Treatment for fractures of the lower end of the femur should be initiated within a few days. After six weeks, dressings can be removed, allowing the child to lie unrestrained in bed (Fig. 655). If an ambulatory pneumatic splint is used, the patient may move around during this period without additional supports. Gradual resumption of function begins at eight and nine weeks, with full weight-bearing by two and a half months post-injury. Prompt amputation might be necessary if gangrene or septicemia develops due to compromised circulation or infection.
Prognosis for such fractures is generally poor, especially when the knee joint becomes infected or the popliteal artery is damaged. Epiphyseal separation carries a particularly bad prognosis, particularly in compound cases. Gangrene of the leg can occur if the popliteal artery is injured, leading to death from gangrene, infection, embolism, etc.
Simple fractures without arterial damage often result in good function if condyles do not unite abnormally. Joint adhesions may develop in the knee; their severity decreases with proper use of Buck's extension during traumatic arthritis. Chronic villous arthritis is common after such fractures. <Callout type="important" title="Prompt Amputation">If gangrene or septicemia develops, prompt amputation might be necessary to save the patient's life.</Callout>
The surgeon should inform parents about potential complications following recovery with proper reduction of fragments.
Key Takeaways
- Immediate medical intervention is crucial for fractures at the lower end of the femur.
- Gradual resumption of weight-bearing and movement is recommended after six weeks.
- Prompt amputation may be necessary if gangrene or septicemia develops.
Practical Tips
- Use an ambulatory pneumatic splint to allow early mobility without compromising healing.
- Monitor for signs of infection and compromised circulation closely during recovery.
Warnings & Risks
- Severe complications such as joint adhesions, chronic arthritis, or even death can occur if proper care is not provided.
- Prompt amputation might be necessary in cases where gangrene or septicemia develops.
Modern Application
While the medical advancements have improved diagnostic tools and surgical techniques for treating femur fractures, the principles of early intervention, gradual rehabilitation, and vigilant monitoring remain crucial. Understanding these historical methods can still provide valuable insights into managing such injuries effectively.
Frequently Asked Questions
Q: What is the recommended timeline for resuming full weight-bearing after a lower end femur fracture?
Full weight-bearing should be resumed by two and a half months post-injury, provided there are no complications.
Q: Why is prompt amputation necessary in some cases of femur fractures?
Prompt amputation may be required if gangrene or septicemia develops due to compromised circulation or infection, which can threaten the patient's life.
Q: What are the potential long-term complications following a lower end femur fracture?
Potential complications include joint adhesions in the knee and chronic villous arthritis. Epiphyseal separation also carries a particularly poor prognosis, especially if it is compound.