Advances in Glenoid Design in Anatomic Total Shoulder Arthroplasty. (21st October 2020)

• Record Type: Journal Article
• Authors: Trivedi, Nikunj N.; Shimberg, Jilan L.; Sivasundaram, Lakshmanan; Mengers, Sunita; Salata, Michael J.; Voos, James E.; Gillespie, Robert J.
• Is Part Of: Journal of bone and joint surgery. Volume 102:Number 20(2020)
• Publication Date: 2020-10-21
• Subjects: Bones -- Surgery -- Periodicals; Joints -- Surgery -- Periodicals; Orthopedics -- Periodicals; Orthopedics; General Surgery; Bone Diseases; Joint Diseases; Bones -- Surgery; Joints -- Surgery; Orthopedics; Bot (anatomie); Gewrichten; Chirurgie (geneeskunde); Periodicals; Electronic journals; Periodicals; 617.47005
• DOI: 10.2106/JBJS.19.01294
• Languages: English
• ISSNs: 0021-9355

Abstract

Abstract : Rotator cuff imbalance, soft-tissue and capsular repair defects, and improper component sizing, positioning, and orientation can result in a high-stress environment at the periphery of the glenoid component-bone interface. The optimal position and orientation of the glenoid for a given individual is currently unknown. There have been advancements in glenoid design, with the advent of contemporary metal-backed and hybrid components, but their long-term efficacy has not been proven. Inset glenoid components have shown promising short- and mid-term results. The augmented glenoid, which has shown satisfactory short-term results in the setting of posterior glenoid loss, is a potential option for glenoid bone loss that is too severe for eccentric reaming. It may be technically easier than bone-grafting, does not require union, and is not at risk of collapse or bone graft resorption. Advances in surgical technique, including patient-specific instrumentation, may provide additional accuracy, especially in dysplastic and eccentrically worn glenoids; however, evidence for clinical benefit is still lacking.