S82.033 Displaced transverse fracture of unspecified patella

Name of the Condition

• Displaced transverse fracture of unspecified patella

Summary

This condition involves a horizontal break in the kneecap (patella) where the bone fragments are not aligned. The transverse fracture pattern typically results from direct trauma, and displacement indicates the bone pieces have shifted from their normal position. The term "unspecified" means the side (left or right) is not documented.

Causes

Direct trauma to the knee, such as a fall onto the kneecap, a blow from an object, or a forceful contraction of the quadriceps muscle. High-impact injuries, like those from sports or motor vehicle accidents, are common triggers.

Risk Factors

• Participation in activities with a high risk of knee injury, such as contact sports or skiing.
• Osteoporosis or other bone-weakening conditions.
• Previous knee injuries or surgeries.
• Advanced age, which may reduce bone density.

Symptoms

• Sudden, severe pain in the knee.
• Swelling and bruising around the kneecap.
• Inability to straighten the knee or bear weight.
• Visible deformity or a gap in the kneecap area.
• A "popping" sensation at the time of injury.

Diagnosis

A physical examination to assess knee movement, swelling, and tenderness. Imaging studies, typically X-rays, to confirm the fracture and evaluate bone alignment. In some cases, a CT scan may be used to assess complex fractures or displacement.

Treatment Options

• Conservative management: Immobilization with a cast or brace to allow the bone to heal, and physical therapy to restore movement and strength.
• Surgical intervention: May be necessary to realign and stabilize the bone fragments, especially if the fracture is severely displaced or involves the joint surface.

Prognosis and Follow-Up

Most fractures heal with proper treatment, but recovery time varies. Follow-up care includes monitoring for healing progress and assessing knee function. Physical therapy is often recommended to regain strength and mobility. Long-term outcomes depend on the severity of the fracture and adherence to treatment.

Complications

• Nonunion or malunion of the fracture.
• Post-traumatic arthritis due to joint surface damage.
• Chronic pain or stiffness in the knee.
• Infection (if surgery is performed).

Lifestyle & Prevention

• Use protective gear during high-risk activities.
• Maintain bone health through diet and exercise.
• Avoid falls by improving balance and home safety.
• Strengthen knee muscles to reduce injury risk.

When to Seek Professional Help

Seek immediate medical attention if you experience severe knee pain, swelling, or inability to bear weight after an injury. Prompt evaluation is crucial to prevent complications and ensure proper treatment.

Tips for Medical Coders

Document the fracture type (transverse) and displacement status clearly. Note the unspecified side, as this affects code assignment. Ensure clinical documentation supports the diagnosis to align with coding guidelines.