Abstract
Background
We aimed to prospectively investigate the clinical outcomes of medial patellofemoral
ligament (MPFL) reconstruction using polyester high-strength suture tape with knotless
anchors.
Method
Forty-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.
Results
No 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).
Conclusions
MPFL 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.
Keywords
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Article info
Publication history
Published online: June 10, 2022
Accepted:
May 27,
2022
Received in revised form:
April 5,
2022
Received:
December 29,
2020
Identification
Copyright
© 2022 Elsevier B.V. All rights reserved.
