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Patellofemoral joint motion: evaluation by ultrafast computed tomography
W Stanford1, J Phelan, M H Kathol
1Department of Radiology, University of Iowa Hospitals, Iowa City 52242.
Skeletal Radiology
|January 1, 1988
Summary
Ultrafast CT imaging provides objective measurements of patellofemoral relationships during active knee motion. This technique allows for better evaluation of patellar maltracking, a common cause of knee pain.
Area of Science:
- Orthopedics
- Radiology
- Biomechanics
Background:
- Patellofemoral maltracking is a common cause of peripatellar pain.
- Current clinical evaluation relies on subjective observation and static imaging.
- Objective dynamic measurements of patellofemoral relationships are lacking.
Purpose of the Study:
- To introduce ultrafast computed tomography (CT) for dynamic patellofemoral assessment.
- To establish normal ranges for patellofemoral relationships during active knee motion.
- To provide an objective tool for evaluating suspected patellar maltracking.
Main Methods:
- Utilized ultrafast CT to image the patellofemoral joint.
- Captured dynamic images as the knee moved from 90 degrees flexion to full extension.
- Analyzed patellofemoral relationships under active muscle contraction.
Main Results:
- Demonstrated the feasibility of ultrafast CT for dynamic patellofemoral analysis.
- Reported initial observations and established a range of normal values.
- Highlighted objective insights into muscle influence on patellar tracking.
Conclusions:
- Ultrafast CT offers objective, dynamic assessment of patellofemoral joint.
- This method can aid in the diagnosis of patellar maltracking.
- Provides a valuable tool for clinicians evaluating knee pain.