Presentation on theme: "Dr Isstelle Joubert May 2011. Presenting History: Mr A, 39yo man bilateral painful feet one year history gradual onset no history of trauma or recent."— Presentation transcript:
Presenting History: Mr A, 39yo man bilateral painful feet one year history gradual onset no history of trauma or recent surgery lower limbs job: salesman Previous history: Surgical: both ankles, knee and right arm fracture Medical: gout, chronic sinusitis Social: OH stop July 2010, non-smoker, 4L coke DAILY! Family history: dad died age 48 - myocardial infarction
Clinical examination: BP - 130/90 BMI - 39.8 (W=138kg, H=184cm) Examination of feet: localized tenderness plantar aspects, especially medial calcaneal tuberosities Current chronic medication: Puricos 300 i od (raised u/a) Glucophage 500mg i od (raised insulin) Lorien 20mg i od (depressive mood)
Special investigations: X-ray of both feet - “heel spurs” seen on X-ray Heel spur
Management: Local infiltration of steroid (both heels) Insoles in shoes Weight loss advised Follow-up: one foot - totally pain free other one - some discomfort
Three stage assessment: Biological change his current health status drastically - diet, weight, level of exercise Personal/Psychological impact fear of loss of income if pain persists stays at home when pain is unbearable gets frustrated - conflict with clients Social/contextual impact expectations colleagues (not staying at home), family (activity, diet - better quality of life)
Problem list: Active - bilateral painful feet Passive obesity hyperinsulinaemia family history - MI increased blood levels of uric acid unhealthy diet no exercise
Differential diagnosis : Plantar fasciitis Tibialis posterior syndrome Referred pain as a result of a S1-radiculopathy Stress fracture - calcaneal or navicular Fat pad injury Peripheral neurogenic pain: tibial nerve related Trigger point pain
Synonyms: painful heel syndrome heel spur syndrome runner’s heel subcalcaneal bursitis periostitis policeman’s heel (most of day-time on their feet) 1
Definition : musculoskeletal disorder affecting the plantar aponeurosis or fascia (inflammation) mostly infero-medial aspect
Prevalence: young and old athletes and non-athletes not gender specific 2 United States 3,4 600 000 outpatient visits annually athletes, 5 - 14% 5 of running injuries
Anatomy of the foot and plantar fascia: arises: medial process of calcaneal tuberosity attachment: distally to plantar aspect of the forefoot, medial and lateral intermuscular septa mechanoreceptors respond to mechanical loading noci-ceptors transmit info on pain and inflammation 6
Pathophysiology : not well understood mechanical overload and excessive strain microscopic tears in the fascia triggering the inflammatory repair processes entesal fibrocartilage - prone to degenerative change increase cartilage cell clustering formation of fissures within the fibrocartilage ossification = spurs
Symptoms and signs : pain inferior on heel worse on weight bearing worse: first few steps in the morning persisting from months to years character: throbbing or piercing improves after resting - worsens again with continued activity throughout the day limiting daily activities - walking barefoot, on toes or climbing stairs
tenderness localised to medial aspect of the calcaneal tuberosity
assessing gait: excessive supination or pronation
plantar fascia tight - stretching reproduce pain
Anatomical Pes planus (flat feet): strain - fascia try maintain stable arch during the propulsive phase of gait Pes cavus (high arch): strain - decreased eversion - absorb shock Activities running / dancing: max plantarflexion ankle + dorsiflexion MTP joints Elderly persons - non-supportive / inappropriate footwear 10 Obesity / increased work-related weight bearing study found NO association for BMI 11 Possible causes 7...
