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Articles linked to this work by shared authors, journal, and citation graph.

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Same author

Lower septic revision rates following cementless compared with cemented robotic-assisted total knee arthroplasty using a single implant design : a five-year survivorship analysis.

The bone & joint journal·2026
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The "Distal Femoral Replacement Downgrade": Technique of Using Bicondylar Femoral Cones With a Hinge Total Knee Arthroplasty Revision in Patients Who Have Massive Distal Femoral Bone Loss as an Alternative.

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Jumbo Femoral Heads in Total Hip Arthroplasty: Improved Early Stability Without Added Complications.

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Systematic Review of Wound Complications After Direct Anterior Approach Total Hip Arthroplasty: Incidence, Risk Factors, and Management Strategies.

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Patient-Specific Flanged Acetabular Component Failure Is Associated With Excess Lateral Position Relative to Planned Position and Excess Cranial Position Relative to Anatomic Hip Center.

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Robotic-Assisted Surgery Does Not Decrease Prosthetic Impingement in Total Hip Arthroplasty: A Retrieval Analysis.

Sara E Sacher1, Jeffrey A O'Donnell2, Timothy M Wright1

  • 1Department of Biomechanics, Hospital for Special Surgery, New York, New York.

The Journal of Arthroplasty
|March 8, 2025
PubMed
Summary
This summary is machine-generated.

Robotic-assisted total hip arthroplasty (THA) did not reduce prosthetic impingement in acetabular liners compared to manual placement. This study found no significant difference in impingement prevalence or severity between the two groups.

Keywords:
acetabular anteversionacetabular inclinationimpingementretrieval analysisrobotic-assisted surgerytotal hip arthroplasty

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Area of Science:

  • Orthopedic surgery
  • Biomedical engineering
  • Robotics in medicine

Background:

  • Prosthetic impingement after total hip arthroplasty (THA) is linked to instability, polyethylene wear, and pain.
  • Retrieval studies indicate a high prevalence of impingement in acetabular liners.
  • Robotic technology offers potential for improved precision and implant positioning in THA.

Purpose of the Study:

  • To determine the prevalence and severity of acetabular liner impingement using robotic navigation.
  • To compare impingement rates between robotic-assisted and manually placed THA liners.

Main Methods:

  • 18 robotic-assisted and 11 non-robotic liners were assessed for impingement presence and severity.
  • Radiographic measurements of acetabular inclination and anteversion were analyzed.
  • Data on femoral head size, implantation duration, revision reason, age, gender, and BMI were collected.

Main Results:

  • 61% of robotic liners and 45% of non-robotic liners showed impingement (P=0.14).
  • Robotic group had lower variance in inclination and anteversion, but mean values were similar.
  • Impingement was not correlated with head size, implantation length, or demographic factors.

Conclusions:

  • Robotic-assisted THA with modern implants did not decrease prosthetic impingement prevalence or severity in retrieved acetabular liners.
  • The findings suggest robotic assistance may not currently mitigate impingement in revision THA.