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Sports M edicine Clinic. Presentation. 10 year old lacrosse player Presented at clinic with right hind foot pain Begin abruptly after lacrosse practice 3 weeks ago. Pain was diffuse around the heel and present in the region of the right ankle
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Presentation • 10 year old lacrosse player • Presented at clinic with right hind foot pain • Begin abruptly after lacrosse practice 3 weeks ago
Pain was diffuse around the heel and present in the region of the right ankle • Symptoms have increased over the last three weeks • Worse with weight bearing
No relief Ice Motrin Gel heel cups crutches
DDX of aldoscence heel pain • Calcaneal apophysitis (severs disease) • Calcaneal stress reaction or stress fx • Retro-calcaneus bursitis • Achilles tendinopathy • Reactive arthritis (Reiter syndrome) • Bone tumor • osteomyeltis
Exam • NAD • Mild swelling • Moderate tenderness at the lateral ankle • Pain on squeezing the calcaneal • No rubor or calor in the foot or ankle • Capillary refill was normal • No strength or sensory deficits
Tests • Full rom • No instability with anterior drawer or talar tilt test • Antalgic on right
Medical history • Soft tissue infection right forefoot after a cut on the chain link fence approximately 2 months before the heel pain • Rx with oral cephalexin 1 g x 10 days • Complete resolution of activities and was able to return to full activities within one week of infection • No chills, fever, or other systemic symptoms
lab • CBC • Sedrate • C-reactive protein
X-rays • Foot and ankle – mild swelling over the lateral malleolus otherwise normal for her age • MRI – patchy increase t2 and decrease t1 within the calcaneus • CT - lytic lesion surrounded by sclerosis in the posterior aspect of the calcaneus
Osteoid or osteomyelitis • No linear component to suggest stress response or fracture
Consultations • Foot and ankle specialist • Ortho oncologist
5 weeks after symptoms started • Low-grade temp and chills • Clinical exam unchanged • Higher suspicion of osteomyelitis
Open biopsy with frozen sections • Excision of the lesion
Dx Osteomyelitis
pathology • Clindamycin 3 weeks of IV followed by 3 weeks of oral • 7 weeks back to normal
osteomyelits • Pseudomonas aeruginous is the most common in puncture related cases
Local • Hematogenousspread • Common in newborns heel prick for blood
Early dx • Isolation of the microorganism
Summary • Non musculoskeletal dx • Atraumaticmusculoskeletal symptoms • Osteo can be present without fever or chills • Imaging studies may be misleading • Early dx and tx are keys to successful outcomes
What is the most important lesson to learn from this presentation?