Table 2

Summary of included intervention studies

Author, yearFAIS groupCriteriaSampleInterventionFollow-up periodControlsSampleComparabilityTasksReported differences in hip and pelvic kinematics and joint torques
FAIS typeCriteria
Brisson et al, 201323 Unilateral cam only
7 men
Age 29.9 (7.2)
Surgery (4 open, 6 combined)Mean=21.1 (9.4) Range 10–32 monthsNRn=13
8 men
Age 34.2 (9.9)
Walking Pre-operative versus post-operative
No reported differences
Pre-operative versus controls
Patients with FAIS walked with:
  • Less total frontal plane ROM

Lamontagne et al, 201135 Unilateral cam only
  • Aged 18–50 years old

  • Positive impingement test

  • Unilateral hip pain

  • No signs of OA, combined FAIS or pincer

  • α>50° (AP and Dunne X-ray)

7 men
Age 29 (7.2)
Surgery (open and combined)Range 8–32 monthsWalking Pre-operative versus post-operative
No reported differences
Rylander et al, 201312 Cam, pincer and combined FAIS
  • Positive impingement and labral stress test

  • No other lower limb, spine or back problems

  • α>54° (MRI, cross-table lateral and AP X-ray) OR

  • CEA>35° (MRI, cross-table lateral and AP X-ray)

12 men
Age 35.4 (8.9)
Surgery (labrectomy or labral repair; +/−microfracture)12 months
  • Self-reported lack of hip pain

  • No lower limb injury history

12 men
Age 34.9 (9.7)
Pre-operative versus post-operative
Walk: Post-operatively participants walked with:
  • Greater hip sagittal and transverse plane ROM and greater peak hip flexion, and internal rotation angle

Stairs: No reported differences
Pre-operative versus controls
Walk: FAIS group walked with:
  • Less total sagittal, frontal and transverse plane ROM

  • Smaller peak hip flexion, abduction and IR angle

Stairs: FAIS group ascended stairs with:
  • Less total sagittal plane ROM

  • Smaller peak hip extension and IR angle

  • Larger peak pelvic tilt

  • Larger total pelvic rotation ROM

  • Age reported as means (SD).

  • AP, anterior-posterior; BMI, body mass index; CEA, centre edge angle; FAIS, femoroacetabular impingement syndrome; IR, internal rotation; NR, not reported; OA osteoarthritis; ROM, range of motion; α, alpha angle.