Details

Autor(en) / Beteiligte

• Barrera-Ochoa, Sergi, MD
• Vidal-Tarrason, Nuria, MD
• Correa-Vázquez, Eva, MD
• Reverte-Vinaixa, Maria Mercè, MD
• Font-Segura, Jordi, MD
• Mir-Bullo, Xavier, PhD

Titel

Pyrocarbon Interposition (PyroDisk) Implant for Trapeziometacarpal Osteoarthritis: Minimum 5-Year Follow-Up

Ist Teil von

• The Journal of hand surgery (American ed.), 2014-11, Vol.39 (11), p.2150-2160

Ort / Verlag

United States: Elsevier Inc

Erscheinungsjahr

2014

Quelle

MEDLINE

Beschreibungen/Notizen

• Purpose To report outcomes after a minimum of 5 years following pyrocarbon interposition (PyroDisk) trapeziometacarpal joint implant for osteoarthritis at a single center. Methods We retrospectively reviewed the midterm clinical and radiological outcomes of 19 patients who had a pyrocarbon interposition implant (PyroDisk; Integra Life Sciences, Plainsboro, NJ) arthroplasty. The rate and causes of repeat surgeries, revisions, and complications were examined. Results The mean follow-up period was 68 months. Patient satisfaction was high. The mobility of the operated thumb was restored to a range of motion comparable with that of the contralateral thumb. Grip strength improved by 26%. Overall function, according to the Quick Disabilities of the Arm, Shoulder, and Hand score, showed an average improvement of 71 to 20. Pain decreased by 78% according to the numerical rating scale. Radiological evaluation using a modification of the system described by Herren revealed progression of the periprosthetic lucency (grade I–II) of the implant after 5 years in 5 of 19 (26%) patients. Progression of lucency did not predict implant loosening or failure at 5 years. Two patients had symptomatic instability that required revision. No dislocations occurred. The 5-year survival of the prosthesis was 90%. Conclusions The PyroDisk implant for treating advanced trapeziometacarpal arthritis did not demonstrate superiority over published outcome data of trapeziectomy with or without ligament reconstruction and tendon interposition. Type of study/level of evidence Therapeutic IV.