STRESS FRACTURES-AVN

SUMMARY

1. Death of bone resulting from a lack of blood supply. Femoral head, navicular and scaphoid are commonly affected.

2. Disruption of the normal blood supply to the femoral head can be caused by various conditions including trauma, high doses of corticosteroids, alcohol abuse, and systemic illness (such as diabetes, lupus, and sickle cell anemia).

3. The severity of symptoms with avascular necrosis is usually related to the degree of articular surface disruption.

4. Symptoms similar to hip OA: groin pain with weight-bearing, pain on internal rotation, flexion, adduction.

5. Radiographs: sclerosis of femoral head or collapse. MRI/CT is the inx of choice.

6. Management: joint replacement.

Reference(s)

Wilkinson, I., Furmedge, D. and Sinharay, R. (2017). Oxford handbook of clinical medicine. Oxford: Oxford University Press. Get it on Amazon.
Feather, A., Randall, D. and Waterhouse, M. (2020). Kumar And Clark’s Clinical Medicine. 10th ed. S.L.: Elsevier Health Sciences. Get it on Amazon.
Hannaman, R. A., Bullock, L., Hatchell, C. A., & Yoffe, M. (2016). Internal medicine review core curriculum, 2017-2018. CO Springs, CO: MedStudy.
Therapeutic Guidelines. Melbourne: Therapeutic Guidelines Limited. https://www.tg.org.au [Accessed 2021].