## 2 Classification of Compression Garments and Specific Requirements
\begin{table}
\begin{tabular}{c c c} \hline
**Support** & **Description** & **Functionality** \\ \hline \multicolumn{3}{c}{Functional Prevention} \\ \hline \multirow{6}{*}{[46]} & & Combination of a knee support and a patellar support strap for reliable guidance and stabilisation of the knee joint, thus relieving tension on the patellar (tendon) insertion. \\  & Compression knee support with patellar strap & Indicated for patellar tendinitis, Osgood-Schlatter disease, patellofemoral pain syndrome, chondropathia, retro patellar arthrosis, etc. [46]. \\ \cline{2-3}  & & Protects knee joint from injury during a variety of contact sports. Especially used for sport activities like volleyball, handball, etc. Some special inserts can be used such as padded inserts or other additional elements for shock absorption [47]. \\ \hline \multicolumn{3}{c}{Functional post-trauma supports} \\ \hline \multirow{6}{*}{[13]} & & Ice therapy helps to reduce swelling and pain with gentle compression. Indicated for sprains, strains, tendonitis and post activity soreness and swelling. Can be used as a heat therapy to loosen stiff muscles and to relieve arthritis and muscle spasm pain [13]. \\ \cline{2-3}  & & The structure with a silicone ring increases knee patellar fixation and stabilisation in the correct position. Indicated for patellar ligament looseness, strain, tear or immersion, tendomyopathy and after the patellar ligament plastic surgery [20,45]. \\ \cline{2-3}  & & It is a distinct alternative to basic knee sleeves. Indicated for general anterior knee pain, chondomalacia patella, Osgood–Schlatter disease, quadriceps and patella tendonitis strain [48]. \\ \cline{2-3}  & & Improves proprioceptive performance that reinforces muscular support of the knee joint. Used to decrease pain associated with patellofemoral malignant or mild instabilities of the knee joint [11,13]. \\ \cline{2-3}  & & Functional post-operative supports \\ \hline \multirow{6}{*}{[46]} & & Indicated for temporary post-operative immobilisation at 0 degrees or pre-operative pain conditions, also can be used for following patella dislocations and after ligament injuries [11,46]. \\ \cline{2-3}  & & Injected to reduce pain and speed recovery after major ligament surgeries, cartilage (meniscus) repair, patella realignment, stable femoral fracture and regenerative chondroplasty [47]. \\ \cline{2-3}  & & Injected to reduce pain and speed recovery after major ligament surgeries, cartilage (meniscus) repair, patella realignment, stable femoral fracture and regenerative chondroplasty [47]. After various injuries, the joints of the knee must be immobilised by a certain constrictive force that restricts movements. The aim of immobilisation is to prevent the overextension of reconstructed or resilient tissues. It must be a stiff or partially stiff mean of implement that is used to strengthen the weak or deformed part of the body or to restrict movement in an unhealthy or injured body part [50]. After knee injury, the joints are immobilised at an angle of 30-45\({}^{\circ}\). This position is optimal for operated linings and meniscus. Functional post-operative/rehabilitation supports are indicated for short-term use (about 2-8 weeks) [5; 50]. However, the average immobilisation time is 2-3 weeks. Other functional knee supports can be worn from 6 to 12 months [5; 50; 51]. Long-term immobilisation can be the result of atrophic knee processes. If immobilisation takes too long, its effect may be harmful [28; 52]. It is very important to notice that the means of orthopaedic devices should be selected individually. It should not disturb blood circulation due to pressure on the limb, it should not be too loose and should not slip away, and it should not have sharp corners. It is necessary to constantly monitor the condition of the skin at the site of application, especially if the sensitivity of the patient is abnormal. The patient should be informed about possible skin damage and perform skin care properly.