3-4 days free worldwide delivery

Infantile Tibia Vara

by MASS4D® Prescription Orthotics May 03, 2017

Infantile Tibia Vara

Identified by Blount in 1973, infantile tibia vara (ITV) refers to a developmental disorder marked by the abnormal endochondral ossification of the medial aspect of the proximal tibial physis that results in multiplanar deformities of the lower limb.

The suppression in growth caused by excessive pressure on the posteromedial proximal tibial physis results in bowing of legs which could either be physiological or pathological in nature.

Sanjeev Sabharwal, of the Department of Orthopedics at New Jersey Medical School, identifies two clinically distinct forms of Blount disease – early-onset (infantile) and late-onset – depending on whether the limb deformity develops before or after the age of four years.

The author mentions obesity as a contributing factor to the condition with his studies having established a linear relationship between the magnitude of obesity and biplanar radiographic deformities in children with the infantile form of Blount disease.


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


Children with early-onset Blount disease, irrespective of a lower body mass index, were observed to have more severe varus and procurvatum deformities of the proximal part of the tibia than did adolescents with the same disease.

Treatment strategies formulated for infantile tibia vara need to focus on achieving a normally aligned lower extremity with normal joint orientation and equal limb lengths at skeletal maturity.

While studying the efficacy of an orthotic intervention in the treatment of infantile tibia vara, Raney et al. reviewed patients who received knee-ankle-foot orthosis for genu varum at Shriners Hospital in Tampa, Florida.

The authors reported that 90 percent of the cases were treated successfully with orthoses which were discontinued when neutral clinical and radiographic alignment were obtained; the study supported orthotic interventions as viable early treatment options for patients younger than 3 years with a metaphyseal-diaphyseal angle greater than sixteen degrees.

Among the long-term follow-up studies of patients with Blount disease, as mentioned by Sabharwal, a number of interesting observations were reported – chiefly the onset of arthritis in the knees at an average age of thirty-eight years.

One of the biomechanical implications of mild leg length discrepancy is excessive or abnormal mechanical joint loading, which is recognised as a key risk factor for knee osteoarthritis.

With postural alignment as one of the main goals of treatment programmes for infantile tibia vara, MASS4D® foot orthotics with heel lifts can be used to further treat structural leg length discrepancy of up to 10mm to restore alignment and optimal lumbopelvic biomechanics after the person has reached skeletal maturity. 

Excessive pronation on the long leg side can be treated with corrective orthotics in conjunction with heel lifts on the ipsilateral foot, to balance the sacral base and minimise compensatory scoliosis.

By optimally redirecting the mechanical forces acting on the lower extremity, highly customised orthotics such as MASS4D® can also be used to cause a decrease in the pathological loading forces acting on the affected knee, improving gait function in the patient and protecting the musculoskeletal system from any further damage.

Copyright 2017 MASS4D® All rights reserved.


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


Related Links

Obesity and Foot Problems
Leg Length Discrepancy
Knee OA

References:

  1. Sabharwal, S. (2009) Blount Disease. The Journal of Bone and Joint Surgery: July 2009, Vol. 91, pp. 1758-1776. doi:10.2106/JBJS.H.01348
  2. Raney, E., Topoleski, T., Yaghoubian, R., Guidera, K. J., Marshall, J. (1998) Orthotic Treatment of Infantile Tibia Vara. Journal of Paediatric Orthopaedics: September/October 1998, Vol. 18, No. 5, pp. 670-674. 

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