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Beitragstitel Native non-osteoarthritic knees have a highly variable patellofemoral alignment – a systematic review
Beitragscode P051
Autoren
  1. Bettina Hochreiter Universitätsklinik Balgrist Vortragender
  2. Lukas Moser Research Group Michael T. Hirschmann, Regenerative Medicine & Biomechanics, Department of Clinical Research, University of Basel, Basel, Switzerland
  3. Silvan Hess Spital Thun STS AG
  4. Michael Tobias Hirschmann Kantonsspital Baselland
  5. Felix Amsler Amsler Consulting
  6. Henrik Behrend Orthopädie Ost Gossau
Präsentationsform Poster
Themengebiete
  • A05 - Knie
Abstract Purpose: There is still a lack of knowledge regarding the variability of patellofemoral alignment in healthy, non-osteoarthritic knees without patellofemoral instability. We therefore conducted a systematic review of the current literature to evaluate the variability of native patellofemoral alignment.
Methods: The patellofemoral alignment of the knee was defined by the following parameters: sulcus angle (SA), femoral trochlear depth (FTD), patellar tilt angle (PTA), lateral patellofemoral angle (LPFA), lateral femoral trochlear inclination (LFTI) and tibial tubercle – trochlear groove distance (TT-TG). The electronic databases MEDLINE and EMBASE were searched from database inception to search date (January 11, 2019) and screened for relevant studies. The PRISMA guidelines were followed. Inclusion criteria were studies that report the patellofemoral alignment of the native, non-osteoarthritic knee without patellofemoral instability.
Results: A total of 15 studies met the inclusion criteria. Twelve studies performed the measurements on MRI, three studies used CT and two studies used X-ray in addition to MRI. The reported mean SA (°) values ranged from 118.7 ± 7 to 168 ± NA. The mean FTD (mm) ranged from 3.4 ± 1.1 to 7.1 ± 1.8. The reported mean PTA (°) values ranged from 0.7 ± 4.99 to 17.05 ± 4.3. The reported mean LPFA (°) values ranged from 6.26 ± 4.1 to 11.1 ± 4.0. The reported mean LFTI (°) values ranged from 16.3 ± 2.8 to 22.1 ± 1.9.
Conclusion: The broad variability of native patellofemoral alignment shown in this systematic review suggests the necessity for a more anatomic and individualized approach in knee surgery.