Clinical outcomes of medial patellofemoral ligament reconstruction using FiberTape and knotless SwiveLock anchors |
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| Institution: | 1. Harvard Combined Orthopaedic Residency Program, Boston, MA, USA;2. Department of Orthopedic Surgery, Meir Medical Center, Kfar Saba, Israel;3. Harvard Medical School Orthopaedic Trauma Initiative, Boston MA, USA;4. Massachusetts General Hospital, Department of Orthopaedic Surgery, Boston, MA, USA;1. Department of Musculoskeletal & Ageing Science, Institute of Life Course & Medical Sciences, University of Liverpool, Liverpool L7 8TX, United Kingdom;2. Department of Musculoskeletal Biology, Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool L69 3BX, United Kingdom;3. Liverpool University Hospitals NHS Foundation Trust, Prescot Street, Liverpool L7 8XP, United Kingdom;4. Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia;5. Department of Molecular and Clinical Cancer Medicine, Institute of Translational Medicine, University of Liverpool, Liverpool L3 9TA, United Kingdom;6. Faculty of Health and Life Science, The University of Liverpool, University of Liverpool, Liverpool L7 8TX, United Kingdom;1. Department of Orthopaedic Surgery, Western Health, Footscray Hospital, Level 1 South, Gordon St, Footscray, Melbourne, VIC 3011, Australia;2. Department of Orthopaedics, Latrobe Regional Hospital, 10 Village Avenue, Traralgon West, VIC 3844, Australia;3. OrthoSport Victoria Research Unit, OrthoSport Victoria, Epworth HealthCare, Melbourne, VIC 3121, Australia;1. Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan |
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| Abstract: | BackgroundWe aimed to prospectively investigate the clinical outcomes of medial patellofemoral ligament (MPFL) reconstruction using polyester high-strength suture tape with knotless anchors.MethodForty-three patients (65 knees) were followed for at least 1 year postoperatively, with 27 patients (43 knees) followed for 2 years postoperatively. All patients underwent MPFL reconstruction using polyester high-strength suture tape (FiberTape®; Arthrex) with knotless anchors (SwiveLock®; Arthrex). Repeated dislocation and residual patellar apprehension signs were recorded, and congruence and tilting angles were measured. Changes in Knee Injury and Osteoarthritis Outcome Scale (KOOS) scores and their associations with the preoperative tibial tubercle–trochlear groove (TT-TG) distance were analyzed.ResultsNo repeat dislocations (0%) were observed. One (2.4%) residual positive patellar apprehension sign was noted. The mean tilting angle decreased from 24.8° to 10.7° (P < 0.001), and the mean congruence angle decreased from 24.9° to 4.3° (P < 0.001). At 2 years follow up, all KOOS subscales had improved: pain (92.0 ± 12.9), symptoms (90.2 ± 11.9), activities of daily living (95.7 ± 7.3), sports activity (85.7 ± 16.9), quality of life (87.7 ± 12.9), and patellofemoral (89.0 ± 9.6) outcomes. KOOS subscale scores improved regardless of the preoperative TT-TG distance (21.1 ± 3.5 mm; range, 13.8–29.9 mm).ConclusionsMPFL reconstruction using FiberTape and knotless SwiveLock anchors was performed without sacrificing autologous tissue. No recurrent patellar dislocation was observed during the 2-year follow up period. All KOOS subscale scores improved using FiberTape and SwiveLock anchors in MPFL reconstruction. |
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| Keywords: | Medial patella-femoral ligament Knotless suture anchor FiberTape Artificial ligament Knotless anchor Tibial tubercle–trochlear groove distance |
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