BEHAVIOR OF ORTHOPAEDIC CEMENT (CMWG) IN TOTALHIP REPIACEMENT.
The behavior of two types of Onhopaedic Cement with Gentamicin have been analized, CMW 1-G for digital application and CMW3-G for insenion with a cement gunsyringe, according with a prestablished protocol, it has been selected and evaluated a group of 37 patientes submited either for a total hip replacement ( Primary or Revision) or a total knee replacement, between December 1995 and September 1996.
lntraoperative chracteristics of cement were qualified in agreement with a cementation protocol, comparing
them with those mentioned by the manufacter. In the same way, the results were clinically and roentgenographically analized within the postoperative period with a minimun follow-up of three months.
63 mixtures with CMW 1-G were perfonned, of these 98,5% (62 doses) have shown a behavior qualified as «very good» and 1,5% ( 1 dose) was considered to be «good». Probably, because of a failure in the mixing procedure ora defect in conservation of the product.
Ali mixtures with CMW3-G, used only in cases of femoral stem revision, were rated «very good». Radiologically, 29 (93,6%) cases ofhip replacement did not show demarcation until the last control, 6,4% (2 cases) presented a non progressive demal'Cation line in the femoral side inmediately after surgery probably as a consecuence of a surgical failure.
Non of the total knee replacements evaluated in this series presented radiological demarcation images. Clinically, there were not complications or adverse effects caused by the cement.
We conclude that both cements are optimwn to be used in joint replacement surgery and these satisfy the producer specifications.
Resides, of the main characteristics and quality of cement and prosthetic design, it is very imponant to prepare an adequate receptive bone bed, a proper pressurization of the PMMA must be obtained anda correct surgical technique performed to give the patient long lasting results. In addition, rigth selection of patients anda suitable surgical indication play a relevant role in the final results.
Finally, in order to achieve these objectives it is essential a well trained surgical team f amiliarized with the technique and capable to sort out complications that may arise.
Summarizing, all results obtained positivelly match with those published by the intemational medical literature.
Manzoni Garrón, G., Montes Montes, C. ., & Numair Vivanco, J. . (1997). Comportamiento del cemento ortopédico cmw-g en reemplazo total de articulaciones de carga. Revista Hospital Clínico Universidad De Chile, 8(1), pp. 15–24. https://doi.org/10.5354/2735-7996.1997.81465
