What is the value of my knee injury after a car accident? Knee injuries can sometimes be devastating depending on the age of the injured party, occupation and lifestyle. In some cases serious injuries can result in knee replacement surgery or other arthroscopic surgery to help correct the damage caused. In other cases, those injured can require long term physical therapy in order to correct the injury. Here is a quick guide on calculating your knee injury claim. Medical Bills and How to Calculate Them Medical bills are often referred to as special damages. These are exact figures for various treatment rendered by medical professionals. For example costs of ambulance transport, surgeries and other medical services are considered special damages. In order to calculate special damages you will need to add together all costs and come up with a total figure. This is considered your medical expenses. Often times insurance companies will not pay you exactly for that amount, but it is a great starting point for understanding case value. It is also important to mention, that special damages are NOT future or speculative damages. These are damages or costs which were incurred by you and are not to be mistaken for future or potential medical care discussed below.