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Minimal important changes in the Constant Murley score in patients with subacromial pain
Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för sjukgymnastik. Linköpings universitet, Hälsouniversitetet.
Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för sjukgymnastik. Linköpings universitet, Hälsouniversitetet.
Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för kliniska vetenskaper. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Centrum för kirurgi, ortopedi och cancervård, Ortopedkliniken i Linköping.
Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för sjukgymnastik. Linköpings universitet, Hälsouniversitetet.
2014 (engelsk)Inngår i: Journal of shoulder and elbow surgery, ISSN 1058-2746, E-ISSN 1532-6500, Vol. 23, nr 8, s. 1083-1090Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Objective: The purpose of this study was to determine the minimal important change (MIC) of improvement in the Constant‐Murley score (CM score) in patients with longstanding subacromial pain and in subgroups of patients with subacromial pain with and without rotator cuff ruptures.

Method: The MIC was estimated by using the visual anchor‐based MIC distribution method, which integrates an anchor‐ and distribution‐based approach: the optimal cut‐off point of the receiver operator characteristic curve (MIC ROC) and the 95% limit cut‐ off point (MIC 95%limit). The study population consisted of 93 patients included in a randomized clinical trial evaluating the effect of a specific exercise strategy in patients with longstanding subacromial pain.

Results: The MIC ROC was found at a mean change of 17 points in the CM score. The MIC 95% limit was found at a mean change of 24 points. In the subgroup analysis the MIC ROC was found at a mean change of 19 points and the MIC 95% limit at 18 points in patients with an intact rotator cuff. In patients with rotator cuff ruptures the MIC ROC was found at a mean change of 15 points and the MIC 95% limit at 30 points.

Conclusion: The CM score is able to detect the minimal important change in individual patients with long‐standing subacromial pain when the rotator cuff is intact. In all patients with longstanding subacromial pain, the MIC value was dependent on the subgroup as well as the choice of statistical analysis. The estimated MIC values could be used as an indication for relevant changes in the CM score in clinical practice and guide the clinician in how to interpret the results of specific treatments for patients with longstanding subacromial pain.

sted, utgiver, år, opplag, sider
Mosby-Elsevier , 2014. Vol. 23, nr 8, s. 1083-1090
HSV kategori
Identifikatorer
URN: urn:nbn:se:liu:diva-90020DOI: 10.1016/j.jse.2014.01.014ISI: 000341135000006OAI: oai:DiVA.org:liu-90020DiVA, id: diva2:611232
Tilgjengelig fra: 2013-03-15 Laget: 2013-03-15 Sist oppdatert: 2017-12-06
Inngår i avhandling
1. Exercise treatment of patients with long-standing subacromial pain
Åpne denne publikasjonen i ny fane eller vindu >>Exercise treatment of patients with long-standing subacromial pain
2013 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
Abstract [en]

Subacromial pain is the most common problem among patients with shoulder complaints seeking primary care. The recommended treatment for these patients is primarily non-surgical with a focus on exercise treatment. If this treatment fails arthroscopic subacromial decompression (ASD) followed by exercise treatment is recommended. Surgical treatment with ASD has increased substantially in Sweden in recent years even though studies comparing exercise treatment with surgery report equally positive results. Still, there is a need of evidence based preand postoperative exercise treatments, standardised and described in detail, to guide treatment of these patients in clinical practice.

The overall aim of this thesis was to evaluate the efficacy of pre- and postoperative exercise strategies on shoulder function and how the preoperative strategy affects the need for surgery in patients with long-standing subacromial pain.

This thesis comprises four papers which are based on two randomised controlled trials. In study A, patients were randomised after ASD surgery to either physical therapist (PT) supervised strength-endurance exercises for the rotator cuff and scapula stabilisers or to home-based movement exercises for a period of three months. Shoulder function and pain, health related quality of life and return to work was evaluated for 6 months (paper I). In study B, patients on the waiting list for surgery were randomised to either specific exercise strategy with strengthendurance exercises for the rotator cuff and the scapula stabilisers or to control exercises with movement exercises for the neck and shoulders for a period of three months. After completing the exercise program and also after 12 months, shoulder function and pain, need for surgery and health related quality of life was evaluated. Baseline shoulder function, rotator cuff status and radiological findings were analysed in relation to the choice of surgery (paper II, III). The minimal important clinical change (MIC) of the Constant-Murley (CM) score, used as primary outcome in this thesis, was determined by using a visual anchor-based MIC distribution method (paper IV).

Six months after ASD surgery, patients who performed PT-supervised strength-endurance exercises improved significantly more in shoulder function and pain compared to patients who had performed home-based movement exercises (paper I). Patients on the waiting list for surgery who performed specific strength-endurance exercises had significantly greater improvements in shoulder function and pain compared to patients performing movement exercises (paper II). A significantly lower proportion of those performing specific strength-endurance exercises chose surgery at the three- and 12 months follow-ups (paper II, paper III). Low baseline values in shoulder function and pain measured with the CM score and/or having a full thickness rotator cuff rupture were associated with an increased risk of choosing surgery (paper III). Regarding the CM score, a change between 17-24 points seems to be clinically important for patients with long-standing subacromial pain (paper IV).

Supervised strength-endurance exercises seem to be more effective than home-based movement exercises after ASD surgery. For patients on the waiting list for surgery, the specific strategy of strength-endurance exercises was effective in improving shoulder function and pain and the need for surgery was reduced at 12 months. Low baseline values for shoulder function and pain measured with the CM score and/or having a full thickness rotator cuff tear seem to be predictors for choosing surgery. The CM score is able to detect the MIC in individual patients with long-standing subacromial pain when the rotator cuff is intact. In all patients with longstanding subacromial pain, the MIC value was dependent on the subgroup as well as the choice of statistical analysis.

sted, utgiver, år, opplag, sider
Linköping: Linköping University Electronic Press, 2013. s. 95
Serie
Linköping University Medical Dissertations, ISSN 0345-0082 ; 1352
HSV kategori
Identifikatorer
urn:nbn:se:liu:diva-90021 (URN)978-91-7519-695-4 (ISBN)
Disputas
2013-04-12, Berzeliussalen, Campus US, Linköpings universitet, Linköping, 09:00 (svensk)
Opponent
Veileder
Tilgjengelig fra: 2013-03-15 Laget: 2013-03-15 Sist oppdatert: 2013-03-15bibliografisk kontrollert

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