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Related Experiment Video

Updated: Jan 23, 2026

Individualized Stem-positioning in Calcar-guided Short-stem Total Hip Arthroplasty

Individualized Stem-positioning in Calcar-guided Short-stem Total Hip Arthroplasty

Published on: February 27, 2018

Computer Navigation vs Conventional Total Hip Arthroplasty: A Medicare Database Analysis.

Blake K Montgomery¹, Abiram Bala¹, James I Huddleston¹

¹Department of Orthopaedic Surgery, Stanford University, Redwood City, CA.

The Journal of Arthroplasty

|June 10, 2019

Summary

This summary is machine-generated.

Computer-assisted surgery (CAS) in total hip arthroplasty (THA) did not reduce short-term complications like dislocation. However, CAS-THA was linked to fewer blood clots but more fractures and revisions, indicating no overall benefit.

Keywords:

complications computer assisted computer navigated image guided total hip arthroplasty

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The Use of Mixed Reality in Custom-Made Revision Hip Arthroplasty: A First Case Report

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Published on: August 4, 2022

Area of Science:

Orthopedic Surgery
Medical Technology
Surgical Outcomes

Background:

Computer-assisted surgery (CAS) aims to improve implant positioning in total hip arthroplasty (THA).
The impact of CAS on postoperative complications following THA is not well-established.
This study investigates changes in complication rates associated with CAS in THA.

Purpose of the Study:

To evaluate the effectiveness of CAS in reducing adverse events after THA.
To compare complication rates between CAS-assisted THA and conventional THA.
To determine if CAS offers a clinical advantage in short-term outcomes.

Main Methods:

Analysis of the Medicare database from 2005 to 2012.
Identification of 64,944 THAs, including 5,412 CAS-THAs and 59,532 conventional THAs.
Collection and comparison of medical and surgical adverse events at various time points.

Main Results:

CAS-THA showed no significant decrease in dislocation rates at 30 days, 90 days, or 2 years.
CAS-THA was associated with a higher rate of periprosthetic fracture and revision THA within 30 and 90 days.
CAS-THA demonstrated a significantly lower rate of deep vein thrombosis and pulmonary embolism compared to conventional THA.

Conclusions:

Current administrative data do not support a significant short-term reduction in adverse events with CAS-THA.
Further research is needed to ascertain if CAS provides tangible benefits in reducing THA complications.
The study highlights mixed outcomes, with reduced thromboembolic events but increased mechanical complications.