Br J Sports Med doi:10.1136/bjsports-2014-093831
  • Editorial

What fooled us in the knee may trip us up in the hip: lessons from arthroscopy

  1. Charles Ratzlaff4
  1. 1Australian Centre for Research into Injury in Sport and its Prevention (ACRISP), Federation University Australia, Ballarat, Victoria, Australia
  2. 2School of Health and Rehabilitation Sciences, University of Queensland, Brisbane, Queensland, Australia
  3. 3Institute of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark
  4. 4Department of Bone Radiology and Rheumatology, Brigham and Women's Hospital/Harvard Medical School, Boston, Massachusetts, USA
  1. Correspondence to
    Joanne L Kemp, Australian Centre for Research into Injury in Sport and its Prevention (ACRISP), Federation University Australia, P.O. Box 663, Ballarat, VIC 3350, Australia; jkemp{at}
  • Accepted 13 May 2014
  • Published Online First 6 June 2014

“The only good thing about repeating your mistakes is you know when to cringe.” Aleksandr Solzhenitsyn

Those old enough to remember when knee arthroscopy revolutionised treatment of the injured meniscus several decades back might be forgiven if a sense of déjà vu is emerging from the hip. Hip labral tears are increasingly seen on imaging and at hip arthroscopy in people with hip and groin pain, which coincides with improved diagnostic techniques and the rapid growth of arthroscopic surgery.1 The number of hip arthroscopies have increased 1800% in the USA over the past 5–10 years,2 with dramatic increases also reported in the UK, Australia and elsewhere worldwide.

The similarities between the meniscus and labrum are striking on several fronts. The knee meniscus and acetabular labrum are comprised of fibrocartilage that has a partially innervated peripheral vascular red zone.3 …

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