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Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.

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AO classification of proximal humerus fracture

Introduction

Proximal humerus fracture
Overview[1][2]

Overview[1][2]

The injuries of the ball-and-socket shoulder joint considered as the Proximal humerus fracture. It is more common among the elderly population following a low energy trauma such as falling. Meanwhile, A few people experience the axillary nerve damage such as reduced sensation around the middle deltoid and/or axillary artery involvement.

AO classification of proximal humerus fracture

AO classification of proximal humerus fracture

AO classification of proximal humerus fractures:
type A: extra-articular unifocal (either tuberosity +/- surgical neck of the humerus)
  • A1: extra-articular unifocal fracture
  • A2: extra-articular unifocal fracture with impacted metaphyseal fracture
  • A3: extra-articular unifocal fracture with non-impacted metaphyseal fracture
type B: extra-articular bifocal (both tuberosities +/- surgical neck of the humerus or glenohumerus dislocation)  
  • B1: extra-articular bifocal fractures with impacted metaphyseal fracture
  • B2: extra-articular bifocal fractures with non-impacted metaphyseal fracture
  • B3: extra-articular bifocal fractures with glenohumerus joint dislocation
type C: extra-articular (anatomical neck) but compromise the vascular supply of the articular segment
  • C1: anatomical neck fracture, minimally displaced
  • C2: anatomical neck fracture, displaced and impacted
  • C3: anatomical neck fracture with glenohumerus joint dislocation
Related Chapters

Template:Fractures

Template:WikiDoc Sources

See also

See also

References

References

  1. ↑ Stone MA, Namdari S (April 2019). “Surgical Considerations in the Treatment of Osteoporotic Proximal Humerus Fractures”. Orthop. Clin. North Am. 50 (2): 223–231. doi:10.1016/j.ocl.2018.10.005. PMID 30850080.
  2. ↑ Lin KM, James EW, Spitzer E, Fabricant PD (February 2018). “Pediatric and adolescent anterior shoulder instability: clinical management of first-time dislocators”. Curr. Opin. Pediatr. 30 (1): 49–56. doi:10.1097/MOP.0000000000000566. PMID 29135565.

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Mohammadmain Rezazadehsaatlou[2].