Knee Surgery, Sports Traumatology, Arthroscopy

, Volume 25, Issue 1, pp 245–250 | Cite as

Complications of medial patellofemoral ligament reconstruction using two transverse patellar tunnels

  • Loes SchiphouwerEmail author
  • Akkie Rood
  • Siebren Tigchelaar
  • Sander Koëter



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.


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.


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).


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



Medial patellofemoral ligament MPFL Patellar instability MPFL reconstruction Complications 


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Copyright information

© European Society of Sports Traumatology, Knee Surgery, Arthroscopy (ESSKA) 2016

Authors and Affiliations

  1. 1.Department of Orthopedic SurgeryCanisius-Wilhelmina ZiekenhuisNijmegenThe Netherlands

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