Bone mineral density in the femoral neck increases after hip resurfacing: a cohort with five-year follow-up.
Int Orthop
; 35(9): 1303-7, 2011 Sep.
Article
in En
| MEDLINE
| ID: mdl-20730585
Hip resurfacing is an effective treatment modality for arthritis of the hip in carefully selected patients; however, its use remains controversial due to its higher revision rates compared with conventional total hip replacement surgery. The most frequent reason for revision is femoral neck fracture, and preoperative bone mineral density is an important factor when considering the option of hip resurfacing. Whilst reduction in bone mineral density following total hip replacement is well documented, little is known about the long-term changes in femoral neck bone mineral density after hip resurfacing. We followed 15 patients (ten male and five female) who underwent unilateral hip resurfacing for osteoarthritis with standardised dual energy X-ray absorbiometry scans at two weeks, three months, one year, two years and five years postoperatively to determine changes in the femoral neck bone mineral density. Both males and females initially had decreases in bone mineral density at three months postoperatively, but had gradual mean increases to 119% of their initial measurements by five years. This study demonstrates that femoral neck bone mineral density increases after hip resurfacing and that this increase continues for at least five years.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Osteoarthritis, Hip
/
Bone Density
/
Arthroplasty, Replacement, Hip
/
Femur Neck
Type of study:
Etiology_studies
/
Incidence_studies
/
Observational_studies
/
Risk_factors_studies
Limits:
Female
/
Humans
/
Male
/
Middle aged
Language:
En
Journal:
Int Orthop
Year:
2011
Document type:
Article
Affiliation country:
Australia
Country of publication:
Germany