Which clinician is responsible for managing a fracture of the proximal humerus at the surgical neck?

Management of Proximal Humerus Surgical Neck Fractures

An orthopedic surgeon should manage proximal humerus surgical neck fractures, with the specific subspecialty (shoulder surgeon vs. trauma surgeon) depending on fracture complexity, patient age, and institutional resources.

Primary Care Responsibility

The evidence clearly indicates that orthopedic surgeons are the primary clinicians responsible for managing these fractures 1. The EULAR/EFORT guidelines specifically outline that fracture care coordination involves "supervision of an orthopaedic surgeon, an endocrinologist or a rheumatologist," with the orthopedic surgeon being the primary surgical decision-maker 1.

Subspecialty Considerations

When Shoulder Surgeons Should Lead:

• Complex 3-part and 4-part displaced fractures requiring potential arthroplasty 1
• Elderly patients (>65 years) with pre-existing rotator cuff dysfunction where reverse shoulder arthroplasty may be needed 1
• Head-split fractures in older patients (>50 years), where 90% of surgeons prefer arthroplasty 2
• Fractures with glenohumeral arthritis or significant rotator cuff pathology 2

When Trauma Surgeons Can Lead:

• Simple 2-part fractures in younger patients with good bone quality 2
• Fracture-dislocations requiring urgent reduction and fixation 2
• Non-displaced or minimally displaced fractures amenable to conservative management 3, 4

Key Decision Points

Most proximal humeral fractures (approximately 80%) can be treated non-operatively with good functional outcomes 1. This is critical because it means the managing surgeon must have expertise in determining which fractures truly require surgery versus conservative management.

Surgical Indications Requiring Specialist Input:

• Displaced 3-part and 4-part fractures - controversial and require experienced judgment 1
• Head-split fractures - 82% of surgeons cite this as an arthroplasty indication 2
• Poor bone quality - 76% cite this as requiring arthroplasty consideration 2
• Age >70 years with displacement - may benefit from reverse shoulder arthroplasty 2

Divergence in Practice Patterns

Research reveals significant differences between shoulder and trauma surgeons in managing identical fracture patterns 2:

• For low-functioning patients with significantly displaced fractures: trauma surgeons prefer non-operative management (84%), while shoulder surgeons split between RSA (44%) and non-operative (54%) 2
• For young patients with head-split fractures: trauma surgeons overwhelmingly choose ORIF (98%), while shoulder surgeons split between ORIF (54%) and hemiarthroplasty (43%) 2

This divergence highlights that the surgeon's subspecialty training significantly influences treatment decisions, making appropriate referral patterns crucial.

Coordinated Care Model

The optimal approach involves a Fracture Liaison Service (FLS) with a dedicated coordinator working under orthopedic supervision 1. This coordinator:

• Identifies all elderly patients with recent fractures
• Organizes diagnostic investigations
• Initiates appropriate referrals to shoulder or trauma specialists
• Ensures osteoporosis evaluation and secondary prevention 1

Common Pitfalls to Avoid

1. Assuming all displaced fractures need surgery - Most can be managed conservatively with acceptable functional outcomes 1, 3
2. Delaying subspecialty consultation - Complex fractures benefit from early shoulder surgeon involvement for surgical planning 4
3. Ignoring bone quality assessment - This is the second most important factor (76%) influencing surgical approach after fracture pattern 2
4. Failing to assess rotator cuff status - Pre-existing dysfunction (70% cite this) dramatically changes surgical options toward reverse arthroplasty 2

Practical Algorithm

For patients >50 years with proximal humerus surgical neck fractures:

1. Initial evaluation by orthopedic trauma or emergency orthopedics
2. If non-displaced or minimally displaced → trauma surgeon manages conservatively
3. If displaced 2-part → trauma surgeon can manage (ORIF if needed)
4. If displaced 3-part/4-part, head-split, or poor bone quality → refer to shoulder surgeon
5. If age >70 with displacement and rotator cuff concerns → refer to shoulder surgeon for arthroplasty consideration

For patients <50 years:

• Trauma surgeons can manage most fractures with ORIF
• Refer to shoulder surgeon if intra-articular involvement or complex reconstruction needed