special test for the alignment of the ankle

Special test for the alignment of the ankle :

  • Alignment tests are used to determine the relation of the leg to the hindfoot & the relation of the hindfoot to the forefoot.
  • These tests are orthopedic or clinical.
  • These tests are applied to the clinic by the therapist or doctor.
  • These tests applied the check the alignment of the ankle

Name of the special test of the alignment of the ankle :

  1. Coleman block test
  2. Forefoot – heel alignment
  3. Leg-heel alignment

Purpose of the three alignment tests :

  • These tests are used to differentiate functional from anatomical means structural deformities or asymmetries.

Coleman block test :-

Coleman block test
Coleman block test
  • This Coleman block test differentiates a hindfoot Varus which is resulting from a forefoot valgus from a hindfoot Varus which is resulting from a tight tibialis posterior.
  • If the examiner is found to have a hindfoot Varus in standing into the patient, then the examiner places a lift/block under the lateral side of the forefoot.
  • Result = if the hindfoot Varus is corrected, it indicates the hindfoot is flexible & the hindfoot Varus is due to a plantarflexed first ray or a valgus forefoot.
  • If the hindfoot Varus is not correct, it is indicated to the tightness of the tibialis posterior muscle.

Forefoot – heel alignment :-

Technique :

Forefoot - heel alignment
Forefoot – heel alignment
  • The patient position for the test is supine with the feet extending at the end of the examining table.
  • The examiner positions the subtalar joint in the supine neutral position.
  • While maintaining this position, the examiner pronates the midtarsal joints maximally & then observes the relationship between the vertical axis of the heel & the plane of the second thought fourth metatarsal heads.

Result :

  • Normally, this alignment plane is perpendicular to the vertical axis.
  • If the patient’s medial side of the foot is raised, it is indicated to the patient has a forefoot varus.
  • If the patient’s lateral side of the foot is raised, it is indicated to the patient has a forefoot valgus.

Leg-heel alignment :-

Technique :

Leg-heel alignment
Leg-heel alignment
  • In this test patient’s position for the test is the prone position with the foot is extending over the end of the examining table.
  • The examiner puts a mark on the midline of the calcaneus bone at the insertion of the Achilles tendon.
  • The examiner makes a second mark approximately 1 cm distal to the first mark & as close to the midline of the calcaneus as possible.
  • A calcaneal bone line is made when to join the two marks which are drawn by the therapist.
  • Then the examiner draws two marks in the midline on the lower third of the leg.
  • When these two marks are joined, which is forming the tibial line & it represents the longitudinal axis of the tibia.
  • The examiner then places the subtalar joint is held in neutral, the examiner looks at the two lines.

Result :

  • If these two lines are parallel/in slight Varus means 2′ to 8′, in this situation the leg-to-heel alignment is considered normal.
  • If the heel is everted, the patient is suffering from hindfoot valgus.
  • If the heel is inverted, the patients suffer from hindfoot Varus.
Vaishali Ladva
Author: Vaishali Ladva

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