This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Orthopaedics
Osteoarthritis is associated with all of the following except - 
Select and explain. 
A. Decreased joint space, B. Subchondral sclerosis, C. Osteophyte formation, D. Ca++deposition in joint space
D: Ca++deposition in joint space
Answer: D: Ca++deposition in joint space 
Explanation: Radiological features of osteoarthritis 

The diagnosis of OA can be made on x-ray which shows:-

i) Narrowing of joint space → Earliest manifestation                                    
ii) Spurring' or 'lipping' of the joint from the formation of osteophytes  
iii) Loose bodies
iv) Subchondral sclerosis
v) Subchondral cyst
vi) Deformity of the joint