Clinical Innovation
Dual-Mobility Bearings in High-Risk Primary Hip Replacement
A risk-stratified protocol for selecting dual-mobility bearings in primary hip replacement, audited against dislocation rates.
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Specialty
Hip
Location
Mumbai, Maharashtra
Published
2 Mar 2024
Research type
Retrospective Study
Abstract
Demo abstract. A simple pre-operative risk score guided bearing selection; dislocation events were audited over three years against a historical comparator.
Description
The score combined neuromuscular disease, cognitive impairment, prior spine fusion and abductor deficiency.
The protocol deliberately kept the threshold explicit so it could be audited rather than left to case-by-case judgement.
Innovation / discovery
Making the selection rule explicit and auditable was the intervention; the implant itself was already available.
Surgical / procedural method
Retrospective cohort with protocol implementation midway, dislocation events tracked to three years.
Research findings
- Dislocation events were lower in the protocol period in the demo dataset.
- Bearing cost increase was offset by avoided revision episodes in a simple model.
- Spine-fusion history was the most frequently triggered criterion.
Attached documents
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Risk score sheet
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