NCT04553497.

Study name	IFC therapy in proximal humerus fractures Official title: Interferential current provides additional benefit to rehabilitation program for the patients with proximal humeral fractures: a randomized controlled study
Methods	Triple‐blind quasi‐randomised controlled trial (participant, investigator, outcomes assessor). Randomised by coin toss
Participants	35 participants, aged 40 to 80 years, proximal humeral fractures that did not require surgery Exclusion criteria: had any surgery due to proximal humerus fracture; any previous experience of any electrotherapy prior to the proximal humeral fracture (to ensure blinding of therapy); any contraindication for interferential current; had experienced a known or suspected joint infection or a specific condition such as peripheral or central nervous system lesions, neoplasm, diabetes mellitus or osteonecrosis; any history of mental impairment or poor general health status that would affect results
Interventions	1. Rehabilitation and interferential current therapy 2. Rehabilitation and sham interferential current therapy
Outcomes	Follow‐up: 4 months Primary outcome: Constant score (at week 6) Secondary outcomes: visual analogue scale score, DASH score
Starting date	1 April 2014 End date: 15 October 2015
Contact information	Emine Duran (PI)  Ege University, School of Medicine, Physical Medicine and Rehabilitation, Turkey
Notes	Trial details submitted 11 September 2020. Observation by HH on 5 May 2022: the results of this trial are now available via the clinicaltrial.gov website: clinicaltrials.gov/ct2/show/study/NCT04553497