Complications of medial patellofemoral ligament reconstruction using two transverse patellar tunnels
- 511 Downloads
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
KeywordsMedial patellofemoral ligament MPFL Patellar instability MPFL reconstruction Complications
- 3.Calvo Rodriguez R, Figueroa Poblete D, Anastasiadis Le Roy Z, Etchegaray Bascur F, Vaisman Burucker A, Calvo Mena R (2015) Reconstruction of the medial patellofemoral ligament: evaluation of the clinical results of autografts versus allografts. Rev Esp Cir Ortop Traumatol 59(5):348–353PubMedGoogle Scholar
- 10.Hinterwimmer S, Imhoff AB, Minzlaff P, Saier T, Rosenstiel N, Hawe W, Feucht MJ (2013) Anatomical two-bundle medial patellofemoral ligament reconstruction with hardware-free patellar graft fixation: technical note and preliminary results. Knee Surg Sports Traumatol Arthrosc 21(9):2147–2154CrossRefPubMedGoogle Scholar
- 21.Mulliez A, Lambrecht D, Verbruggen D, Van Der Straeten C, Verdonk P, Victor J (2015) Clinical outcome in MPFL reconstruction with and without tuberositas transposition. Knee Surg Sports Traumatol Arthrosc. doi: 10.1007/s00167-015-3654-0
- 31.Stupay KL, Swart E, Shubin Stein BE (2015) Widespread implementation of medial patellofemoral ligament reconstruction for recurrent patellar instability maintains functional outcomes at midterm to long-term follow-up while decreasing complication rates: a systematic review. Arthroscopy 31(7):1372–1380CrossRefPubMedGoogle Scholar