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. 2020 Jun 30:20:338-341.
doi: 10.1016/j.jor.2020.05.009. eCollection 2020 Jul-Aug.

Cartiva case series: The efficacy of the cartiva synthetic cartilage implant interpositional arthroplasty at one year

Bernardo Brandao  1 , Ahmed Aljawadi  2 , Angus Hall  2 , Anna Fox  2 , Anand Pillai  2
Affiliations

Cartiva case series: The efficacy of the cartiva synthetic cartilage implant interpositional arthroplasty at one year

Bernardo Brandao et al. J Orthop. .

Abstract

Background: The Cartiva synthetic cartilage implant (SCI) is licenced for use in management of symptomatic hallux rigidus in several countries including the UK. As of now, there are no independent series for treatment of hallux rigidus utilising polyvinyl alcohol implants.

Methods: Patients at a single centre with symptomatic hallux rigidus who underwent Cartiva implant interpositional arthroplasty were identified. First metatarsophalangeal joint arthritis was radiographically graded according to the Hattrup and Johnson (HJ) classification. Pre-operative and post-operative patient-reported outcomes (PROMs) were evaluated using the Foot and Ankle Ability Measure (FAAM) activities of daily living subscale and the Manchester-Oxford Foot Questionnaire (MOXFQ).

Results: 55 patients (14M, 41F) (37R and 18L) were followed up for an average of 21 months (min = 12, max = 38). 14 patients suffered from HJ2/moderate arthritis and 41 patients with grade HJ3/severe arthritis.Post-operative mean FAAM scores showed statistically significant improvement (p < 0.0001). Patients reported a 40% increase in functionality during activities of daily living.All 3 MOXFQ Domain scores improved significantly (p < 0.02). The Index score improved by 34 points (p < 0.0001).There was no correlation between length of follow up or age and PROMs (r = 0.129). No statistical difference was demonstrated between sexes. Clinically, however, males and older patients exhibited better outcomes.

Conclusions: Our study shows excellent results with statistically significant improvements in functional outcomes, and promising short-term follow-up with low early revision rates. Durability and survivability of the implant will continue to be studied in this cohort.

Keywords: Arthritis; Cartiva; Hallux rigidus; PROMs; Synthetic cartilage implant.

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Conflict of interest statement

None of the authors have conflicts of interest to disclose.

Figures

Fig. 1
Fig. 1
Manchester Foot and Ankle Questionnaire (MOXFQ) scores.
Fig. 2
Fig. 2
Kaplan-meier survival plot.
See this image and copyright information in PMC

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