Use of Orthoses for Tendonitis: Why They Help

Tendonitis can make routine activities such as gripping, lifting, typing, texting, or opening containers painful and difficult. In many cases, symptoms develop when a tendon is repeatedly stressed or irritated and does not have enough time to recover. When this happens, continued use of the hand, wrist, or elbow can keep the tendon irritated and delay improvement.

One treatment option commonly used in hand therapy is an orthosis, also commonly referred to as a splint or brace. For tendonitis, an orthosis is used to support the involved area, reduce strain on the irritated tendon, and allow symptoms to calm down while healing occurs.

What Is Tendonitis?

Tendons connect muscles to bones and allow the body to move. When a tendon becomes irritated from repetitive use, overloading, poor positioning, or a sudden increase in activity, it may become painful, tender, and sensitive with movement. Although the term “tendonitis” is commonly used, some tendon conditions involve irritation and tissue changes rather than inflammation alone.

In the upper extremity, tendon irritation can affect the hand, wrist, thumb, fingers, forearm, or elbow. Symptoms often depend on which tendon is involved. A person may notice pain with gripping, pinching, lifting, wrist motion, thumb motion, or repeated hand use.

Common examples include:

• De Quervain’s tenosynovitis
• Wrist tendonitis
• Trigger finger
• Tennis elbow
• Golfer’s elbow
• Thumb or finger tendon irritation

How an Orthosis Can Help

An orthosis helps by limiting or modifying the movements that place stress on the irritated tendon. By positioning the involved joints in a more supported position, the tendon does not have to work as hard during daily activity.

For example, a person with thumb-sided wrist pain may benefit from a thumb orthosis that limits painful thumb and wrist motion. A person with wrist tendonitis may benefit from a wrist orthosis that keeps the wrist in a more neutral position while performing daily tasks.

Orthoses may help by:

• Reducing stress on the involved tendon
• Limiting painful motion
• Supporting improved joint positioning
• Decreasing strain during daily activities
• Protecting the tendon during a flare-up
• Allowing functional use with less discomfort

The purpose is not simply to immobilize the hand or wrist. Instead, the orthosis provides support while the tendon recovers and while the patient gradually returns to activity.

Why the Wear Schedule Matters

Orthosis use should be guided by the diagnosis, symptom severity, stage of healing, and the patient’s daily activities. Some tendon conditions require more protection early on, especially when symptoms are easily aggravated. Other conditions benefit from controlled motion and gradual strengthening.

Wearing an orthosis too much without a plan may contribute to stiffness or weakness. Wearing it too little may allow the tendon to remain irritated. A therapist helps determine when the orthosis should be worn and when movement should be encouraged.

Depending on the condition, an orthosis may be recommended:

• During painful activities
• At night
• During work or school tasks
• During short-term flare-ups
• More consistently at first, then gradually reduced as symptoms improve

The goal is to reduce irritation while still maintaining safe and appropriate use of the hand.

Orthoses as Part of a Larger Treatment Plan

An orthosis can be an important part of treatment, but it is rarely the only intervention needed. Tendonitis often improves best when the contributing factors are also addressed. This may include activity modification, posture changes, ergonomic adjustments, strengthening, or gradual return to activity.

Hand therapy treatment may include:

• Education on activity modification
• Positioning and ergonomic recommendations
• Gentle stretching when appropriate
• Progressive strengthening
• Manual therapy
• Edema or inflammation management
• Home exercises
• Guidance for returning to daily or work tasks

For many patients, the orthosis helps reduce symptoms during daily use, while therapy addresses the underlying movement patterns, weakness, or overuse that may be contributing to the problem.

Importance of Proper Fit

A properly fitting orthosis should feel supportive without causing increased pain or skin irritation. If an orthosis is too tight, it may cause pressure, redness, numbness, or tingling. If it is too loose, it may not provide enough support to be effective.

Patients should contact their therapist if they notice:

• Redness that does not fade after removing the orthosis
• Numbness or tingling
• Increased pain while wearing the orthosis
• Skin rubbing or pressure areas
• The orthosis sliding or not staying in place
• Difficulty completing daily activities safely

Often, small adjustments can improve comfort, fit, and effectiveness.

When to see a patient with tendinitis

A patient may benefit from seeing a hand therapist or medical provider if tendon pain is not improving, continues to return, or begins to limit daily activities. Early treatment can help reduce irritation before symptoms become more persistent.

A hand therapist can help determine whether an orthosis is appropriate, what type of orthosis is needed, and how often it should be worn. The therapist can also provide exercises and activity modifications to support recovery and reduce the risk of symptoms returning.

Why this is Key

Orthoses can be helpful for tendonitis because they reduce stress on irritated tendons and support the hand, wrist, thumb, fingers, or elbow during recovery. They are most effective when they fit properly, are worn according to an appropriate schedule, and are used as part of a complete therapy plan.

The overall goal is to decrease pain, protect the involved tendon, and help the patient return to daily activities with improved comfort and function.