Conservative Management and Surgical Options for Morton's Neuroma and Metatarsalgia

Footwear Modifications and Orthotics

The American Diabetes Association recommends use of appropriately fitting footwear that cushions the feet and redistributes pressure, particularly for patients with neuropathy or increased plantar pressures 1
For patients with bony deformities, extra wide or deep shoes are recommended 1
Custom-molded shoes may be necessary for severe bony deformities including Charcot foot that cannot be accommodated with commercial therapeutic footwear 1
Felted foam in combination with appropriately fitting footwear can be considered when offloading devices are not available 2

For neuropathic plantar metatarsal head ulcers where non-surgical offloading fails, Achilles tendon lengthening in combination with an offloading device is conditionally recommended (Moderate evidence) 3
Metatarsal head resection in combination with an offloading device is conditionally recommended (Low evidence) 2
For neuropathic hallux ulcers where non-surgical treatment fails, joint arthroplasty in combination with an offloading device may be beneficial 2
For neuropathic plantar ulcers on metatarsal heads 2-5 where non-surgical treatment fails, metatarsal osteotomy combined with an offloading device can be considered 2
Digital flexor tenotomy is strongly recommended for neuropathic plantar or apex ulcers on digits 2-5 secondary to flexible toe deformity 2

The American College of Radiology recommends MRI as a sensitive and reliable method for evaluating Morton's neuroma with high sensitivity (87-93%) and specificity (68-100%) 4
Ultrasound is also effective for diagnosis, with comparable sensitivity to MRI (83-96% vs 82-96%) and better specificity in some studies 5
For plantar plate tears associated with metatarsalgia, MRI shows higher diagnostic accuracy than ultrasound 5

The International Working Group on the Diabetic Foot recommends non-removable knee-high offloading devices as first-line treatment for patients with diabetes and neuropathic plantar forefoot or midfoot ulcers 2
When non-removable devices are contraindicated or not tolerated, removable knee-high or ankle-high offloading devices should be considered 2
Conventional footwear or standard therapeutic footwear should not be used over an offloading device 2

Metatarsal pads placed behind the metatarsal heads can relieve focal pressure and transfer load more proximally, as recommended by the American Diabetes Association 6, 7
Prefabricated insoles or custom orthotic devices can help redistribute plantar pressures, according to the American Diabetes Association 7
Regular calf-muscle stretching exercises help reduce tension on the forefoot, as suggested by the American Academy of Family Physicians 8
Weight loss should be recommended for overweight patients to decrease forefoot pressure, as advised by the American Academy of Family Physicians 8
Activity limitation and avoidance of barefoot walking can reduce symptoms, as recommended by the American Academy of Family Physicians 8
Nonsteroidal anti-inflammatory drugs (NSAIDs) can help manage pain and inflammation, according to the American Academy of Family Physicians 8
In appropriate cases, corticosteroid injections may be considered for persistent pain, as suggested by the American Academy of Family Physicians 8

Surgical intervention should be considered only when conservative measures fail after 2-3 months of appropriate treatment, as recommended by the American Academy of Family Physicians 8

Initial treatment (0-6 weeks) may include metatarsal pads or orthotic devices, as recommended by the American Diabetes Association 6, 7
Initial treatment (0-6 weeks) may also include calf-muscle stretching exercises, as suggested by the American Academy of Family Physicians 8
If no improvement after 6 weeks, consider continuing initial treatments, including corticosteroid injections in appropriate cases, as advised by the American Academy of Family Physicians 8
If no improvement after 2-3 months, consider surgical intervention based on specific diagnosis, as recommended by the American Academy of Family Physicians 8