Special investigations: aim confirm the diagnosis modalities available ultrasound plain x-rays of feet bone-scan MRI nerve conduction studies blood tests
Ultrasound useful non-invasive technique increased thickness + hypo-echoic fascia Special investigations:
Plain x-rays of feet generally unhelpful rule out stress fractures of calcaneus calcifications noticed + osteophytes (heel spurs) study: osteophytes visible 50% with plantar fasciitis, 19% without plantar fasciitis 12 Special investigations:
Bone-scan increased uptake at the calcaneus not very specific technique very sensitive potential malignant bony lesions Special investigations:
Magnetic Resonance Imaging (MRI) thickening of the plantar fascia detecting tears or rupture of the fascia Special investigations:
Nerve conducting studies no improvement in three months’ of conservative Rx ? other causes: nerve entrapment / tarsal tunnel syndrome Special investigations:
Blood tests CRP - ? infection HLA B27-genes - ? HLA-B27-spondyloarthropaties (psoriatic arthritis or ankylosing spondylitis) uric acid - gout raised ALP, normal PO 4 + Ca 2+ - ? Paget’s disease Special investigations:
Management: Avoidance of aggravating activities Cryotherapy NSAID Stretching Taping Foot orthoses Night splinting Soft tissue therapy Corticosteroid injection Iontophoresis 16 Extracorporeal shock wave therapy 17,18 Surgery
Management: Avoidance of aggravating activities Cryotherapy 8 ↓ pain by ↓ motor, sensory nerve conduction velocity ↓ swelling, cellular metabolism methods reusable cold packs / crushed ice bags ice massage / endothermal cold packs (towel between bag and skin - avoid nerve damage/ frostbite) on area of pain - 5 - 30 minutes NSAID: orally / topically / injection (1 st month of Rx) ↓ local inflammation
Management: Stretching 7 : Focus on calf and Achilles tendon or plantar fascia itself Key-component in Rx Short term benefits pain relief increased calf flexibility Long-term benefits decrease in pain and functional limitations high rate of satisfaction effective inexpensive easy to implement-tool
Management: Taping: designed to provide inversion of the calcaneus improving the biomechanical position and stability limits the range of motion increase proprioception increase reduction of intensity of pain Biomechanical correction with foot orthoses: ↓ pain associated with plantar fasciitis 14 prefabricated foot orthoses + stretching = ↓ pain silicone heel pads / well supported arches and midsoles
Management: Night splints or Strasbourg sock: maintains ankle dorsiflexion and toe extension constant mild stretch of fascia allows heal at a functional length indicated – no improvement after 6 months wearing - 3 months
Soft tissue therapy: manual therapeutic techniques aim - restore normal muscle length + joints movement Management: Corticosteroid injection 15 advantages↓ inflammatory process outpatient basis fast recovery pain ↓ risk of rupture of the plantar mixture: 4ml of local anaesthetic 1ml of corticosteroid
Management: Iontophoresis 16 topically applied steroid Dexamethasone 0.4% or acetic acid 5% delivered topically propelled into the injured tissue with a small electric charge short term pain relief (2 - 4 weeks)
Management: Extracorporeal shock wave therapy 17,18 what: stimulation healing of the soft tissue reduction of calcification inhibition of pain receptors or denervation to achieve pain relief proposed responses due to release of enzymes hyperstimulation of axons release of nitrous oxide and growth factors Three devices OssaTron Epos Ultra Sonorex
How? conversion of electrical energy to mechanical energy... Extracorporeal shock wave therapy 17,18
Management:... Extracorporeal shock wave therapy 17,18 four main goals 50% improvement in pain from baseline ↓ pain on rising, walking in morning of at least 50% ↑ activity level + self-assessed ability to move pain free for time + distance discontinuation of pain meds Successful when: all criteria are met in 3 - 12 months after treatment
Management: Surgery: Optionsisolated, partial or complete release with or without the resection of the calcaneal spur excision of abnormal tissue or nerve decompression Open or via endoscopic approach Who?moderate to severe symptoms persistent resistant in spite of conservative management at least six months Endoscopic procedures more rapid recovery return to pre-surgery activities
What is new / controversial in plantar fasciitis? Shock waves Elastography 20 Botulinum toxin A 21 Bipolar radiofrequency 22 Acupunture 23 Platelet rich plasma therapy 24,25
Shock waves: sound waves create vibrations cause controlled injury to tissue ↑ healing ability ↑ repair process Intracorporeal pneumatic shock 19 therapy vs extracorporeal shock wave therapy energy generated inside / outside the body when extracorporeal shock devices are not available cheap, readily available, effective, safe What is new / controversial in plantar fasciitis?
Elastography 20 new modality measures tissue elasticity of plantar fascia detect early stages of plantar fasciitis ultrasonography (U/S): U/S: 65.8% sensitivity, 75% specificity elastography: 95% sensitivity, 100% specificity sono-elastography ↑ accuracy of dx from 68% to 96% staging of disease What is new / controversial in plantar fasciitis?
Botulinum toxin A 21 : improve pain relief and overall foot function ease severe muscle contractions decrease inflammatory reactions diminish wrinkles + tension headaches Dr Brodsky, president of American Orthopaedic Foot and Ankle Society pain relief lasted at least one year larger study under way cost-effectiveness - $$ refractory patients What is new / controversial in plantar fasciitis?
Bipolar radiofrequency 22 : minimally invasive technique viable surgical treatment option not improve on conservative measures Acupunture 23 : enhances inhibitory processes by stimulation of trigger points muscles and peripheral nerves increase the concentration of endorphins in the CNS decreasing local inflammation What is new / controversial in plantar fasciitis?
Platelet rich plasma therapy 24,25 (autologous growth factors) new therapy mid 1990’s for the discipline of maxillofacial surgery pain relief long lasting healing of musculoskeletal conditions sample of patient’s blood - centrifuge separates platelets from other components concentrated platelet rich plasma injected into site of injury initiates an increased healing response lasting results What is new / controversial in plantar fasciitis?
In conclusion... think on your feet... Be aware of many reasons for painful feet Be aware of many management options Plantar Fasciitis
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