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.
River Nile is the longest river in Africa with Lake Victoria as its source. The river starts its 6,500km journey to the Mediterranean Sea (Egypt) beside Jinja town (Uganda) and holds the Owen Falls Dam the source of hydro electricity for Uganda with one other dam under construction currently.iver Nile is well known to be the longest river in the world. Its source starts right from Jinja Uganda, some people may be wondering how the name Nile come about.