Unexplained Pain Following Total Knee Arthroplasty is Rotational Malalignment the Problem?

Unexplained Pain Following Total Knee Arthroplasty – Is Rotational Malalignment the Problem?

BACKGROUND Malrotation of tibial and femoral components is a potential source of pain following total knee arthroplasty (TKA). This study aimed to 1) compare component rotation in TKA patients with unexplained pain versus a control group with well-functioning TKAs and 2) investigate the relationship between TKA component rotation and pain. METHODS Seventy one patients with unexplained pain af...

Total Knee Arthroplasty Malalignment: Myth or Reality?

Patellar malalignment treatment in total knee arthroplasty.

The patella, with or without resurfacing, plays a fundamental role in the success of a total knee arthroplasty (TKA). Patellofemoral joint complications are due to problems related to the patient, to the surgical technique, or to the design of the components. Patellar tracking is influenced by several factors: a severe preoperative valgus, the presence of pre-existing patellofemoral dysplasia, ...

Revision total knee arthroplasty for unexplained pain after unicompartmental knee arthroplasty: a case report.

In this report, we present a case of a 64-year-old woman who underwent revision of knee arthroplasty after failed unicompartmental knee arthroplasty (UKA). She underwent UKA (Biomet Oxford Phase 3) for right localized medial knee pain at the age of 53 and the postoperative course had been uneventful. Eight years after UKA, she had right knee pain that gradually worsened. Tenderness was present ...

Does malalignment affect patient reported outcomes following total knee arthroplasty: a systematic review of the literature

BACKGROUND Total knee replacement is an effective treatment for knee arthritis. While the majority of TKAs have demonstrated promising long-term results, up to 20 % of patients remain dissatisfied with the outcome of surgery at 1 year. Implant malalignment has been implicated as a contributing factor to less successful outcomes. Recent evidence has challenged the relationship between alignment ...