technical information 3.3.1. - ing · pdf filethe orthosis is fixed on the patient using the...

TECHNICAL INFORMATION 3.3.1.

Modular Arm Abduction Orthosis

T e c h n i c a l D e s c r i p t i o n a n d I n s t r u c t i o n s

ING-TI-3.3.1-2004/1

www.ingcorporation.cz 3

Technical Information 3.3.1. Modular Arm Abduction Othosis

1. INTRODUCTION AND TECHNICAL DESCRIPTION 1.1. PRODUCT NAME

DA Modular Arm Abduction Orthosis

1.3. TECHNICAL DESCRIPTION

The orthosis consists of length-adjustable trunk (4), upper arm (3) and forearm (1), (2) bars. Pelvic (6) and thoracic (5) band are attached to the trunk bar. Upper arm (8) and forearm (7) rests are attached to the arm bars. Modules are assembled using the set of screws and bolts (10). The orthosis is fixed on the patient using the set of straps (9).

The Modular Arm Abduction Orthosis of the universal size is available suitable both for left and right sided applications.

1.2. RANGE OF APPLICATION

Modular Arm Abduction Orthosis is designed for relief and immobilization of the shoulder arm-area espe-cially in the treatment of post-traumatic and postoperative conditions. The orthosis enables the positioning of the upper extremity - the adjustment of the angle of shoulder abduction, the adjustment of the horizontal flexion in shoulder and elbow joints. The Modular Arm Abduction Orthosis is provided as an assembly for individual treatment. The orthosis is prescribed by a medical doctor, fabrication and fitting are performed by the orthotist. Advantages of the orthosis are adjustability at any time and improved wearing comfort (minimal weight, hygienic qualities, mobility of a patient). The orthosis does not ensure the same fixation compared to plaster cast.

1 forearm bar (1) 2 forearm bar (2) 3 upper arm bar 4 trunk bar 5 thoracic band

6 pelvic band 7 forearm rest 8 upper arm rest 9 set of straps 10 set of screws

2. MEASUREMENT

2.1. MEASUREMENTS The ING modular arm abduction orthosis is assembled and adjusted according to the following measurements:

A forearm length (olecranon - mp joint) B upper arm length (axilla - olecranon) C length axilla - trochanter α angle of abduction of shoulder β angle of horizontal flexion of elbow

Pelvic band - shoulder joint 320-400 mm Shoulder joint - elbow joint 190-280 mm Elbow joint- mp joint 310-410 mm Shoulder abduction angle 40 o - 105 o Shoulder horizontal flexion angle 0 o - 90 o Elbow horizontal flexion angle 0 o - 130 o

1

2 3

4

5

6

7 8

9

10

B

C

A

4 ING corporation, spol. s r.o.

Modular Arm Abduction Othosis Technical Information 3.3.1.

2.2. MEASURING PROCEDURE The affected arm of the patient should be kept in prescribed therapeutic position during measuring and application of the orthosis.

Measure the length of the forearm (olecranon to mp joint) - measurement A.

Measure the length of the upper arm (axilla to olecranon) - measurement B.

Measure the trunk length (axilla to trochanter) - measurement C.



Measure the angle of abduction - angle α.

Measure the angle of elbow rotation - angle β.

3. FITTING OF THE ORTHOSIS Fit the thoracic band to patient. The upper edge should be approximately 2-3 cm bellow the axilla.

Fit the pelvic band to patient. The lower edge should be approximately 5 cm above the trochanter. Prevent the pressure effect to the anterior superior iliac spine (A.S.I.S.)!



Attach the thoracic band to the trunk bar. Tighten the screws reliably.

Release the bolts of the trunk bar. The orthosis is ready for the length adjustment of the trunk bar.

Preshape manually trunk bands - if necessary.

Attach the pelvic band to the trunk bar. Tighten the screws reliably.



The length between the outer edges of the trunk bands is equal the measurement C minus 7 cm (measured on the inner surface). Tighten the bolts reliably.

Release the bolts of the upper arm bar. The orthosis is ready for the length adjustment of the upper arm bar.

The length of the upper arm bar is equal the measurement B minus 7 cm (measured between the shoulder joint and elbow one). Tighten the bolts reliably.

The bolts fix the upper arm rest on the upper arm bar. The position of the upper arm rest can be modified. Place the upper arm rest in the distance of 1/3 length of the upper arm bar (measured from the elbow joint).



Release the bolts of the forearm bar. The orthosis is ready for the length adjustment of the forearm bar.

The length of the forearm bar is equal the measurement A (measured between the elbow joint and the edge of the hand rest ). Tighten the bolts reliably.

The bolts fix the forearm rest on the forearm bar. The position of the forearm rest can be modified. Place the forearm rest in the distance of 1/2 length of the forearm bar.

Adjust the horizontal flexion of the shoulder joint. Tighten the screws reliably.



Adjust the angle of abduction using the adjust-ment unit.

Adjust the horizontal flexion of the elbow joint. The fixed value or the limited range of motion can be adjusted in the elbow joint. Tighten the screws reliably.

Measure and check the horizontal flexion of the elbow joint.

Measure and check the angle of abduction.



Place the thoracic strap within the roll guides of the thoracic band and fix it by means of both hook and pile closure.

Place the pelvic strap within the roll guides of the pelvic band and fix it by means of both hook and pile closure.

Place the diagonal strap within the roll guides of the pelvic band over the opposite shoulder and fix it by means of both hook and pile closure.

4. APPLICATION AND FINAL FITTING OF THE ORTHOSIS

4.1. FITTING

Place the orthosis under the arm of the patient and hold the orthesis in the desired position.



Fasten the shoulder strap. This strap is optional.

Fasten the strap of the upper arm rest.

Fasten the strap of the forearm rest.

The orthosis now provides the stability of the shoulder joint and it is ready for fine adjustments.



• adjustment of the upper arm length

• adjustment of the trunk bar length

• adjustment of the angle of abduction

The adjustment sleeve on the threaded rod provides angle adjustment:

Left rotation = increased angle of abduction Right rotation = decreased angle of abduction

4.2. FINE ADJUSTMENTS The final adjustments can be maintained after the preliminary fitting of the orthosis. The following adjustments can be provided:

• adjustment of the forearm length



• adjustment of the horizontal flexion of the shoulder joint

• adjustment of the horizontal flexion of the elbow joint

Rotate the forarm rest if the small angle of abduction is adjusted

Rotated forarm rest enables the patient better fit and support of the forearm Tighten the bolts reliably.



5. CHECK-OUT The following check-out is reccomended:

• positioning and fitting of the pelvic and thoracic band

• positioning and fastening of the straps

• adjustment of the shoulder angle of abduction

• adjustment of the shoulder angle of horizontal flexion

• positioning and fitting of the upper arm rest

• adjustment of the elbow angle of horizontal flexion

• positioning and fitting of the forearm rest



Ventral view of the Arm Abduction Orthosis.

Lateral view of the Arm Abduction Orthosis.

Dorsal view of the Arm Abduction Orthosis.

Diagonal rear view of the Arm Abduction Orthosis.



Sitting in the Arm Abduction Orthosis.

Patient can wear standard clothes using Modular Arm Abduction Orthosis.

ING corporation, spol. s r.o. Dr. Jánského 3238, 738 01 Frýdek-Místek, Czech Republic Tel: +420 558 663 215, fax: +420 558 663 217

technical information 3.3.1. - ing · pdf filethe orthosis is fixed on the patient using the...

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