Common shoulder surgery does not offer benefit to the patient
The Finnish FIMPACT trial (Finnish Subacromial Impingement Arthroscopy Controlled Trial) has in a follow-up of ten years shown that surgery does not offer any benefit compared to other forms of treatment. According to studies, decompression surgery (arthroscopic subacromial decompression, ASD), which has long been used in the treatment of shoulder pain, does not reduce the pain or improve functional capacity or the quality of life when compared to placebo surgery or intensified physiotherapy.

Subacromial pain has traditionally been considered to be caused by tightness of the space underneath the acromion. Over the decades, the decompression surgery developed on the basis of this theory became one of the most common orthopedic procedures. Although research evidence has repeatedly questioned the effectiveness of the surgery, it continues to be offered to patients with prolonged pain.
Arthroscopic subacromial decompression does not bring benefits
In the trial, 189 patients were randomized into three groups: decompression surgery, placebo surgery and intensified physiotherapy. In the 10-year follow-up, the results remained the same as at two and five years from surgery: all groups recovered equally well, but the decompression did not bring any additional benefit.
“FIMPACT is the only trial in the world, in which the long-term effects of arthroscopic acromial decompression have been assessed in a placebo-surgery setup. The results are clear and this widely used procedure is not an effective form of treatment.” says Associate Professor Mika Paavola, Specialist in Orthopedics and Traumatology.
According to the study, almost all patients recovered, but recovery occurred regardless of whether the form of treatment was decompression surgery, a placebo procedure or physiotherapy.
Impact on treatment practices and costs
“There has been a dramatic drop in the number of ASDs in Finland: in the peak year 2012, about 7,600 procedures were performed and in 2023, only fewer than 600. This has saved up to more than EUR 250 million and, above all, reduced unnecessary surgeries and sick leaves. The estimate of cost savings is based on the calculation method used in international research,” says Specialist in Orthopedics and Traumatology Kari Kanto, MD, from the FICEBO research group of the University of Helsinki.
Link to research article: Arthroscopic subacromial decompression for subacromial pain syndrome | The BMJ
In a university hospital, research is part of the treatment: we continuously evaluate and develop care based on scientific research evidence and patient experience. At HUS, we conduct close research collaboration with the Faculty of Medicine at the University of Helsinki. We publish approximately 2,400 peer-reviewed research articles) annually, which we highlight in our newsfeed.
The HUS media service is available for the media Mon–Thu 10:00 a.m.–4:00 p.m. and Fri 10:00 a.m.–3:00 p.m., tel. 050 427 2875, or via e-mail: viestinta@hus.fi.
Keywords
Contacts
Mika PaavolaDirector of Musculoskeletal and Plastic Surgery, Associate Professor, Specialist in Orthopedics and Traumatology, HUS
Tel:+358 50 523 8382mika.paavola@hus.fiKari KantoMD, Specialist in Orthopedics and Traumatology, FICEBO research group
Tel:+358 50 521 0334kari.kanto@fimnet.fiAbout HUS
HUS Helsinki University Hospital is the biggest provider of specialized healthcare in Finland. Our high expertise is internationally recognized and accredited. As a university hospital, we are on the cutting edge of developing and evaluating our treatment methods and activities.
HUS treats almost 700,000 patients every year. Our more than 27,000 professionals work to provide the best possible care for our patients. We are responsible for organizing specialized health care in the Uusimaa region. The treatment of many rare and difficult diseases in Finland has been centralized to HUS as well.
HUS – Leading healthcare
The HUS media service is available for the media Mon–Thu 10:00 a.m.–4:00 p.m. and Fri 10:00 a.m.–3:00 p.m., tel. 050 427 2875, or via e-mail: viestinta@hus.fi.
hus.fi/en
Alternative languages
Subscribe to releases from HUS
Subscribe to all the latest releases from HUS by registering your e-mail address below. You can unsubscribe at any time.
Latest releases from HUS
HUS-sammanslutningens styrelse sammanträder den 15 december11.12.2025 15:14:06 EET | Pressmeddelande
HUS-sammanslutningens styrelse behandlar på sitt möte den 15 december verksamheten och ekonomin i januari–oktober 2025 samt den sista årsprognosen för 2025. Sammanslutningens styrelse ska också behandla HUS långsiktig plan för fastigheter och verksamhetslokaler samt utvecklingen av Kirurgiska sjukhusets fastighet. Föredragningslistan för mötet finns här. Sammanslutningens styrelse leder HUS verksamhet, förvaltning och ekonomi. Sammanslutningens styrelse har 17 ledamöter och av dem är två företrädare för Helsingfors universitet. Sammanslutningens styrelse sammanträder cirka en gång per månad. HUS medietjänst betjänar medier måndag–torsdag kl. 10–16, fredag kl. 10–15 på numret 050 427 2875 eller per e-post på viestinta@hus.fi. Se avvikande öppettider.
HUSin yhtymähallitus kokoontuu 15.12.11.12.2025 15:14:06 EET | Tiedote
HUSin yhtymähallitus käsittelee 15.12. kokouksessaan tammi−lokakuun 2025 toimintaa ja taloutta sekä vuoden 2025 viimeistä vuosiennustetta. Yhtymähallituksen käsiteltäväksi tulee myös HUSin kiinteistöjen ja toimitilojen pitkän aikavälin suunnitelma sekä Kirurgisen sairaalan kiinteistön kehittäminen. Kokouksen esityslistan voi lukea täältä. Yhtymähallitus johtaa HUSin toimintaa, hallintoa ja taloutta. Yhtymähallituksessa on 17 jäsentä, joista kaksi on Helsingin yliopiston edustajia. Yhtymähallitus kokoontuu noin kerran kuukaudessa. HUSin mediapalvelu palvelee mediaa ma–to klo 10–16, pe klo 10–15 numerossa 050 427 2875 tai sähköpostitse viestinta@hus.fi. Katso poikkeusaukioloajat
Antalet fall av svår fästingburen hjärninflammation ökar – allt fler vårdas på sjukhus3.12.2025 10:03:20 EET | Pressmeddelande
Antalet fall av fästingburen hjärninflammation, det vill säga TBE är ökat betydligt från i fjol. Ökningen syns på HUS jourer, neurologiska avdelningarna samt också på intensivvårds- och intensivövervakningsavdelningarna. Fästingburen hjärninflammation har gått förbi herpesviruset som bidragande orsak till svåra hjärninflammationer.
Vaikea puutiaisaivotulehdus lisääntyy – yhä useampi joutui sairaalahoitoon3.12.2025 10:03:20 EET | Tiedote
Puutiaisaivotulehdusten (TBE) määrä on kasvanut selvästi viime vuodesta. Kasvu on näkynyt HUSissa päivystyksissä, neurologian osastoilla ja teho- ja tehovalvontaosastoilla. Puutiaisaivokuume on ohittanut herpesviruksen vaikeiden aivokuumeiden aiheuttajana.
Tick-borne encephalitis more common: number of hospitalized patients increased3.12.2025 10:03:20 EET | Press release
The number of tick-borne encephalitis cases (TBE) has clearly increased from last year. The increase has been evident at HUS emergency departments, on neurology wards, as well as on intensive and intermediate care units. TBE has surpassed herpesvirus as a leading cause of severe encephalitis.
In our pressroom you can read all our latest releases, find our press contacts, images, documents and other relevant information about us.
Visit our pressroom