plantar fasciitis, pes planus,Hallux valgus, Lower limb lymphadenopathy, posterior tibial pulse and dorsalis pedis pulse Flashcards
What is plantar fasciitis?
Plantar fasciitis describes inflammation of the deep plantar fascia, also called the plantar aponeurosis.
- What causes plantar fasciitis?
Excessive training, particularly running, jogging, walking, jumping in volleyball, or training in bare feet, causes repetitive microtrauma, leading to inflammation, primarily at the attachment point of the plantar fascia to the calcaneus.
- What are the risk factors for plantar fasciitis?
Risk factors include obesity, prolonged standing, working on hard surfaces, and pes planus (flat feet).
- What is the clinical presentation of plantar fasciitis?
Patients typically present with unilateral or bilateral heel pain that worsens in the morning and after prolonged rest, and gradually lessens with activity. They might experience pain over the medial process of the calcaneal tuberosity, along the length of the sole of the foot, and on passive dorsiflexion of the toes.
- What are heel spurs, and how are they related to plantar fasciitis?
Heel spurs often coexist with plantar fasciitis, but it’s uncertain whether they cause or represent a secondary response to an inflammatory reaction.
- What is pes planus, and what causes it?
Pes planus, or flat feet, is the loss of the foot’s medial longitudinal arch. Flat feet can be classified as flexible or rigid, and they might be due to congenital ligament laxity, ligament breakdown, or denervation.
- How does flexible pes planus change over time in children?
In children, flexible pes planus typically resolves as they age when the fat pad is lost, ligaments grow and mature, and the normal arch develops.
- What is acquired pes planus, and what causes it?
Acquired pes planus is the persistence or development of flat feet in adulthood due to breakdown of foot supporting structures from conditions like obesity, trauma, arthropathies, or denervation.
- What symptoms are associated with pes planus, especially when problematic?
Pes planus is mostly asymptomatic but can lead to arch pain and later alter the biomechanics of the lower limbs, causing discomfort in various areas such as the midfoot, heel, lower leg, knee, hip, and back.
- How is pes planus diagnosed?
On examination, one can observe evidence of flat feet or excessive pronation, and the “too many toes” sign might be noticed when viewing the individual from the back.
What is Hallux Valgus?
- Hallux Valgus refers to a deformity where the proximal phalanx of the big toe deviates laterally on the first metatarsal.
- What are the primary characteristics of Hallux Valgus?
- Key characteristics include lateral deviation of the big toe, internal rotation causing the toenail to face medially, bunion formation, and lateral shifting of the sesamoid bones.
- Enumerate the risk factors associated with the development of Hallux Valgus.
- Risk factors include genetic predisposition, ligamentous laxity, inflammatory joint disease, pes planus, abnormal gait, and wearing poor footwear.
- How does Hallux Valgus typically manifest in individuals?
- Manifestation includes pronounced medial protrusion of the toe causing difficulty in wearing shoes, chronic and sharp pain exacerbated by walking.
- What complications may arise due to the progression of Hallux Valgus?
- Complications include blisters, ulcerations, irritated skin, limited toe mobility, and corns over other toes due to altered foot mechanics.
- Describe the association between inflammation and the bunion in Hallux Valgus.
- The bunion is the inflamed and painful area overlying the medial metatarsophalangeal joint.
- What specific pain-related symptoms are commonly reported by individuals with Hallux Valgus?
- Pain symptoms are chronic, sharp, worsened by walking, and accompanied by a burning sensation on the dorsal side of the deformity.
- What are corns and how are they related to Hallux Valgus?
- Corns are thickened skin over the proximal interphalangeal joints of other toes due to altered foot mechanics.
- Why is Hallux Valgus more common in biological females?
- Its prevalence increases with age, and females experience a higher frequency of the risk factors.
- How might the progression of Hallux Valgus lead to foot mobility issues?
- Progression results in pain, skin complications, and limited mobility due to toe misalignment.
What is lymphadenopathy and its association with the lower limb?
- Lymphadenopathy refers to an abnormality in the size, number, or consistency of lymph nodes due to various conditions like infection or malignancy. In the lower limb, medial foot infections primarily cause inguinal lymphadenopathy, while lateral foot infections lead to popliteal lymphadenopathy followed by inguinal lymphadenopathy.
- Describe the lymphatic drainage of the lower limb.
- Lower limb drainage consists of superficial and deep lymphatic vessels. The superficial system, divided into medial and lateral tracts, drains the skin and subcutaneous tissue. The medial track follows the great saphenous vein to the superficial inguinal lymph nodes, bypassing the popliteal nodes. The lateral tract drains the lateral leg and foot, draining into both popliteal and inguinal nodes. The deep system follows arteries and receives lymph from lower limb muscles and deep vessels, entering the popliteal lymph nodes.
- Explain how to palpate the posterior tibial pulse.
- The posterior tibial pulse can be palpated by pressing the fingers behind the medial malleolus, in the space between the malleolus and Achilles tendon, just above the calcaneus. Passive inversion of the foot helps relax the flexor retinaculum for better palpation.
- Detail the process of locating the dorsalis pedis pulse.
- The dorsalis pedis artery continues from the anterior tibial artery, passing anterior to the ankle joint between the malleoli, underneath the inferior extensor retinaculum, and to the first interosseous space. It can be felt by starting between the malleoli and moving fingertips roughly a third to halfway toward the web space between the first and second toes, slightly lateral to the extensor hallucis longus tendon.