Flexor Tendon Repair (Leg) Recovery
Repair, Flexor Tendon, Leg; Primary, Without Graft, Each Tendon
What the operation does
The flexor tendons run down the back of the lower leg, pass behind the inner ankle bone, and travel along the sole to the toes, curling them downward and helping push off. When one is cut or torn, the two ends are found and stitched together so the tendon can heal at the right length and glide freely again.
Why length and tension matter
A tendon repaired too loose leaves a toe that will not curl and a weak push-off. Repaired too tight, the toe sits clawed and presses into the shoe. The surgeon matches the tension against your other foot during the operation, and that judgement is a large part of what determines the result.
The real enemy here is sticking, not breaking
This is what makes tendon repairs in the foot and hand different from most operations. A healing tendon lays down scar that bonds it to everything around it, and a tendon glued to its sheath cannot glide however well it healed. That is why controlled movement is introduced early and deliberately rather than the leg simply being rested — the movement is what keeps the tendon free.
The tension in the early weeks
You are doing two contradictory things at once: protecting a repair that could pull apart, and moving it enough that it does not stick. That is why the early instructions are specific and sometimes fussy — a particular movement, a particular number of times, within a boot or splint that limits everything else. Following the detail matters more here than in most recoveries.
Weight and the boot
A splint or boot holding the foot in a protected position is usual for the first weeks, commonly with weight kept off or limited for around four to six weeks, then built up. The exact position and timings depend on which tendon was repaired and where. Your surgeon's instructions take priority over any general account.
How the injury usually happens
Most commonly a deep cut — glass, a blade, or a laceration across the ankle or sole. Occasionally a tendon ruptures from underlying degeneration without a wound. Where there was a cut, nerves and blood vessels run alongside the tendons and may have been repaired at the same time, which adds its own recovery.
If a nerve was repaired too
Nerves recover far more slowly than tendons — regrowth is measured in millimetres per day, so sensation returns over many months and sometimes incompletely. Numbness in part of the sole or toes may persist for a long time. Where sensation is reduced, checking the foot daily for sore spots becomes part of the routine, since the usual warning signals are missing.
Getting the toe to move again
Toe movement usually returns gradually rather than suddenly, and often lags behind the healing. Some permanent loss of curl in that toe is common and usually matters less than people expect. Where the tendon has stuck down despite everything, a later procedure to release the scar is occasionally considered.
Re-rupture
The repair is at its weakest somewhere around three to six weeks, which is precisely when the leg starts feeling normal and people relax. Most re-ruptures happen then, from an unguarded step or lifting the boot off too soon. Progressing on the schedule set rather than on how good it feels is what protects against it.
The wound
Where there was a laceration, the wound may have been contaminated and is watched more closely than a planned surgical incision. Keep it dry and covered as instructed. If it becomes red, starts discharging, or the pain increases rather than settling, contact your care team promptly rather than waiting.
Swelling
The foot and ankle swell and stay swollen for months — commonly four to eight, worse in the evening. Elevation in the early weeks helps considerably and is easy to do while you are off the leg anyway.
Driving
For a right foot, driving generally waits until you are out of the boot, walking comfortably, and could brake hard without hesitating — commonly around eight to ten weeks. A left foot in an automatic is much sooner.
Returning to work and sport
Desk-based work is often possible within one to two weeks with the foot elevated. Work on your feet generally waits until out of the boot and walking well, commonly two to three months. Running typically returns around four to five months and sport later, guided by push-off strength.
How the first months usually unfold
Two weeks dominated by the wound, elevation, and the protected position. Two to six weeks brings controlled movement within the splint while weight stays limited — the phase where the balance between protecting and moving matters most. Six to twelve weeks brings weight-bearing, normal shoes, and strengthening. Three to six months brings push-off strength and a return toward full activity.
Staying in touch with your care team
Which tendon was repaired, where, and whether nerves were involved changes this recovery substantially, and your surgeon knows what applied. If something about your recovery is worrying you or does not match what is described here, contact your care team — they would far rather hear from you.
Exercises for Flexor Tendon Repair (Leg)
An illustrated, phase-by-phase exercise program for this procedure. View the Flexor Tendon Repair (Leg) exercise program.
Recovery education · Condition guides · Exercise programs
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This guide is general education and doesn't replace evaluation by a licensed provider. Recovery and treatment vary by person — follow the guidance of your own surgeon or care team.