Failed hip replacements.
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Hip Prosthesis↗
Biomedical subjects
A J Timperley
Publications and source records attributed to A J Timperley.
Aseptic loosening of the femoral component in cemented total hip replacement.
The purpose of this study was to identify factors which predispose to aseptic loosening of the femoral component in cemented total hip replacement. Its design was based on rigid selection criteria, so that successful and loose replacements which employed the same surgical technique were compared. Measurements of patient anatomy and of the insertion of the femoral component were made, by an accurate computer technique, on initial post-operative radiographs. Loosening was associated with heavier patients with a wider medullary canal which was flared proximally. This difference in anatomy led to differing distributions of cement in the successful and loose replacements. Medial cement-bone demarcation, at the mid-stem level, was also associated with loosening. These findings indicate the importance of optimizing the size of the prosthesis with respect to the femoral morphology.
Bone Cements↗
Cardiac arrest following the use of hydrogen peroxide during arthroplasty.
A case is reported in which cardiac arrest immediately followed the use of hydrogen peroxide during preparation of the femoral canal during hip arthroplasty. The most likely cause of the arrest was thought to be oxygen embolism. The authors suggest that the use of peroxide in an unvented femoral canal may be hazardous, as it has been shown to be in other closed cavities in the body.
Female↗
Surfasoft, a new graft dressing.
We present our preliminary experience using Surfasoft, a new dressing material, in the management of burns following skin grafting. It was found to be a useful dressing in awkward sites where conventional dressings have many disadvantages.
Adolescent↗