Chronic muscle injury - ultrasound

Case contributed by Dr Maulik S Patel

Presentation

Fracture of tibia - fibula - 18 mths back. C/o bulge in proximal - lateral leg during ankle movements.

Patient Data

Age: about 8 yrs
Gender: Male
X-ray

Healed fracture of mid diaphysis of tibia and fibula.

Ultrasound

Affected tibialis anterior muscle shows area of increased echogenesity with loss of normal fibrillar echopattern of muscle fibres. Central tendon could not be identified. Two tiny calcification foci also seen in tendon. Adjacent muscle is involved to a lesser extent.

No muscle hernia.

Case Discussion

Findings of chronic muscle injury in case of old healed fracture of tibia and fibula.

'Bulge' descibed by patient and insepected by clinicial was seen during contraction of tibialis anterior muscle. Due to loss of normal muscle anatomy, angle of contraction of muscle fibres along the central tendon was disturbed. That was the reason of local bulge without any fascial defect ( muscle hernia ).

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Case information

rID: 27360
Case created: 31st Jan 2014
Last edited: 18th Dec 2015
Inclusion in quiz mode: Included

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