Curled or claw toes after a stroke can be straightened through a combination of stretching, splinting, electrical stimulation, injections, and in some cases surgery. The approach depends on how long the toes have been curled, how stiff they’ve become, and whether the underlying spasticity is mild or severe. About 25% of stroke survivors develop spasticity, and roughly 1 in 10 with muscle weakness go on to develop a severe form that can lock toes into painful, fixed positions.
Why Toes Curl After a Stroke
A stroke damages the brain’s ability to send signals that keep muscles in balance. Normally, your brain sends both “activate” and “relax” commands down the spinal cord to your leg and foot muscles. When the pathways carrying those commands are disrupted, the signals become lopsided. The muscles that curl your toes inward (the flexors) get overactivated, while the muscles that straighten them (the extensors) can’t fire strongly enough to counteract the pull.
This imbalance is called spasticity. It’s driven by a specific pathway in the brainstem that becomes hyperactive once it loses its usual regulation from the damaged brain tissue. The result is a velocity-dependent tightness: the faster you try to move or stretch the toes, the harder the muscles resist. Over time, if the toes stay curled, the tendons and soft tissues shorten and stiffen, turning a flexible curl into a rigid deformity that’s much harder to reverse. That’s why early and consistent intervention matters so much.
Stretching and Range-of-Motion Exercises
Daily stretching is the foundation of any toe-straightening program. The goal is to maintain or restore the length of the flexor tendons before they permanently shorten. You or a caregiver can manually straighten each toe, hold it in the extended position for 20 to 30 seconds, and repeat several times. Gentle stretching of the entire foot, including pulling the toes back toward the shin, helps address the calf and deep toe flexor muscles that contribute to curling.
Passive stretching (where someone else moves the toes for you) is a good starting point, but active exercises are more effective when you have even partial muscle control. Try placing a towel flat on the floor and scrunching it toward you with your toes, then deliberately spreading and extending them. Another exercise involves placing marbles on the floor and picking them up with your toes. These seem simple, but they force the brain to recruit the weakened extensor muscles, which is the core of neurological recovery.
Consistency matters more than intensity. Short sessions two or three times a day produce better results than one long session. The brain rewires through repetition, and each session reinforces the neural pathways you’re trying to rebuild.
Toe Separators and Splints
Toe separators are silicone or foam wedges placed between the toes to counteract the curling reflex. Research on stroke patients specifically has shown that separators can significantly reduce what’s called the tonic toe flexion reflex, the involuntary curling that happens when the foot bears weight. In studies of people with hemiparesis (one-sided weakness from stroke), using toe separators improved walking speed and cadence almost immediately.
In one trial, stroke survivors wore customized toe spreaders combined with sport sandals during all walking activities for six months. Compared to a control group receiving standard physiotherapy alone, the separator group showed improvements in gait, pain levels, and daily activity. A separate study of 25 chronic stroke patients found that toe separators improved overall foot pressure distribution during walking.
Silicone toe sleeves, which wrap around individual toes with a cushioned separator, serve double duty: they gently hold the toe straighter while also protecting the skin from friction and calluses. For nighttime use, padded toe splints or crest pads (small cushions that sit under the toe joints) can keep the toes in a more neutral position while you sleep.
Electrical Stimulation
Neuromuscular electrical stimulation (NMES) uses small electrical pulses delivered through pads on the skin to activate the muscles that straighten the toes and lift the foot. Electrodes are typically placed over the motor points of the muscles on the front of the lower leg that extend the toes and pull the ankle upward. In a controlled study of stroke patients, 30-minute sessions performed twice daily, five days per week for four weeks produced meaningful improvements in both spasticity reduction and the ability to actively move the ankle and toes.
The key detail is that the stimulation needs to be strong enough to produce a full movement, not just a tingling sensation. This “full-movement” approach forces the muscles through their complete range and sends strong sensory feedback to the brain, which helps with rewiring. NMES is typically administered by a physical therapist initially, but many patients transition to home units once they learn the correct electrode placement.
Botulinum Toxin Injections
When stretching and splinting aren’t enough to overcome strong spasticity, botulinum toxin (commonly known as Botox) injections can temporarily weaken the overactive flexor muscles. For claw toes, the injections target the deep muscles in the calf that control toe curling, primarily the flexor hallucis longus (which curls the big toe) and the flexor digitorum longus (which curls the smaller toes). In some cases, shorter muscles in the sole of the foot are also injected.
The toxin blocks the nerve signal that keeps these muscles in a constant state of contraction. Effects typically begin within a few days to two weeks and last three to four months, at which point the injections can be repeated. Research has found that the effectiveness varies depending on the type of stroke: patients whose stroke was caused by a blocked blood vessel (ischemic stroke) tended to respond better than those whose stroke involved bleeding in the brain (hemorrhagic stroke), even after accounting for differences in spasticity severity and dosage.
The real value of these injections is the window they create. While the spastic muscles are relaxed, stretching, splinting, and electrical stimulation become far more effective. This combined approach often produces longer-lasting improvements than any single treatment alone.
Surgical Options for Fixed Deformities
Surgery becomes relevant when the toes have been curled for so long that the tendons have permanently shortened and no amount of stretching, splinting, or injection can straighten them. The most common procedures involve releasing or lengthening the tight flexor tendons. In a study of 41 feet in adults with neurological impairment, surgeons routinely released the long toe flexor tendons in the midfoot as part of the correction. About 37% of those feet required a second procedure to release additional shorter tendons and intrinsic foot muscles that were still pulling the toes into a curl.
The results were encouraging: there were no surgical complications and no recurrences of the deformity at an average follow-up of two and a half years. Surgery is generally reserved for people who have exhausted conservative options and whose curled toes are causing pain, skin breakdown, or significant difficulty with footwear and walking.
Choosing the Right Footwear
Shoes can either help or worsen curled toes, and the wrong pair can cause skin breakdown surprisingly fast. The most important features are a deep, wide toe box that doesn’t press down on curled toes, and firm heel support to reduce the spasticity-driven tendency for the foot to roll inward. A slightly upturned toe (called a rocker sole) helps the foot move through the walking cycle more naturally and benefits people dealing with foot drop, which often accompanies toe curling after stroke.
Avoid shoes with rigid, unyielding uppers that press against the tops of bent toes. Some people find that very soft, flexible-soled shoes reduce foot spasms, while others need a firmer sole for stability during walking. Velcro closures are practical if hand function is also affected. You may need different shoes for different situations: a firmer shoe for walking and driving, a softer slipper for time at home.
Protecting the Skin on Curled Toes
Curled toes create pressure points where the tops of the toe joints rub against shoes and where the tips of the toes press into the sole. These friction zones develop corns and calluses quickly, and in people with reduced sensation (common after stroke), these can progress to open sores without being noticed. Check the toes daily for redness, blisters, or areas of thickened skin. A pumice stone can gently file down calluses before they become problematic.
Silicone toe sleeves and gel pads placed over the tops of bent joints act as a buffer between the toe and the shoe. Keeping toenails trimmed short prevents them from digging into adjacent toes or the sole of the foot. Moisturizing the feet daily helps prevent the dry, cracked skin that’s vulnerable to infection, but avoid putting lotion between the toes where trapped moisture can cause fungal growth.