What question did this study set out to answer?

To determine the prevalence and histopathological characteristics of secondary extension in osteonecrosis of the femoral head.

March 1, 1999Journal of Bone and Joint Surgery - British Volume

The prevalence and clinicopathological appearance of extension of osteonecrosis in the femoral head

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Authors

TYTakuaki YamamotoFukuoka University EDEdward F. DiCarloHospital for Special Surgery PBPeter G. BulloughCornell University

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Implication

Retrospective pathological review reveals lesion extension in only 0.3% of resected femoral heads, suggesting osteonecrosis typically arises from a single ischemic event.

Key Points

To determine the prevalence and histopathological characteristics of secondary extension in osteonecrosis of the femoral head.
Retrospective histopathological evaluation of 606 consecutive femoral heads surgically excised due to osteonecrosis.
Microscopic analysis to identify necrotic enlargement advancing past the primary repair zone into previously healthy bone tissue.
Secondary extension of osteonecrosis was identified in only 2 of 606 femoral heads (0.3%).
Both extended cases featured wedge-shaped necrotic lesions occupying more than 80% of the femoral head.

Cite This Study

Yamamoto et al. (1999) studied this question.

synapsesocial.com/papers/6a093182a419c5e264d267cf https://doi.org/10.1302/0301-620x.81b2.0810328

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Implication

Retrospective pathological review reveals lesion extension in only 0.3% of resected femoral heads, suggesting osteonecrosis typically arises from a single ischemic event.

The prevalence and clinicopathological appearance of extension of osteonecrosis in the femoral head

Discussion

Member takes

Implication

Key Points

Cite This Study

The prevalence and clinicopathological appearance of extension of osteonecrosis in the femoral head

Discussion

Member takes

Implication

Key Points

Cite This Study

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