• Robotic-assisted technology: Emerging systems are being investigated to enhance precision in implant placement, although adoption remains limited compared with hip and knee arthroplasty.
• Stemless humeral implants: Preserve humeral bone and may simplify future revision surgery in appropriately selected patients.
• Short-stem humeral components: Reduce stress shielding while maintaining stable fixation.
• Modern biomaterials and coatings: Improved polyethylene, porous metal coatings, and biologic fixation surfaces are designed to enhance implant longevity and osseointegration.
• Enhanced soft-tissue management: Improved subscapularis repair techniques and attention to soft-tissue balancing contribute to shoulder stability and postoperative function.
• Perioperative pain management: Regional anesthesia, multimodal analgesia, and enhanced recovery protocols help reduce opioid use and support earlier rehabilitation.
• Complex revision techniques: Advanced approaches address instability, implant loosening, infection, bone loss, and periprosthetic fractures with specialized implants and reconstruction strategies.
These advancements are frequently incorporated into cadaver-based shoulder arthroplasty courses, where surgeons practice surgical exposure, glenoid preparation, humeral implantation, patient-specific instrumentation, revision techniques, fracture reconstruction, and management of complications before performing these procedures in clinical practice.
