Woman performing shoulder mobility exercise in Burlington sports therapy clinic

Frozen Shoulder

A shoulder that has slowly lost its range and now hurts deeply at night is often a frozen shoulder. We work with patients through every stage at our Burlington clinic, from the painful freeze through the long thaw.

When the Capsule Tightens Around the Joint

Frozen shoulder, medically called adhesive capsulitis, is a slow tightening of the capsule that surrounds the shoulder joint. The capsule inflames, thickens, and gradually shrinks. The result is a shoulder that loses range in a specific pattern: turning the arm outward and lifting it overhead become restricted, whether you try to move the arm yourself or someone moves it for you.

Time is the biggest variable. Most cases follow a recognizable arc through three or four stages over twelve to thirty months, and patients who understand which stage they are in tend to recover faster than those who push through the wrong phase.

The condition gets confused with other shoulder problems early on because the first sign is usually pain, not stiffness. Our introduction to adhesive capsulitis and treatment options covers the basics; this page picks up from there.

Who Tends to Get a Capsule That Locks Up

A true frozen shoulder is not caused by an injury. The capsule inflames and contracts on its own, and the reasons are not fully understood. What we do know is that certain people are far more likely to develop it than others.

Women in the peri-menopausal and post-menopausal years, who make up the majority of cases
People with diabetes, who are several times more likely to develop it
Thyroid conditions and other hormonal disruptions
A period of shoulder immobilization after an injury or surgery

A previous frozen shoulder on the other side
Cardiac, neurological, or autoimmune conditions in some patients
A minor shoulder injury that triggered the process in a susceptible person
Long periods of reduced shoulder use without an obvious cause

Reading the Loss of Range as a Clinical Signature

The assessment centres on one finding: a real loss of passive external rotation, where the arm cannot be turned outward even when someone else does the moving. That pattern separates frozen shoulder from rotator cuff problems, impingement, and arthritis.

We pair the range check with the story. Frozen shoulder builds up over weeks or months, not days. Patients describe a deepening ache that interrupts sleep, and a slow loss of everyday reach: fastening a bra, reaching into a back pocket, putting on a coat. Many also report neck pain on the same side. The neck is usually compensating for the lost shoulder range and calms down once the shoulder starts moving better.

Imaging plays a supporting role. X-rays rule out arthritis or calcium deposits that can mimic frozen shoulder, and MRI can show capsular thickening when there is doubt, but most cases are diagnosed clinically. We also screen for undiagnosed diabetes and thyroid issues, since managing those supports recovery.

Physiotherapist performing shoulder mobility assessment on patient in Burlington clinic

Matching the Treatment to the Stage

Why Stage Recognition Drives Every Decision

Frozen shoulder rewards patience and stage-appropriate work more than aggressive treatment. The principle that holds throughout is to respect the irritability of the capsule and load the shoulder within the range it will allow.

In the freezing stage, when pain is the dominant feature and range has only begun to drop, the work is mostly pain control and gentle mobility. Manual therapy, soft tissue work, and modalities like laser therapy or acupuncture help during the weeks when sleep is being interrupted. A corticosteroid injection or hydrodilatation procedure from your physician can shorten the painful phase for the right patient. Stretching is kept gentle and pain-free.

In the frozen stage, pain settles but range loss is at its worst. Treatment shifts to progressive joint mobilization, end-range work, and strengthening in the available range. Most patients do well on a home program combining daily mobility work with rotator cuff and shoulder blade strengthening. This is the stage where consistent work over weeks pays off.

In the thawing stage, range returns and focus shifts to rebuilding strength that dropped away through months of reduced use. Progressive resistance training across the rotator cuff, shoulder blade, and full arm gets the shoulder ready for the demands of your life or sport. You can’t go wrong with strong.

Most cases settle within twelve to thirty months. Patients who maintain consistent rehab finish closer to the front of that window; people with diabetes often run longer. Surgical options like manipulation under anaesthesia or capsular release are reserved for cases that have not progressed after a long course of conservative care.

