NTR3208.

Methods	Multicentre, randomised controlled trial. Unblinded
Participants	52 participants aged over 65 years with displaced 3‐ or 4‐part proximal humeral fractures who are candidates for primary shoulder arthroplasty
Interventions	1. Aequalis reverse fracture prosthesis 2. Aequalis fracture prosthesis
Outcomes	Follow‐up: 1 year Primary outcome: Constant score Secondary outcomes: DASH (Disabilities of the Arm, Shoulder and Hand) Score, SF‐12 questionnaire, VAS pain
Notes	Start date: July 2010 Estimated completion date: December 2014 Trial registration renumbered from NTR3208 to NTR3060 Yde Engelsma was based at Medisch Centrum Alkmaar, the Netherlands at time of registration. Since 2016 is now working in Movement Care Clinic in Naarden. Email querying status sent on 17 July 2020 to gmail address, valid in 2012 in publication, ydedepunt@gmail.com. Top‐up search conducted in November 2021 included the full trial report that reported results for 33 participants (Z‐TUp Laas 2021)