3-4 days free worldwide delivery

Connecting Biomechanics and Morton’s Neuroma

by MASS4D® Prescription Orthotics October 05, 2016

Morton's Neuroma

The term ‘neuroma’ refers to the swelling or thickening of a nerve tissue in any part of the body. The continual compression or stretching of the nerve could eventually lead to permanent nerve damage, which is why the treatment of neuroma is of the utmost importance.

The most common site for a neuroma is the foot, particularly in the ball of the foot between the third and fourth metatarsal bones. This is called Morton’s Neuroma, and the affected interdigital nerve is microscopically seen to have extensive concentric perineural fibrosis.

The interdigital neuroma (as it is sometimes called) occurs in the nerve at the distal end of the metatarsal bone, just before the nerve divides itself into two branches. At the level of the metatarsal heads, the interdigital nerve traverses inferior to the intermetatarsal ligament. At this site, repetitive irritation to the interdigital nerve causes an enlargement of its protective sheath in the foot and the formation of a neuroma. 

Any puncture wounds or lacerations can also cause injury to the nerve, forming a traumatic neuroma in the process.


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


The neuropathic pain associated with the condition is often described as a burning or shooting pain in the forefoot. There may also be a tingling sensation or numbness in one or two of the metatarsal heads.

Patients often feel like removing their shoes and rubbing the ball of the foot to ease the pain.

Among the biomechanical factors responsible for Morton’s Neuroma, hyperpronation plays a significant role by causing the forefoot to become unstable, and the metatarsal heads to rotate slightly.

The constant pinching of the interdigital nerve by the metatarsal heads on rotation enlarges the nerve sheath, ultimately leading to the development of a neuroma.

With changes to the position of the hip, knee or pelvis brought on by hyperpronation, there is alteration in the way the foot interacts with the ground. This often results in metatarsal instability. Instability of the first metatarsal, leads to insufficient pressure in the big toe joint and consequently, an overload of stress on the adjacent metatarsals and the interdigital nerve.

In order to successfully treat the condition, it becomes vital to reduce the excessive force on the affected nerve by correcting the biomechanical abnormalities through the use of custom made orthotics such as the MASS4D® foot orthotics.

These full contact orthotics provide the support needed for the foot to reduce compression on the interdigital nerve, giving it time to heal itself by spreading the metatarsals apart and taking the pressure off the neuroma.

Copyright 2016 MASS4D® All rights reserved.


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


Related Links

Why MASS4D® Orthotics?
Hyperpronation as a Cause of Hallux Valgus
Custom vs Non Custom Orthotics

References:

  1. Stephen M. Pribut (2003) Morton’s Neuroma: Cause and Treatment. American Academy of Podiatric Sports Medicine. Retrieved from http://www.aapsm.org
  2. Kevin Barry (2016) Physical Medicine and Rehabilitation for Morton Neuroma. Medscape. Retrieved from http://emedicine.medscape.com/

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