TRAUMA
Comparison of autogenous bone graft and endothermic calcium phosphate cement for defect augmentation in tibial plateau fractures. A multicenter, prospective, randomized study
This report has been verified
by one or more authors of the
original publication.
OrthoEvidence Journal (OE Journal) - ACE Report
OE Journal. 2013;1(3):115 J Bone Joint Surg Am. 2008 Oct;90(10):2057-61119 patients presenting with acute, closed, unstable tibial plateau fractures (120 fractures) were randomized to undergo standard open reduction and internal fixation with either a bioresorbable calcium phosphate cement (alpha-BSM) or an autogenous iliac bone graft. The results after a 12 month follow-up indicated that the use of alpha-BSM was superior in reducing articular subsidence compared to autogenous iliac bone graft.
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
4/4
Medidas de resultado
2/4
Inclusão/Exclusão
3/4
Descrição do tratamento
2/4
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？
For patients with defects resulting from unstable tibial plateau fractures, use of the autogenous iliac bone graft is considered the standard choice of treatment. However, there are reported disadvantages and complications associated with this procedure. Prevention of articular surface collapse is the primary goal of autogenous grafting to treat subarticular defects; however, the use of artificial material with internal fixation may provide the necessary benefits and support for the articular surface. Few in vivo studies have demonstrated the benefits of a calcium phosphate cement (alpha-BSM) over bone grafts indicating the need for more trials evaluating the effectiveness of the alpha-BSM.
主な研究課題は何ですか？
Is the use of a calcium phosphate cement (alpha-BSM) as effective as autogenous iliac bone graft in the treatment of subarticular bone defects resulting from tibial plateau fractures, measured over a 12 month time period?
重要な知見は？
- There was no significant difference regarding the age, height, weight, sex and fracture patterns of the patients between the two groups.
- There was no difference between the two treatment groups with respect to union or the frequency of union, and infections.
- There was no dissolution in either the bone graft of the alpha-BSM prior to fracture union, evidenced by the absence of radiolucent zones on radiographs. No patients in either of the treatment groups had loss of internal fixation.
- During the 3-12 month follow up period, the autogenous bone graft group had a significantly higher rate of articular subsidence compared to the alpha-BSM group (subsidence of 2mm or greater in 30% of autogenous graft patients vs. 9% of alpha-BSM patients) (p=0.009).
- The alpha-BSM group demonstrated a greater improvement in range of motion compared to the autogenous graft group (not significant difference).
最も覚えておくべきことは？
This study demonstrated that alpha-BSM, for the intervention of tibial plateau fractures, resulted in similar and possibly better mechanical support when compared to autogenous bone grafts, as less subsidence was observed in patients treated with alpha-BSM.
それが私の患者ケアにどのように影響するか？
Patients with unstable tibial plateau fractures may receive comparable outcomes when treated with alpha-BSM compared to autogenous iliac bone graft. As this is one of the first studies investigating alpha-BSM in comparison to autogenous iliac bone graft, further trials are need to establish alpha-BSM as an adequate augmentation to open reduction and internal fixation of unstable tibial plateau fractures.
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