Scarf osteotomy combined with soft tissue balance release for severe hallux valgus / 中国骨伤

OBJECTIVE@#To explore clinical effect of Scarf osteotomy combined with soft tissue balance in treating severe hallux valgus.@*METHODS@#Totally 38 patients(50 feet) with severe hallux valux who underwent Scarf osteotomy combined with soft tissue balance surgery from June 2019 to June 2021 were retrospectively analyzed, aged from 29 to 64 years old with an average of(54.7±6.8) years old; 26 feet on the left side and 24 feet on the right side;the courses of disease ranged from 5 to 23 years with an average of (12.4±3.9) years. Hallux valgus angle (HVA), intermetatarsal angle (IMA), and distal metatarsal articular angle (DMAA) were compared before and after operation, and postoperative complications was observed. American orthopedic foot ankle society(AOFAS) score before operation and final follow-up was used to evaluate recovery of forefoot function, and visual analogue scale (VAS) was used to evaluate pain relief.@*RESULTS@#Thirty-eight patients (50 feet) were followed up from 15 to 23 months with an average of (18.3±3.2) months. Preoperative HVA, IMA and DMAA were (44.61±3.92)°, (18.74±2.51)°, (12.85±2.11)°, and improved to (13.45±2.13)°, (7.83±1.36)°, (7.03±1.39)°at final follow-up, which had statistical differneces(P<0.05). No delayed union or nonunion of osteotomy end, fracture or loosening of internal fixation, hallux varus occurred. VAS and AOFAS score improved from (6.81±2.14), (43.6±8.4)points before operation to (1.97±0.78), (87.6±5.2) points at final follow-up, which had statistical difference(P<0.01). According to AOFAS at final follow-up, 20 feet got excellent result, 28 feet good and 2 feet moderate.@*CONCLUSION@#Scarf osteotomy combined with soft tissue balance release for severe hallux valgus has good stability and corrective effect, but learning curve and postoperative complications should be paid attention.

Investigation on biologically characterst of wild species and herbal quality of Changium smyrnioides / 中国中药杂志

<p><b>OBJECTIVE</b>To investigate the species resources of Changium smyrnioides.</p><p><b>METHOD</b>Nine habitat populations of C. smyrnioides, included with population environment, time limit, morphological characters and so on were investigated. The phylogenetic relationship of different habitat populations of C. smyrnioides was studied by isoenzyme electrophoretic analysis of the EST.</p><p><b>RESULT</b>The results showed that wild resources of C. smyrnioides were endangered. Seed germinating rate of cultivated plant was significantly higher than that of wild seed, but polysaccharide content in the root of wild species was significantly higher than that of cultivated plant. There existed a geographic phylogenetic relationship among different habitat populations.</p><p><b>CONCLUSION</b>The wild C. smyrnioides resources are endangered. The wild C. smyrnioides around Nanjing city are better than the others, it could be used for the further selecting of species resources.</p>

Effect of seedling and fertilizering on yield and quality of cultivated Changium smyrnioides / 中国中药杂志

<p><b>OBJECTIVE</b>To study the effects of seedling and fertilizer on yield and quality of cultivated Changium smyrnioides and build a basis for its GAP.</p><p><b>METHOD</b>Experiments were conducted to study the effects of seedling quality and different fertilizering measures on yield and quality of cultivated C. smyrnioides.</p><p><b>RESULT</b>The seedling and fertilizering depth affected the yield of roots obviously. Organic fertilizer combined with nitrogen and phosphorus could increase the amylose content obviously.</p><p><b>CONCLUSION</b>In cultivation, the seedling (root length > 5.0 cm, root diameter > 0.3 cm, fresh root weight > 0.3 g) is optimal. The ideal combination is nitrogen, phosphorus and organic fertilizer. The suggested fertilizering depth ranged from 10 to 15 cm.</p>

Study on seed quality test and quality standard of Changium smyrnioides / 中国中药杂志

<p><b>OBJECTIVE</b>To study seed quality test methods, and provide basis for establishing seed quality standard of Changium smyrnioides.</p><p><b>METHOD</b>According to the seed testing regulations, the seed quality of C. smyrnioides from different producing area and in different growing years was measured.</p><p><b>RESULT AND CONCLUSION</b>The range of seed purity, weight per 1000 seeds, seed moisture content, seed viability were determined and the primary seed quality classification standard was established.</p>

Study on seed dormancy mechanisms of Changium smyrnioides and its geminating conditions / 中国中药杂志

<p><b>OBJECTIVE</b>To study the seed dormancy mechanisms and the optimal seed germinating conditions, so as to provide basis for the seed testing of Changium smyrnioides.</p><p><b>METHOD</b>Put the seeds into wettish sand under temperature of 25, 20, 15, 10, 5 degrees C, observe the shape changing of embryo and measure its length every other 10 days. Carry on experiments of seed germination under temperature of 25,20, 15, 10, 5 degrees C on the paper bed and sand bed, determine the time of germination starting, time of germination lasting, germination rate and germination energy.</p><p><b>RESULT</b>Embryo grew the most quickly under 15 degrees C. The seed germination was largely prohibited when the temperature is higher than 20 degrees C. The mildew rate was very high under 25, 20, 15, 10 degrees C. Put the seeds under 5 degrees C for 45 days could quickly break off its dormancy, and its mildew rate was lower. The seeds germinate fastest under the condition of 15-10 degrees C on the paper bed, and its germination rate was the highest.</p><p><b>CONCLUSION</b>The morphological post-maturation seems the major dormancy mechanism of C. smyrnioides. Temperature is a major factor that affect seed germination of C. smymioides. The best pretreatment method is to put the seeds into 5 degrees C of wettish sand for 45 days. The best germination bed is the paper bed, and the best germination temperature is 15-10 degrees C.</p>