SHOULDER & ELBOW
Is protecting the healing ligament beneficial after immobilization in external rotation for an initial shoulder dislocation?
This report has been verified
by one or more authors of the
original publication.
OrthoEvidence Journal (OE Journal) - ACE Report
OE Journal. 2013;1(11):214 Am J Sports Med. 2013 May;41(5):1126-32. doi: 10.1177/0363546513480620. Epub 2013 Mar 22109 patients with traumatic shoulder dislocation were randomized to determine the effect of a shoulder motion restriction band on recurrence rates. Following reduction and immobilization in external rotation for 3 weeks, participants received either 6- or 3-week use of the restriction band, or no band use. Assessments were conducted for a minimum of 2 years following reduction, and no difference between groups was observed for overall recurrence of shoulder dislocation, even when patients were stratified by age.
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)?
はい = 1
不確実＝0.5
無関係 = 0
いいえ = 0
報告基準評価では、著者が出版物内で試験の方法論的特徴や試験特性を報告する際の透明性を評価します。評価は以下の5つのカテゴリーに分類されます。
3/4
Randomização
3/4
Medidas de resultado
3/4
Inclusão/Exclusão
4/4
Descrição do tratamento
4/4
Estatística
Detsky AS, Naylor CD, O'Rourke K, McGeer AJ, L'Abbé KA. J Clin Epidemiol. 1992;45:255-65
Fragility Indexは、重要な所見の解釈を助けるツールで、結果の強さの尺度を提供します。Fragility Indexは、その所見が有意でなくなるために、二項対立の結果に追加する必要がある連続した事象の数を表します。数値が小さいほど弱い所見を表し、数値が大きいほど強い所見を表します。
なぜ今この研究が必要なのですか？
Traumatic shoulder dislocations, which boast one of the highest recurrence rates, are almost invariably associated with a Bankart lesion. Immobilization in 10 degrees external rotation for 3 weeks following the injury has been suggested as an appropriate protocol for healing of the lesion, however the true length of time required for healing is still unknown. Furthermore, it is imperative that the inferior glenohumeral ligament-labrum (IGHL) complex, in which healing is still ongoing following 3 weeks of immobilization, not be stretched. Maximum tension on the IGHL occurs with the arm at 90 degrees abduction and maximum external rotation, which may be protected by the use of a motion restriction band.
主な研究課題は何ですか？
Following 3-week immobilization at 10-15 degrees external rotation after traumatic shoulder dislocation, what was the effect of 6- or 3-week use of a shoulder motion restriction band compared to no band use on recurrent shoulder dislocation within 2 years?
重要な知見は？
- Recurrent dislocation occurred in 8/29 0-week patients (28%), 10/30 3-week patients (33%), and 10/31 6-week patients (32%) (P=0.88). 20 of the shoulders with recurrent dislocation (71%) were due to sports injuries.
- In the subgroup analysis of patients 30 years of age or younger, recurrence rates were 7/15 in the 0-week group (47%), 9/21 in the 3-week group (43%), and 8/24 in the 6-week group (33%) (P=0.67).
- In the subgroup analysis of patients over the age of 30, recurrence rates were 1/14 in the 0-week group (7%), 1/9 in the 3-week group (11%), and 2/7 in the 6-week group (29%) (P=0.43).
- Rates of return to sports was 18/21 0-week patients (86%), 16/22 3-week patients (73%), and 21/24 6-week patients (88%) (P=0.39). Return to preinjury level was 13/21 in the 0-week group (62%), 12/22 in the 3-week group (55%), 14/24 in the 6-week group (58%) (P=0.89).
- Return to contact sports was 1/2 in the 0-week group (50%), 4/7 in the 3-week group (57%), and 2/2 in the 6-week group (100%) (P=0.35). Return to noncontact sports was 9/16 in the 0-week group (56%), 6/13 in the 3-week group (46%), and 12/22 in the 6-week group (55%) (P=0.85).
- There was no significant difference between groups in rates of compliance to immobilizer use (P=0.11), restriction band use (P=0.28), or both (P=0.54).
最も覚えておくべきことは？
There was no difference in recurrence rates of shoulder dislocation observed with the use of a shoulder motion restriction band (for 3 and 6 weeks) compared to no use after 3 weeks of immobilization in external rotation following primary traumatic shoulder dislocation.
それが私の患者ケアにどのように影響するか？
These results do not suggest there is an advantageous effect of shoulder motion restriction bands with respect to recurrence of dislocation. Further investigation may consider the effect of restriction band use on clinical outcome and shoulder range of motion.
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