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Effects of Orthogeriatric Care Models on Outcomes of Hip Fracture Patients: a Systematic Review and Meta-Analysis

·Calcified Tissue International·2021·183 citations·Trauma
Free Full Text·DOI·PubMed
SummaryAbstract on PubMed →

This systematic review and meta-analysis of 37 studies (37,294 patients) evaluates whether orthogeriatric care improves outcomes for hip fracture patients. It compares three models — geriatric consultant service (GCS), geriatric ward (GW), and integrated care model (ICM) — against standard orthopedic care. Primary outcomes include length of stay, time to surgery, in-hospital and 1-year mortality, 30-day readmission, functional recovery, complications, and cost.

Study Snapshot

Design
Systematic review and meta-analysis
Setting: 37 studies; majority from European centers
Objective
Whether orthogeriatric care models improve LOS, mortality, TTS, readmission, function, and cost versus standard orthopedic care.
Outcome(s)
Length of stay, in-hospital mortality, 1-year mortality, delirium — all at index hospitalization or 1 year
Subjects
37,294 patients across 37 studies
  • 1,346Geriatric consultant service — GCS
  • 5,383Geriatric ward — GW
  • 6,544Integrated care model — ICM
Inclusion
  • Age >55 years, hospitalized with recent hip fracture
  • Clear description of orthogeriatric and standard care model
  • RCTs, controlled observational studies, or pre/post analyses
Exclusion
  • Pathological fractures or high-energy trauma
  • Studies without a control group
  • Studies not describing collaboration between surgeon and geriatrician
Follow-up
Up to 1 year (varies by study)
Statistics
Random-effects meta-analysisSidik-Jonkman estimatorKnapp-Hartung adjustmentLeave-one-out influence analysis

Key Findings

  • Orthogeriatric care reduced in-hospital mortality by 28% overall (RR 0.72, I²=36%). On subgroup analysis, only the integrated care model reached significance, with a 35% reduction (RR 0.65). The GCS and GW subgroups showed trends toward lower mortality but did not reach significance independently.
  • One-year mortality was 14% lower with orthogeriatric care overall (RR 0.86, 95% CI 0.76–0.97). No individual model subgroup achieved significance on its own — the mortality benefit requires all three models pooled to reach statistical significance.
  • Delirium risk was reduced by 19% (RR 0.81, I²=26%). The most statistically reliable finding in the paper. Low heterogeneity across 13 studies means this result is the most trustworthy, in contrast to the LOS and mortality analyses where high heterogeneity demands caution.
  • Length of stay was reduced by 1.55 days overall (I²=80%. Interpret with caution). The GCS subgroup showed the cleanest signal: −1.37 days with only moderate heterogeneity (I²=61%). ICM reduced LOS by 2.12 days but with very high heterogeneity (I²=81%). GW showed no significant LOS benefit.
  • Time to surgery was only significantly reduced in the GCS subgroup: −0.40 days (9.6 hours) with zero heterogeneity (I²=0%) across three studies. The overall analysis and ICM/GW subgroups did not reach significance. This matters because surgery within 48 hours is associated with a 20% lower 12-month mortality risk. Getting patients to the OR faster has direct survival implications.
  • Functional outcome results were inconsistent across all models. Some studies showed better ADL scores, others showed no difference. No meta-analysis was possible due to scale heterogeneity. The authors note that the Barthel Index may be insufficiently sensitive to detect subtle functional changes in this population.
  • All five cost studies showed numerically lower total costs per patient with orthogeriatric care. One ICM study (Ginsberg et al.) showed 23% fewer resources used per patient with improved disability-adjusted life years, supporting cost-effectiveness. Though data are too heterogeneous for pooled analysis.
Board PearlOrthogeriatric co-management reduces hip fracture in-hospital mortality by 28% and delirium by 19% — only the integrated care model reaches significance for mortality on subgroup analysis.

Clinical Relevance

Hip fracture in an elderly patient is not just a surgical problem — it is a geriatric emergency. The 1-year mortality of 8–36% reflects the frailty of this population, and prior evidence on which care model best addresses that frailty was conflicting.

This meta-analysis gives you a practical framework: all three orthogeriatric models reduce mortality and delirium compared to standard care, so any model is better than none. When your institution is choosing or advocating for a specific model, the data favor ICM for in-hospital mortality reduction (the only model with a statistically significant subgroup result), while GCS offers the cleanest, lowest-heterogeneity data for both LOS and time-to-surgery improvements.

For daily practice: getting your hip fracture patient to the OR within 48 hours is supported by a 20% mortality reduction in the literature cited here. And orthogeriatric co-management, particularly GCS, is associated with meaningfully shorter time to surgery. Delirium prevention through systematic geriatric screening is the most robust complication benefit across all models.

The authors are explicit that no single model can be declared superior, and functional outcome data remain too heterogeneous to guide model selection on that basis alone. Match the model to your institution's available resources.

