Lancaster cortical window technique was Safe for extraction
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The removal of a femoral stem during revision hip arthroplasty is a difficult procedure that can result in serious complications for the patient. Intraoperatively, a sound technique aids in the patient's quick recovery and lowers the chance of potential surgical procedures. A medium-term outcome of the novel Lancaster cortical window technique, which can be used to remove cemented or uncemented femoral stems, was presented in this report.

This was a retrospective case series where patients were treated surgically using the Lancaster cortical window technique for removal of the femoral implant during a revision hip arthroplasty. Patient’s electronic notes and radiographs were used to evaluate the functional and radiological outcome.

Results:
--18 patients were managed surgically using the novel Lancaster window technique. The mean age of all the patients was 81.5 years, and the male to female ratio was 10:8.

--15 patients underwent revision surgery for aseptic loosening of the femoral and acetabular components.

--The rest of the 3 patients had revision surgery for a broken femoral stem, intraoperative femoral canal perforation while implanting a total hip replacement femoral stem and infection.

--12 femurs were replanted with uncemented long femoral stems and 6 with long cemented stems.

--The cortical window osteotomy united in all the patients in 4.2 months (mean). The mean follow-up of these patients is 20.9 months, and none of them had any implant subsidence or loosening at the time of their last follow-up.

Conclusively, it was believed that Lancaster cortical window technique can be safely used for the removal of cemented stems during revision hip arthroplasty without the need for expensive equipment.

Source: https://josr-online.biomedcentral.com/articles/10.1186/s13018-021-02458-7
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