Three-dimensional Planning and Virtual Radiographs in Revision Total Hip Arthroplasty for Instability

M.J. Seel, M.A. Hafez, Kort Eckman, Branislav Jaramaz, , Davidson, and Anthony M. Digioia
Clinical Orthopaedics and Related Research, Vol. 442, January, 2006, pp. 35 - 38.


Abstract
Instability is one of the most challenging complications of total hip arthroplasty. The cause of instability is not always clear and treatment outcome is not always satisfactory. Treatment can be optimized by accurate identification of the cause of instability and precise surgical technique. In this case report, we illustrate the use of a three-dimensional (3-D) preoperative planner and virtual radiographic system to improve component position in revision total hip arthroplasty required because of recurrent dislocation. Using this technique, we identified common problems seen in patients with unstable hips after previous revision surgery including impingement, cup malpositioning, bone deficiency in the medial wall, and integrity of fixation screws. The computer-assisted system allowed preoperative planning with range of motion simulation and optimization of the acetabular cup position. The virtual radiographic system provided 3-D measurement of the cup position using a postoperative plane radiograph.

Notes
Associated Center(s) / Consortia: Medical Robotics Technology Center
Associated Lab(s) / Group(s): Medical Robotics and Computer Assisted Surgery
Associated Project(s): Hip Navigation System
Number of pages: 4

Text Reference
M.J. Seel, M.A. Hafez, Kort Eckman, Branislav Jaramaz, , Davidson, and Anthony M. Digioia, "Three-dimensional Planning and Virtual Radiographs in Revision Total Hip Arthroplasty for Instability," Clinical Orthopaedics and Related Research, Vol. 442, January, 2006, pp. 35 - 38.

BibTeX Reference
@article{Eckman_2006_5791,
   author = "M.J. Seel and M.A. Hafez and Kort Eckman and Branislav Jaramaz and and Davidson and Anthony M Digioia",
   title = "Three-dimensional Planning and Virtual Radiographs in Revision Total Hip Arthroplasty for Instability",
   journal = "Clinical Orthopaedics and Related Research",
   pages = "35 - 38",
   month = "January",
   year = "2006",
   volume = "442",
}