S62.21 Bennett's fracture

Name of the Condition

• Bennett's fracture

Summary

This condition is a specific type of fracture involving the base of the first metacarpal bone, which connects the thumb to the wrist. It typically occurs at the joint surface and may involve displacement of the bone fragment. The fracture often results from a forceful impact to the thumb, leading to instability at the carpometacarpal joint.

Causes

Commonly caused by direct trauma, such as a fall onto an outstretched hand or a forceful blow to the thumb. This type of injury is frequently associated with activities that place stress on the thumb, including sports or manual labor.

Risk Factors

• Participation in contact sports or activities with a high risk of falls.
• Osteoporosis or weakened bone structure, especially in older adults.
• Previous hand or thumb injuries that may have compromised bone integrity.

Symptoms

• Pain, swelling, and tenderness at the base of the thumb.
• Bruising or discoloration around the injury site.
• Limited range of motion or difficulty moving the thumb.
• Visible deformity in severe cases.

Diagnosis

Physical examination to assess pain, swelling, and mobility. Imaging tests, such as X-rays, CT scans, or MRIs, to confirm the fracture and evaluate its extent, including any joint involvement or displacement.

Treatment Options

• Immobilization: Using a cast, splint, or brace to stabilize the area and promote healing.
• Pain management: Medications to reduce discomfort and inflammation.
• Surgical intervention: May be required for displaced fractures to realign and stabilize the bone.

Prognosis and Follow-Up

Recovery depends on the severity of the fracture and treatment. Immobilization and proper care typically lead to healing within several weeks. Follow-up imaging may be needed to ensure proper alignment and healing progress.

Complications

• Chronic pain or stiffness in the thumb.
• Arthritis or joint damage if the fracture affects the joint surface.
• Nerve or tendon injury in severe cases.

Lifestyle & Prevention

• Use protective gear during high-risk activities.
• Strengthen hand and thumb muscles to improve stability.
• Avoid repetitive or forceful thumb movements that may increase injury risk.

When to Seek Professional Help

Seek immediate medical attention if you experience severe pain, visible deformity, or inability to move the thumb after an injury.

Tips for Medical Coders

Document the specific location (base of first metacarpal) and any associated joint involvement. Ensure clinical notes specify whether the fracture is displaced or non-displaced, as this may impact coding accuracy.