Arthroscopic treatment of septic arthritis of the ankle joint caused by streptococcus in patients with chronic inflammatory diseases: two case reports.

This report describes the arthroscopic treatment of septic arthritis of the ankle joint in two patients with inflammatory diseases, including rheumatoid arthritis (RA) and nail psoriasis. We treated both the ankle joints with antibiotic administration and urgent arthroscopic synovectomy and irrigation, although the procedure was performed several days (4 and 6 days) after the time at which the infection would have occurred. Fortunately, no recurrence has been seen for more than 18 and 20 months, respectively, after surgery, without antibiotic administration.

Flatfoot Surgery for Flexible Progressive Collapsing Foot Deformity With Inflammatory Joint Diseases: A Report of 3 Cases.

Case: Three cases of inflammatory joint diseases (systemic lupus erythematosus and ongoing juvenile idiopathic arthritis) with painful flexible progressive collapsing foot deformity (PCFD) underwent flatfoot surgery. All cases maintained sufficient radiological correction and achieved good clinical condition at final follow-up.

Conclusion: Although the prospect for recurrence of the deformity is not clear, even in inflammatory joint diseases, flat foot surgery such as flexor digitorum longs transfer, spring ligament reconstruction, and lateral column lengthening could have a possibility to be indicated against PCFD, as long as disease activity could be well suppressed by drug therapy, subsequently subtalar and talonavicular joints could be preserved.

Cyclic compressive loading induces a mature meniscal cell phenotype in mesenchymal stem cells with an atelocollagen-based scaffold.

Biomechanical stimulation is reportedly pivotal in meniscal regeneration, although its effect on mesenchymal stem cell (MSC) meniscal differentiation remains elusive. In this study, we investigated how cyclic compressive loading (CCL) could impact MSCs using three-dimensional cultures in atelocollagen-based meniscal substitute (ACMS). We extracted MSCs from the meniscus, synovium, and articular cartilage, cultured them in three-dimensional cultures, and exposed them to CCL for 7 days.

Stabilizing effect of total ankle arthroplasty by distal translation and lateralization of talus in varus ankle deformity.

Background: In end-stage arthritis indicated for total ankle arthroplasty (TAA), full-thickness cartilage damage, subchondral bone defect/shaving, and fluttering of the talar dome occur, shortening the distance between the tibial and talar insertions of ligaments and leading to laxity of ligaments surrounding the ankle joint. Under such conditions, medial ligaments (including the deltoid ligament) would not be expected to function properly. To stabilize the ankle joint during the stance phase, medial ligament function under tension is important.