Thank you for the opportunity to help you with your question!
A retinaculum refers
to any region on the body in which tendon groups from different muscles pass
under one connective tissue band. Wrist retinacula include the flexor and the
extensor retinacula of the hand. Ankle retinacula include the peroneal
retinacula and the flexor, superior extensor, and inferior extensor retinacula
of the foot.
If a retinaculum is injured, it would cause a situation where the tendons are impaired . Retinaculum does always heal by itself , however , when the tendons and the muscles overstretch , it would not repair naturally. This would require an operation from a specialist.
Please let me know if you need any clarification. I'm always happy to answer your questions.