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General Orthopaedics

FIVE RULES TO AVOID NEUROVASCULAR INJURY IN TOTAL SHOULDER ARTHROPLASTY

The Current Concepts in Joint Replacement (CCJR) Spring 2018 Meeting, Las Vegas, NV, USA, 20–23 May 2018.



Abstract

Neurovascular injury during shoulder arthroplasty is uncommon and has been reported to occur in 1–4% of cases. The incidence of nerve abnormalities during intraoperative nerve monitoring during shoulder arthroplasty is substantially higher. However, the rate of false positives with nerve monitoring is high and the clinical significance of these intraoperative findings is unknown. Therefore, the clinical utility of intraoperative nerve monitoring is unproven. Regardless, experience with intraoperative nerve monitoring has allowed us to identify the times during the procedure when measurable nerve dysfunction is most common. Moreover, experience as well as familiarity with reported patient and anatomic risk factors may help reduce the incidence of neurovascular injury.

Five rules that will likely help to reduce intraoperative nerve injuries include recognition of reported patient risk factors, knowledge of relevant anatomy and normal anatomic variations, intraoperative identification and protection of at-risk neurovascular structures, limitation of overall operative time and the amount of time with the arm in at-risk positions, and minimization of retraction force.

It is likely not possible to completely avoid neurovascular injuries during TSA. However, by following these five rules, the risk of neurovascular injury can be minimised.