The evolution and role of patellofemoral joint arthroplasty: The road less travelled, but not forgotten

[摘要] The patellofemoral joint has posed a challenge for arthroplasty surgeons and implantdesigners for over 60 years. This is hardly surprising given the complexity of the articulation, with joint reaction forces up to tentimes the body weight during activities ofdaily living,1-3 frequently encountered congenital and developmental variations,4-6 andstability that is dependent on the integrity ofthe extensor mechanism, surrounding softtissue, and lower limb alignment.7 Furthermore, patients with end-stage patellofemoral arthrosis may have a prolonged historyof patellofemoral pain,8 and frequently present after numerous surgical proceduressuch as arthroscopic debridement, softtissue reconstruction, lateral release, lateralfacetectomy, realignment osteotomies, andeven trochleoplasty.

[学科分类] 骨科学