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Table 2 The gluteal muscle contracture disability (GD) scale [2]*

From: Clinical results of arthroscopic tight fibrous band release for adult moderate-to-severe gluteal fibrosis using anterior and posterior portals: a retrospective analysis of 118 consecutive cases

Item Score Item Score
1. Walk with a toe-out gait   8. Hip fatigue  
 Very serious, affecting walking 1 ·Obvious during daily activities 1
 Obvious, affecting sporting exercises 4 ·Yes, during regular exercises 2
 Only a slight gait change 7 ·Yes, during intensive exercises or long-time squatting 3
 No gait change 10 ·No hip fatigue 4
2. Ability to cross or overlap the legs   9. Hip friction or pain  
 Unable 1 ·Very serious during daily activities 1
 The ankle can just reach the opposite knee 4 ·Yes, during regular exercises 2
 The lower leg can reach the opposite knee 7 ·Yes, during intensive exercises or long-time squatting 3
 Normal 10 ·No hip friction or pain 4
3. Ability to crouch with the knees close to each other   10. Upright sitting posture  
 Unable 1 ·The upper body cannot stay upright 0
 Restricted, able to crouch on tiptoes 4 ·The upper body can stay upright, but the knees cannot bring together 2
 Able to crouch in great effort with both feet fully landing on the floor and close to each other 7 ·The upper body can stay upright with the knees bringing together 6
 Unrestricted 10 11. Whether or not the knees can bring together when the patient is in a lateral position with the legs extended?  
4. Snapping hip   ·No 0
 Yes, during walking 1 ·Yes 10
 Yes, during Squatting 4 12. Whether or not the ankles can cross over when the patient is in a supine position with the legs extended and crossed over?  
 Yes, during hip flexion, internal rotation and adduction 7 ·Yes 0
 No 10 ·No 10
5. Buttock shape   13. Whether or not running is affected?  
 Sharp buttocks 1 ·Yes 0
 Flat buttocks 4 ·No 2
 Slight atrophy of buttocks 6 14. Whether or not standing long jump can be completed?  
 Normal 8 ·Complete with difficulties 0
6. Whether or not the buttock skin has dimples, depressions and deep grooves?   ·Yes 2
 Obvious deep groove was observed at any position of the buttock 1 15. Whether or not the hurdling action is affected?  
 Depression was observed at hip flexion and adduction 4 ·Severely affected 1
 Yes, during crouching with the knees close to each other 6 ·Moderately affected 2
 No 8 ·Mildly affected 3
7. Any restriction while climbing up or down stairs?   ·Not affected 4
 Yes 0   
 No 2