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hip_labral_tear

labral tear hip joint

introduction

  • tear of the labrum of the acetabulum is said to account for 20-50% of “idiopathic” hip pain where there is no obvious cause
  • diagnosis is often delayed by 2 years as the labrum is not well demonstrated on US, XRay, CT or MRI scans, although a MRA scan does have better sensitivity for detecting these tears.
  • arthroscopic debridement may be required for those who fail conservative Mx.

aetiology

  • 5 categories of aetiology:
    • trauma
    • femoroacetabular impingement (FAI)
    • capsular laxity/hip hypermobility
    • dysplasia of the hip
    • degeneration of the hip joint

clinical features

  • over half are of insidious onset whilst others are acute after a precipitant or have intermittent episodes
  • 90% complain of anterior hip or groin pain (esp. if anterior labral tear)
  • some have anterior thigh, lateral hip or buttock pain (esp. of posterior labral tear) and may radiate to knee
  • women may also have concomitant pelvic-floor pain
  • may also have clicking, locking or catching, or giving way and develop hip instability
  • walking, pivoting, prolonged sitting, and impact activities, such as running, often aggravate symptoms
  • most have night pain
  • most commonly reported ROM limitation was in rotation, but hip flexion, adduction, and abduction ROM limitations also have been reported
  • positive anterior hip-impingement test may be present
    • performed with the patient supine with the hip and knee at 90° of flexion.
    • hip is internally rotated while an adduction force is applied.
    • positive test results in pain provocation in the anterolateral hip or groin
  • positive posterior hip impingement test may be present
    • patient lies prone with hip and knee extended and the examiner passively extends, adducts, and externally rotates hip
    • positive test reproduces anterior hip or posterior pelvic pain
  • physical exam findings remain inconsistent, likely because of the variable locations of labral tears

investigation

  • US, XRay to exclude other pathology
  • MRA is the best Ix currently to show labral tears

management

hip_labral_tear.txt · Last modified: 2014/10/24 03:08 by 127.0.0.1

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