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Plantar fascia is an overuse-related irritation and micro-tearing of the thick fibrous band connecting the heel bone (calcaneus) to the toes. It is often degenerative (plantar fasciopathy) rather than purely inflammatory. - It’s the most common cause of heel pain in adults. - Prevalence: ~10% of people at some point; higher in runners, standing workers, and those with reduced ankle mobility. Contributing factors: A) Overload: Having an accumulation or sudden increase in physical activities/high-impact activities such as running on hard surfaces or standing for long periods of time for work can place an incredible amount of increased stress through the foot, the plantar fascia. This can irritate the structure and cause inflammation and pain, as well as create microtraumas to the tissue. B) Poor footwear/ mechanics: a. Overpronation (flat feet) b. Reduced Ankle Dorsiflexion (tight/reduced strength of calf muscles) c. Rigid High Arches (poor shock absorption and increased fascia tension)
All of these can contribute to the development of plantar fasciitis due to the increase in stress and damage accumulation potential of this structure. Therefore, footwear that does not support the foot appropriately to counter these biomechanical deficits will contribute negatively.
C) Weigt and age: This condition has been illustrated to be correlated with individuals with higher BMI, often over the age of 40. The higher the BMI the more force and pressure will be placed through this tissue. D) Muscle imbalances: Reduced strength in muscles such as the intrinsic foot muscles, toe flexors, calf, and knee/hip muscles may contribute as they each alter a person’s biomechanics. They also reduce the foot's ability to absorb impact and distribute forces optimally. Treatment/Management: 1) Load management: : Initially minimising/removing aggravating factors and activities. These factors can include minimising running, standing for long periods, hopping and jumping. Loa management is crucial, therefore laying out your current exercise/sports schedule and modifying things such as frequency, duration and intensity will aid this. This will enable the healing process. 2) Ice/medication: : Ice as well as using forms of pain killers/Anti-inflammatories (as directed by your medical professionals) can help manage acute bouts of pain. 3) Orthotics/footwear: Appropriate footwear or orthotics may help with not only supporting your arch and foot mechanics to help the legs overall biomechanics, but it may also help soften the forces through the plantar fascia region by absorbing force more evenly. 4) Taping/other modalities: Special taping technique may be implemented by your physiotherapy to help load and encourage optimal foot mechanics. Other modalities such as massage, mobilisation of the ankle joint, other manual therapy utilities, and shockwave therapy can be integrated. 5) Exercise-rehab: Exercises targeting the muscle imbalances and poor biomechanical patterns, as described above, will aid in more optimal movements and loading of this structure.
6) Medical intervention/referral: In some presentations if conservative management is not responding as expected or the presentation is severe, this may warrant potential imaging such as an ultrasound. There may also be considerations to refer to a specialist for a steroid injection to reduce the large inflammatory components of the dysfunction and help promote healing.