Three main problems that can cause a luxating patella. 1  The first abnormality that is usually present is a trochlear groove that is too shallow. In order for the patella not to jump out of this tract, the groove must be deep enough to accommodate and cradle the patella as it moves up and down in the groove.
The longest river in South Africa is the Orange River which starts off life in the Drakensberg Mountains and works its way westwards to Alexander Bay and then onto the west coast of South Africa.
What is the longest river in the world? The Nile River is the longest river because it has a total length of 6,650 kilometers. The mean basin discharge of the river is 99,941 cubic foot per second. The White Nile at Ugandaâs Lake Victoria and the Blue Nile at Ethiopiaâs Lake Tana are the two sources of the river. The White Nile starts at Mongallaâs Albert Nile. The flow rate of water of Albert Nile is 37,000 cubic foot per second. Albert Nile joins the swamps in Sudan.