3. LOWER LIMB PATHOLOGY
1. CHONDROMALACIA PATELLAE
• Runner’s knee
• Softening of the cartilage under the
patella
• RA: possible misalignment of patella
4. LOWER LIMB PATHOLOGY
2. GOUT
• Form of arthritis that may be hereditary in w/c
uric acid appears in excessive quantities in the
blood
• 1st MTP joint of the foot
• Latin: “gutta” - drop
• “The disease of kings" or “Rich man's disease.“
• Podagra Disease (moth)
• RA: uric acid deposits in joint space
5. LOWER LIMB PATHOLOGY
3. LISFRANC JOINT INJURY
• Range from sprains to fx-dislocations
of the base of the 1st and 2nd
metatarsals
• Jacques Lisfranc de St. Martin
• RA: Abnormal separation or avulsion
fracture between base of first and
second metatarsals and cuneiforms
6. LOWER LIMB PATHOLOGY
4. OSGOOD-SCHLATTER DISEASE
• Common in boys, 10-15 years old.
• Apophysitis of the tibial tubercle
• Knobby knees
• Robert Bayley Osgood
• Carl Schlatter
• RA: Fragmentation or detachment of
tibial tuberosity by patellar tendon
7. LOWER LIMB PATHOLOGY
5. OSTEOCLASTOMA
• Giant cell tumors
• Benign lesions that typically occurs in
the long bones of the young adults
• Proximal tibia or distal femur
• R.A: large “bubbles” separated by
thin strips of bone
8. LOWER LIMB PATHOLOGY
6. OSTEOMALACIA
• Rickets (children)
• Bone softening
• Malacosteon (o.t)
• Latin-derived equivalent, mollities ossium.
• Lack of bone mineralization secondary to a
deficiency of calcium, phosphorus, Vit. D.
• RA: decreased bone density, bowing deformity
in weight bearing limbs
9. LOWER LIMB PATHOLOGY
7. REITER’S SYNDROME
• Sacroiliac joint and lower limbs of the young men
• Reactive arthritis
• Hans Conrad Reiter
• Bony erosion at the Achilles tendon – on the
posterosuperior margin of the calcaneus.
• Caused by previous infection of the GI tract such
as salmonella or STD
• RA: asymmetric erosion of joint spaces;
calcaneus erosion
