title: Thermal effects of cement mantle thickness for hip resurfacing.
abstract: Hybrid hip resurfacing arthroplasty with uncemented acetabular and cemented femoral fixation is increasingly becoming popular as an alternative to total hip arthroplasty. There is concern about femoral neck fractures, and long-term survival has not yet been demonstrated. Thermal necrosis may be an important factor for neck fracture and will affect the viability of the femoral bone. This cadaveric study investigated the thermal effect of thick (1.5 mm, n = 3) and thin (0.5 mm, n = 3) cement mantles; 5 thermocouples were used to record temperature at the femoral bone/cement interface during hip resurfacing arthroplasty. The highest recorded temperatures were significantly higher when a thick cement mantle is used (45.4 degrees C), compared to a thin cement mantle (32.7 degrees C). To reduce the potential for thermal necrosis, the thin cement mantle technique is recommended.
authors: Nuffield Department of Orthopaedic Surgery, University of Oxford, Nuffield Orthopaedic Centre, Oxford, UK.
authors: J Paige
authors: JP
authors: Little
authors: Hans A
authors: HA
authors: Gray
authors: David W
authors: DW
authors: Murray
authors: David J
authors: DJ
authors: Beard
authors: Harinderjit Singh
authors: HS
authors: Gill
mesh_terms: D000077:Acetabulum; D019644:Arthroplasty, Replacement, Hip; D001843:Bone Cements; D005270:Femur Head; D006358:Hot Temperature / Q000009:adverse effects; D006801:Humans; D066298:In Vitro Techniques
chemical_list: D001843:Bone Cements