The Collum Femoris Preserving (CFP) total hip system is an anatomically designed, Hydroxyapatite coated, Uncemented, end bearing prosthesis, requiring minimal bone resection of the femoral neck, with an anatomical,uncemented acetabular cup. We have performed 55 Total Hip arthroplasties using the CFP Total Hip system to date. The average age of our patients is 51.5 years (13 to 65). Original pathology was Osteoarthritis in 38 hips, avascular necrosis in 9 hips and rheumatoid arthritis in 8 hips. They have all been performed by the same surgeon via a posterior approach. The Average inpatient stay has been 6.5 days.We have had one lateral femoral wall burst (requiring no intervention), one calcar fracture, and three legs lengthened, but no other complications. Pain relief is equal to conventional hip replacement. The clinical scores have been excellent Harris hip scores average 93.8% at one year. 100% have been very satisfied on post operative ratings questioning.

This prosthesis is suitable for young patients in which maximal bone conservation is required with excellent short term follow up.