Effectiveness of rib fixation compared to pain medication alone on pain control in patients with uncomplicated rib fractures: study protocol of a pragmatic multicenter randomized controlled trial-the PAROS study (Pain After Rib OSteosynthesis)

Jean Yaniss Perentes, Michel Christodoulou, Etienne Abdelnour-Berchtold, Wolfram Karenovics, Angèle Gayet-Ageron, Michel Gonzalez, Thorsten Krueger, Frédéric Triponez, Philippe Terrier, Benoît Bédat, Jean Yaniss Perentes, Michel Christodoulou, Etienne Abdelnour-Berchtold, Wolfram Karenovics, Angèle Gayet-Ageron, Michel Gonzalez, Thorsten Krueger, Frédéric Triponez, Philippe Terrier, Benoît Bédat

Abstract

Background: Persistent pain and disability following rib fractures result in a large psycho-socio-economic impact for health-care system. Benefits of rib osteosynthesis are well documented in patients with flail chest that necessitates invasive ventilation. In patients with uncomplicated and simple rib fractures, indication for rib osteosynthesis is not clear. The aim of this trial is to compare pain at 2 months after rib osteosynthesis versus medical therapy.

Methods: This trial is a pragmatic multicenter, randomized, superiority, controlled, two-arm, not-blinded, trial that compares pain evolution between rib fixation and standard pain medication versus standard pain medication alone in patients with uncomplicated rib fractures. The study takes place in three hospitals of Thoracic Surgery of Western Switzerland. Primary outcome is pain measured by the brief pain inventory (BPI) questionnaire at 2 months post-surgery. The study includes follow-up assessments at 1, 2, 3, 6, and 12 months after discharge. To be able to detect at least 2 point-difference on the BPI between both groups (standard deviation 2) with 90% power and two-sided 5% type I error, 46 patients per group are required. Adjusting for 10% drop-outs leads to 51 patients per group.

Discussion: Uncomplicated rib fractures have a significant medico-economic impact. Surgical treatment with rib fixation could result in better clinical recovery of patients with uncomplicated rib fractures. These improved outcomes could include less acute and chronic pain, improved pulmonary function and quality of life, and shorter return to work. Finally, surgical treatment could then result in less financial costs.

Trial registration: ClinicalTrials.gov NCT04745520 . Registered on 8 February 2021.

Keywords: Chronic pain; Pain; Rib fractures; Rib osteosynthesis.

Conflict of interest statement

The authors declare that they have no competing interests. The study is conducted in total independence from the medical device manufacturers.

© 2022. The Author(s).

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Source: PubMed

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