Essentials of Musculoskeletal Imaging (2023)-MSES3319-2023

Video Transcription

Video Summary

Janelle Thomas discusses shoulder arthroplasty and focuses on the reverse total shoulder arthroplasty (RTSA) due to its increasing prevalence since its FDA approval in 2003, especially for patients with a full-thickness rotator cuff tear. She explains the RTSA components, highlighting challenges in identifying implant parts, such as the glenosphere and metaglene, which are crucial for correct diagnosis and understanding. Thomas reviews common RTSA complications, including coracoid fractures and scapular notching, emphasizing the importance of recognizing these issues, as they often occur in osteoporotic patients and can be difficult to detect on initial images. She notes the evolving surgical techniques to minimize complications, such as lateralizing the center of rotation. Additionally, Thomas touches on the topic of implant infections, noting the potential for misidentification due to nonspecific symptoms and the challenges in diagnosing them, describing how fluid aspirates are analyzed differently for infection-associated bacteria like C. acnes. She also discusses advances in imaging and its use in diagnosing lower extremity trauma, bone contusions, occult fractures, cartilage injuries, muscle injuries, and tendon injuries, highlighting the benefits of MRI in soft tissue evaluation. The session concludes with a discussion on hardware in foot and ankle surgeries, detailing the advancements and variety of implants and fixation systems that have developed to improve surgical outcomes and patient recovery.

Keywords

shoulder arthroplasty

reverse total shoulder arthroplasty

RTSA

rotator cuff tear

glenosphere

metaglene

scapular notching

coracoid fractures

osteoporotic patients

implant infections

C. acnes

MRI imaging