Navigated Acetabular Cup Fixation for Acetabular Deformity or Revision Total Hip Arthroplasty
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Purpose: To evaluate the usefulness of navigated acetabular cup fixation for total hip arthroplasty in patientswith acetabular deformity or revision total hip arthroplasty. Materials and Methods: This study enrolled 28 patients with at least 12 months’ follow-up. The safe zone ofthe acetabular cup was defined as 40。±10。in inclination and 15。±10。in anteversion. The authors used thenavigation and radiographic data to determine whether the acetabular cup was located within the safe zone ornot. To evaluate the clinical outcomes, preoperative and last follow-up Harris hip scores were checked, and theoccurrence of complications was evaluated. Results: According to the navigation data, the mean inclination and anteversion were 38.5。±4.7。(range, 32。-50。) and 16.6。±4.0。(range, 8。-23。), respectively. According to the radiographic data the mean inclination andanteversion were 40.5。±4.6。(range, 32。-50。) and 19.4。±4.2。(range, 8。-25。), respectively. In both cases, allvalues were within the safe zone. Harris hip score was improved in all patients from preoperative 52.3±14.4points (range, 29-87 points) to 88.0±9.0 points (range, 65-99 points) at the last follow-up. There was nodislocation or loosening of both cases. Conclusion: Navigated acetabular cup fixation is a useful technique for total hip arthroplasty in patients withacetabular deformity or revision total hip arthroplasty because it prevents the malposition and related complications.
Abstract
Purpose: To evaluate the usefulness of navigated acetabular cup fixation for total hip arthroplasty in patientswith acetabular deformity or revision total hip arthroplasty. Materials and Methods: This study enrolled 28 patients with at least 12 months’ follow-up. The safe zone ofthe acetabular cup was defined as 40。±10。in inclination and 15。±10。in anteversion. The authors used thenavigation and radiographic data to determine whether the acetabular cup was located within the safe zone ornot. To evaluate the clinical outcomes, preoperative and last follow-up Harris hip scores were checked, and theoccurrence of complications was evaluated. Results: According to the navigation data, the mean inclination and anteversion were 38.5。±4.7。(range, 32。-50。) and 16.6。±4.0。(range, 8。-23。), respectively. According to the radiographic data the mean inclination andanteversion were 40.5。±4.6。(range, 32。-50。) and 19.4。±4.2。(range, 8。-25。), respectively. In both cases, allvalues were within the safe zone. Harris hip score was improved in all patients from preoperative 52.3±14.4points (range, 29-87 points) to 88.0±9.0 points (range, 65-99 points) at the last follow-up. There was nodislocation or loosening of both cases. Conclusion: Navigated acetabular cup fixation is a useful technique for total hip arthroplasty in patients withacetabular deformity or revision total hip arthroplasty because it prevents the malposition and related complications.
참고문헌 (32)
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