S52.621 Torus fracture of lower end of right ulna

Name of the Condition

• Torus fracture of lower end of right ulna

Summary

A torus fracture of the lower end of the right ulna is a stable, incomplete break in the distal portion of the ulna, one of the forearm bones. This type of fracture typically occurs in children due to the bone's flexibility and is characterized by buckling of the bone cortex without significant displacement. The injury often results from a fall onto an outstretched hand and may involve minimal soft tissue damage. Treatment usually focuses on immobilization to allow healing, with a low risk of long-term complications.

Causes

The most common cause is trauma, such as a fall onto an outstretched hand, a direct blow to the forearm, or a high-impact injury. The force transmitted through the wrist or elbow can lead to buckling of the distal ulna, particularly in pediatric patients with more pliable bones.

Risk Factors

• Participation in activities with a high risk of falls (e.g., sports, playground activities)
• Pediatric age group, as bones are more flexible and prone to torus fractures
• Osteoporosis or reduced bone density (less common in children but relevant in older populations)
• Previous forearm or wrist injuries
• Certain occupations or hobbies involving repetitive stress or heavy lifting

Symptoms

• Mild to moderate pain at the injury site
• Swelling or tenderness over the distal ulna
• Limited range of motion in the wrist or elbow
• Possible deformity or prominence at the fracture site
• No visible bone protrusion through the skin (closed fracture)

Diagnosis

Diagnosis is confirmed through physical examination to assess pain, swelling, and deformity. Imaging studies, such as X-rays, are typically used to identify the characteristic buckling of the bone cortex. The absence of significant displacement distinguishes torus fractures from other fracture types.

Treatment Options

Treatment usually involves immobilization with a cast or splint to stabilize the fracture and allow healing. Pain management may include over-the-counter analgesics. Follow-up imaging may be performed to monitor healing, and physical therapy is sometimes recommended to restore range of motion once the fracture has healed.

Prognosis and Follow-Up

Prognosis is generally excellent, with most torus fractures healing completely without long-term complications. Follow-up care typically includes monitoring for pain resolution and assessing range of motion. Return to normal activities is usually possible within a few weeks to months, depending on the severity and patient age.

Complications

Complications are rare but may include delayed healing, malunion, or persistent pain. Nerve or vascular injury is uncommon due to the stable nature of the fracture. In rare cases, growth disturbances may occur in pediatric patients if the fracture involves the growth plate.

Lifestyle & Prevention

• Use protective gear during high-risk activities (e.g., sports, playground play)
• Maintain bone health through adequate nutrition (e.g., calcium, vitamin D)
• Avoid falls by using proper safety measures (e.g., handrails, non-slip surfaces)
• Engage in regular weight-bearing exercise to strengthen bones (for adults)

When to Seek Professional Help

Seek medical attention if pain worsens, swelling increases, or there is visible deformity. Immediate care is needed if numbness, tingling, or loss of circulation occurs, as these may indicate nerve or vascular involvement.

Tips for Medical Coders

Document the specific location (lower end of right ulna) and fracture type (torus) to ensure accurate coding. Include details about the fracture's stability, displacement, and any associated injuries. Note the patient's age, as torus fractures are more common in children, and specify the right-sided nature of the injury for precise code assignment.