MNT Orthotic Devices and Nail Bracing

Question 1

What is the primary mechanism of action of a nail brace (orthonyxia) for involuted nails?

Accepted Answer

It applies continuous outward tension to flatten nail curvature and reduce lateral groove pressure

Answer

Nail braces use the elastic memory of composite or wire materials to apply sustained outward force that gradually corrects nail involution over weeks to months.

Question 2

The Fraser (3TO) brace system uses:

Accepted Answer

A thin composite resin strip adhered to the dorsal nail surface with hook-and-eye anchors

Answer

The Fraser/3TO brace is a composite adhesive system that bonds to the nail surface; it is non-invasive and particularly suited for delicate nails and elderly patients.

Question 3

When selecting an orthotic insole for a patient with a dropped metatarsal head, the goal is to:

Accepted Answer

Redistribute plantar pressure away from the painful metatarsal head

Answer

A metatarsal pad or bar placed just proximal to the affected metatarsal head redistributes pressure away from the plantar prominence, reducing pain and callus formation.

Question 4

Nail bracing is contraindicated in patients with:

Accepted Answer

Active nail fold infection, extreme nail fragility, or severely compromised circulation

Answer

Infection, very thin/fragile nails, and poor circulation are contraindications because bracing can worsen infection spread, damage the nail, or impair healing in ischemic tissue.

Question 5

Which measurement is most important before fitting a toe orthosis or pad?

Accepted Answer

Accurate assessment of the toe's pressure points, deformity type, and footwear fit

Answer

Effective orthotic fitting requires identifying the specific pressure points, deformity (e.g., hammer toe, mallet toe), and ensuring the device fits within the patient's footwear.

(MNT) Certified Medical Nail Technician Practice Test

(MNT) Certified Medical Nail Technician Practice Test

MNT Orthotic Devices and Nail Bracing