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The MeNT-OS Score for Orthopaedic Surgery: An Objective Scoring System for Prioritisation of Orthopaedic Elective
Sumanth Madhusudan Prabhakar1, Joshua Decruz1, Remesh Kunnasegaran1
1Department of Orthopaedic Surgery, Tan Tock Seng Hospital, 11 Jalan Tan Tock Seng, Singapore, 308433 Singapore.
Introduction:
The reintroduction of elective Orthopaedic surgery during the COVID-19 pandemic is likely to occur in phases, dictated by resource limitations and loco-regional pandemic status. Guidelines providing a general framework for the prioritisation of surgery have largely been based on surgical urgency, while scoring systems such as the MeNTS score may have limited applicability in the setting of Orthopaedic Surgery. We, therefore, propose an Orthopaedic-specific algorithm ('MeNT-OS'), based on a modification of the MeNTS scoring system, that may be used to objectively triage and prioritise Orthopaedic cases during the COVID-19 pandemic.
Methods:
We developed a scoring algorithm modified from the Medically Necessary Time-Sensitive Procedure (MeNTS) score with 13 unique variables, reflecting human and physical resource utilisation, surgical complexity, functional status of patients, as well as COVID-19 transmission risk. This score was then trialled in a sample of 118 cases, comprising 69 completed and 49 postponed cases. A higher overall score was intended to correlate with lower surgical prioritisation.
Results:
The use of our scoring system resulted in higher average scores for postponed cases compared to completed cases, as well as higher median, 25th and 75th percentile scores. These results were statistically significant and showed concordance with the ad hoc decisions made before the scoring system was used, with the lower scores for completed cases suggesting a more favourable risk-benefit ratio for being performed as compared to the postponed cases.
Conclusion:
The utility of the proposed 'MeNT-OS' scoring system has been assessed using data from our institution and offers an objective and systematic approach that is geared towards Orthopaedic procedures. We believe this scoring tool can provide Orthopaedic surgeons a safe and equitable approach to making difficult decisions on prioritisation of surgery during the COVID-19 period, and possibly other resource-limited settings in the future.
