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Published on: March 26, 2015
Complications of medial patellofemoral ligament reconstruction using two transverse patellar tunnels
Loes Schiphouwer1, Akkie Rood2, Siebren Tigchelaar2
1Department of Orthopedic Surgery, Canisius-Wilhelmina Ziekenhuis, PO Box 9015, 6500 GS, Nijmegen, The Netherlands. loes.schiphouwer@gmail.com.
Purpose:
The aim of this study was to report the complication rate after a medial patellofemoral ligament (MPFL) reconstruction using transverse patellar tunnels in a retrospective case series performed in a single institution.
Methods:
Case series of 179 patients (192 knees) that had an MPFL reconstruction, with or without additional bony realignment procedures, between January 2009 and March 2015. Data were obtained from available patient charts.
Results:
Thirty-nine complications (20.3 %) were registered. Twenty-seven of these (14.7 %) were minor. Seven patients (3.6 %) sustained a patellar fracture without adequate trauma. Male gender was a risk factor for patellar fracture (p < 0.001). Sixteen (8.1 %) reported recurrence of instability, of whom 10 (5.1 %) were defined as objective instability (reported dislocation and positive apprehension test).
Conclusion:
This is largest patient series to date in which the complications after a two tunnel MPFL reconstruction are described. The use of transverse patellar tunnels increases the risk of sustaining a patellar fracture.
Level Of Evidence:
IV.
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