Objective: The midvastus arthrotomy technique is commonly utilized in total knee arthroplasty (TKA) due to its potential to preserve quadriceps integrity and improve early post-operative outcomes. This retrospective cohort study evaluates the impact of incision orientation in the midvastus technique on pain, functional recovery, and surgical outcomes.
Materials and
Methods: A total of 90 patients undergoing TKA were included, divided into three groups: standard midline, horizontally oriented, and vertically oriented midvastus incisions. All patients received the same implant and standardized perioperative care. Outcomes such as pain (VAS), function, blood transfusion rates, and numbness were assessed at 10 days, 1 month, and 3 months.

Results: The vertical incision group demonstrated significantly lower VAS scores and faster functional recovery. Blood transfusion rates and numbness incidence were also lowest in this group. Results are supported by p-values and descriptive statistics.

Conclusion: Vertical incision orientation in the midvastus approach appears to offer benefits in early post-operative outcomes. Following primary TKA, the vertical modified midvastus approach appears to be appropriate for enhancing early post-operative comfort.