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1000 Titel
  • Preoperative patellofemoral anatomy affects failure rate after isolated patellofemoral inlay arthroplasty
1000 Autor/in
  1. Feucht, Matthias J. |
  2. Lutz, Patricia M. |
  3. Ketzer, Conrad |
  4. Rupp, Marco C. |
  5. Cotic, Matthias |
  6. Imhoff, Andreas B. |
  7. Pogorzelski, Jonas |
1000 Erscheinungsjahr 2020
1000 Publikationstyp
  1. Artikel |
1000 Online veröffentlicht
  • 2020-10-30
1000 Erschienen in
1000 Quellenangabe
  • 140(12):2029-2039
1000 Copyrightjahr
  • 2020
1000 Lizenz
1000 Verlagsversion
  • https://doi.org/10.1007/s00402-020-03651-9 |
  • https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7674339/ |
1000 Publikationsstatus
1000 Sprache der Publikation
1000 Abstract/Summary
  • Purpose!#!To analyze whether preoperative patellofemoral anatomy is associated with clinical improvement and failure rate after isolated patellofemoral arthroplasty (PFA) using a modern inlay-type trochlear implant.!##!Methods!#!Prospectively collected 24 months data of patients treated with isolated inlay PFA (HemiCAP!##!Results!#!A total of 41 patients (61% female) with a mean age of 48 ± 13 years could be included. Fifteen patients (37%) were considered failures, with 5 patients (12%) revised to TKA and 10 patients (24%) not achieving MCID for WOMAC total or VAS pain. Failures had a significantly higher ISI, and a significantly lower PTI. Furthermore, the proportion of patients with a pathologic ISI (> 1.2), a pathologic PTI (< 0.28), and without trochlear dysplasia were significantly higher in failures. Significantly greater improvements in clinical outcome scores were observed in patients with a higher preoperative grade of patellofemoral OA, ISI ≤ 1.2, PTI ≥ 0.28, TT-PCL distance ≤ 21 mm, and a dysplastic trochlea.!##!Conclusion!#!Preoperative patellofemoral anatomy is significantly associated with clinical improvement and failure rate after isolated inlay PFA. Less improvement and a higher failure rate must be expected in patients with patella alta (ISI > 1.2 and PTI < 0.28), absence of trochlear dysplasia, and a lateralized position of the tibial tuberosity (TT-PCL distance > 21 mm). Concomitant procedures such as tibial tuberosity transfer may, therefore, be considered in such patients.!##!Level of evidence!#!Level III, retrospective analysis of prospectively collected data.
1000 Sacherschließung
lokal Patellofemoral Joint/surgery [MeSH]
lokal Patellar maltracking
lokal Malalignment
lokal Patellofemoral Joint/anatomy
lokal Osteoarthritis, Knee/surgery [MeSH]
lokal Risk Factors [MeSH]
lokal Trochlear dysplasia
lokal TT–TG
lokal Arthroscopy and Sports Medicine
lokal Magnetic Resonance Imaging [MeSH]
lokal Male [MeSH]
lokal Patella alta
lokal Tibia/anatomy
lokal Minimal Clinically Important Difference [MeSH]
lokal Female [MeSH]
lokal Patellofemoral arthroplasty
lokal Radiography [MeSH]
lokal Adult [MeSH]
lokal Humans [MeSH]
lokal Retrospective Studies [MeSH]
lokal Arthroplasty/methods [MeSH]
lokal Middle Aged [MeSH]
lokal Posterior Cruciate Ligament/anatomy
lokal Tibia/diagnostic imaging [MeSH]
lokal Treatment Failure [MeSH]
lokal Patella/diagnostic imaging [MeSH]
lokal Posterior Cruciate Ligament/diagnostic imaging [MeSH]
lokal TT–PCL
lokal Patellofemoral Joint/diagnostic imaging [MeSH]
lokal Patella/anatomy
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