In Jones tenosuspension, which tendon is transferred to the proximal phalanx?

In Jones tenosuspension, which tendon is transferred to the proximal phalanx?

• A. EHL
• B. FDL
• C. EDL
• D. FDL and EDL

Answer: (A)

The key idea is to modify the toe’s extensor mechanism by transferring a tendon to create a stable, plantarly directing pull on the proximal phalanx. In Jones tenosuspension, a slip of the extensor hallucis longus is detached and reattached to the proximal phalanx of the big toe. This reattachment changes the line of pull so the toe is held more plantarly, helping to suspend the toe and reduce hyperextension at the metatarsophalangeal joint. The extensor hallucis longus is the natural choice here because it directly powers the big toe and can be redirected to achieve this targeted stabilization without compromising the function of the other toes. Using the flexor digitorum longus or extensor digitorum longus would disrupt other toes’ mechanics and doesn’t provide the same direct, focused control of the big toe’s position.

The key idea is to modify the toe’s extensor mechanism by transferring a tendon to create a stable, plantarly directing pull on the proximal phalanx. In Jones tenosuspension, a slip of the extensor hallucis longus is detached and reattached to the proximal phalanx of the big toe. This reattachment changes the line of pull so the toe is held more plantarly, helping to suspend the toe and reduce hyperextension at the metatarsophalangeal joint. The extensor hallucis longus is the natural choice here because it directly powers the big toe and can be redirected to achieve this targeted stabilization without compromising the function of the other toes. Using the flexor digitorum longus or extensor digitorum longus would disrupt other toes’ mechanics and doesn’t provide the same direct, focused control of the big toe’s position.