Bone density in relation to failure in patients with osteosynthesized femoral neck fractures

Research output: Contribution to conference without publisher/journalConference abstract for conferenceResearch

Abstract

Background
The treatment of femoral neck fracture with internal fixation (IF) is recommended in younger patients and has compared to arthroplasty the advantage of retaining the femoral head. A big problem with osteosynthesis is though failure. Finding predictors for fixation failure is still an ongoing process and osteoporosis has been suggested as a predictor.
Aim
To correlate bone mineral density (BMD) in regard to failure of IF in osteosynthesized femoral neck fractures.
Material and method
In a health technology assessment study from 2005-2006 at Odense University Hospital, Department of Orthopaedic Surgery and Traumatology, 175 patients with femoral neck fractures accepted DEXA –scanning of the hip and lumbar spine assessing BMD. Final follow-up were 01.08.2010 and 141 patients with IF comprised the final cohort. The cohort consisted of 105 females and 36 males with a mean (CI) age of 77,2 (75,4-79,0). Failure is defined as revision surgery or new fracture.
Results
69 patients had a t-score (total hip) below -2,5 SD as defined for osteoporosis. At 1 year the overall (dislocated) failure rate was 34,5 % (44,7 %), at 2 years 45,4 % (60,0 %) and at end of follow-up 49,6 % (62,8 %). In the cox regression analysis the following factors for failure were significant: dislocated fracture, osteosynthesis placement and prior fracture. There were no associations for total hip BMD, neck BMD, age, sex, quality of fracture reduction, walking disability, independent living, alcohol or smoking. A cox regression sub analysis of the undisplaced fractures showed significant result only for osteosynthesis placement.
Conclusion
There is no association between BMD and failure of internal fixation in osteosynthesized femoral neck fractures.

Original languageEnglish
Publication date3. Jun 2011
Publication statusPublished - 3. Jun 2011
Event12th EFORT Congress 2011 - Copenhagen, Denmark
Duration: 1. Jun 20114. Jun 2011

Conference

Conference12th EFORT Congress 2011
CountryDenmark
CityCopenhagen
Period01/06/201104/06/2011

Cite this

@conference{f5d3a84298e34f21917b4fd203d3682a,
title = "Bone density in relation to failure in patients with osteosynthesized femoral neck fractures",
abstract = "Background The treatment of femoral neck fracture with internal fixation (IF) is recommended in younger patients and has compared to arthroplasty the advantage of retaining the femoral head. A big problem with osteosynthesis is though failure. Finding predictors for fixation failure is still an ongoing process and osteoporosis has been suggested as a predictor. Aim To correlate bone mineral density (BMD) in regard to failure of IF in osteosynthesized femoral neck fractures. Material and method In a health technology assessment study from 2005-2006 at Odense University Hospital, Department of Orthopaedic Surgery and Traumatology, 175 patients with femoral neck fractures accepted DEXA –scanning of the hip and lumbar spine assessing BMD. Final follow-up were 01.08.2010 and 141 patients with IF comprised the final cohort. The cohort consisted of 105 females and 36 males with a mean (CI) age of 77,2 (75,4-79,0). Failure is defined as revision surgery or new fracture. Results 69 patients had a t-score (total hip) below -2,5 SD as defined for osteoporosis. At 1 year the overall (dislocated) failure rate was 34,5 {\%} (44,7 {\%}), at 2 years 45,4 {\%} (60,0 {\%}) and at end of follow-up 49,6 {\%} (62,8 {\%}). In the cox regression analysis the following factors for failure were significant: dislocated fracture, osteosynthesis placement and prior fracture. There were no associations for total hip BMD, neck BMD, age, sex, quality of fracture reduction, walking disability, independent living, alcohol or smoking. A cox regression sub analysis of the undisplaced fractures showed significant result only for osteosynthesis placement. Conclusion There is no association between BMD and failure of internal fixation in osteosynthesized femoral neck fractures.",
author = "Bjarke Viberg and Jesper Ryg and Jens Lauritsen and S{\o}ren Overgaard and Ole Ovesen",
year = "2011",
month = "6",
day = "3",
language = "English",
note = "null ; Conference date: 01-06-2011 Through 04-06-2011",

}

Viberg, B, Ryg, J, Lauritsen, J, Overgaard, S & Ovesen, O 2011, 'Bone density in relation to failure in patients with osteosynthesized femoral neck fractures', 12th EFORT Congress 2011, Copenhagen, Denmark, 01/06/2011 - 04/06/2011.

