Objective: To compare the clinical, radiographic and medium-term follow-up results from two fixation methods for the tibial component in revision procedures on total knee prostheses: cemented (tray and stem) and hybrid (cemented tray and uncemented, nonporous canal-filling stem). Methods: Between August 1999 and November 2005, 30 revision procedures on total knee arthroplasties were performed on 26 patients, who were divided between group I (cemented fixation; 21 knees) and group II (hybrid fixation; nine knees). The mean follow-up was 52 months and no patients were lost from the follow up. Results: No differences in the scores from the WOMAC and Knee Society questionnaires were observed between the two groups. One patient in group I presented radiographic signs of loosening. Two patients (one in each group) complained of pain in the diaphyseal region, compatible with the location of the stem tip. The pedestal radiographic sign was observed in 89% of the knees with uncemented stems and in none of the cemented group. Conclusion: The comparative analysis between the two methods did not show any differences regarding clinical and radiographic parameters, or arthroplasty survival.
ObjectiveTo report a series of cases of patients treated by fracture of the femoral head through the Ganz pathway with controlled dislocation of the hip.MethodAll patients who were surgically treated with a Ganz access route for femoral head fractures were identified in a tertiary referral service for trauma. A review of medical records with X-rays and CT scans was carried out. The radiographic evaluation was classified according to Pipkin and the functional evaluation was performed through the application of the modified Harris Hip Score. Data regarding the quality of reduction, type of fixation, and postoperative complications were collected.ResultsThe sample consisted of three men and one woman, with a mean age of 30 years (20–51). Regarding Pipkin's classification, two cases were type I, one type II, and one type IV. Regarding the Harris Hip Score, an average of 65.75 points was obtained (range: 20–86). All cases had anatomical reduction in the intraoperative period. One case presented post-traumatic sciatic nerve praxis and evolved with infection at the surgical site.ConclusionSurgical treatment of femoral head fractures through controlled hip dislocation is a viable option and can be considered an alternative to classical approaches.
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