Sonoelastographic Findings in Clubfeet

Area of Science:

• Orthopedics
• Medical Imaging
• Biomedical Engineering

Background:

• Congenital idiopathic clubfoot is characterized by increased soft tissue stiffness.
• Sonoelastography is an emerging imaging technique for assessing tissue stiffness.
• Its application in clubfoot evaluation requires further investigation.

Purpose of the Study:

• To determine if sonoelastography is a useful imaging method for evaluating congenital clubfeet.
• To compare tendon stiffness between clubfeet and normal feet.
• To observe the impact of treatment methods on tendon elastographic appearance.

Main Methods:

• A case-control study involving 10 adolescent patients with unilateral idiopathic clubfeet.
• Compression sonoelastography was used to obtain semi-quantitative fat to tendon ratios.
• Examined tendons included tibialis anterior, tibialis posterior, flexor hallucis longus, peroneus longus, and Achilles tendon.

Main Results:

• A statistically significant difference in strain ratio was found only at the calcaneal insertion of the Achilles tendon, which was stiffer in clubfeet (p = 0.023).
• Other observed differences, though not statistically significant, may indicate pathological changes in clubfeet.
• The study examined tendons at the calcaneal insertion, lengthened zone, and musculotendinous junction.

Conclusions:

• Sonoelastography shows potential as a tool for quantitative and qualitative assessment of soft tissue stiffness in clubfeet.
• Further research is necessary to fully establish its role in clubfoot management.
• The findings suggest sonoelastography could aid in understanding the biomechanical properties of clubfeet.