ABSTRACT
The time to insertion of the femoral component into a cemented medullary cavity during total hip arthroplasty was reviewed. A survey of current practice among a group of surgeons was undertaken, and reproducible model of femoral cement penetration was developed. Under standard conditions, this showed maximum penetration of Vacu-Mix Plus CMW1 gentamicin cement (DePuy, Leeds, UK) at 3 minutes.
Subject(s)
Arthroplasty, Replacement, Hip/methods , Femur/surgery , Hip Prosthesis , Arthroplasty, Replacement, Hip/instrumentation , Cementation , Humans , Pressure , Surveys and Questionnaires , Time FactorsABSTRACT
We present a case of superior dislocation of the patella trapped by interlocked osteophytes. Unlike previous reports, in which the mechanism resulted from a blow to the inferior pole, it is postulated that increased load on the extensor mechanism, combined with patella alta and patellofemoral osteophytes, caused locking of the knee in extension.
Subject(s)
Joint Dislocations/diagnostic imaging , Joint Dislocations/etiology , Joint Loose Bodies/complications , Joint Loose Bodies/diagnostic imaging , Patella/injuries , Range of Motion, Articular , Accidents, Occupational , Adult , Humans , Joint Dislocations/physiopathology , Joint Dislocations/surgery , Joint Loose Bodies/physiopathology , Joint Loose Bodies/surgery , Lifting/adverse effects , Male , Manipulation, Orthopedic , Radiography , Weight-BearingABSTRACT
After total knee replacement a 57-year-old woman developed increasing pain in her left calf on exercise. This was due to erosion of the popliteal artery by a spur of cement. Removal of the spur with resection and Dacron grafting of the damaged section of the vessel cured her symptoms.
