Objective:To verify the applicability of the flight potential evaluation system in the psychological selection of pilots by testing the reliability and validity of the system.Methods:Between September and October 2021, 82 subjects, including 32 pilots and 50 volunteers, were recruited from the Aviation Force and the Air Force Medical Center to complete the flight potential evaluation system test. The pilots and volunteers were divided into the high score group (the top 27% in terms of scores) and low score group (the 27% from the bottom) according to the total score of the evaluation. In order to ensure the consistency of evaluation conditions, some subjects were selected to complete a second evaluation test one week later for reliability analysis. Six flight experts completed the Content Evaluation Form of the Flight Potential Evaluation System while the officer completed the Flight Performance Evaluation Questionnaire as the performance data of the pilots. The pass rates of the pilots and volunteers and discriminability of the flight potential evaluation system were analyzed to test the stability and effectiveness of the system.Results:①The flight potential evaluation system demonstrated a pass rate of 0.75 and a discriminability of 0.30 in pilots, compared with 0.30 and 0.51 in volunteers. The total scores of pilots and volunteers were (7.00±1.16) points and (3.38±2.15) points, respectively, with a statistically significant difference ( t=9.87, P<0.001). Significant differences were found in test scores between high-score group and low-score group for both pilots ( t=10.01, P<0.001) and volunteers ( Z=-4.65, P<0.001). ②Thirty-seven subjects (including 32 pilots and 5 volunteers, all from the Aviation Force) were tested twice, and the Pearson product-moment correlation coefficient for the paired results of 2 identical tests was r=0.750 ( P<0.001). ③As for the content of the evaluation system test, the experts′ degree of agreement and unanimity rate were 1. The evaluation score by the officer was positively correlated with the test score ( r=0.389, P=0.041). Conclusions:The flight potential evaluation system has a strong ability to distinguish flight-related abilities, suggesting that the system can be applied to the psychological selection of pilots and provide data for subsequent tests during the recruitment of candidates.

Objective:To explore the anal function and postoperative complications of 2-stage Turnbull-Cutait pull-through coloanal anastomosis (TCA) for low rectal cancer.Methods:Patients undergoing radical rectal cancer resection from Feb 2023 to Nov 2024 in the First Hospital of Jilin University were divided into the TCA surgery group and the low anterior resection combined with prophylactic stoma (LAR) surgery group.Results:Among the 102 patients, there were 50 cases in the TCA group and 52 cases in the LAR group. In the single-arm analysis of the TCA group, the overall complication rate was 44%. The incidence rates of severe LARS at 1 month, 3 months, and 6 months after surgery were 97%, 77%, and 64% respectively. There was no significant difference in the complication rate within 30 days after surgery between the two groups,(44% vs. 38%, χ2=0.135, P>0.05). There was no significant difference in the incidence rate of severe LARS between the TCA group and the LAR group (77% vs. 69%, χ2=0.202, P>0.05), and there was not significant difference in the incidence rate of severe LARS between the two groups at the 6th month after surgery,(64% vs. 48%, χ2=1.132, P>0.05). Conclusion:In patients who underwent TCA surgery, the LARS symptoms gradually decreased over time. Compared with patients undergoing low anterior resection and stoma reversal, there were no significant differences in complications within 30 days after surgery and LARS symptoms within half a year.

