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Study quality on groin injury management remains low: a systematic review on treatment of groin pain in athletes
  1. Andreas Serner1,2,
  2. Casper H van Eijck3,
  3. Berend R Beumer3,
  4. Per Hölmich1,2,
  5. Adam Weir1,
  6. Robert-Jan de Vos4
  1. 1Aspetar Sports Groin Pain Center, Orthopaedic and Sports Medicine Hospital, Doha, Qatar
  2. 2Arthroscopic Center Amager, SORC-C, Copenhagen University Hospital, Amager-Hvidovre, Denmark
  3. 3Department of Surgery, Erasmus University Medical Centre, Rotterdam, The Netherlands
  4. 4Department of Orthopaedics, Erasmus University Medical Centre, Rotterdam, The Netherlands
  1. Correspondence to Dr Robert-Jan de Vos, Department of Orthopaedics, Erasmus Medical Centre, PO Box 2040, Rotterdam 3000 CA, The Netherlands; r.devos{at}erasmusmc.nl

Abstract

Background Groin pain in athletes is frequent and many different treatment options have been proposed. The current level of evidence for the efficacy of these treatments is unknown.

Objective Systematically review the literature on the efficacy of treatments for groin pain in athletes.

Methods Nine medical databases were searched in May 2014. Inclusion criteria: treatment studies in athletes with groin pain; randomised controlled trials, controlled clinical trials or case series; n>10; outcome measures describing number of recovered athletes, patient satisfaction, pain scores or functional outcome scores. One author screened search results, and two authors independently assessed study quality. A best evidence synthesis was performed. Relationships between quality score and outcomes were evaluated. Review registration number CRD42014010262.

Results 72 studies were included for quality analysis. Four studies were high quality. There is moderate evidence that, for adductor-related groin pain, active exercises compared with passive treatments improve success, multimodal treatment with a manual therapy technique shortens the time to return to sports compared with active exercises and adductor tenotomy improves treatment success over time. There is moderate evidence that for athletes with sportsman's hernia, surgery results in better treatment success then conservative treatment. There was a moderate and inverse correlation between study quality and treatment success (p<0.001, r=−0.41), but not between study quality and publication year (p=0.09, r=0.20).

Conclusions Only 6% of publications were high quality. Low-quality studies showed significantly higher treatment success and study quality has not improved since 1985. There is moderate evidence for the efficacy of conservative treatment (active exercises and multimodal treatments) and for surgery in patients with adductor-related groin pain. There is moderate evidence for efficacy of surgical treatment in sportsman's hernia.

  • Effectiveness
  • Methodological
  • Groin
  • Orthopaedics
  • Overuse

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