Total knee arthroplasty after failed proximal tibial valgus osteotomy

Area of Science:

• Orthopedic Surgery
• Knee Arthroplasty
• Osteoarthritis Research

Background:

• Gonarthrosis is a common cause of knee pain and disability.
• Proximal tibial valgus osteotomy is a surgical option for correcting knee alignment before total knee arthroplasty.
• The impact of prior osteotomy on total knee arthroplasty outcomes requires further investigation.

Purpose of the Study:

• To compare the long-term results of total knee arthroplasty in patients with and without a history of proximal tibial valgus osteotomy.
• To assess functional outcomes, implant performance, and complication rates between the two groups.

Main Methods:

• Retrospective evaluation of 113 patients undergoing total knee arthroplasty for gonarthrosis.
• Patients were divided into two groups: 14 with prior proximal tibial valgus osteotomy and 99 without.
• Outcomes assessed included Hospital for Special Surgery (HSS) scores, knee flexion, revision rates, femorotibial angle, and polyethylene wear over 4-9 years.

Main Results:

• No significant differences were observed in final HSS scores, knee flexion, revision rates, femorotibial angle, or tibial polyethylene wear between the groups.
• Operative time was comparable between patients with and without prior osteotomy.
• Patients with prior osteotomy experienced significantly greater blood loss and a higher incidence of postoperative complications.

Conclusions:

• Prior proximal tibial valgus osteotomy does not negatively impact the functional outcomes or implant longevity of subsequent total knee arthroplasty.
• Total knee arthroplasty in patients with a history of proximal tibial valgus osteotomy is associated with increased surgical complexity, evidenced by greater blood loss and complications.