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<p>Patellofemoral arthroplasty (PFA) represents a&#xa0;bone-preserving treatment option for patients with isolated patellofemoral osteoarthritis, particularly for younger and active individuals with high functional demands. While primary degenerative changes are rare, the most common causes include posttraumatic conditions, malalignment or trochlear dysplasia. Accurate preoperative diagnostics, including imaging procedures, are essential to identify concomitant pathologies, such as patella alta or a&#xa0;lateralized tibial tuberosity. These may require additional procedures, such as tibial tuberosity osteotomy or medial patellofemoral ligament (MPFL) reconstruction to optimize outcomes. Compared to total knee arthroplasty (TKA), PFA offers advantages such as reduced invasiveness, better bone stock preservation and improved range of motion; however, the revision rate is higher, particularly due to progression of tibiofemoral osteoarthritis. With strict consideration of the indications, meticulous surgical technique and careful consideration of the individual anatomy, PFA can be a&#xa0;valuable option to restore joint function and quality of life in selected patients.</p>

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Patellofemoraler Gelenkersatz

  • 期刊论文

  • 发表日期：

    2025年7月22日

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  • Johannes Rieger,
  • C. Benignus,
  • P. Buschner,
  • J. Beckmann

摘要

Patellofemoral arthroplasty (PFA) represents a bone-preserving treatment option for patients with isolated patellofemoral osteoarthritis, particularly for younger and active individuals with high functional demands. While primary degenerative changes are rare, the most common causes include posttraumatic conditions, malalignment or trochlear dysplasia. Accurate preoperative diagnostics, including imaging procedures, are essential to identify concomitant pathologies, such as patella alta or a lateralized tibial tuberosity. These may require additional procedures, such as tibial tuberosity osteotomy or medial patellofemoral ligament (MPFL) reconstruction to optimize outcomes. Compared to total knee arthroplasty (TKA), PFA offers advantages such as reduced invasiveness, better bone stock preservation and improved range of motion; however, the revision rate is higher, particularly due to progression of tibiofemoral osteoarthritis. With strict consideration of the indications, meticulous surgical technique and careful consideration of the individual anatomy, PFA can be a valuable option to restore joint function and quality of life in selected patients.