Post-Stroke AFO: Tone, Contracture, and a Tight Timeline
A 58-year-old woman is 10 weeks post left middle cerebral artery stroke. She has left hemiparesis with 2/5 ankle dorsiflexion, marked plantarflexor spasticity (modified Ashworth 3), and a 10-degree plantarflexion contracture. She ambulates with a hemi-walker and one assist, with circumduction and toe drag. She has mild neglect of the left side and reports she 'forgets' the affected leg. Her goal is to walk into her daughter's wedding in eight weeks. She has Medicare and limited transport; the clinic is 90 minutes away.
1. What does the spasticity and contracture mean for device selection and casting?
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High plantarflexor tone (Ashworth 3) plus a fixed 10-degree contracture means the ankle cannot be positioned at neutral without risk of pain, skin breakdown, or triggering a stronger stretch reflex. The device should be cast in a position she can tolerate, often with a tone-inhibiting design (e.g., a solid or hinged AFO with a plantarflexion stop) rather than a flexible leaf-spring that the spasticity will overpower.
A hinged AFO with an adjustable stop may better manage tone while allowing some controlled motion; a solid AFO gives more stability and tone control but limits motion. The choice should be tied to her gait goals and tolerance.
Because tone is dynamic, the plan must include reassessment after delivery; the device may need adjustment as tone changes with therapy and time.
2. How do the neglect, the transport barrier, and the wedding deadline shape the plan?
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Neglect means she may not report or notice skin problems or discomfort on the left, so caregiver education and scheduled skin checks are essential; the daughter or a caregiver should be taught to inspect the foot and leg.
The 90-minute transport and limited visits argue for consolidating appointments, using telehealth or local therapy contacts for interim checks where possible, and ensuring the device is right the first time. Build in a planned follow-up soon after delivery rather than relying on her to return if problems arise.
Eight weeks is achievable for fabrication but tight for break-in and gait training. Sequence: cast/scan promptly, deliver with enough lead time for therapy, and set a realistic interim milestone. Do not promise the wedding outcome; promise a plan aimed at it.
3. At the first follow-up she has a red mark over the lateral malleolus and increased tone. What do you do?
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Treat the red mark as a pressure issue and the increased tone as a fit/positioning issue; they may be linked. Inspect the device for focal pressure at the lateral malleolus, relieve it (flare, pad, or reshape), and re-check with a limited wear trial and skin inspection.
Increased tone can push the limb into the shell and create new pressure points, so reassess the ankle position and the stop setting, and coordinate with her therapy team on tone management. Document the finding and the modification.
Given neglect, confirm the caregiver knows to check the area daily and to report changes. Schedule a re-check rather than waiting for the next routine visit.