RATIONALE: Collecting and storing bone samples from patients with osteoporotic and nonosteoporotic fracture to study a special vessel subtype in the laboratory may help surgeon learn more about the relationship between bone mineral density (BMD) and a special vessel subtype (type H vessel).

PURPOSE: This research study is looking at changes of a special vessel subtype in bone samples from patients with osteoporotic and nonosteoporotic fracture.

OBJECTIVES:

1. Establish type H vessel in bone specimen in patients with hip fracture.
2. Explore the correlation of BMD and type H vessel.

OUTLINE:

1. Collect human bone specimens from patients with Osteoporotic and Nonosteoporotic Fracture.
2. Provide a repository for storage of tissue and make these specimens available for approved projects by laboratory-based investigators.
3. Observe the type H vessel in bone slice by immunofluorescence staining.
4. Collect clinical data on these patients including bone mineral density.
5. Investigate the relationship between BMD and type H vessel.

Inclusion Criteria:

1. Ages Eligible for Study: 65-75 Years
2. Genders Eligible for Study: Woman
3. Accepts Healthy Volunteers: NO
4. Study Population: Female patients with hip fracture. -

Exclusion Criteria:

1. Malignancy or benign ovarian cysts
2. Known chronic or systemic diseases
3. Hormone therapy in the previous 3 months
4. Bone metabolism and drug therapy