SHOULDER & ELBOW
Immobilization in external rotation after primary shoulder dislocation did not reduce the risk of recurrence: A randomized controlled trial.
This report has been verified
by one or more authors of the
original publication.
OrthoEvidence Journal (OE Journal) - ACE Report
OE Journal. 2013;1(4):40 J Bone Joint Surg Am. 2011 May 18;93(10):897-904. Epub 2011 Apr 15.Exclusive Author Interview
Dr. Liavaag discusses shoulder immobilization following primary shoulder dislocation.
188 patients with primary traumatic anterior shoulder dislocation were randomized to be managed by immobilization in either internal rotation or 15° of external rotation for a period of 3 weeks. The 2-year follow up concludes that the re-dislocation rates were similar in both the treatment groups.
Was the allocation sequence adequately generated?
Was allocation adequately concealed?
Blinding Treatment Providers: Was knowledge of the allocated interventions adequately prevented?
Blinding Outcome Assessors: Was knowledge of the allocated interventions adequately prevented?
Blinding Patients: Was knowledge of the allocated interventions adequately prevented?
Was loss to follow-up (missing outcome data) infrequent?
Are reports of the study free of suggestion of selective outcome reporting?
Were outcomes objective, patient-important and assessed in a manner to limit bias (ie. duplicate assessors, Independent assessors)?
Was the sample size sufficiently large to assure a balance of prognosis and sufficiently large number of outcome events?
Was investigator expertise/experience with both treatment and control techniques likely the same (ie.were criteria for surgeon participation/expertise provided)?
Sí = 1
Incierto = 0,5
No relevante = 0
No = 0
La evaluación de los criterios de información evalúa la transparencia con la que los autores informan de las características metodológicas y del ensayo dentro de la publicación. La evaluación se divide en cinco categorías que se presentan a continuación.
4/4
Randomization
3/4
Outcome Measurements
4/4
Inclusion / Exclusion
4/4
Therapy Description
4/4
Statistics
Detsky AS, Naylor CD, O'Rourke K, McGeer AJ, L'Abbé KA. J Clin Epidemiol. 1992;45:255-65
El Índice de Fragilidad es una herramienta que ayuda en la interpretación de hallazgos significativos, proporcionando una medida de fuerza para un resultado. El Índice de Fragilidad representa el número de eventos consecutivos que es necesario añadir a un resultado dicotómico para que el hallazgo deje de ser significativo. Un número pequeño representa un hallazgo más débil y un número grande un hallazgo más fuerte.
¿Por qué se necesitaba ahora este estudio?
There is a high risk of recurrence following a primary traumatic anterior shoulder dislocation, especially in the younger population. There have been several variable suggestions as to the best management. The orthopedic community is divided over the usefulness of the immobilization in external rotation. The study provides much needed evidence to determine best management.
¿Cuál era la pregunta principal de la investigación?
Does immobilization in external rotation provides any additional benefit to the future risk of recurrence, compared to standard immobilization in internal rotation?
¿Cuáles fueron los hallazgos importantes?
- recurrence rate of 30.8% with immobilization in external rotation vs. 27.1% in internal rotation
- mean time to recurrence 10.5 months in External rotation group vs. 11.6 months in Internal Rotation group.
- median WOSI Score of 238 in external rotation vs. 375 in internal rotation group
¿Qué es lo que más debo recordar?
External rotation immobilizers are not beneficial to reduce the risk of future shoulder dislocation.
¿Cómo afectará esto al cuidado de mis pacientes?
Although this study finds that external rotation immobilizers are not beneficial, the sample size may be too small for definitive conclusions.
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