Frozen Shoulder Treatment in Oakville: What Actually Works

First, what is frozen shoulder?

Frozen shoulder — known medically as adhesive capsulitis — is a condition where the connective tissue capsule around your shoulder joint becomes inflamed, thickens, and tightens. The shoulder gets progressively more painful and stiff. In its worst phase, you can't reach behind your back, lift your arm above shoulder height, or sleep on the affected side.

It progresses through three phases:

• Freezing phase (2–9 months) — increasing pain and stiffness, often worse at night.
• Frozen phase (4–12 months) — pain may ease, but stiffness dominates. Range of motion is severely limited.
• Thawing phase (6 months – 2 years) — gradual return of motion.

Without treatment, frozen shoulder usually resolves on its own — but the full cycle can take 1 to 3 years. That's a long time to live with significant pain and disability. Treatment can meaningfully shorten that.

The treatment hierarchy — what the evidence supports

1. Cortisone injection + structured physiotherapy (first-line)

For the painful freezing phase, the strongest evidence supports intra-articular cortisone injection combined with a structured physiotherapy program. The American Academy of Orthopaedic Surgeons (AAOS) and Johns Hopkins Medicine both list this as standard care. Cortisone reduces capsule inflammation, which controls pain enough that physiotherapy can actually progress.

At our clinic, we deliver shoulder cortisone injections under live ultrasound guidance, which improves both safety and accuracy compared with anatomical-landmark injection.

2. Hydrodilatation (second-line)

If cortisone plus physiotherapy hasn't produced enough improvement, the next step is often hydrodilatation — an ultrasound-guided injection that distends the joint capsule with a mixture of saline, local anesthetic and steroid. The volume of fluid physically stretches the tight capsule.

A 2023 systematic review and meta-analysis found hydrodilatation produces significant short- and medium-term improvements in both pain and range of motion, particularly when combined with physiotherapy.

3. PRP — emerging option, not first-line

Platelet-rich plasma (PRP) for frozen shoulder is an active area of research. A 2022 randomized controlled trial suggested intra-articular PRP can improve pain and shoulder function in adhesive capsulitis. The evidence base is smaller than for cortisone or hydrodilatation, so we don't recommend PRP as first-line for most frozen-shoulder patients. But it's a reasonable option to consider when:

• You've already had cortisone and want to avoid more.
• You're diabetic and tolerate cortisone poorly (it can spike blood sugar).
• Your physician believes your specific clinical picture supports a regenerative approach.

4. Surgery — last resort

Manipulation under anesthesia or arthroscopic capsular release are reserved for refractory cases — typically after 6–12 months of non-surgical treatment without adequate improvement. Most patients never need surgery. We'd refer you to an orthopaedic surgeon if surgical evaluation became appropriate.

The non-negotiable: structured physiotherapy

Whatever injection you receive, physiotherapy is essential. Injections control pain and reduce capsule inflammation; physiotherapy actually restores range of motion. There's no injection that replaces the structured stretching and strengthening that's the backbone of frozen shoulder recovery. We coordinate directly with your physiotherapist so the timing of injections and rehab work together.

If you're diabetic, this matters more

Diabetes is a major risk factor for frozen shoulder, and frozen shoulder in diabetics tends to be more severe and slower to resolve. Diabetic patients also tend to respond less robustly to cortisone, and cortisone can affect blood sugar — we monitor and discuss alternatives like hydrodilatation or PRP earlier in those cases. Tight glycemic control is part of the treatment plan.

What to do next

If your shoulder has been stiff and painful for more than a few weeks — particularly if you can't reach behind your back, can't sleep on it, and the pain gets worse rather than better with rest — get assessed. Frozen shoulder responds far better to treatment in the early phases than after months of letting it run its course.

At Oakville Pain Clinic we offer self-referrals — no GP letter required. Book online or call 647-910-5359 and our team will reach out within 24 hours.