Comparison of pain level, blood loss, and recovery in mini‑subvastus vs standard TKA .
Total knee arthroplasty performed with either a mini‑subvastus or a standard approach: a prospective randomized controlled study with a minimum follow‑up of 2 years
Arch Orthop Trauma Surg. 2014 Aug;134(8):1155-62. doi: 10.1007/s00402-014-1963-2. Epub 2014 Mar 5.Sixty eight patients with knee osteoarthritis and scheduled for primary unilateral total knee arthroplasty (TKA) were randomized to undergo either minimally invasive TKA using the mini-subvastus approach or standard TKA. The purpose of this study was to investigate pain level, blood loss, and recovery between surgical treatment groups at minimum 2 years postoperatively. The mini-subvastus approach demonstrated significantly lower 24-hr blood loss, pain during the first postoperative day, earlier functional recovery, and improved functional outcomes over the first 9 months after surgery. Despite these positive features, downsides of this approach include increased risk of component malposition and prolongation of operative time.
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