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MRI findings in soccer players with long-standing adductor-related groin pain and asymptomatic controls
  1. Sonia Branci1,2,
  2. Kristian Thorborg1,
  3. Birthe Højlund Bech2,
  4. Mikael Boesen3,4,
  5. Michael Bachmann Nielsen2,
  6. Per Hölmich1,5
  1. 1Department of Orthopaedic Surgery, Sports Orthopaedic Research Center-Copenhagen, Arthroscopic Center Amager, Copenhagen University Hospital, Amager-Hvidovre, Denmark
  2. 2Department of Radiology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
  3. 3Department of Radiology, Bispebjerg and Frederiksberg Hospital University of Copenhagen, Copenhagen, Denmark
  4. 4Parker Institute, Bispebjerg and Frederiksberg Hospital University of Copenhagen, Copenhagen, Denmark
  5. 5Aspetar Sports Groin Pain Center, Qatar Orthopaedic and Sports Medicine Hospital, Doha, Qatar
  1. Correspondence to Dr Sonia Branci, Department of Radiology, Rigshospitalet, Blegdamsvej 9, Copenhagen OE 2100, Denmark; branci{at}webspeed.dk

Abstract

Background Soccer players are commonly affected by long-standing adductor-related groin pain (ARGP), but the clinical significance of MRI findings in these athletes is largely unknown. Our aims were (1) to evaluate whether MRI findings are associated with long-standing ARGP in soccer players, (2) to assess MRI findings in asymptomatic soccer players and non-soccer playing controls.

Methods This cross-sectional study included 28 male soccer players with long-standing ARGP, 17 male asymptomatic soccer players and 20 male asymptomatic non-soccer playing athletes of matching age and athletic exposure. Participants underwent identical standardised and reliable clinical examination, and MRI scans (3 T) of the pelvis performed by a blinded observer. Images were consensus rated by three blinded radiologists according to a standardised MRI evaluation protocol. The associations between clinical adductor-related findings and pathological MRI findings were investigated with χ2 statistics and OR.

Results Central disc protrusion (p=0.027) and higher grades of pubic bone marrow oedema (BMO; p=0.027) were significantly more present in symptomatic players than asymptomatic players. However, up to 71% of asymptomatic soccer players displayed different positive MRI findings, and asymptomatic soccer players had significantly higher odds (OR ranging from 6.3 to 13.3) for BMO, adductor tendinopathy and degenerative changes than non-soccer players.

Conclusions ARGP in soccer players was associated with central disc protrusion and higher grades of pubic BMO. Moreover, positive MRI findings were significantly more frequent in soccer players compared with non-soccer players irrespective of symptoms, suggesting that these MRI changes may be associated with soccer play itself rather than clinical symptoms.

  • MRI
  • Groin
  • Soccer
  • Lowever extremity
  • Sporting injuries

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