The impact of COVID-19 on idiopathic scoliosis referrals: cause for concern.

STUDY DESIGN: Retrospective comparative review. OBJECTIVE: The aim of this study was to determine the short-term impact of the COVID-19 pandemic on the demographic and clinical profile of new idiopathic scoliosis (IS) patients, with a particular focus on treatment and late referral. The COVID-19 pandemic has limited health-care services and public access and, as a result, the diagnosis and management of non-COVID-19 health conditions have been compromised. Delayed diagnosis of IS may limit conservative treatment options and subsequently, increase a patient's risk of requiring surgical intervention. METHODS: The volume of spine referrals received and new IS clinic visits were compared between March 15-October 15, 2019 and the same period in 2020. A chart and radiographic review detailed the patient profile at initial presentation. Descriptive statistics and comparative analyses examined the referral source, curve magnitude, skeletal maturity, and prescribed treatment. Late referrals were those with a curve magnitude ≥ 50°, or > 40° and Risser 2 or less. RESULTS: During the 2020 study period, the referral volume decreased 76% and clinic visits 55%. The 2019 cohort was similar in age (13.7 ± 2.1 years vs 13.3 ± 2.3 years, p = 0.08), Risser score distribution (p = 0.32), menarchal status (0.07), and curve magnitude (37.1° ± 3.8° vs 39.0° ± 16.0°, p = 0.22). During the pandemic, there was an increased proportion of referrals made by pediatricians (41 to 54%, p = 0.01). The proportion of brace prescriptions increased from 30 to 42% (p = 0.01). The proportion of surgical bookings and late referrals were increased but did not reach significance. CONCLUSION: Despite no significant increase in the magnitude of the curve at initial presentation or the proportion of late referrals, there was a marked decrease in referral volume, over the first 7 months of the COVID-19 pandemic. This suggests that the majority of expected new IS patients remain undiagnosed. A future increase in late referrals should be anticipated. LEVEL OF EVIDENCE: III.