Patella dislocations

@article{Dath2006PatellaD,
  title={Patella dislocations},
  author={Roshan Dath and Jagannath Chakravarthy and Km Porter},
  journal={Trauma},
  year={2006},
  volume={8},
  pages={11 - 5}
}
compartments.The patella is the largest sesamoid bone in the body and is located within the quadriceps tendon. The articular surface is gently convex and made up of seven facets, six of which are divided into medial and lateral parts by a central ridge. The lateral facets are larger than the medial ones. The narrow medial surface is further subdivided by two vertical strips. The most medial facet is called the odd facet as it is in contact with the femoral condyle only in flexion (Goodfellow et… 
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Influence of posterior lateral femoral condyle geometry on patellar dislocation
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Multiplanar hypoplasia of the lateral femoral condyle resulting in a valgus knee is a risk factor for patellar instability in young patients without osteoarthritis or joint hypermobility.
Surgical versus non-surgical interventions for treating patellar dislocation.
TLDR
There was very low quality but consistent evidence that participants managed surgically had a significantly lower risk of recurrent dislocation following primary patellar dislocation at two to five years follow-up.
Surgical versus non-surgical interventions for treating patellar dislocation.
TLDR
There is insufficient high quality evidence to confirm any significant difference in outcome between surgical or non-surgical initial management of people following primary patellar dislocation, and Adequately powered randomised, multi-centre controlled trials, conducted and reported to contemporary standards are recommended.
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Radiograph remains an important diagnostic tool for detection of musculoskeletal diseases despite recent advances in computed tomography (CT) or magnetic resonance imaging (MRI).

References

SHOWING 1-10 OF 36 REFERENCES
Patello-femoral joint mechanics and pathology. 1. Functional anatomy of the patello-femoral joint.
TLDR
The odd facet is shown to be a habitual non-contact area and the ridge to be subject to high load, observations which correlate with cartilage lesions described in Part 2 of the paper.
Indications in the treatment of patellar instability.
TLDR
If surgery is performed, current evidence suggests techniques aimed at repair or reconstruction of the passive retinacular restraints are as effective as more extensive procedures at preventing subsequent dislocations.
Medial Soft Tissue Restraints in Lateral Patellar Instability and Repair
TLDR
The medial patellofemoral ligament was found to be the major medial ligamentous stabilizer of the patella and the patelotibial and patellomeniscal ligament complex played an important secondary role in restraining lateral patellar displacement.
Current concepts of lateral patella dislocation.
Surgical treatment of recurrent dislocation of the patella.
TLDR
Retensioning of the medial structures and lateral release are effective in reducing the patella within the sulcus and transposition of the tibial tuberosity is appealing, clinical advantages are less evident.
Influence of soft structures on patellar three-dimensional tracking.
TLDR
The differences between the intact and dissected knee kinematics suggested that control over patellar motion is ensured by the transverse soft-tissue structures near extension and by the patellofemoral joint geometry during further flexion.
Proximal and distal reconstruction of the extensor mechanism for patellar subluxation.
TLDR
Treatment of the chondromalacia developing secondary to altered extensor mechanism mechanics can be by simple chondrectomy provided that the causal mechanical abnormalities are modified.
Recurrent dislocation of patella: three kinds of surgical treatment.
TLDR
The authors compare three surgical techniques for treatment of recurrent dislocation of patella and believe that a single surgical option is insufficient, and that the best solution for each individual case should be chosen according to precise indications.
Force analysis of the patellar mechanism
TLDR
It has been concluded that for an accurate prediction of the patellofemoral joint reaction, the force analysis needs to be based on the geometry of the contact surfaces, which implies that the mechanical consequences of surgical procedures involving tibial tubercle relocation cannot be inferred simply on the basis of their effect onThe patellar mechanism angle.
Patellar dislocation after total knee arthroplasty.
TLDR
The cause of patellar dislocation after total knee arthroplasty was error in surgical technique in this series, and revision of the component should be performed in those with malaligned component.
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