Objective:To investigate the protocol and clinical efficacy of hair follicle-bearing microskin (HF-MS) transplantation in the treatment of hypertrophic scars.Methods:Prospective randomized controlled trial. From January to November 2024, patients with hypertrophic scars were recruited from the Medical Cosmetic Center of Affiliated Hangzhou First People’s Hospital with Westlake University School of Medicine and the Department of Plastic and Reconstructive Surgery of Ningbo Sixth Hospital. Patients were randomly divided into the observation group and the control group using a random number table. In the observation group, 1.0 mm punch decompression was performed on the hypertrophic scar area, followed by implantation of HF-MS extracted from the scalp donor site using follicular unit excision (FUE) into the decompression pores. The control group underwent only 1.0 mm punch decompression. Vancouver scar scale (VSS) scores (total score 0-15, higher scores indicating more severe scarring) were assessed preoperatively and at 1, 3, and 6 months postoperatively. Efficacy at 6 months, improvement in hypertrophic scar area, hair survival rate (observation group), adverse reactions, and patients’ satisfaction rates were evaluated. Categorical data were expressed as frequency (%) and analyzed using chi-square tests; normally distributed measurement data were expressed as Mean ± SD and analyzed using independent samples t-tests. Results:A total of 50 patients were included (25 per group), with 22 males and 28 females, aged 18-60 years (mean age: 33 years). The effective rate was 92% (23/25) in the observation group and 68% (17/25) in the control group, showing a statistically significant difference ( P<0.05). Preoperative VSS scores did not differ significantly between the observation and control groups [(6.67±3.19) vs. (7.12±2.89), P>0.05]. At 1, 3, and 6 months postoperatively, the observation group had VSS scores of (5.48±2.60), (4.64±2.39), and (3.80±2.10), respectively, compared to (6.36±2.53), (5.84±2.28), and (5.32±2.09) in the control group. The 6-month postoperative VSS scores differed significantly between groups ( P<0.05). Preoperative hypertrophic scar areas showed no significant difference [(5.75±2.83) cm 2 vs. (6.91±3.31) cm 2,P>0.05]. At 6 months postoperatively, the observation group had significantly smaller scar areas than the control group [(3.15±1.55) cm 2 vs. (5.37±2.93) cm 2,P<0.01]. The average hair survival rate in the observation group was 41% at 6 months. Adverse reactions occurred in 3 cases in the observation group (2 skin indurations, 1 hyperpigmentation) and 7 cases in the control group (4 hyperpigmentation, 2 skin atrophy, 1 skin induration). The observation group had a significantly lower adverse reaction rate [12% (3/25) vs. 28% (7/25), P<0.05]. Patient satisfaction rates were 88% (22/25) in the observation group and 64% (16/25) in the control group ( P<0.05). Conclusion:HF-MS transplantation demonstrates definitive clinical efficacy in treating hypertrophic scars, effectively improving scar morphology, clinical symptoms, and patient quality of life.

Objective:To evaluate the clinical efficacy of infraorbital rim drilling midface lift combined with composite lower blepharoplasty.Methods:Retrospective analysis of clinical data from the patients who underwent combined midface lift and lower blepharoplasty at Department of Medical Cosmetic Center, Affiliated Hangzhou First People’s Hospital, Westlake University School of Medical, between January 2022 and February 2024.The infraorbital rim drilling midface lift combined with lower blepharoplasty was performed via a subciliary incision approach. Through a subciliary incision, the herniated orbital fat was excised, followed by fixation of the orbital septum to the infraorbital rim periosteum. Drill holes were created at the medial and lateral infraorbital rim, and arcuate suspension of the midface was performed using 2-0 absorbable sutures (SXPP1A405). Postoperative follow-up assessed midface lifting outcomes and complication rates. The wrinkle severity rating scale (WSRS) was used to grade nasolabial folds pre- and postoperatively (5-point scale: higher scores indicating more pronounced folds). Patient-reported outcomes were assessed using the Face-Q questionnaire, evaluating: (1) overall facial satisfaction, (2) satisfaction with surgical results, and (3) satisfaction with decision (scale 0-100; higher scores indicating greater satisfaction/less decisional regret). Descriptive statistical methods were employed for data analysis.Results:A total of 43 patients were enrolled, comprising 7 males and 36 females, with a mean age of (50.6±12.2) years (range: 32-73 years). Postoperative follow-up averaged (11.9±4.6)months. All patients demonstrated significant improvement in lower eyelid bags, tear trough deformity, midface elevation, and nasolabial folds. Surgical complications included: residual lower eyelid fat ( n=5), intermittent fixation point pain persisting >1 month ( n=4), mild residual tear trough deformity ( n=4), and hematoma ( n=1). Nasolabial fold WSRS scores decreased from ( 3.7±0.9 ) points to(2.9±0.6)points following surgery. In 38 patients, Face-Q scores demonstrated high satisfaction levels: appearance-related satisfaction scored (80.9 ± 10.3)points and satisfaction with decision scored (82.4 ± 8.9)points, indicating favorable patient-reported outcomes. Conclusion:The infraorbital rim drilling-assisted midface lift combined with comprehensive lower blepharoplasty effectively corrects midface ptosis while addressing lower eyelid bags. This technique provides reliable fixation points through drilling, resulting in stable and long-lasting lifting outcomes with high patient satisfaction.

