ERASMUS, Raoul D; FOURIE, Pieter J; JANSE VAN RENSBURG, Charl  e  JACOBS, Hans W. An audit on the accuracy of freehand acetabular cup positioning in total hip arthroplasty with the direct lateral approach at a tertiary institution over seven years. SA orthop. j. [online]. 2022, vol.21, n.4, pp.202-206. ISSN 2309-8309.