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The genetic placebo effect comprises the gene-related psychological, physiological and behavioral changes resulting from merely receiving genetic information. Our research investigated the genetic placebo effect on psychological resilience when taking the impact of genes into consideration and investigating the moderating effect of self-compassion on the genetic placebo effect. In experiment 1, participants' psychological resilience was measured before (or after) receiving genetic feedback about psychological resilience. We observed a weak genetic placebo effect independent of the impact of genes, as indexed by higher correlation between the genetic score and psychological resilience score in the after-feedback group. Self-compassion moderated the genetic placebo effect, and participants with higher self-compassion were more sensitive to genetic feedback. These findings were replicated in experiment 2, in which we randomly gave genetic feedback to participants, reporting genetic predispositions of high or low psychological resilience. Our research offers insight into the use of genetic testing and feedback., Author(s): Huixin Tan [sup.1] , Tianwu Li [sup.1] , Liqin Huang [sup.1] , Qin Duan [sup.1] , Leyi Fan [sup.1] , Meihua Yu [sup.1] , Jiahui Wang [sup.1] , Gese [...]

We report our experience with correction of radially deviated Wassel type III thumb polydactyly. After comprehensive assessments from preoperative radiographs, physical examinations and intraoperative reports, we corrected the metacarpophalangeal joint in 34 cases of radially deviated Wassel type III thumb polydactyly. Opening-wedge osteotomies combining bone graft and soft tissue reconstruction were used in 28 cases and soft tissue reconstruction only in six cases. Absorbable sutures were used instead of traditional Kirschner (K)-wires to fix the bone grafts. Patients were followed up for 12-78 months (mean 47 months). According to the Tada scoring system, 25 patients achieved good results, seven fair results and two poor results. Our modified technique for correcting radially deviated Wassel type III thumb polydactyly yielded satisfactory results. Continued follow-up and further studies will contribute to a better understanding of the long-term efficacy and potential refinements of this technique. Level of evidence: IV., Competing Interests: Declaration of conflicting interestsThe authors declare no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.

Objective: To investigate the effectiveness of autologous nano-fat mixed granule fat transplantation in the treatment of facial soft tissue dysplasia in children with mild hemifacial microsomia (HFM)., Methods: A total of 24 children with Pruzansky-Kaban type Ⅰ HFM were admitted between July 2016 and December 2020. Among them, 12 children were treated with autologous nano-fat mixed granule fat (1∶1) transplantation as study group and 12 with autologous granule fat transplantation as control group. There was no significant difference in gender, age, and affected side between groups ( P >0.05). The child's face was divided into region Ⅰ(mental point-mandibular angle-oral angle), region Ⅱ (mandibular angle-earlobe-lateral border of the nasal alar-oral angle), region Ⅲ (earlobe-lateral border of the nasal alar-inner canthus-foot of ear wheel). Based on the preoperative maxillofacial CT scan+three-dimensional reconstruction data, the differences of soft tissue volume between the healthy and affected sides in the 3 regions were calculated by Mimics software to determine the amount of autologous fat extraction or grafting. The distances between mandibular angle and oral angle (mandibular angle-oral angle), between mandibular angle and outer canthus (mandibular angle-outer canthus), and between earlobe and lateral border of the nasal alar (earlobe-lateral border of the nasal alar), and the soft tissue volumes in regions Ⅰ, Ⅱ, and Ⅲ of healthy and affected sides were measured at 1 day before operation and 1 year after operation. The differences between healthy and affected sides of the above indicators were calculated as the evaluation indexes for statistical analysis. At 1 year after operation, the parents, the surgeons, and the nurses in the operation group made a self-assessment of satisfaction according to the frontal photos of the children before and after operation., Results: The study group and the control group were injected with (28.61±8.59) and (29.33±8.08) mL of fat respectively, with no significant difference ( t =0.204, P =0.840). After injection, 1 child in the control group had a little subcutaneous induration, and no related complications occurred in the others. All children in both groups were followed up 1 year to 1 year and 6 months, with an average of 1 year and 4 months in the study group and 1 year and 3 months in the control group. At 1 year after operation, the asymmetry of the healthy and affected sides improved in both groups; the satisfactions of parents, surgeons, and nurses in the study group were all 100% (12/12), while those of the control group were 100% (12/12), 83% (10/12), and 92% (11/12), respectively. The differences between healthy and affected sides in mandibular angle-oral angle, mandibular angle-outer canthus, earlobe-lateral border of the nasal alar, and the soft tissue volume in 3 regions of the two groups after operation were significantly smaller than those before operation ( P <0.05). There was no significant difference in the above indexes between the two groups before operation ( P >0.05). After operation, all indexes were significantly lower in study group than in control group ( P <0.05)., Conclusion: Autologous nano-fat mixed granule fat transplantation and autologous granule fat transplantation can both improve the facial soft tissue dysplasia in children with mild HFM, and the former is better than the latter.

Objective: To investigate difference between the appearance and the bony structure in the polysyndactyly of the fifth toe fused with the fourth toe., Methods: From Jan. 2009 to Jan. 2014, 54 patients (65 feet) with polysyndactyly of the fifth toe fused with the fourth toe were treated. The appearance, X-ray and intraoperative finding were recorded and compared to classify the deformity. Then the extra toe was excised and syndactyly was separated. The malalignment and brachydactyly of the sixth toes were corrected simultaneously., Results: According to the bone and joint type, the fifth toes were neoplastic toes without joints in 17 feet, or had poor bony and joint alignment with the sixth toes in 48 feet. So the fifth toes were excised in all the cases. The patients were followed up for 1 month to 4 years. The oblique deformity of sixth toes were corrected completely with improved length., Conclusions: The polysyndactyly of the fifth toe fused with the fourth toe should be classified to design the excised toe (usually fifth toe) and correction procedure. The appearance and bony joint recovery are both important.

Objective: To explore the clinical effect of using dorsal two wing-shaped flap to reconstruct finger web for treatment of congenital syndactyly., Methods: This technique has been used in 19 children with congenital syndactyly. At the dorsum, a flap with V-shaped tip and two wing-shaped pedicle were designed and was just sewed up with an anchor-shaped incision at the palm. The web was primarily reconstructed without skin graft at base of fingers. Distal end of fingers were separated by using serrated flap and were closed after removal of fatty tissue. At some cases with tight skin connection. The defect area at lateral and distal end of fingers was closed by small pieces of skin graft., Results: All the webs were reconstructed primarily without skin graft at the base of fingers. 7 cases with tight skin connection had small pieces of skin graft at lateral and distal end of fingers. Primary healing was achieved in all cases. After 1 to 6 months of follow-up, both the appearance and function were satisfactory without conspicuous scar. The reconstructed finger webs were in normal depth and width., Conclusions: Primary web space can be achieved by dorsal two wing-shaped flap without skin graft at base of fingers. It is one of the best choices for treatment of congenital syndactyly.