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AOFAS Ankle-Hindfoot ScoreASES Shoulder ScoreConstant-Murley ScoreDASH ScoreFAAM ScoreFRAX ScoreHOOS ScoreHarris Hip ScoreIKDC Knee ScoreKOOS ScoreLysholm Knee ScoreMayo Elbow Performance ScoreNeck Disability IndexOswestry Disability IndexOttawa RulesOxford Knee ScoreQuickDASH ScoreRowe Shoulder Instability ScoreSPADI Shoulder ScoreTegner Activity ScaleUCLA Shoulder ScoreVTE Risk (Caprini)WOMAC Score
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HOOS Score

HOOS Score

Hip Disability & Osteoarthritis Outcome Score

Pain

10 questions

1. Frequency of hip pain

2. Twisting/pivoting on hip

3. Straightening fully

4. Bending fully

5. Walking on flat

6. Going up/down stairs

7. At night in bed

8. Sitting/lying

9. Standing upright

10. Walking on uneven surface

Symptoms

10 questions

11. Swelling in hip

12. Grinding/clicking

13. Catching/hanging

14. Full straightening

15. Full bending

16. Morning stiffness

17. Stiffness after sitting

18. Giving way/buckling

19. Fear of weight bearing

20. Loss of confidence

ADL

17 questions

21. Descending stairs

22. Ascending stairs

23. Rising from sitting

24. Standing

25. Bending to floor

26. Walking on flat

27. Getting in/out car

28. Shopping

29. Putting on socks

30. Rising from bed

31. Taking off socks

32. Lying in bed

33. Getting in/out bath

34. Sitting

35. On/off toilet

36. Heavy duties

37. Light duties

Sport & Rec

5 questions

38. Squatting

39. Running

40. Jumping

41. Twisting

42. Kneeling

Quality of Life

4 questions

43. Awareness of hip problem

44. Modified lifestyle

45. Lack of confidence

46. Overall difficulty

Subscale Scores

Pain100
Symptoms100
ADL100
Sport & Rec100
Quality of Life100
Guidelines & Evidence

Verified

Last Review: 2026-07-17

When to Use

When to Use

Hip disability assessment in young to middle-aged adults
Hip osteoarthritis monitoring
Hip preservation surgery (arthroscopy, PAO) outcomes
Post-THA functional evaluation
Clinical trials for hip interventions

How it Works

Subscales

SubscaleItemsMax Score
Pain1040
Symptoms520
ADL1768
Sport/Rec520
QOL416

Formula

Each subscale: 100 - (Raw / Max) x 100 Higher scores = better hip function

Clinical Pearls

Key Points

MCID: 8-12 points per subscale
Designed as hip-specific adaptation of KOOS
More responsive in younger patients than Harris Hip Score

Next Steps

Clinical Actions

01
Report all 5 subscale scores
02
Compare to normative data
03
Use Sport/Rec subscale for return-to-sport decisions

The Evidence

Primary Reference

Hip disability and osteoarthritis outcome score (HOOS) - validity and responsiveness

Nilsdotter AK et al. • BMC Musculoskeletal Disorders. 2003;4:10

Origins & History

Development

HOOS was developed by the same group that created KOOS, published in 2003.

Last Comprehensive Review: 2026-07-17

In Recent Clinical News

Scanning Medical Journals

No new significant updates or guidelines matching this topic were found today. We will check again soon.