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Knee Surgery, Sports Traumatology, Arthroscopy

, Volume 21, Issue 2, pp 305–310 | Cite as

Anatomic study of the attachment of the medial patellofemoral ligament and its characteristic relationships to the vastus intermedius

  • Tomoyuki Mochizuki
  • Akimoto Nimura
  • Tomohiko Tateishi
  • Kumiko Yamaguchi
  • Takeshi Muneta
  • Keiichi Akita
Knee

Abstract

Purpose

The aim of this study was to investigate the attachment of the medial patellofemoral ligament (MPFL) using cadaver specimens and establish an anatomic basis for optimal MPFL reconstruction to achieve better patella stability.

Methods

Sixteen knees of eight cadavers were used in this study. The relationship of the MPFL with quadriceps muscles was investigated from outside after removal of the distal part of the vastus medialis and the rectus femoris and then evaluated from intra-articular side after release of lateral margin of the vastus lateralis muscle, patella and patella tendon.

Results

The proximal fibres of MPFL were mainly attached to the vastus intermedius tendon, without tight adhesion to the vastus medialis. The distal fibres of MPFL were interdigitated with the deep layer of the medial retinaculum that was attached to the medial margin of the patella tendon.

Conclusion

These findings imply that MPFL, which was directly attached to the vastus intermedius and patella and indirectly continued to the patella tendon, could keep pulling them medially as one unit and consequently make the patella move smoothly on the trochlea during whole movement of the knee. Clinically, dysfunction of both proximal and distal MPFL fibres should be considered in the diagnosis and treatment of patella instability after traumatic patella dislocation. MPFL reconstruction with both fibres has a possibility to lead ideal function of MPFL and better instability of the patella.

Keywords

Anatomy Medial patellofemoral ligament (MPFL) Vastus intermedius Vastus medialis 

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Copyright information

© Springer-Verlag 2012

Authors and Affiliations

  • Tomoyuki Mochizuki
    • 1
  • Akimoto Nimura
    • 2
  • Tomohiko Tateishi
    • 3
  • Kumiko Yamaguchi
    • 2
  • Takeshi Muneta
    • 4
  • Keiichi Akita
    • 2
  1. 1.Section of Joint Reconstruction, Graduate SchoolTokyo Medical and Dental UniversityTokyoJapan
  2. 2.Unit of Clinical Anatomy, Graduate SchoolTokyo Medical and Dental UniversityTokyoJapan
  3. 3.Department of Orthopedic SurgeryDouai Memorial HospitalTokyoJapan
  4. 4.Section of Orthopedic Surgery, Graduate SchoolTokyo Medical and Dental UniversityTokyoJapan

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