Factors Affecting Exposure in Total Knee Replacement Using Subvastus Approach

Abstract

INTRODUCTION: A key factor in minimally invasive knee surgery is protecting and preserving muscles. The muscles provide strength and control of our knee range of motion. The muscles are also an important factor in regaining motion. As one would expect, not cutting or detaching muscles around the knee results in less pain, better motion and faster recovery as in Subvastus approach of TKR. This study is Randomized prospective observational study, in which few signicant patient factor like :- FFD, BMI, Insall-Salvati score, muscle to bone ratio and varus valgus deformity got studied with respect to the Exposure level achieved by surgeon during knee replacement operation via Subvastus approach. This study in near future would help surgeons to decide whether a particular patient for knee replacement can be considered for surgery via Subvastus approach ,which is superior in terms of postop – rehabilitation and pain score than conventional approaches. 60 MATERIALS AND METHODS: patients with difculty in walking or pain in knee, requiring replacement are taken in this study from January 2019 to December 2019. DISCUSSION: The study shows that the exposure level for the surgeons gets restricted when the patient is Obese, muscularand one having xed exion deformity of his knee. Recurvatum on the other hand positively related to exposure level , which means patient with knee recurvatum had better exposure level in Tkr via Subvastus approach. Subvastus approach for Total knee re CONCLUSION: placement has benets of early postop recovery and better patient compliance but greater surgical skills of operating surgeon required because of reduced exposure level in surgery and muscle bulk is preserved.