---
title: Operative Versus Non-operative Management of Subacromial Impingement
nct_id: NCT00637013
overall_status: ACTIVE_NOT_RECRUITING
phase: NA
sponsor: Central Finland Hospital District
study_type: INTERVENTIONAL
primary_condition: Subacromial Impingement Syndrome
countries: Finland
canonical_url: "https://parkinsonspathways.com/agent/trials/NCT00637013.md"
clinicaltrials_gov: "https://clinicaltrials.gov/study/NCT00637013"
ct_last_update_post_date: 2024-02-13
last_seen_at: "2026-05-12T06:08:17.614Z"
source: ClinicalTrials.gov (mirrored, no enrichment)
---
# Operative Versus Non-operative Management of Subacromial Impingement

**Official Title:** The Effectiveness and Cost-effectiveness of Operative Versus Non-operative Management of Subacromial Impingement

**NCT ID:** [NCT00637013](https://clinicaltrials.gov/study/NCT00637013)

## Key Facts

- **Status:** ACTIVE_NOT_RECRUITING
- **Phase:** NA
- **Study Type:** INTERVENTIONAL
- **Target Enrollment:** 100
- **Lead Sponsor:** Central Finland Hospital District
- **Collaborators:** Academy of Finland, Oulu University Hospital
- **Conditions:** Subacromial Impingement Syndrome
- **Start Date:** 2008-06
- **Completion Date:** 2027-01
- **CT.gov Last Update:** 2024-02-13

## Brief Summary

The study aims at determining the effectiveness and cost-effectiveness of surgical management of subacromial impingement (including partial tears) compared to conservative treatment. The research setting is prospective, randomised, and controlled.

The aim of the study is to search out evidence based data of indications for subacromial decompression. The investigators also aim at offering patients the most efficient and effective treatment and reduce the number of operations that do not have sufficient effectiveness. The data obtained will facilitate developing guidelines for referrals to a specialist when subacromial impingement is suspected.

The investigators hypothesise that there are subgroups of patients suffering from subacromial impingement that benefit from surgery whereas other subgroups are best treated conservatively.

## Detailed Description

Subgroup analysis:

* age
* sex
* duration of symptoms
* presence of trauma before symptoms
* presence of partial tear
* degenerative findings
* other findings in MRI or arthroscopy
* type of operation
* co-morbidities
* occupation
* pain (VAS)
* objective shoulder function
* activities of daily living

## Eligibility

- **Minimum age:** 35 Years
- **Sex:** ALL
- **Healthy Volunteers:** No

```
Inclusion Criteria:

* age over 35 years old
* duration of symptoms at least three months despite non-operative treatment
* accepts both treatment options (operative and physical therapy)
* must have pain in abduction of the shoulder
* must have painful arc
* must have pain in two of the three isometric tests (0 and 30 degrees of abduction, or external rotation)
* a positive result in the impingement test (a subacromial injection of lidocaine reduces pain)

Exclusion Criteria:

* previous shoulder operations
* too high risk for operation
* any disease or social problem reducing the ability to co-operate
* rheumatoid arthritis
* severe arthrosis of the glenohumeral or acromioclavicular joint
* a full-thickness rotator cuff tear in MRI arthrography
* a progressive malign disease
* adhesive capsulitis
* high-energy trauma before symptoms
* cervical syndrome
* shoulder instability
```

## Arms

- **Acromioplasty** (ACTIVE_COMPARATOR) — Acromioplasty + physiotherapy according to a standardized protocol following a 3 months period of active non-operative treatment
- **Physiotherapy** (ACTIVE_COMPARATOR) — Physiotherapy according to a standardized protocol following a 3 months period of active non-operative treatment

## Interventions

- **Acromioplasty** (PROCEDURE) — Arthroscopic or open acromioplasty
- **Physiotherapy** (PROCEDURE) — Physiotherapy according to a standardized protocol

## Primary Outcomes

- **Change in pain (VAS) and objective shoulder function (Constant score)** _(time frame: 24 months after intervention)_ — VAS (0 to 100 mm), Constant score (0 to 100 points)

## Secondary Outcomes

- **Change in pain (VAS) and objective shoulder function (Constant score)** _(time frame: 3 months after intervention)_
- **Change in pain (VAS) and objective shoulder function (Constant score)** _(time frame: 6 months after intervention)_
- **Change in pain (VAS) and objective shoulder function (Constant score)** _(time frame: 12 months after intervention)_
- **Change in pain (VAS) and objective shoulder function (Constant score)** _(time frame: 5 years after uintervention)_

## Locations (3)

- University of Helsinki, Helsinki, Finland
- Central Finland Health District, Jyväskylä, Finland
- Oulu University Hospital, Oulu, Finland

## Recent Field Changes (last 30 days)

- `status.overallStatus` — added _(2026-05-12)_
- `status.primaryCompletionDate` — added _(2026-05-12)_
- `status.completionDate` — added _(2026-05-12)_
- `status.lastUpdatePostDate` — added _(2026-05-12)_
- `design.phases` — added _(2026-05-12)_
- `design.enrollmentCount` — added _(2026-05-12)_
- `eligibility.criteria` — added _(2026-05-12)_
- `eligibility.minAge` — added _(2026-05-12)_
- `eligibility.sex` — added _(2026-05-12)_
- `outcomes.primary` — added _(2026-05-12)_
- `outcomes.secondary` — added _(2026-05-12)_
- `armsInterventions.arms` — added _(2026-05-12)_
- `armsInterventions.interventions` — added _(2026-05-12)_
- `sponsor.lead` — added _(2026-05-12)_
- `sponsor.collaborators` — added _(2026-05-12)_
- `results.hasResults` — added _(2026-05-12)_
- `locations.university of helsinki|helsinki||finland` — added _(2026-05-12)_
- `locations.central finland health district|jyväskylä||finland` — added _(2026-05-12)_
- `locations.oulu university hospital|oulu||finland` — added _(2026-05-12)_

---

*Canonical: https://parkinsonspathways.com/agent/trials/NCT00637013.md*  
*Source data (authoritative): https://clinicaltrials.gov/study/NCT00637013*  
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