When Is Foot Surgery Needed for Charcot-Marie-Tooth?

Yes, surgery can be a highly effective option for correcting high arches and hammer toes in Charcot-Marie-Tooth (CMT) disease, but it is typically considered only after non-surgical options are no longer enough. Because CMT causes progressive muscle weakness and imbalance in the feet and lower legs, structural deformities often worsen over time ^[1][2]. While physical therapy and orthotics (custom shoe inserts or braces like Ankle-Foot Orthoses, or AFOs) are the first line of defense to keep you walking safely, they cannot physically fix the underlying bone and joint changes ^[3][4]. When these tools stop working or deformities become too severe, orthopedic surgery can help realign the foot, balance muscle strength, reduce pain, and improve your ability to walk comfortably ^[1][5].

When Is Surgery Recommended?

Deciding to have foot reconstructive surgery is a major step. Doctors generally recommend considering surgery when:

• Orthotics are failing: Your AFOs no longer provide stability, cause severe skin breakdown or blisters, or simply cannot fit around the new shape of your foot ^[2][4].
• Pain becomes unmanageable: You experience constant, severe pain from walking on the sides of your feet or from calluses developing under areas of high pressure ^[2][6].
• Deformity progresses rapidly: Your high arches (cavovarus foot) or hammer toes—where the toes bend downward like a claw—are worsening at a pace that threatens your ability to walk independently or stand safely ^[2][4].

Common Surgical Procedures for CMT

Because CMT changes the foot in complex ways, surgery is rarely a single, simple procedure. Surgeons typically combine several techniques during one operation to fix both the bones and the soft tissues ^[7][8].

• Tendon Transfers: CMT causes certain muscles in the lower leg to weaken faster than others, creating an imbalance that pulls the foot out of shape ^[1][2]. In a tendon transfer, the surgeon takes a working tendon and moves it to a new location. This helps replace the function of weakened muscles and restores balance to the foot, which is crucial for long-term stability ^[7][8].
• Osteotomies: An osteotomy involves cutting and repositioning a bone to correct its alignment ^[9][10]. This is commonly used to flatten a severe high arch or straighten a heel that curves too far inward.
• Bone Fusions (Arthrodesis): If the joints in the foot have become completely rigid or severely damaged by walking on an uneven surface for years, the surgeon may perform a fusion ^[11]. This involves joining two or more bones together permanently to create a stable, pain-free foundation, though it will permanently reduce the flexibility of the foot ^[11].

Recovery, Risks, and Life After Surgery

Recovery from reconstructive foot surgery is a major undertaking. It typically involves a lengthy period of casting and several weeks where you cannot put any weight on your foot, followed by extensive physical therapy to rebuild strength, improve walking stability, and manage joint contractures ^[4][2].

As with any major operation involving bones and soft tissues, there are surgical risks. These can include infection, problems with wound healing, or bones failing to fuse completely together (non-union) ^[7][11]. It is also important to understand your postoperative goals: surgery often aims to reshape your foot so that you can comfortably fit back into an AFO without pain, rather than eliminating the need for braces entirely ^[2][4]. Furthermore, because CMT continues to cause nerve degeneration, you may need future procedures if new muscle imbalances develop over time ^[1][5].

The Importance of a CMT-Specialized Surgeon

It is critical to work with an orthopedic surgeon who has extensive experience specifically treating CMT. General orthopedic surgeons or podiatrists may not be familiar with the progressive nature of the disease ^[12][6]. A CMT-specialized surgeon understands that they are not just fixing a static foot problem; they must anticipate how your muscles will continue to weaken over time ^[12]. Seeking care through a specialized, team-based clinic—such as a recognized Center of Excellence—is strongly recommended ^[13][14].

Specialists are skilled at performing careful physical exams to determine which parts of your foot are still flexible and which are fixed, ensuring they choose the exact right combination of tendon transfers and bone surgeries ^[6][12]. Research shows that having foot reconstructive surgery performed by a specialized foot and ankle team familiar with CMT leads to significant improvements in pain relief, foot alignment, and overall quality of life ^[6][13].