• Sandra Feissli, Laurent Audigé, Amir Steinitz, Andreas M Müller, and Daniel Rikli.
• Department of Orthopaedic Surgery and Traumatology, University Hospital of Basel, Spitalstrasse 21, 4031, Basel, Switzerland.
• Arch Orthop Trauma Surg. 2020 Dec 1; 140 (12): 1971-1976.

BackgroundNo consensus exists on the optimal treatment of proximal humeral fractures (PHFx). Uncertainty about surgical treatment in the older adults using locking plates (e.g., PHILOS) has emerged, due to a high number of complications. This study aimed to assess the impact of non-operative versus operative treatment of a PHFx on the level of self-dependence in our older population.MethodsWe included patients aged over 65 years with some level of self-dependence, treated at our hospital between 5/2011 and 4/2013 for isolated PHFx of AO subtypes A2, A3, and B1 for which either non-operative or surgical treatment using a PHILOS plate had been applied. The patients were questioned, examined, or interviewed via phone; AO fracture patterns and treatment were documented as well as level of self-dependence, complications, constant score (CSM), subjective shoulder value (SSV), quality of life (EQ-5D), and shoulder pain and disability index (SPADI).ResultsPatients with PHFx of AO subtypes A2, A3, or B1 that were either treated non-operative (n = 50) or operative by insertion of the PHILOS plate (n = 63) were included. Operative-treated patients were 3.3 times as likely to lose some level of independence (95% CI 0.39-28, p = 0.271). Shoulder motion, strength, and functional outcomes tended to be lower in operative-treated patients, with adjusted differences of, - 11 CMS points (95% CI - 23 to 2), - 9 SPADI points (95% CI - 18 to 0), and - 6% in SSV (95% CI - 17 to 5). Quality-of-life EQ-5D utility index was similar in both groups (mean - 0.04; 95% CI - 0.18 to 0.10).ConclusionIn our study population, non-operatively treated older adults with an AO type A2, A3, B1 fracture of the proximal humerus tended to have a high chance to return to their premorbid level of independence, compared to patients treated with a locking plate. A change in the treatment algorithm for these PHFx may be carefully considered and further investigated in clinical practice.

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