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Table 2 Musculoskeletal abnormalities detected by pGALS (number of abnormal observations to total observations)

From: Assessment of musculoskeletal abnormalities in children with mucopolysaccharidoses using pGALS

Manoeuvre tested

pGALS instruction

All MPS (n = 18 patients) 1203 total observations

MPS I (n = 13)

MPS II (n = 4)

Mannosidosis (n = 1)

Shoulder abduction, external rotation

Hands behind neck

49/54 (91%)

35/39 (90%)

12/12 (100%)

2/3 (67%)

Shoulder flexion

Reach arms up

48/54 (89%)

36/39 (93%)

12/12 (100%)

0/3 (0%)

Wrist flexion

Hands together back to back

41/54 (76%)

27/39 (69%)

12/12 (100%)

2/3 (67%)

Elbow extension

Reach up

39/53 (74%)

26/39 (90%)

12/12 (100%)

1/2 (50%)

TMJ excursion

Open mouth wide and try to put 3 fingers inside

39/54 (72%)

28/39 (72%)

10/12 (83%)

1/3 (33%)

MCP, DIP, PIP extension

Hands and wrists together

37/54 (69%)

24/39 (62%)

11/12 (92%)

2/3 (67%)

Forward flexion of spine

Bend forwards. Observe curvature of spine from all sides

31/50 (62%)

21/35 (60%)

8/12 (67%)

2/3 (67%)

Spinal deformity

Observe patient standing and then bending forwards

28/45 (62%)

22/34 (65%)

5/9 (56%)

1/2 (50%)

Gait

Observe patient walking

28/45 (62%)

20/32 (63%)

7/10 (70%)

1/3 (33%)

Wrist extension

Hands palm to palm

33/53 (60%)

22/39 (56%)

11/11 (100%)

0/3 (0%)

MCP/DIP/PIP extension

Hands out in front

29/52 (56%)

17/37 (46%)

12/12 (100%)

0/3 (0%)

Cervical spine lateral flexion

Touch ear to shoulder

29/53 (55%)

17/38 (45%)

12/12 (100%)

0/3 (0%)

Elbow extension

Hands out in front

22/40 (55%)

12/27 (44%)

9/11 (82%)

1/2 (50%)

Ankle dorsiflexion

Walk on heels

24/45 (53%)

15/33 (45%)

7/9 (78%)

2/3 (67%)

Neck extension

Look up to the ceiling

28/53 (53%)

19/38 (50%)

9/12 (75%)

0/3 (0%)

Forearm supination

Turn hand over

20/42 (48%)

10/30 (33%)

9/11 (82%)

1/1 (100%)

Opposition of thumb and 3 rd -5 th fingers

Touch tips of fingers with thumb

23/54 (43%)

14/39 (36%)

8/12 (67%)

1/3 (33%)

MCP/DIP/PIP flexion

Make a fist

20/54 (37%)

10/39 (26%)

10/12 (83%)

0/3 (0%)

Elbow flexion

Put hands behind neck

12/42 (29%)

6/27 (33%)

5/12 (42%)

1/3 (33%)

Knee extension

Bring ankle up to bottom

12/44 (27%)

7/29 (24%)

4/12 (33%)

1/3 (33%)

Knee flexion

11/45 (24%)

4/30 (13%)

7/12 (58%)

0/3 (0%)

Opposition of thumb and index finger

Touch tip of finger with thumb

10/54 (19%)

5/39 (13%)

5/12 (42%)

0/3 (0%)

Elbow flexion

Put hands and wrists together

7/53 (13%)

5/39 (13%)

2/11 (18%)

0/3 (0%)

Ankle plantar flexion

Walk on tip-toes

4/45 (9%)

2/33 (6%)

2/9 (22%)

0/3 (0%)

  1. Key: DIP = distal interphalangeal; MCP = metacarpophalangeal; PIP = proximal interphalangeal; pGALS = paediatric Gait, Arms, Legs and Spine; TMJ = temporomandibular joint.