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Knee Surgery, Sports Traumatology, Arthroscopy

, Volume 25, Issue 9, pp 2708–2714 | Cite as

Clinical outcome in MPFL reconstruction with and without tuberositas transposition

  • A. Mulliez
  • D. LambrechtEmail author
  • D. Verbruggen
  • C. Van Der Straeten
  • P. Verdonk
  • J. Victor
Knee

Abstract

Purpose

There are several surgical options for recurrent patella dislocations. As the reconstruction of the medial patellofemoral ligament (MPFL) has been proven to restore stability, it has become more accepted. Aim of this study was to investigate the clinical outcome after MPFL reconstruction as an isolated procedure or in association with a transposition of the tibial tubercle (in case of patella alta or an excessive TT–TG) in a large prospective cohort study. Additionally, the effect on patellar height was analysed radiographically using the Caton–Deschamps index.

Methods

In a large prospective cohort study of 129 knees in 124 patients (81 females, 48 males, mean age 22.8 ± 7.7 years), 91 knees received primary MPFL reconstruction (group 1) and 38 were a combination with a transposition of the tibial tubercle (group 2). The clinical follow-up was evaluated using KOOS and Kujala scores preoperatively and 1 year postoperatively. Patient satisfaction, complications and revision surgery were recorded.

Results

Overall, Kujala improved significantly from 53.5 (SD 22.7) preoperatively to 74.7 (SD 20.5) postoperatively (p < 0.01). All KOOS subdomains improved significantly (p < 0.01). No significant difference for Kujala score between groups was noticed. Revision rate was (5/129) 3.9 %. Reconstruction was supplemented with a transfer of the tibial tuberosity in (38/129) 29.4 % of the cases and shows a comparable outcome.

Conclusion

MPFL reconstruction is a viable treatment option for episodic patellar dislocation. A concomitant tuberositas transposition is useful in selected patients.

Level of evidence

I.

Keywords

Medial patellofemoral ligament MPFL Patellar instability Tibial tuberosity transfer 

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Copyright information

© European Society of Sports Traumatology, Knee Surgery, Arthroscopy (ESSKA) 2015

Authors and Affiliations

  1. 1.Department of Orthopaedic Surgery and TraumatologyGhent University HospitalGhentBelgium
  2. 2.Department of Physiotherapy and Orthopaedic Surgery, Faculty of MedicineGhent UniversityGhentBelgium
  3. 3.Department of Orthopaedic SurgeryMonica HospitalsAntwerpBelgium

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