Comparison of Customized and Standard Total Ankle Prostheses
Comparison of Customized and Standard Total Ankle Prostheses: a Pilot Study
Istituto Ortopedico Rizzoli
24 participants
Jul 26, 2023
INTERVENTIONAL
Conditions
Summary
The objective of this study is to compare primary total ankle replacement (TAR) performed with a customized procedure (prostheses customized for each patient based on his or her ankle morphology reconstructed from tomographic scans, and implanted via cutting guides customized for the patient) with standard primary TARs, considering: objective radiological results, subjective patient outcomes, and overall costs of both procedures
Eligibility
Inclusion Criteria3
- Male and female subjects older than 40 years and younger than 75 years (≥ 40 age ≤ 75 years) with arthrosis at the unilateral tibio-tarsal joint who are candidates for primary total ankle replacement.
- Consenting patients and able to complete scheduled study procedures and follow-up evaluations.
- Patients who have signed the "informed consent" approved by the Ethics Committee.
Exclusion Criteria12
- Social conditions (homeless patients, with restrictions on personal freedom)
- ASA 3 and 4
- Deep venous insufficiency Lower limbs
- History of Erisipelas lower limbs
- Neurological or psychocognitive disorders
- neurological diseases
- Axial deformities of ankle >15°
- Personal or family history of DVT or EP
- Prosthetic and/or arthrodesis surgeries at another lower extremity joint except that candidate for ankle prosthesis)
- Pregnant women
- Patients with rheumatic diseases
- Patients that requires ancillary surgical procedures
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Interventions
Patients who underwent ankle prosthesis implantation procedure with an anterior approach were involved in a longitudinal skin incision of about 12-15cm anterior to the tibio-tarsal joint in supine position. Once the deep layers were reached, passing through the anterior tibial tendon and extensor hallucis longus tendon sheath, the tibio-tarsal joint was then exposed. The operator proceeds to astragalic and tibial resections, once the appropriate size of implants was selected, the final components were implanted. In both groups, the basic prosthetic design approach will be 'three-component,' that is, with congruent mobile meniscus interposed between the tibial and astragalic components. At the end of the procedure, orthopedic walker boot was placed for 3 weeks, and progressive weight allowed.
Locations(1)
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NCT06193057