Objective:To investigate the clinical efficacy of hair follicle-bearing microskin transplantation as a novel therapeutic approach for subacute wounds.Methods:A prospective randomized controlled trial was conducted from June to October 2024, involving patients with subacute wounds treated in the Department of Plastic and Reconstructive Surgery, Hand Microsurgery at Ningbo No.6 Hospital, and the Medical Aesthetics Center at Hangzhou First People’s Hospital. Participants were randomly assigned via a random number table into two groups: the observation group received hair follicle-bearing microskin transplantation, while the control group received conventional treatment including debridement, dressing changes, antimicrobial therapy, and local pressure relief. The observation endpoint was set at 6 weeks post-treatment. Outcome measures included time to complete wound healing, wound healing score (comprising five items: wound area, appearance, exudate, signs of infection, and condition of surrounding skin; total score 0-15, with a higher score indicating poorer healing), donor site recovery, adverse reactions, and patient satisfaction [rated on a 4-level scale: very satisfied, satisfied, basically satisfied, dissatisfied; satisfaction rate was calculated as (very satisfied + satisfied) cases/total cases×100%]. Data were analyzed using SPSS 25.0 software, with continuous variables expressed as Mean±SD and compared via t-test; enumeration data were expressed as cases (relative numbers) and analyzed using Fisher’s exact test. P<0.05 was considered statistically significant. Results:Sixteen patients were enrolled (8 per group), including 12 males and 4 females, with a mean age of 46 years (range: 41-71). No significant differences in baseline characteristics (gender, age, wound duration, and wound area) were observed between the two groups (all P>0.05). All procedures in the observation group were completed successfully without intraoperative or short-term postoperative complications. The donor site area was (28.2±11.8) cm 2 (9.0-50.0 cm 2). All wounds in the observation group healed completely within 2-5 weeks post-treatment, with a mean healing time of (26.2±5.0) d. The donor sites healed within two weeks, leaving only pinpoint scars. In contrast, only 4 cases in the control group achieved complete healing within the observation period (6 weeks post-treatment), with a mean healing time of (33.2±5.7) d. The other 4 patients showed no tendency to heal at 6 weeks and progressed to chronic wounds. Before treatment, no significant difference in wound healing scores was found between the two groups (9.6±2.6 vs. 9.1±2.0, t=0.43, P=0.676). At 6 weeks post-treatment, the observation group showed significantly lower wound healing scores than the control group (1.2±1.5 vs. 7.9±3.9, t=-4.48, P=0.001). At 6 weeks post-treatment, patient satisfaction in the observation group was significantly higher than that in the control group (8/8 vs. 4/8, P=0.006). Conclusion:Hair follicle-bearing microskin transplantation demonstrates significant clinical advantages in treating subacute wounds, including accelerated healing, improved aesthetic outcomes, minimal donor site morbidity, and rapid recovery.

Objective:To verify the applicability of the flight potential evaluation system in the psychological selection of pilots by testing the reliability and validity of the system.Methods:Between September and October 2021, 82 subjects, including 32 pilots and 50 volunteers, were recruited from the Aviation Force and the Air Force Medical Center to complete the flight potential evaluation system test. The pilots and volunteers were divided into the high score group (the top 27% in terms of scores) and low score group (the 27% from the bottom) according to the total score of the evaluation. In order to ensure the consistency of evaluation conditions, some subjects were selected to complete a second evaluation test one week later for reliability analysis. Six flight experts completed the Content Evaluation Form of the Flight Potential Evaluation System while the officer completed the Flight Performance Evaluation Questionnaire as the performance data of the pilots. The pass rates of the pilots and volunteers and discriminability of the flight potential evaluation system were analyzed to test the stability and effectiveness of the system.Results:①The flight potential evaluation system demonstrated a pass rate of 0.75 and a discriminability of 0.30 in pilots, compared with 0.30 and 0.51 in volunteers. The total scores of pilots and volunteers were (7.00±1.16) points and (3.38±2.15) points, respectively, with a statistically significant difference ( t=9.87, P<0.001). Significant differences were found in test scores between high-score group and low-score group for both pilots ( t=10.01, P<0.001) and volunteers ( Z=-4.65, P<0.001). ②Thirty-seven subjects (including 32 pilots and 5 volunteers, all from the Aviation Force) were tested twice, and the Pearson product-moment correlation coefficient for the paired results of 2 identical tests was r=0.750 ( P<0.001). ③As for the content of the evaluation system test, the experts′ degree of agreement and unanimity rate were 1. The evaluation score by the officer was positively correlated with the test score ( r=0.389, P=0.041). Conclusions:The flight potential evaluation system has a strong ability to distinguish flight-related abilities, suggesting that the system can be applied to the psychological selection of pilots and provide data for subsequent tests during the recruitment of candidates.

