Diabetes mellitus is one of the most common causes of peripheral neuropathy globally, and diabetic peripheral neuropathy is one of the most common reasons an adult requires a walking cane -- often without recognising that the two are connected. The sensory loss that causes tingling and numbness in the feet also removes the proprioceptive feedback that regulates balance during walking. The result is a gait that is subtly less controlled, on surfaces that feel less predictable than they appear.
Diabetic Peripheral Neuropathy and Gait
Diabetic neuropathy follows a length-dependent pattern: the longest nerve fibres are affected first. This means the feet and lower legs show symptoms before the hands -- and the sensory loss progresses from the toes upward. The implications for gait:
- Reduced sensitivity to foot position during the stance phase of gait
- Impaired detection of surface irregularities (the foot does not register an uneven surface until a stumble has already begun)
- Reduced vibratory sense at the feet (normally contributes to balance during standing and walking)
- In later stages, motor neuropathy causes intrinsic foot muscle weakness, leading to hammer toe deformity and abnormal foot strike patterns
Studies of diabetic patients with peripheral neuropathy show gait speed reduction, step length reduction, and increased sway compared to age-matched controls -- all consistent with balance system impairment.
The Foot Ulcer Risk Dimension
Diabetic neuropathy removes protective sensation. A patient without protective sensation cannot feel a stone in the shoe, cannot feel shoe pressure on a bony prominence, and cannot feel the early pain of a forming ulcer. Foot ulcers in diabetic neuropathy are therefore typically painless until advanced -- and they are among the most serious complications of diabetes (the leading cause of non-traumatic lower limb amputation).
A walking cane reduces the load per step on the feet (approximately 15-20% of body weight), which reduces the plantar pressure peaks that contribute to ulcer formation at pressure points. This is a specific preventive function of the cane in diabetic neuropathy that goes beyond the general balance-support role.
HbA1c Control and Neuropathy Severity
| HbA1c Control | Neuropathy Progression | Balance Impact | Cane Priority |
|---|---|---|---|
| Well controlled (HbA1c under 53 mmol/mol / 7%) | Slowed or halted | Moderate | Assess by symptoms |
| Moderately controlled (53-75 mmol/mol) | Gradual progression | Progressive | Consider at confirmed neuropathy |
| Poorly controlled (over 75 mmol/mol) | More rapid progression | Significant | Recommended with confirmed neuropathy |
Cane as Proprioceptive Substitution
When sensory feedback from the feet is reduced, the cane shaft provides supplementary position information to the brain through the hand and arm. The nervous system integrates this information as part of the balance control process. A wider-contact tip (Steady Tip, 28mm) provides a more stable ground contact signal through the shaft than a small ferrule, giving the nervous system better quality supplementary information.
Footwear and Cane Selection for Diabetic Neuropathy
Diabetic footwear (custom-moulded insoles, extra-depth shoes) is part of the standard management of diabetic foot. These shoes may be thicker-soled than standard footwear, which can affect the effective cane height slightly. If custom diabetic footwear is worn, the cane height should be set while wearing these shoes (not while barefoot or in standard footwear).
View the DaiWalk cane range and use the cane length calculator -- complete the calculation while wearing your normal footwear.
Related reading: Walking Cane for Peripheral Neuropathy | Walking Cane for Chronic Kidney Disease
