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Rugmedisch Centrum Fysiotherapie

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Complaint

AC joint osteoarthritis

In short

Osteoarthritis or injury of the acromioclavicular joint (AC joint) is a common shoulder condition. It causes pain and discomfort during daily activities.

The acromion is the part of the shoulder blade that forms the roof of the shoulder joint. The scapula hinges at the front of the shoulder with the collarbone. When lying on the shoulder, this joint comes under tension.

On this page5
  1. How does it arise?
  2. What are the symptoms?
  3. Treatment
  4. What prolotherapy does
  5. Recognizable symptoms

How does it arise?

The condition is usually caused by an accident or heavy use of the shoulder. A classic example is the young weightlifter who hurts the AC joint while bench pressing. Left untreated, pain in the affected joint can persist for years after the overload.

What are the symptoms?

  • Pain in front of and on the shoulder
  • Increased pain when the arm is held across the chest because the movement puts tension on the joint
  • No longer being able to lie on the shoulder
  • Complaints about overhead work
  • A visible and palpable swelling on the shoulder, because the joint is located just under the skin

Treatment

In simple cases, an injection with a pain-relieving anti-inflammatory often has a good effect. After this injection, we recommend slowly building up activities to the old level. A series of injections is often required.

In case of instability of the AC joint (with piano key phenomenon), we choose to strengthen the stabilizing ligaments with prolotherapy.

What prolotherapy does

Prolotherapy stimulates the body to heal painful areas. The treatment provokes a body's own healing response in the ligaments around the joint. This response causes the body to heal the damaged ligaments. Prolotherapy has a restorative effect on the injury, provided you are eligible for the treatment.

Once the ligaments of the AC joint become stronger, the stability of the joint improves. A stabilized AC joint is less prone to injury and can tolerate more strain during work or sports. We also recommend this treatment for active patients who do not want to put less strain on their shoulder professionally or as a hobby.

Recognizable symptoms

  • Pain in front and on top of the shoulder
  • More pain when you hold the arm across the chest
  • No longer being able to lie on the shoulder
  • Complaints about work above your head
  • A visible and palpable swelling on the shoulder

Appropriate treatments

We use these treatments for this purpose.

Responsible practitioner

Arthur Mulder

Physical Therapist and Registered Chiropractor (D.C.)

Registered in the Register of Chiropractor as A.R. Mulder DC and affiliated with the Dutch Chiropractic Federation. Oversees chiropractic care in Rotterdam and is co-founder of SportManipulation, which provides training for physiotherapists and sports masseurs.

Last updated on

Our working area

Location Rotterdam

Cor Kieboomplein 227, 3077 MK Rotterdam

010-411 27 63

Also for patients from Rotterdam-Zuid, IJsselmonde, Charlois, Hoogvliet, Ridderkerk, Barendrecht, Capelle aan den IJssel, Krimpen aan den IJssel, Spijkenisse, Schiedam, Vlaardingen and Albrandswaard.

Location Dordrecht

Overkampweg 381, 3318 AR Dordrecht
doktermulder.nl

078-645 48 90

Also for patients from Dordrecht, Zwijndrecht, Papendrecht, Hendrik-Ido-Ambacht, Sliedrecht, Alblasserdam, 's-Gravendeel, Strijen, Oud-Beijerland, Gorinchem and Werkendam.

Ready to get rid of your complaints?

No referral needed — make an appointment straight away.

What does your insurer reimburse?

Choose your insurer and your additional package. You will immediately see what chiropractic care is reimbursed.

Good to know

  • From the supplementary insurance, so not from your deductible.
  • No GP referral required.
  • You will receive an invoice with everything your insurer needs.

Source: chiropractievergoeding.nl, policy year 2026 (version 1.0 — 21-11-2025). This is an indication; your own policy always takes precedence.