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Review paper

High results and lower cost in four-bone arthrodesis with retrograde screws

By
Dariush Ghargozloo ,
Dariush Ghargozloo

Department of Orthopaedic and Traumatology, “Esine Hospital”, Valcamonica, Valcamonica, Italy

Alessandro Tomarchio Orcid logo ,
Alessandro Tomarchio
Contact Alessandro Tomarchio

Department of Surgery, Orthopaedic and Trauma Unit, "S. Croce e Carle" Hospital , Cuneo, Italy

Mauro Ballerini ,
Mauro Ballerini

Department of Orthopaedic and Traumatology, “Esine Hospital”, Valcamonica, Valcamonica, Italy

Emanuela Saccalani ,
Emanuela Saccalani

Department of Orthopaedic and Traumatology, “Esine Hospital”, Valcamonica, Valcamonica, Italy

Giorgio Grazioli ,
Giorgio Grazioli

Department of Orthopaedic and Traumatology, “Esine Hospital”, Valcamonica, Valcamonica, Italy

Gianpaolo Chitoni
Gianpaolo Chitoni

Department of Orthopaedic and Traumatology, “Esine Hospital”, Valcamonica, Valcamonica, Italy

Abstract

Aim
To describe the technique of the four-corner fusion with two retrograde crossed headless screws in cases of carpal collapse.
Methods
This technique is a consolidated procedure performed in cases of scaphoid non- union advanced collapse (SNAC) type
II and III, scapholunate advanced collapse (SLAC) type II and III and in other cases of carpal collapse. Between 2017 and 2019 we treated six male patients (a mean age of 55.0 years) with radiocarpal osteoarthritis. Our technique involves the use of two retrograde crossed headless screws; the first screw was placed distally proximally from the uncinate to the lunate and the second screw from the pyramidal to the capitate, crossed at approximately 90 degrees. Clinical and radiographic two-year follow-up was performed. Before the treatment and during the follow-ups VAS, PRWE
and DASH Quick score scales, measured wrist range of motion (WROM) were administered and evaluated.
Results
In all cases the X-ray consolidation of arthrodesis within five months was noticed; in 50% patients already under 3-month
control. No observed signs of mobilization of screws and inflammatory or infectious processes were found. All patients were satisfied (reduction/disappearance of pain). All surgically treated patients resumed normal daily activities. These improvements were confirmed by the results of the evaluation scale and clinical examination.
Conclusion
This technique, in our opinion, represents a gold standard. Its low costs of the material used (especially comparing to
other technique), a low prevalence of complications of materials and fusion in 100% of cases should be also considered.

References

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