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A Mouse Model of Ankle-Subtalar Complex Joint Instability
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Lateral Patellar Instability.

Véronique Drapeau-Zgoralski1, Brendan Swift1, Andrew Caines1

  • 1Division of Orthopaedic Surgery, The Ottawa Hospital, Ottawa, Ontario, Canada.

The Journal of Bone and Joint Surgery. American Volume
|February 2, 2023
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Summary
This summary is machine-generated.

Patellar instability treatment requires identifying anatomical factors. Surgical options like MPFL reconstruction and tibial tubercle osteotomy address specific patient risks, improving outcomes and reducing recurrence.

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Area of Science:

  • Orthopedic Surgery
  • Sports Medicine
  • Biomechanics

Background:

  • Patellar instability is a common condition with complex causes.
  • Patient-specific factors like patella alta and increased TT-TG distance influence recurrence risk.
  • Cartilage lesions and fractures are frequent in first-time dislocations, necessitating advanced imaging.

Purpose of the Study:

  • To review current understanding and treatment strategies for patellar instability.
  • To highlight the role of anatomical factor identification in tailoring treatment.
  • To discuss various surgical interventions and their indications.

Main Methods:

  • Review of current literature on patellar instability.
  • Analysis of predisposing anatomical factors.
  • Evaluation of surgical techniques including MPFL reconstruction, tibial tubercle osteotomy, and trochleoplasty.

Main Results:

  • Medial patellofemoral ligament (MPFL) reconstruction shows lower recurrence rates than repair.
  • Tibial tubercle osteotomy is effective for increased TT-TG distance and patella alta.
  • Combined femoral derotational osteotomy and MPFL reconstruction benefit patients with significant femoral anteversion.

Conclusions:

  • Personalized treatment based on anatomical assessment is crucial for managing patellar instability.
  • MPFL reconstruction and tibial tubercle osteotomy are valuable surgical options.
  • Emerging techniques like trochleoplasty address severe dysplasia, with ongoing research into indications and outcomes.