A 20 year old man with left wrist pain after a fall on his hand

 

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Doctor's Information

Name : Maryam
Family :Noori
Email : This email address is being protected from spambots. You need JavaScript enabled to view it.
Resident : ----------------

 

Patient's Information

Gender : Male
Age : 20

 

Case Section

Muskuloskeletal System

 

Clinical Summary

A 20-year-old man with left wrist pain after a fall on his hand.

 

 

Imaging Procedures and Findings

A 20-year-old man after a fall on his hand underwent MRI, showed hypointense fracture line especially on axial T1w images also bone marrow edema of hook & body of hamate (hypointense on T1w & hyperintense on fat suppressed PD sequences). No significant displacement is noted. Lucent fracture line with no significant displacement is also depicted by CT scan.

 

Discussion

1.5% of carpal fractures is related to hamate bone (hook, distal part, proximal pole & osteochondralfractures of triquetral articular surface). Hook fracture may be related to fall on outstretched wrist (dorsiflexion), tension or direct trauma. In playing sport patients, dominant hand & nondominant hand in other causes. The best diagnostic tools are MR & CT. The best diagnostic clue is Fracture line in hamate on direct axial images.

 

Final Diagnosis

Hamulus (hook of hamate) fracture

 

References

Diagnostic Imaging Orthopedics, David W. Stoller. MD. FACR, Phillip F.J. Tirman. MD, Miriam A. Bredella. MD, et al.

 

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