Nordic DeltaCon Trial: Non-operative Treatment Versus Reversed Total Shoulder Prosthesis in Patients Sixty Five Years of Age and Older With Displaced 3- and 4 Parts Proximal Humeral Fractures - a Prospective, Randomized Controlled Trial
Nordic DeltaCon Trial: Non-operative Treatment Versus Reversed Total Shoulder Prosthesis in Patients Sixty Five Years of Age and Older With Displaced 3- and 4 Parts Proximal Humeral Fractures - a Prospective, Randomized Controlled Trial
The Nordic DeltaCon Trial is a prospective, single-blinded, randomized, controlled, multi-center and multi-national trial comparing reverse prosthesis and non-operative treatment in displaced proximal humerus fractures, in the elderly patients aged 65 to 85 years with displaced OTA/AO group B2 or C2 fractures (According to the new 2018 revision: AO/OTA (Orthopaedic Trauma Association) group 11-B1.1, 11-B1.2 and 11-C1.1, 11-C3.1. )
Single-blinded, multi-center, multi-national (Finland, Sweden, Denmark, Norway) Primary outcome in this study is QuickDASH (The short form of Disabilities of the arm, shoulder and hand) score measured at two years.
Secondary outcomes are QuickDASH at/after one, two (short term) and five years (medium term), general visual analog scale (VAS) for pain, Oxford shoulder score (OSS), Constant-score (CS), number of re-operations and complications. Quality of life is assessed with 15-D. Cost-effectiveness analysis will be performed after completion of the trial.
In addition to 2 years main outcome (short term) follow-up will continue to 5 years (medium term) and 10 years (long term). The power calculation is based on 2 years.
Inclusion Criteria:
Low energy AO/OTA group 11-B1.1, 11-B1.2 and 11-C1.1, 11-C3.1. Both B and C type includes subgroups: Displaced [2], Impacted [3] or Non impacted [4] from the universal modifiers list.
Exclusion Criteria:
Radiographic Mal-inclination Less than; varus 30°or valgus 45° Less than 50% contact between head fragment and meta-/diaphysis Head split fractures with more than 10% of the articular surface in the main head fragment.
Head split fractures (group 11-C3.2 and 11-C3.3) with more than 10% of the articular surface in the main head fragment.
Dislocation or fracture-dislocation of the gleno-humeral joint Pathological fracture
General