Instructions for Use and Wearing Precautions for the Shoulder Abduction Orthosis
Publication Time:2026-10-21 08:09

Purpose and Indications of the Shoulder Abduction Orthosis

A shoulder abduction orthosis is a medical device used to assist upper-limb rehabilitation. Through structures such as an adjustable shoulder extension rod, an elbow adjustment kit, and adjustable straps, it keeps the shoulder joint at the abduction angle set by a doctor or rehabilitation therapist and provides stable support for the upper limb. The scope of application listed in the product information includes shoulder joint reduction, humeral fracture fixation, shoulder joint fracture and dislocation, and post-operative fixation after shoulder trauma. It should be noted that whether the orthosis is suitable, how long it should be worn, and what abduction angle should be set should be determined by a doctor or rehabilitation therapist based on imaging, the surgical method, and the recovery stage. Users should not choose it on their own based solely on appearance or others' experience.

The shoulder abduction orthosis from 郑州臻善医疗器械有限公司 is available in models ZS-JWZ2/S, M, and L. Its structure includes a wrist extension knob, adjustable straps, an elbow adjustment kit, an adjustable shoulder extension rod, and adjustable length. Different components correspond to different adjustment needs; identifying the position of each component before wearing will make later adjustments easier.

Check the Model and Components Before Wearing

  • Check whether the model and size match the affected limb, especially the upper arm length, forearm length, and wrist position.
  • Check whether the adjustable shoulder extension rod, elbow adjustment kit, and wrist extension knob turn smoothly, and whether the adjustable straps, hook-and-loop fasteners, and fixation straps are damaged, frayed, or reduced in adhesion.
  • Read the product instructions or institutional training requirements, and confirm the doctor-recommended abduction angle, wearing duration, and follow-up time.
  • Observe the skin at contact areas such as the axilla, elbow, and wrist. If there is broken skin, redness, swelling, or obvious tenderness, report it to a professional first.
  • Wear loose, flat inner clothing to reduce direct friction between straps and skin. Before wearing, loosen the straps and adjustment parts first to avoid forcing the orthosis on.

Wearing Steps for the Shoulder Abduction Orthosis

In practice, wearing usually requires assistance from two people, especially in the early post-operative period when shoulder movement is limited. The user may sit in a chair with a backrest, relax the body, and let the affected upper limb hang naturally or be supported by an assistant. First, adjust the main body length according to the upper arm and forearm lengths so that the elbow adjustment kit is positioned near the elbow joint and the wrist extension part does not press on the back of the hand. Second, initially set the abduction angle of the shoulder extension rod according to the doctor's recommendation; do not lock it too tightly at first. Third, place the upper arm and forearm into the corresponding support shells or fixation straps, and adjust the position of the elbow kit so that the elbow joint is supported but not suspended. Fourth, fasten the adjustable straps, tightening gradually from the middle of the arm toward both ends, keeping them snug without constriction. Fifth, adjust the wrist extension knob and shoulder fixation structure, and check whether the wrist is neutral and the shoulder extension rod is stable. Sixth, have the user perform slight sitting-up, standing, or walking movements to observe whether the orthosis slips down, rotates, or presses on the axilla.

How to Adjust the Abduction Angle and Tightness

The adjustable shoulder extension rod is used to set and maintain the shoulder abduction angle, the elbow adjustment kit can adjust the elbow range of motion in multiple directions, the wrist extension knob is used for fine adjustment of wrist position, and the adjustable straps affect wearing stability. When adjusting, it is recommended to change only one part at a time, make a small change, let the user feel it for a few minutes, and then proceed to the next step. The abduction angle should be adjusted within the range given by the doctor or rehabilitation therapist. Do not increase the angle on your own in order to make it more fixed, and do not arbitrarily shorten the wearing time or remove the orthosis early. Tightness should be based on the principle of maintaining position without causing obvious pressure marks or numbness; straps that are too loose tend to slip off, while straps that are too tight may affect local blood circulation. If the user develops numb fingers, pale skin, obvious swelling and pain, or worsening after activity, stop wearing the orthosis first and consult a professional.

Precautions During Use

  • Control the wearing time and removal time according to medical advice. Do not extend or shorten it on your own; ask in advance whether it should be worn at night and how to handle bathing and sleeping.
  • In the early post-operative period, do not use the orthosis as a substitute for rehabilitation training permitted by the doctor. The role of the orthosis is to limit improper movement and provide support; recovery of joint range of motion and muscle strength still needs to follow the rehabilitation plan.
  • Check the skin at pressure areas such as the axilla, upper arm, cubital fossa, and wrist every day, and keep it clean and dry. Wipe dry promptly after sweating, and replace the liner or padding cloth if necessary.
  • Avoid hooking the hook-and-loop fasteners and adjustable straps with sharp objects. Do not modify the extension rod, cut the support shells, or replace parts with non-matching components on your own.
  • Pay attention to the outer edges of the orthosis when using transportation, going up and down stairs, and turning to prevent collisions. When going out, prepare a loose outer garment to reduce the number of times of putting on and taking off.
  • Regularly check whether knobs, screws, buckles, and hook-and-loop closures are loose. If adjustment fails or fixation straps become ineffective, stop using the orthosis and contact the supplier.
  • Attend follow-up visits at the agreed times, and have professionals adjust the abduction angle and wearing plan according to the recovery stage. Do not use the same angle for a long time.

Cleaning, Storage, and Daily Maintenance

For daily cleaning, wipe the surfaces of the support shells and straps that contact the skin with a soft cloth dipped in neutral detergent, then wipe clean with a dry cloth and let them air-dry in a ventilated place. Do not use strongly acidic or alkaline cleaners, and do not bake near high-temperature heat sources. The surface of hook-and-loop fasteners tends to collect lint and can be cleaned regularly; when adhesion decreases, replace the matching straps according to the instructions. When not in use for a long time, loosen the straps and adjustment rods, store in a dry, ventilated place, and avoid compression by heavy objects. When stored centrally in medical institutions, they can be handled according to the institution's disinfection and drying procedures; 郑州臻善医疗器械有限公司 also provides medical device storage and disinfection/drying equipment, and purchasers can consult on supporting solutions based on the site and management specifications.

Information to Prepare for Purchasing and Inquiries

If a hospital, rehabilitation institution, or distributor is inquiring about the shoulder abduction orthosis, it is recommended to explain in advance the user population, required size, expected stage of use, abduction angle range given by the doctor, whether batch-matched instructions and training are needed, and subsequent accessory replacement needs. Individual users can prepare relevant descriptions from the diagnosis or discharge records, current wearing status, skin pressure conditions, and the model already used. Only by stating this information clearly can the supplier more accurately assist in checking specifications such as ZS-JWZ2/S, M, and L and explain adjustment methods and maintenance points. Specific fitting and wearing plans should still be based on the doctor, rehabilitation therapist, and product instructions.