Cartilage graft from rib to treat trapeziometacarpal arthritis.

Trapeziectomy has been considered as the gold standard for treating trapeziometacarpal arthritis. But trapezial space collapse is responsible for thumb strength decrease and intracarpal deformities (with or without tendon interposition). Partial trapeziectomy with interposition of a chondrocostal autograft combines the advantages of trapeziectomy and a biological spacer without the disadvantages of arthroplasty. Partial trapeziectomy is performed by a dorsal approach, under regional anaesthesia. The graft is harvested by a direct approach of the 9th rib during a short bout of general anaesthesia and inserted in the trapeziectomy space. A thumb spica cast is used for 3-6 weeks. In our experience, long-term outcomes and radiological evolution of the graft are good, similar to that of other procedures reported in the literature, except for strength, which is better in this scenario. With more than 5 years of follow-up, the graft is viable, the length of the thumb is maintained, and any areas of graft metaplasia are localized. The result is stable over time and any donor site morbidity is anecdotal. The interposition of a biological material is feasible and produces a stable and strong thumb.

Long term functional outcomes after minimally invasive surgical decompression in upper limb chronic exertional compartment syndrome in 30 patients.

Chronic exertional compartment syndrome (CECS) of the upper limbs is less well known than its equivalent in the lower limbs, thus its diagnosis is often delayed. Our goals were to evaluate the impact of CECS on activities of daily living and work-related activities and to report the functional outcomes after minimally invasive fasciotomy. This was a retrospective study of patients with CECS of the upper limb who were operated at two hospitals between 2008 and 2019. Thirty patients were reviewed an average of 5 years after minimally invasive fasciotomy: 26 had CECS of the forearm, 3 of the thenar compartment and 1 of the first interosseous compartment. For the evaluation, patients were asked to assess their pain on a visual analog scale (VAS), complete the QuickDASH questionnaire and rate their satisfaction with the outcome. Preoperative pain on the VAS was 7.45/10 with a negative impact on activities of daily living in 97% of patients, and on work-related activities in 77% of patients with 17% requiring a career change. The mean time to surgical treatment was 5 years. The mean QuickDASH at the final assessment was 6.0 (0-31.8) with a significant decrease in pain on VAS of 1.9/10 (p < 0.01). Seventy-seven percent of patients had very good results while 13% had good results. Full healing was achieved in 63% of patients and physical performance improved in 50%. Seventy-seven percent of patients were either satisfied or very satisfied with the outcome. One patient had a recurrence requiring surgical revision. CECS affects athletes of all levels and impacts both activities of daily living and work-related activities. We need to greatly expand our education and prevention efforts for CECS. Mini-open fasciotomy yields good results.

Functionalized nerve conduits for peripheral nerve regeneration: A literature review.

Functionalized neurotube are a third-generation of conduits with chemical or architectural bioactivity developed for axonal proliferation. The goal of this review is to provide a synopsis of the functionalized nerve conduits described in the literature according to their chemical and architectural properties and answer two questions: what are their mechanisms of action? Has their efficacy been proven compared to the autologous nerve graft? Our literature review relates all kind of conduits corresponding to functionalized neurotubes in peripheral nerve regeneration found in Medline and PubMed Central. Studies developing nerve gaps, chemotactic or structural features promoting each conduit, results, efficiency were selected. Fifty-five studies were selected and classified in: (a) intraluminal neurotrophic factors; (b) cell-based therapy (combined-in-vein muscles, amniotic membrane, Schwann cells, stem cells); (c) extracellular matrix proteins; (d) tissue engineering; (e) bioimplants. Functionalized neurotubes showed significantly better functional results than after end-to-end nerve suture. No studies can be able to show that neurotube results were better than autologous nerve graft results. We included all studies regardless of effectives to evaluate quality of reinnervation with modern tubulization. Functionalized neurotubes promote basic conduits for peripheral nerve regeneration. Thanks to bioengineering and microsurgery improvement, further neurotubes could promote best level of regeneration and functional recovery to successfully bridge a critical nerve gap.