Southwick angle measurements and SCFE slop severity classifications are affected by frog-lateral positioning.
Jones CE, Cooper AP, Doucette J, Buchan LL, Wilson DR, Mulpuri K, d’Entremont AG. Southwick angle measurements and SCFE slop severity classifications are affected by frog-lateral positioning. Skeletal Radiol. January 2018. DOI: 10.1007/s00256-017-2761-z.