ArticleKnee surgery & related research2024
Comparable postoperative outcomes in patients treated with either open or arthroscopic trochleoplasty for patella dysplasia.
Article in Knee surgery & related research, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Patellofemoral instability: Anatomy, imaging techniques, and clinically relevant measurements.Skeletal radiology · 2026Review
- Rimplasty: An Arthroscopic Technique for Patients With Isolated Patellar Chondromalacia Based on Autologous Matrix-induced Chondrogenesis+ and Limited Trochleoplasty.Arthroscopy techniques · 2026Article
- Arthroscopic Management of Patellar Instability in Skeletally Immature Patients: Current Concepts and Future Directions.Journal of clinical medicine · 2025Review
- Evolution and trends in the management of acromioclavicular joint dislocations: an epidemiological analysis from Germany between 2013 and 2023.JSES international · 2025Article
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Abstract
backgroundThe aim of this study was to compare the clinical and radiologic results of the arthroscopic and the open trochleoplasty techniques.
methodsA total of 83 trochleoplasties in 83 patients were performed between 2014 and 2021 in one institution. Surgical indications for trochleoplasty were recurrent patellofemoral instability and a lateral trochlear inclination angle (LTI) ≤ 11˚ and a trochlear depth ≤ 6 mm. Of the trochleoplasties, 40 were done by open technique (OT) and 43 by arthroscopic technique (AT). In every case an additional medial patellofemoral ligament (MPFL) reconstruction was performed. Additional tuberosity tibia transfer and/or de-rotation of the femur were done when indicated. Pre- and postoperative magnetic resonance imaging (MRI) were analyzed in respect to LTI, trochlear depth, and lateralization of the patella. Postoperative subjective clinical assessment was done using the Kujala Score, Banff II Score, Tegner Score, and Marx Score.
resultsOf the patients, 15 with OT and 20 with AT were available for follow-up. The mean follow-up was 29.9 months in the OT group and 12.7 months in the AT group. No re-dislocation was observed in either groups. A significant reduction of LTI, increase of trochlear depth, and a reduction of lateralization of the patella was observed between the pre- and postoperative MRI scans in both groups. No significant difference in the observed MRI parameters was found between the two groups. Neither was there a difference in the postoperative Kujala Score, Banff II Score, Tegner Score, and Marx Score between the two groups. Length of stay was on average 6.2 days in the AT group and 8.1 days in the OT group. The surgical time was on average 141 min in the OT group and 160 min in the AT group.
conclusionWe found that patients undergoing an arthroscopic trochleoplasty had a comparable outcome with respect to clinical and radiological parameters compared with patients treated by open trochleoplasty.
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