J Child Orthop. 2011 Feb;5(1):11-7. doi: 10.1007/s11832-010-0310-6. Epub 2010 Dec 08.
Early experience with medial femoral tension band plating in idiopathic genu valgum.
Journal of children's orthopaedics
Humberto Guzman, Burt Yaszay, Vanessa P Scott, Tracey P Bastrom, Scott J Mubarak
PMID: 21415941
PMCID: PMC3024485 DOI: 10.1007/s11832-010-0310-6
Abstract
PURPOSE: For correction of angular deformity, tension band plating has been proposed as a safe and minimally invasive technique. The purpose of this study was to assess the experiences and report the rate of correction obtained with this procedure in patients with idiopathic genu valgum.
METHODS: This study was a retrospective review of 47 valgus deformities of the knee treated with medial hemiepiphysiodesis using a tension band plate. The tibiofemoral angle (TFA) and the anatomic lateral distal femoral angle (aLDFA) were assessed on anteroposterior (AP) radiographs of the lower extremity taken at multiple time intervals. The values were charted to determine the change in orientation of the joint surface over time. Pearson's correlation was used to analyze the correction over time. A subanalysis was performed evaluating the effect of age and the number of plates utilized.
RESULTS: A total of 47 deformities in 25 patients were reviewed. The average time of follow-up from index surgery was 12.7 months, with an average correction of 0.96° every 3 months or 3.8° per year. The aLDFA corrected at a faster rate in knees with two plates per hemiepiphysiodesis than those with one plate, 4.2° and 3.3° per year, respectively (P = 0.035). Girls <11 years of age and boys <13 years of age corrected at a rate of 4.5°, while older children corrected at a rate of 3.4° per year (P = 0.39). There were no complications or instrumentation breakages.
CONCLUSION: Hemiepiphysiodesis with tension band plating provides an effective and predictable correction of idiopathic genu valgum. Two plates appear to provide a greater rate of correction. There is also a trend toward faster correction in younger patients as well.
Keywords: Genu valgum; Hemiepiphysiodesis; Tension band plate
References
- J Pediatr Orthop. 2009 Jan-Feb;29(1):57-60 - PubMed
- J Pediatr Orthop. 2008 Mar;28(2):188-91 - PubMed
- J Pediatr Orthop. 1992 May-Jun;12(3):359-64 - PubMed
- J Bone Joint Surg Am. 1971 Dec;53(8):1629-35 - PubMed
- J Child Orthop. 2008 Jun;2(3):187-97 - PubMed
- J Orthop Res. 2008 Feb;26(2):225-30 - PubMed
- J Pediatr Orthop. 2009 Jul-Aug;29(5):481-5 - PubMed
- J Pediatr Orthop. 2005 May-Jun;25(3):336-41 - PubMed
- J Bone Joint Surg Am. 1963 Jan;45-A:1-14 - PubMed
- J Pediatr Orthop. 1996 Mar-Apr;16(2):173-9 - PubMed
- J Bone Joint Surg Am. 1975 Mar;57(2):259-61 - PubMed
- J Pediatr Orthop. 2007 Apr-May;27(3):253-9 - PubMed
- J Bone Joint Surg Am. 1949 Jul;31A(3):464-78 - PubMed
- J Pediatr Orthop. 2007 Sep;27(6):623-8 - PubMed
- J Bone Joint Surg Am. 1979 Apr;61(3):320-9 - PubMed
- J Pediatr Orthop. 2004 Jan-Feb;24(1):70-4 - PubMed
- J Pediatr Orthop. 1996 Mar-Apr;16(2):180-2 - PubMed
- J Bone Joint Surg Br. 2010 Feb;92(2):273-6 - PubMed
Publication Types