Densitometric evaluation might prevent failure of knee artroplasty for aseptic loosening: An 8-year observational controlled study

Authors

• Gianantonio Saviola, From the Rheumatology and Rehabilitation Unit (Saviola, Abdi-Ali), Laboratory and Clinical Biochemistry Unit (Sacco), Salvatore Maugeri Foundation IRCCS, Castel Goffredo, Mantua, the Orthopedic Rehabilitation Unit (Zaghini, Ferlini), Casa Di Cura Eremo, Arco, Trento, and Rheumatology Unit (Rossini), University of Verona, Verona, Italy
• Irene Zaghini, From the Rheumatology and Rehabilitation Unit (Saviola, Abdi-Ali), Laboratory and Clinical Biochemistry Unit (Sacco), Salvatore Maugeri Foundation IRCCS, Castel Goffredo, Mantua, the Orthopedic Rehabilitation Unit (Zaghini, Ferlini), Casa Di Cura Eremo, Arco, Trento, and Rheumatology Unit (Rossini), University of Verona, Verona, Italy
• Lul Abdi-Ali, From the Rheumatology and Rehabilitation Unit (Saviola, Abdi-Ali), Laboratory and Clinical Biochemistry Unit (Sacco), Salvatore Maugeri Foundation IRCCS, Castel Goffredo, Mantua, the Orthopedic Rehabilitation Unit (Zaghini, Ferlini), Casa Di Cura Eremo, Arco, Trento, and Rheumatology Unit (Rossini), University of Verona, Verona, Italy
• Gregorio Ferlini, From the Rheumatology and Rehabilitation Unit (Saviola, Abdi-Ali), Laboratory and Clinical Biochemistry Unit (Sacco), Salvatore Maugeri Foundation IRCCS, Castel Goffredo, Mantua, the Orthopedic Rehabilitation Unit (Zaghini, Ferlini), Casa Di Cura Eremo, Arco, Trento, and Rheumatology Unit (Rossini), University of Verona, Verona, Italy
• Silvano Sacco, From the Rheumatology and Rehabilitation Unit (Saviola, Abdi-Ali), Laboratory and Clinical Biochemistry Unit (Sacco), Salvatore Maugeri Foundation IRCCS, Castel Goffredo, Mantua, the Orthopedic Rehabilitation Unit (Zaghini, Ferlini), Casa Di Cura Eremo, Arco, Trento, and Rheumatology Unit (Rossini), University of Verona, Verona, Italy
• Maurizio Rossini, From the Rheumatology and Rehabilitation Unit (Saviola, Abdi-Ali), Laboratory and Clinical Biochemistry Unit (Sacco), Salvatore Maugeri Foundation IRCCS, Castel Goffredo, Mantua, the Orthopedic Rehabilitation Unit (Zaghini, Ferlini), Casa Di Cura Eremo, Arco, Trento, and Rheumatology Unit (Rossini), University of Verona, Verona, Italy

Abstract

Objectives: To study the correlation between quantitative ultrasound (QUS) expressed as stiffness index (SI) and the risk of aseptic loosening of knee arthroplasty. Methods: An observational retrospective controlled study was performed on 85 female patients (mean age: 73.3 years) divided into 2 groups from January 2007 to March 2015 and carried out at the Orthopedic Rehabilitation Unit, Casa di Cura Eremo, Arco, Trento, Italy. Group A included 42 patients who had undergone a revision of knee prosthesis for aseptic-loosening, and group B included 43 age-matched patients who underwent primary replacement of the knee without following aseptic loosening. Patients in both groups were evaluated for SI with Achilles - QUS system at the same side of the surgery. Results: In group A, 20/42 patients (47.6%) had an SI T-score below -2.5. In group B, 14/43 (32.5%) patients had a SI T-score below -2.5. The difference between the 2 groups was statistically significant ( p =0.015). Conclusion: Stiffness index appears to be an important predictor of aseptic loosening of the knee prosthesis. Therefore, densitometric evaluation, including SI, may be recommended before surgical knee replacement.

Article Type

Brief Report

First Page

212

Last Page

214

Recommended Citation

Saviola, Gianantonio; Zaghini, Irene; Abdi-Ali, Lul; Ferlini, Gregorio; Sacco, Silvano; and Rossini, Maurizio (2016) "Densitometric evaluation might prevent failure of knee artroplasty for aseptic loosening: An 8-year observational controlled study," Saudi Medical Journal: Vol. 37: Iss. 2, Article 17.
DOI: https://doi.org/10.15537/smj.2016.2.12724