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|

Effects of Orthogeriatric Care Models on Outcomes of Hip Fracture Patients: a Systematic Review and Meta-Analysis

·Calcified Tissue International·2021·183 citations·Trauma
Free Full Text·DOI·PubMed
SummaryAbstract on PubMed →

This systematic review and meta-analysis of 37 studies (37,294 patients) evaluates whether orthogeriatric care improves outcomes for hip fracture patients. It compares three models — geriatric consultant service (GCS), geriatric ward (GW), and integrated care model (ICM) — against standard orthopedic care. Primary outcomes include length of stay, time to surgery, in-hospital and 1-year mortality, 30-day readmission, functional recovery, complications, and cost.

Study Snapshot

Design
Systematic review and meta-analysis
Setting: 37 studies; majority from European centers
Objective
Whether orthogeriatric care models improve LOS, mortality, TTS, readmission, function, and cost versus standard orthopedic care.
Outcome(s)
Length of stay, in-hospital mortality, 1-year mortality, delirium — all at index hospitalization or 1 year
Subjects
37,294 patients across 37 studies
  • 1,346Geriatric consultant service — GCS
  • 5,383Geriatric ward — GW
  • 6,544Integrated care model — ICM
Inclusion
  • Age >55 years, hospitalized with recent hip fracture
  • Clear description of orthogeriatric and standard care model
  • RCTs, controlled observational studies, or pre/post analyses
Exclusion
  • Pathological fractures or high-energy trauma
  • Studies without a control group
  • Studies not describing collaboration between surgeon and geriatrician
Follow-up
Up to 1 year (varies by study)
Statistics
Random-effects meta-analysisSidik-Jonkman estimatorKnapp-Hartung adjustmentLeave-one-out influence analysis

Key Findings

  • Orthogeriatric care reduced in-hospital mortality by 28% overall (RR 0.72, I²=36%). On subgroup analysis, only the integrated care model reached significance, with a 35% reduction (RR 0.65). The GCS and GW subgroups showed trends toward lower mortality but did not reach significance independently.
  • One-year mortality was 14% lower with orthogeriatric care overall (RR 0.86, 95% CI 0.76–0.97). No individual model subgroup achieved significance on its own — the mortality benefit requires all three models pooled to reach statistical significance.
  • Delirium risk was reduced by 19% (RR 0.81, I²=26%). The most statistically reliable finding in the paper. Low heterogeneity across 13 studies means this result is the most trustworthy, in contrast to the LOS and mortality analyses where high heterogeneity demands caution.
  • Length of stay was reduced by 1.55 days overall (I²=80%. Interpret with caution). The GCS subgroup showed the cleanest signal: −1.37 days with only moderate heterogeneity (I²=61%). ICM reduced LOS by 2.12 days but with very high heterogeneity (I²=81%). GW showed no significant LOS benefit.
  • Time to surgery was only significantly reduced in the GCS subgroup: −0.40 days (9.6 hours) with zero heterogeneity (I²=0%) across three studies. The overall analysis and ICM/GW subgroups did not reach significance. This matters because surgery within 48 hours is associated with a 20% lower 12-month mortality risk. Getting patients to the OR faster has direct survival implications.
  • Functional outcome results were inconsistent across all models. Some studies showed better ADL scores, others showed no difference. No meta-analysis was possible due to scale heterogeneity. The authors note that the Barthel Index may be insufficiently sensitive to detect subtle functional changes in this population.
  • All five cost studies showed numerically lower total costs per patient with orthogeriatric care. One ICM study (Ginsberg et al.) showed 23% fewer resources used per patient with improved disability-adjusted life years, supporting cost-effectiveness. Though data are too heterogeneous for pooled analysis.
Board PearlOrthogeriatric co-management reduces hip fracture in-hospital mortality by 28% and delirium by 19% — only the integrated care model reaches significance for mortality on subgroup analysis.

Clinical Relevance

Hip fracture in an elderly patient is not just a surgical problem — it is a geriatric emergency. The 1-year mortality of 8–36% reflects the frailty of this population, and prior evidence on which care model best addresses that frailty was conflicting.

This meta-analysis gives you a practical framework: all three orthogeriatric models reduce mortality and delirium compared to standard care, so any model is better than none. When your institution is choosing or advocating for a specific model, the data favor ICM for in-hospital mortality reduction (the only model with a statistically significant subgroup result), while GCS offers the cleanest, lowest-heterogeneity data for both LOS and time-to-surgery improvements.

For daily practice: getting your hip fracture patient to the OR within 48 hours is supported by a 20% mortality reduction in the literature cited here. And orthogeriatric co-management, particularly GCS, is associated with meaningfully shorter time to surgery. Delirium prevention through systematic geriatric screening is the most robust complication benefit across all models.

The authors are explicit that no single model can be declared superior, and functional outcome data remain too heterogeneous to guide model selection on that basis alone. Match the model to your institution's available resources.

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