Bone density in relation to failure in patients with osteosynthesized femoral neck fractures. / Viberg, Bjarke; Ryg, Jesper; Lauritsen, Jens; Overgaard, Søren; Ovesen, Ole.

2011. Abstract from 12th EFORT Congress 2011, Copenhagen, Denmark.

Research output: Contribution to conference without publisher/journalConference abstract for conferenceResearch

TY - ABST

T1 - Bone density in relation to failure in patients with osteosynthesized femoral neck fractures

AU - Viberg, Bjarke

AU - Ryg, Jesper

AU - Lauritsen, Jens

AU - Overgaard, Søren

AU - Ovesen, Ole

PY - 2011/6/3

Y1 - 2011/6/3

N2 - Background The treatment of femoral neck fracture with internal fixation (IF) is recommended in younger patients and has compared to arthroplasty the advantage of retaining the femoral head. A big problem with osteosynthesis is though failure. Finding predictors for fixation failure is still an ongoing process and osteoporosis has been suggested as a predictor. Aim To correlate bone mineral density (BMD) in regard to failure of IF in osteosynthesized femoral neck fractures. Material and method In a health technology assessment study from 2005-2006 at Odense University Hospital, Department of Orthopaedic Surgery and Traumatology, 175 patients with femoral neck fractures accepted DEXA –scanning of the hip and lumbar spine assessing BMD. Final follow-up were 01.08.2010 and 141 patients with IF comprised the final cohort. The cohort consisted of 105 females and 36 males with a mean (CI) age of 77,2 (75,4-79,0). Failure is defined as revision surgery or new fracture. Results 69 patients had a t-score (total hip) below -2,5 SD as defined for osteoporosis. At 1 year the overall (dislocated) failure rate was 34,5 % (44,7 %), at 2 years 45,4 % (60,0 %) and at end of follow-up 49,6 % (62,8 %). In the cox regression analysis the following factors for failure were significant: dislocated fracture, osteosynthesis placement and prior fracture. There were no associations for total hip BMD, neck BMD, age, sex, quality of fracture reduction, walking disability, independent living, alcohol or smoking. A cox regression sub analysis of the undisplaced fractures showed significant result only for osteosynthesis placement. Conclusion There is no association between BMD and failure of internal fixation in osteosynthesized femoral neck fractures.

AB - Background The treatment of femoral neck fracture with internal fixation (IF) is recommended in younger patients and has compared to arthroplasty the advantage of retaining the femoral head. A big problem with osteosynthesis is though failure. Finding predictors for fixation failure is still an ongoing process and osteoporosis has been suggested as a predictor. Aim To correlate bone mineral density (BMD) in regard to failure of IF in osteosynthesized femoral neck fractures. Material and method In a health technology assessment study from 2005-2006 at Odense University Hospital, Department of Orthopaedic Surgery and Traumatology, 175 patients with femoral neck fractures accepted DEXA –scanning of the hip and lumbar spine assessing BMD. Final follow-up were 01.08.2010 and 141 patients with IF comprised the final cohort. The cohort consisted of 105 females and 36 males with a mean (CI) age of 77,2 (75,4-79,0). Failure is defined as revision surgery or new fracture. Results 69 patients had a t-score (total hip) below -2,5 SD as defined for osteoporosis. At 1 year the overall (dislocated) failure rate was 34,5 % (44,7 %), at 2 years 45,4 % (60,0 %) and at end of follow-up 49,6 % (62,8 %). In the cox regression analysis the following factors for failure were significant: dislocated fracture, osteosynthesis placement and prior fracture. There were no associations for total hip BMD, neck BMD, age, sex, quality of fracture reduction, walking disability, independent living, alcohol or smoking. A cox regression sub analysis of the undisplaced fractures showed significant result only for osteosynthesis placement. Conclusion There is no association between BMD and failure of internal fixation in osteosynthesized femoral neck fractures.

M3 - Conference abstract for conference

ER -