3-4 days free worldwide delivery

Femoroacetabular Impingement Syndrome

by MASS4D® Prescription Orthotics April 26, 2017

Femoroacetabular Impingement Syndrome

Femoroacetabular Impingement Syndrome (FAI) occurs as a result of frequent pathologic contact between the femoral head-neck junction in the anterosuperior region and the acetabulum labrum, leading to articular and labral damage within the hip joint.

One classification of the condition as per a study conducted by Emara et al. involves functional resemblance to a cam impingement with the loss of asphericity from the femoral head to the neck anterolaterally, combined with a relative retroversion of the femoral head or a prominent portion engaging the articular surface of the acetabulum.

Another classification is a pincer impingement deformity involving a focal or global overcoverage of the femoral head by the anterior rim which produces a linear contact between the rim and femoral neck.

The pathophysiology of the two types of FAI were outlined in detail by Khan et al. in their study, with an emphasis on the predictable patterns of injury; the cam-type impingement has been found to occur mostly in young men, resulting in shear forces being applied from the aspherical portion of the femoral head as it articulates with the acetabulum.


Offer your Patients a Custom Calibrated Insole with a 98% Patient Satisfaction Rate     know more


This results in chondral delamination and detachment over time with the clinical presentation of the labral injury in cam-type FAI often involving detachment at the chondrolabral junction.

The pincer-type impingement, according to the authors, is seen frequently in women caused by repeated contact stress of a normal femoral head-neck against an abnormal area of the acetabulum – this could either be focal (for example, acetabular retroversion) or global (such as coxa profunda).

The biomechanical functioning of the hip is gradually affected by the consequent degeneration and tearing of the labrum in addition to the postero-inferior contre-coup cartilage lesion on the femoral head.

In order to decrease the abnormal mechanical contact between the acetabular edge and the femoral neck, it is important to improve hip range of motion which can also help reduce the risk of an individual developing pathologies to joints proximal and distal in the kinetic chain such as the pelvis and knee.

An active rehabilitation programme with stretching exercises designed to enhance hip external rotation and abduction in extension and flexion should be implemented in conjunction with the use of supportive foot devices

Such devices can help in the treatment and management of any biomechanical discrepancies that could potentially increase abnormal movement patterns of the lower limbs including the hip – either preventing the onset of FAI and associated pathologies or improving ambulation in individuals diagnosed with FAI and associated pathologies.

Copyright 2017 MASS4D® All rights reserved. 


Offer your Patients a Custom Calibrated Insole with a 98% Patient Satisfaction Rate     know more


Related Links

 

References:

  1. Khan, M., Bedi, A., Fu, F., Karlsson, J., Ayeni, O. R., Bhandari, M. (2016) New Perspectives on Femoroacetabular Impingement Syndrome. Nature Reviews Rheumatology: March 2016, Vol. 12, No. 5. DOI: 10.1038/nrrheum.2016.17
  2. Emara, K., Samir, W., Motasem, E. H., Ghafar, K. A. E. (2011) Conservative Treatment for Mild Femoroacetabular Impingement. Journal of Orthopaedic Surgery: Vol. 19, No. 1, pp. 41-45. DOI: 10.1177/230949901101900109 

Leave a comment

Comments will be approved before showing up.


Also in Clinicians Blog

Plantar Fibromatosis
Plantar Fibromatosis

by MASS4D® Prescription Orthotics August 05, 2018

Plantar fibromatosis, also known as Ledderhose disease, refers to a benign fibrous proliferation that occurs in the plantar aponeurosis in the form of single or multiple nodules on the medial plantar surface of the foot.

Read More

Treating The Metatarsus Adductus Foot
Treating The Metatarsus Adductus Foot

by MASS4D® Prescription Orthotics July 29, 2018

There are several factors that need to be considered in the treatment of a metatarsus foot. Treatment is necessitated due to alterations in gait that can lead to psychomotor disruption and consequently, increased incidences of falls.

Read More

Sacral Stress Injuries
Sacral Stress Injuries

by MASS4D® Prescription Orthotics July 15, 2018

Sacral stress injuries refer to insufficiency fractures that occur due to repetitive stress in the sacrum, sacral alae and iliac wings. Conservative measures can be adopted following an early diagnosis. This can be in the form of physiotherapy and supportive devices for the foot for improved mobility.

Read More