Diferences in 3D Gait Analysis After Various Types of Total Hip Arthroplasty

The Gait Profile Score (GPS) is a numerical index (range 0-10, the lesser the number, the better for the patient). The GPS comprises of the kinematic parameteres that are also called the Gait Variable Scores (hip flexion, rotation and abduction) and the spatiotemporal parameters (step time, step length and step cadence). All of these parameters are also mentioned ad separate outcome measures. The extraction of GPS from the 2 basic data groups was done automaticaly through specialised software which is based on the work of Baker et al. (Baker R, McGinley JL, Schwartz MH, et al. The gait profile score and movement analysis profile. Gait Posture. 2009;30(3):265-269. doi:10.1016/j.gaitpost.2009.05.020).

Total range of the questionnaire is 0-100 points, more points=better patient reported outcome. 90-100 points = excellent result; 80-89 = good result; 70-79 = fair result; < 70 points = poor result.

One of the measured spatiotemporal parameters assessing the duration of a step measured in seconds. The parameter does not have a physiological normative scale.

One of the kinematic gait parameters = Gait Variable Scores measured in degrees. Physiological range of hip flexion is 0 to 130 degrees, the higher the range, the better for the patient.

One of the measured spatiotemporal parameters assessing the length of each step measured in meters. The parameter does not have a physiological normative scale.

One of the measured spatiotemporal parameters assessing the number of steps in a minute. The parameter does not have a physiological normative scale.

One of the kinematic gait parameters = Gait Variable Scores measured in degrees. Physiological range of hip eternal rotation is 0 to 60 degrees. The higher the range, the better for the patient.

One of the kinematic gait parameters = Gait Variable Scores measured in degrees. Physiological range of hip abduction is 0 to 45 degress. The higher the range, the better for the patient.