How We Treat Frozen Shoulder in Burlington

Chiropractic Treatment

Our chiropractors apply joint mobilization to the shoulder, shoulder blade, and upper back, since the surrounding regions tighten up as the main joint loses range. Active Release Technique addresses the soft tissue tension that builds around the joint, particularly the rotator cuff, deltoid, and neck musculature. Graston Technique can help with chronic tissue changes in cases that have been hanging on for many months.

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Massage Therapy

Our massage therapists work on the muscle compensation that builds up across the neck, upper back, and shoulder blade as the joint stiffens. Releasing that tension makes sleep easier and helps the rest of the body stop firing as hard to make up for the lost shoulder range. Acupuncture is often added in the painful stages to support pain control and sleep.

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Physiotherapy

Our physiotherapists design a stage-by-stage mobility and strengthening program that adapts as the shoulder moves through freezing, frozen, and thawing. Progressive loading of the rotator cuff and shoulder blade muscles in the available range is the backbone of the plan. Laser therapy supports healing during the painful phase, and we coordinate with your physician when injection or hydrodilatation options are being considered.

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The Arc of a Frozen Shoulder

Knowing which phase you are in changes what the right treatment looks like.

Freezing

Pain becomes the dominant feature, particularly at night and with reaching. Range has only begun to drop. Treatment focuses on calming the joint, supporting sleep, and protecting general mobility without aggravating the inflamed capsule.

Frozen

Pain eases but range is at its worst. Treatment shifts to progressive joint mobilization, end-range work, and strengthening in the available range. Daily home work matters more than the clinic visits at this stage.

Thawing

Range gradually returns. Focus moves to rebuilding the strength that dropped away during the stiff months. Loaded rotator cuff and shoulder blade work form the core of the plan.

Recovered

Range has returned and the capsule is no longer the limiting factor. We test the shoulder under sport, work, and daily-life demands so the strength gains carry forward and the recurrence risk on either side stays low.

Frozen Shoulder: Questions We Hear in the Clinic

These answers reflect the patterns we see in practice. Every shoulder presents differently, and a proper hands-on assessment is the most reliable way to know where you are on the arc.

Helping Burlington patients move better since 2005.

How long does frozen shoulder usually last?

Most cases run twelve to thirty months from start to finish, with significant variation. People with diabetes often run longer. Patients who maintain consistent rehab through the frozen and thawing stages tend to finish closer to the front of that window. Skipping the home work in the middle stages is the most common reason recovery stretches out.

Is the neck pain part of frozen shoulder?

Often yes. When the shoulder loses range, the neck and shoulder blade muscles work overtime to make up the difference. That compensation produces real neck pain on the same side, which is why many of our frozen shoulder patients arrive worried they have two separate problems. The neck usually settles as the shoulder range returns.

Why does frozen shoulder happen?

The exact mechanism is not fully understood. What we do know is that women in the peri-menopausal years, people with diabetes, thyroid conditions, and other hormonal disruptions are at much higher risk. A period of shoulder immobilization after an injury or surgery can also trigger it in someone who is susceptible. In most cases there is no clear cause beyond those risk factors.

Will an injection or hydrodilatation help?

Sometimes, particularly during the painful freezing stage. A corticosteroid injection from your physician can shorten the painful phase for the right patient, and hydrodilatation, where fluid is used to gently stretch the capsule, has reasonable evidence for restoring range in selected cases. We coordinate with your physician when these options are being considered, and we always pair them with active rehab.

Should I be aggressive with stretching?

Not in the freezing stage. Hard stretching through a painful, inflamed capsule tends to ramp up the inflammation and prolong the painful phase. Once the shoulder reaches the frozen stage and pain settles, end-range mobility work becomes the priority. The principle through the whole arc is to load and move the shoulder within the range it will allow, not force it past that range.

Can frozen shoulder come back on the other side?

Yes. Up to one in three patients develop frozen shoulder on the opposite side within a few years of the first one. The risk is higher for patients with diabetes or other hormonal conditions. Maintaining shoulder range and strength after recovery helps reduce the impact if it does start on the other side.