Determining educational assessment criteria for patellar-tendon-bearing impressions for transtibial prosthetic sockets: a Delphi study.

A high level of consensus was achieved in two survey rounds. Lower levels of consensus were reached on specific objective criteria, such as use of measurement thresholds when evaluating student impressions. Standardized assessment of student performance on PTB impression-taking instead relies primarily on qualitative assessments based on instructor expertise.