Table 5. Changes in specific functions measured in IKDC and KOOS compared between femoral tunnel drilling techniques.

Answer choice (points assigned) for IKDC: unable to perform (0), light activities (1), moderate activities (2), strenuous activities (3), very strenuous activities (4). Answer choice (points assigned) for KOOS Q9e: none (0), mild (3), moderate (6), severe (8), extreme (11).

IKDS: International Knee Documentation Committee subjective evaluation form, KOOS: Knee Injury and Osteoarthritis Outcome Score, AMP-RR: anteromedial portal with rigid reaming, AMP-FR: anteromedial portal with flexible reaming

	Transtibial		AMP-RR		AMP-FR		p-value
	Median	Mean Rank	Median	Mean Rank	Median	Mean Rank
Δ IKDC Question 4: During the past 4 weeks, or since your injury, how stiff or swollen was your knee?	0.0	43.6	1.0	54.7	2.0	60.2	0.037*
Δ IKDC Question 9_1: How does your knee affect your ability to go up the stairs?	1.5	60.9	1.0	42.6	1.0	50.2	0.041*
Δ IKDC Question 9_2: How does your knee affect your ability to go down the stairs?	2.0	57.9	0.0	36.7	2.0	57.1	0.008*
Δ KOOS Question 9e: What amount of knee pain have you experienced in the last week while going up or down the stairs?	2.5	55.4	0.0	39.5	3.0	57.9	0.039*