Role of Implant Angles in Hemiepiphysiodesis using 8 Plate for Correction of Angular Deformity Around Knee
Journal Title: International Journal of Contemporary Medical Research - Year 2016, Vol 3, Issue 8
Abstract
Introduction: Knee joint being crucial weight bearing region may be exposed to pathological mechanical load due to Malalignment causing early osteoarthritis of the knee joint. Correction by surgical treatment like hemiepiphysiodesis with eight plate is necessary and proves beneficial depending upon the degree of deformity. The aim of this study was to evaluate the total change of Tibiofemoral Angle (TFA), Mechanical Axis Deviation (MAD) and implant angles and the relationship between implant angles and TFA and MAD during the correction of deformity. Material and methods: we carried out our study in 15 patients having knee angular deformities like genu varum and genu valgus. These patients were surgically managed using eight-plate guided growth. Correction of deformity was measured by radiological assessment. Certain growth and implant angles were measured radiographically like- tibio femoral angle, mechanical axis deviation and Implant angles. Every patient was properly under surgical, medical management and post operative follow up. Results: Proximal and Distal implant angles showed negative correlation with Mechanical axis deviation in Genu varum and Genu valgum cases which was statistically significant (p<0.001). Tibio femoral angle improved for valgum deformity from 22.210± 2.390 to 6.340± 2.620. Mechanical axis deviation improved for valgum deformity from 3.63± 0.35 cm to 0.73± 0.43 cm (6%). Conclusion: Implant angles increases in their values and their increment retards as the deformity comes near to correction values. These implant angles show that physes is growing and both plate and physes are working normal.
Authors and Affiliations
Anurag Baghel, Narendra Singh Kushwaha, Shailendra Singh, Raghav Pratap Singh, Santosh Kumar
Keywords
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