Survival of Ceramic vs. Metal Femoral Heads in Total Primary Hip Arthroplasty: An Observational Registry Study

This is a study protocol for an observational registry study on survival of ceramic vs. metal femoral heads in total primary hip arthroplasty. The protocol is based on the Standard Protocol Items: Recommendations for Interventional Trials (SPIRIT) guidelines (Chan et al., 2013). The structure of the protocol is amended for an observational study. Given the availability of the data during the writing of the protocol, we detail which methods are used to attain covariate balance (Cafri and Paxton, 2018). The outcome analysis is undertaken only after finalizing the protocol

Announcements

Observational Studies invites submission of comments on Leo Breiman’s paper “Statistical Modeling: The Two Cultures” (Statistical Science, 2001, 16(3), 199-231). Breiman’s paper will be reprinted on its 20^th anniversary along with comments. The deadline for submitting comments is March 5, 2021.

The 2020 Cochran award for best paper published in Observational Studies between 2015-2019 is awarded to Giancarlo Visconti and Jose Zubizarreta for their paper “Handling Limited Overlap in Observational Studies with Cardinality Matching.” The next Cochran award will be given in 2023 for a paper published between 2020-2022.