Title Page
Contents
ABSTRACT 9
Chapter Ⅰ. Force-sensitive Resistors to Measure the Distribution of Weight in the Pads of Sound Dogs in Static Standing Position 11
1.1. Introduction 11
1.2. Materials and Methods 13
1.2.1. Animals 13
1.2.2. Experimental design 13
1.2.3. Statistical analysis 18
1.3. Results 19
1.4. Discussion 22
Chapter Ⅱ. Evaluation of Static Pedobarographic Changes and Patellofemoral Contact Mechanisms after Transposition of Tibial Tuberosity with 3D-Printed Patient-Specific Surgical Guide in Cadaveric Dogs 24
2.1. Introduction 24
2.2. Materials and Methods 26
2.2.1. Cadaveric specimens 26
2.2.2. Production of three-dimensionally printed patient-specific surgical guides 26
2.2.3. Production of tibial rotating devices 31
2.2.4. Experimental group and cadaveric surgical procedure 31
2.2.5. Experimental protocol 37
2.2.6. Pedobarographic analysis 39
2.2.7. Foot rotation angle analysis 39
2.2.8. Patellofemoral contact mechanism analysis 39
2.2.9. Statistical analysis 43
2.3. Results 44
2.3.1. Pedobarographic and foot rotation angle analysis 44
2.3.2. Patellofemoral contact mechanism analysis 44
2.4. Discussion 47
Conclusion 50
References 51
Abstract (in Korean) 58
Table 1-1. Intra-investigator reproducibility (95 % confidence intervals). 20
Table 1-2. Inter-investigator reliability (95 % confidence intervals). 21
Table 2-1. The pressure given to each pad and foot rotation angle of each condition 45
Table 2-2. The pressure to patellofemoral area and distance ratio of each condition 46
Figure 1-1. Instruments for static weight measurement. 14
Figure 1-2. Position of dog for static weight measurement. 15
Figure 1-3. Measurement of weight distribution. 17
Figure 2-1. Detailed design process of saw guiding unit. 29
Figure 2-2. Detailed design process of rotation guiding unit. 30
Figure 2-3. Design of tibial rotating devices. 34
Figure 2-4. Surgical procedure of transposition of tibial tuberosity using three- dimensionally printed patient-specific surgical guide by the intended angle. 35
Figure 2-5. Surgical procedure of transposition of tibial tuberosity using three- dimensionally printed patient-specific surgical guide by the intended angle (continued). 36
Figure 2-6. Testing apparatus. 38
Figure 2-7. Measurement of pedobarography and patellofemoral contact mechanisms. 41
Figure 2-8. The analysis of foot rotation angle and distance ratio using pressure distribution color scale graphic image. 42