PEDIATRIC ORTHOPAEDICS
Hemiepiphysiodesis: Similar treatment time for tension-band plating and for stapling
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by one or more authors of the
original publication.
OrthoEvidence Journal (OE Journal) - ACE Report
OE Journal. 2013;1(8):18 Acta Orthop. 2013 Apr;84(2):202-6. doi: 10.3109/17453674.2013.782526. Epub 2013 Mar 14The present trial evaluated 20 children with idiopathic genu valgum (IGV) who were randomized for hemiepiphysiodesis with either a tension band construct or staples to correct angular deformities. To compare the efficiency of both treatment methods, the time for correction of deformity, changes in angles as measured on radiographs, pain by visual analog scale (VAS) and analgesic consumption were recorded. The post-operative results indicated no differences between using staples and tension band plating for all outcomes.
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)?
Ja = 1
Ungewiss = 0.5
Nicht relevant = 0
Nein = 0
Die Bewertung der Berichtskriterien bewertet die Transparenz, mit der die Autoren die methodischen und studienspezifischen Merkmale der Studie in der Veröffentlichung angeben. Die Bewertung ist in fünf Kategorien unterteilt, die im Folgenden vorgestellt werden.
4/4
Randomization
3/4
Outcome Measurements
3/4
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
Der Fragilitätsindex ist ein Instrument, das bei der Interpretation signifikanter Ergebnisse hilft und ein Maß für die Stärke eines Ergebnisses liefert. Der Fragilitätsindex gibt die Anzahl der aufeinanderfolgenden Ereignisse an, die zu einem dichotomen Ergebnis hinzugefügt werden müssen, damit das Ergebnis nicht mehr signifikant ist. Eine kleine Zahl steht für ein schwächeres Ergebnis und eine große Zahl für ein stärkeres Ergebnis.
Warum wurde diese Studie jetzt benötigt?
Hemiepiphysiodesis is used to correct excessive angular deformities in the extremities of children. Implants stop unilateral growth until the deformity is corrected and are then removed to resume growth. Staples have been used for this procedure, but are associated with complications such as staple migration, breakage, and premature growth plate closure. More recently, tension-band plating has been introduced for faster correction and prevention of growth plate compression. However, no known randomized trial has demonstrated superiority of tension-band plating technique over stapling.
Was war die wichtigste Forschungsfrage?
How do the clinical and radiographic effects of stapling compare to tension-band plating in children with IGV of the distal femur?
Was waren die wichtigsten Ergebnisse?
- The tension band group and staples group had similar time taken to correct idiopathic genu valgum deformity (mean 340 days (286–394) vs. mean 349 days (263–435), respectively) (p=0.8). Cohen’s delta showed an estimated effect size of 0.075.
- No implant failures, infection or growth arrests occurred, while all 20 children achieved correction of genu valgum deformity.
- Although groups differed in gender (M/F in staples group = 3/7 vs tension band = 8/2) and age (tension band group mean age = 10.1 ( 8–14 years) vs. staples group mean age = 11.1 (6–13) years), there were no differences in treatment time, preoperative intermalleolar distance, and measured radiographic values (LDFA, MPTA, and MAD) treatment (p>0.05).
- VAS pain was recorded for 18/20 children and was similar in both groups (p>0.05) 72 hours postoperatively.
- 1 child in tension-band group had a rebound of intermalliolar distance of 8 cm and was scheduled for surgery
Was sollte ich mir besonders merken?
Hemiepiphysiodesis with both tension band and staples have similar treatment time and angle correction of idiopathic genu valgum.
Wie wird sich dies auf die Behandlung meiner Patienten auswirken?
The trial was not able to show superiority of either hemiepiphysiodesis methods. Further studies with larger populations need to be conducted as this study may be underpowered.
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