This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ohopaedics Q Bank, Subject name: Orthopaedics
Not true about stress fracture is? 
Select and explain. 
A. 2nd metatarsal neck is involved in march fracture, B. Olecranon is the most common site of upper limb stress fracture, C. Pars interaicularis of L4 is common site in spine, D. MRI is the IOC
C: Pars interaicularis of L4 is common site in spine
Answer: C: Pars interaicularis of L4 is common site in spine 
Explanation: Pars interaicularis of 5th lumbar veebrae causing spondylolysis is commonest site in spine. Stress fracture Population at risk: Military recruits , professional dancers and athletes Patient typically complaints of point tenderness M/C in lower limb- 2nd> 3rd metatarsal (march fracture) M/C in upper limb- oleceron process M/C in spine -Pars interaicularis of 5th cervical veebra IOC-MRI Spondylolysis: