The disputes involved different Zimmer products — in one case, a knee, and in the other case, a hip device component.
This could relate to treatment that already had been performed, in this case a hip replacement.
Finally, a multi-variable problem considering several daily loading cases on a hip prosthesis shows the applicability of the proposed strategy.
In severe cases, a total hip arthroplasty (THA) is mandated.
Overall, 138 (34%) of the patients were treated with a prosthesis and 263 (66%) with a osteosynthesis (in 125 (31%) cases a dynamic hip screw was used, in 104 (26%) cases an intramedullary nail and in 34 (8%) cases cannulated screws).
Total hip BMD was measured at the left femur, while in case of a hip prosthesis at the left side, the right side was measured.
Each hip was then assigned an overall grade for OA as described by Kellgren and Lawrence (1957), and any case with a hip with grade-I disease (doubtful osteoarthritis) or more was excluded.
This would keep the patient protected in the case of a hip arthroplasty but would only partly solve the problem for knee arthroplasty, as the use of a tourniquet is standard today.
Treatment usually consists of surgery to insert a bone plate or, in some cases, to perform a hip replacement.
Only 9 cases of infection caused by M. wolinskyi have been reported (1 – 3 ), and these included 3 cases of bone infection and 1 case of infection of a hip prosthesis.
