A Study to Compare 3- and 4-Part Proximal Humerus Fractures Undergoing Elected Nonoperative vs. Operative Management


About this study

The purpose of this study is to compare validated clinical and functional outcomes between patients who acutely present with 3- and 4-part Proximal Humerus Fractures (PHFs) treated nonoperatively or with rTSA. We hypothesize that in displaced 3- and 4-part proximal humerus fractures, rTSA will have better pain relief and functional outcomes than nonoperative treatment.


Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. There is no guarantee that every individual who qualifies and wants to participate in a trial will be enrolled. Contact the study team to discuss study eligibility and potential participation.

Inclusion Criteria:

  • Displaced 3- and 4-part proximal humerus fractures.
  • Age ≥ 65 years old and < 90 years old.

Exclusion Criteria:

  • < 65 years old or ≥ 90 years old.
  • Medical comorbidities precluding surgical treatment or anesthesia.
  • Dementia or inability to provide adequate follow up.
  • Pathologic fractures.
  • Open fractures.
  • Associated injuries: fracture dislocations, multiple or complex injuries of the ipsilateral limb, complete brachial plexopathy, vascular injury and polytrauma.


Participating Mayo Clinic locations

Study statuses change often. Please contact the study team for the most up-to-date information regarding possible participation.

Mayo Clinic Location Status Contact

Rochester, Minn.

Mayo Clinic principal investigator

Jonathan Barlow, M.D.

Open for enrollment

Contact information:

Jonathan Barlow M.D.



More information


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