Journal article
Femoral Tunnel Placement in Medial Patellofemoral Ligament Reconstruction
The Iowa orthopaedic journal, Vol.33, pp.58-63
2013
PMCID: PMC3748893
PMID: 24027462
Appears in Diamond Open Access
Abstract
Medial Patellofemoral Ligament (MPFL) reconstruction is an accepted treatment for recurrent patellofemoral instability when patients have normal alignment and deficient proximal medial restraints. There are several reports of malpositioned femoral tunnels leading to poor outcomes. The purpose of this study was to analyze femoral tunnel placement after MPFL reconstruction and correlate this with outcomes. We performed a retrospective review of MPFL reconstructions done at our institution from 2006-2010. We then evaluated lateral radiographs and measured the distance between the radiographic femoral MPFL isometric point and the center of the femoral tunnel. We also evaluated post-operative KOOS scores. The average distance from the femoral tunnel to the MPFL isometric point was 13.25 mm. Sixty-four percent of tunnels were placed greater than nine millimeters from our isometric point and deemed to be malpositioned. There was no statistically significant difference in outcomes scores in patients with anatomically placed MPFL tunnels when compared to those placed non-anatomically. Sixty-four percent of MPFL reconstruction femoral tunnels were placed non-anatomically, but this did not correlate with a worse outcome. Graft tension, trochlear groove anatomy, patellar height, and dynamic restraints all play important roles in outcomes after MPFL reconstruction. Even though non-anatomic tunnel placement does not guarantee a poor result, we believe an anatomic tunnel placement will give the best chance to maximize graft function and outcome.
Details
- Title: Subtitle
- Femoral Tunnel Placement in Medial Patellofemoral Ligament Reconstruction
- Creators
- Mark McCarthy - University of Iowa Department of Orthopaedics and Rehabilitation Iowa CityT J Ridley - University of Iowa Carver College of Medicine Iowa CityMatthew Bollier - University of Iowa Department of Orthopaedics and Rehabilitation Iowa CityBrian Wolf - University of Iowa Department of Orthopaedics and Rehabilitation Iowa CityJohn Albright - University of Iowa Department of Orthopaedics and Rehabilitation Iowa CityAnnunziato Amendola - University of Iowa Department of Orthopaedics and Rehabilitation Iowa City
- Resource Type
- Journal article
- Publication Details
- The Iowa orthopaedic journal, Vol.33, pp.58-63
- Publisher
- Dept. of Orthopaedics, The University of Iowa; United States
- PMID
- 24027462
- PMCID
- PMC3748893
- ISSN
- 1541-5457
- eISSN
- 1555-1377
- Language
- English
- Date published
- 2013
- Academic Unit
- Orthopedics and Rehabilitation; Physical Therapy and Rehabilitation Science
- Record Identifier
- 9984040203702771
Metrics
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