S42.122 Displaced fracture of acromial process, left shoulder

Name of the Condition

• Displaced fracture of acromial process, left shoulder

Summary

A displaced fracture of the acromial process of the left shoulder involves a break in the bony projection (acromion) of the scapula, where the bone fragments are not aligned. The acromial process forms part of the shoulder's roof and connects to the clavicle, contributing to joint stability. This injury typically results from trauma and may affect shoulder function due to misalignment or associated soft tissue damage.

Causes

Traumatic injury is the primary cause, often from a direct blow to the shoulder, a fall onto the shoulder, or a forceful impact during activities like sports or accidents. High-energy events, such as motor vehicle collisions, can also lead to this type of fracture.

Risk Factors

• Participation in contact sports or activities with a risk of shoulder impact.
• Osteoporosis or conditions that weaken bone density.
• Advanced age, which may increase susceptibility to fractures from minor trauma.
• Previous shoulder injuries that compromise bone integrity.

Symptoms

• Pain localized to the top of the shoulder, especially with movement.
• Swelling, bruising, or tenderness over the acromial area.
• Limited range of motion in the shoulder joint.
• Difficulty lifting or rotating the arm.
• In severe cases, a visible deformity or instability may be present.

Diagnosis

Diagnosis begins with a physical examination to assess pain, swelling, and range of motion. Imaging studies, such as X-rays, are typically used to confirm the fracture and evaluate displacement. Additional imaging, like CT scans, may be ordered if the fracture is complex or if soft tissue damage is suspected.

Treatment Options

Treatment depends on the severity of the fracture and displacement. Non-displaced or minimally displaced fractures may be managed with immobilization, such as a sling, and pain relief. Displaced fractures often require surgical intervention to realign the bone fragments, followed by rehabilitation to restore function. Physical therapy is commonly recommended to improve mobility and strength.

Prognosis and Follow-Up

Most patients recover well with appropriate treatment, though recovery time varies based on fracture severity and treatment. Follow-up appointments are necessary to monitor healing and adjust rehabilitation plans. Full return to normal activities is typically possible, but some residual stiffness or weakness may persist.

Complications

Potential complications include nonunion (failure of the bone to heal), malunion (improper healing), chronic pain, or shoulder instability. Nerve or blood vessel damage near the fracture site is rare but possible. Infection may occur if surgery is performed.

Lifestyle & Prevention

Avoid high-impact activities that risk shoulder injury. Strengthen shoulder muscles through targeted exercises to improve stability. Use protective gear during contact sports. Maintain bone health with adequate calcium and vitamin D intake, especially for those with osteoporosis.

When to Seek Professional Help

Seek immediate medical attention if you experience severe shoulder pain, visible deformity, or inability to move the arm after an injury. Persistent pain, swelling, or difficulty with daily activities also warrants evaluation by a healthcare provider.

Tips for Medical Coders

Document the laterality (left shoulder) and displacement status clearly. Include details about the fracture's severity, treatment provided, and any associated injuries. Ensure the encounter type (e.g., initial, subsequent) is specified if applicable. Follow ICD-10-CM guidelines for accurate coding of traumatic fractures.