A survey of a random sample of 200 physiotherapy trials indexed on PEDro has revealed that the descriptions of physiotherapy interventions are typically incomplete. The survey, published in Physiotherapy, used the 12-item Template for Intervention Description and Replication (TIDieR) checklist to investigate the completeness of reporting of interventions provided to the treatment and control groups. 23% of trials described less than half of the TIDieR items for the treatment group. Reporting was worse for the control groups, with 75% of trials describing less than half of the TIDieR items. Improved reporting is required to translate research into practice.