Allograft and autograft for ACL reconstruction lead to similar clinical outcomes .
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OrthoEvidence Journal (OE Journal) - ACE Report
OE Journal. 2013;1(4):52 Int Orthop. 2013 Feb;37(2):311-20. doi: 10.1007/s00264-012-1720-5. Epub 2012 Dec 4Nine studies (818 patients) were identified to compare the clinical outcomes of allograft versus autograft for anterior cruciate ligament (ACL) reconstruction. No significant differences in clinical outcomes were identified between the two treatments to determine which was more optimal for ACL reconstruction. However, subgroup analysis revealed that reconstruction with bone-patellar tendon-bone (BPTB) autograft may allow patients to return to higher levels of activity when compared to BPTB allograft.
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La valutazione dei criteri di segnalazione valuta la trasparenza con cui gli autori riportano le caratteristiche metodologiche e sperimentali dello studio all'interno della pubblicazione. La valutazione è suddivisa in cinque categorie che vengono presentate di seguito.
4/4
Introduction
4/4
Accessing Data
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Analysing Data
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Detsky AS, Naylor CD, O'Rourke K, McGeer AJ, L'Abbé KA. J Clin Epidemiol. 1992;45:255-65
L'Indice di Fragilità è uno strumento che aiuta l'interpretazione dei risultati significativi, fornendo una misura della forza di un risultato. L'Indice di Fragilità rappresenta il numero di eventi consecutivi che devono essere aggiunti a un risultato dicotomico per rendere il risultato non più significativo. Un numero piccolo rappresenta un risultato più debole, mentre un numero grande rappresenta un risultato più forte.
Perché questo studio era necessario ora?
ACL reconstruction is the primary treatment option for ACL ruptures to prevent knee instability. However, it is still uncertain whether allografts provide similar results as autografts for ACL reconstruction. The majority of the past systematic reviews reporting these treatments have been based on low-quality studies. With the publication of new randomized trials since the latest systematic review, this meta-analysis aimed to evaluate the clinical outcomes of allografts versus autografts for ACL reconstruction.
Qual era la domanda di ricerca principale?
Which treatment - allografts or autografts - for ACL reconstruction led to better clinical outcomes?
- 9 studies (410 patients in the autograft and 408 patients in the allograft group) were included in this meta-analysis; 4 studies were randomized controlled studies (RCTs) and 5 were prospective cohort studies.
- Analysis from 6 studies revealed the risk ratio for KT-1000/2000 side-to-side difference >5 mm was 1.19 in favour of allograft (95% CI, 0.63 to 2.24); however, the results were not significant (P = 0.59).
- According to 6 studies, the risk ratio for abnormal Lachman test (grade >0) was 0.88 in favour of autograft (95% CI, 0.64 to 1.2); the results were not deemed significant (P = 0.41).
- 7 studies indicated that the risk ratio for abnormal Pivot Shift test (grade >0) was 0.97 in favour of autograft (95% CI, 0.64 to 1.46); however, the results were not significant (P = 0.88).
- In regards to objective IKDC scores, analysis from 7 studies revealed that the risk ratio for being considered abnormal or severely abnormal was 0.96 favouring autograft (95% CI, 0.6 to 1.54); the results were not statistically significant (P = 0.87).
- 3 studies revealed a mean difference of 0.3 on Lysholm scores in favour of autograft (95% CI, -1.97 to 2.57), where the results were not significant (P = 0.79); the same 3 studies indicated a mean difference of 0.25 on Tegner scores in favour of autograft (95% CI, -0.01 to 0.52), where the results were not significant (P = 0.06).
- The subgroup analysis of Tegner scores by only pooling 4 studies involving BPTB grafts estimated a mean difference of 0.5 in favour autograft (95% CI, 0.15 to 0.85; P = 0.005).
Che cosa devo ricordare di più?
This meta-analysis revealed that ACL reconstruction with allografts or autografts led to similar clinical outcomes. However, subgroup analysis indicated that reconstruction with BPTB autograft may allow patients to return to higher levels of activity in comparison with BPTB allograft.
Come influenzerà l'assistenza ai miei pazienti?
There was insufficient evidence to determine which graft technique was superior for ACL reconstruction. These results suggest equivocal clinical results for allograft and autograft overall, although bone patellar tendon bone autografts may be superior to allograft for return to high-level activity. Future research involving high-quality RCTs with specified age and activity are required to further evaluate the outcomes of these two treatments.
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