How Much Rotation from an AP Position of the Ankle

question 63

Multiple Choice

How much rotation from an AP position of the ankle will typically produce an AP mortise projection?

• A)No rotation is necessary.
• B)45° to 60° lateral
• C)15° to 20° medial
• D)25° to 30° medial

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Definitions:

IRR

Internal Rate of Return (IRR) is a financial metric used to evaluate the profitability of investments, indicating the annualized rate of return that sets the net present value of all cash flows (both positive and negative) from a particular project equal to zero.

NPV

Net Present Value; a method used to evaluate the profitability of an investment by calculating the difference between the present value of cash inflows and outflows.

Payback Period

The length of time it takes for an investment to generate enough cash flow to recover its initial cost.

Present Values

Present Values represent the current value of a future amount of money or stream of cash flows given a specified rate of return.