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Intraoperative fluoroscopy likely no better than freehand technique for THA
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In patients undergoing total hip arthroplasty, intraoperative fluoroscopy may not improve prosthesis accuracy or decrease postoperative complication rates compared with a freehand technique, according to study results.
Researchers reviewed 341 patients undergoing primary total hip arthroplasty (THA) from September 2007 to January 2010, with 163 cases of unilateral primary THA without fluoroscopic guidance and 178 cases of unilateral primary THA with intraoperative fluoroscopic guidance. Acetabular inclination angle, leg length discrepancy and femoral offset discrepancy were measured with postoperative anteroposterior radiographs. Additionally, the researchers recorded operative time and postoperative complications related to implant positioning.
Results showed a mean acetabular inclination angle of 43° in the control group vs. 43.8° in the study group. The researchers also observed a leg length discrepancy of 4.75 mm in the control group vs. 4.24 mm in the study group, and an offset discrepancy of 8.47 mm in the control group vs. 7.7 mm in the study group.
No significant difference in complication rates were found between the two groups. However, the study group had a significantly higher mean operative time vs. the control group, according to the researchers. – by Casey Tingle
Disclosures: Tischler reports no relevant financial disclosures. Please see the full study for a list of all other authors’ relevant financial disclosures.
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