Information for Medical Professionals
Modular femoral neck linked to reduced risk of osteolysis
Modular femoral neck systems used during total hip replacement surgery reduce the risk of osteolysis, it has been claimed.
According to research published in the Journal of Bone and Joint Surgery, modular systems used for total hip replacement procedures reduce the need for an elevated liner.
The scientists behind the study claimed a modular femoral neck replacement component "gives a better range of movement and allows the surgeon to make an accurate adjustment of leg length".
They looked at two groups of patients who had non-modular and modular cementless anatomical replacements.
Each group consisted of 74 patients - all of whom had hip dysplasia.
Mean follow-up was 14.5 years and they found that there was no disassociation or fracture of the modular neck in those observed.
Recent research published in BioMed Central Muskuloskeletal Disorder 2010 showed that in modular titanium alloy neck adapter failure following hip arthroplasty, the cause is often over-loading.
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