Objective:To explore the anal function and postoperative complications of 2-stage Turnbull-Cutait pull-through coloanal anastomosis (TCA) for low rectal cancer.Methods:Patients undergoing radical rectal cancer resection from Feb 2023 to Nov 2024 in the First Hospital of Jilin University were divided into the TCA surgery group and the low anterior resection combined with prophylactic stoma (LAR) surgery group.Results:Among the 102 patients, there were 50 cases in the TCA group and 52 cases in the LAR group. In the single-arm analysis of the TCA group, the overall complication rate was 44%. The incidence rates of severe LARS at 1 month, 3 months, and 6 months after surgery were 97%, 77%, and 64% respectively. There was no significant difference in the complication rate within 30 days after surgery between the two groups,(44% vs. 38%, χ2=0.135, P>0.05). There was no significant difference in the incidence rate of severe LARS between the TCA group and the LAR group (77% vs. 69%, χ2=0.202, P>0.05), and there was not significant difference in the incidence rate of severe LARS between the two groups at the 6th month after surgery,(64% vs. 48%, χ2=1.132, P>0.05). Conclusion:In patients who underwent TCA surgery, the LARS symptoms gradually decreased over time. Compared with patients undergoing low anterior resection and stoma reversal, there were no significant differences in complications within 30 days after surgery and LARS symptoms within half a year.

Objective:To investigate the protocol and clinical efficacy of hair follicle-bearing microskin (HF-MS) transplantation in the treatment of hypertrophic scars.Methods:Prospective randomized controlled trial. From January to November 2024, patients with hypertrophic scars were recruited from the Medical Cosmetic Center of Affiliated Hangzhou First People’s Hospital with Westlake University School of Medicine and the Department of Plastic and Reconstructive Surgery of Ningbo Sixth Hospital. Patients were randomly divided into the observation group and the control group using a random number table. In the observation group, 1.0 mm punch decompression was performed on the hypertrophic scar area, followed by implantation of HF-MS extracted from the scalp donor site using follicular unit excision (FUE) into the decompression pores. The control group underwent only 1.0 mm punch decompression. Vancouver scar scale (VSS) scores (total score 0-15, higher scores indicating more severe scarring) were assessed preoperatively and at 1, 3, and 6 months postoperatively. Efficacy at 6 months, improvement in hypertrophic scar area, hair survival rate (observation group), adverse reactions, and patients’ satisfaction rates were evaluated. Categorical data were expressed as frequency (%) and analyzed using chi-square tests; normally distributed measurement data were expressed as Mean ± SD and analyzed using independent samples t-tests. Results:A total of 50 patients were included (25 per group), with 22 males and 28 females, aged 18-60 years (mean age: 33 years). The effective rate was 92% (23/25) in the observation group and 68% (17/25) in the control group, showing a statistically significant difference ( P<0.05). Preoperative VSS scores did not differ significantly between the observation and control groups [(6.67±3.19) vs. (7.12±2.89), P>0.05]. At 1, 3, and 6 months postoperatively, the observation group had VSS scores of (5.48±2.60), (4.64±2.39), and (3.80±2.10), respectively, compared to (6.36±2.53), (5.84±2.28), and (5.32±2.09) in the control group. The 6-month postoperative VSS scores differed significantly between groups ( P<0.05). Preoperative hypertrophic scar areas showed no significant difference [(5.75±2.83) cm 2 vs. (6.91±3.31) cm 2,P>0.05]. At 6 months postoperatively, the observation group had significantly smaller scar areas than the control group [(3.15±1.55) cm 2 vs. (5.37±2.93) cm 2,P<0.01]. The average hair survival rate in the observation group was 41% at 6 months. Adverse reactions occurred in 3 cases in the observation group (2 skin indurations, 1 hyperpigmentation) and 7 cases in the control group (4 hyperpigmentation, 2 skin atrophy, 1 skin induration). The observation group had a significantly lower adverse reaction rate [12% (3/25) vs. 28% (7/25), P<0.05]. Patient satisfaction rates were 88% (22/25) in the observation group and 64% (16/25) in the control group ( P<0.05). Conclusion:HF-MS transplantation demonstrates definitive clinical efficacy in treating hypertrophic scars, effectively improving scar morphology, clinical symptoms, and patient quality of life.

Objective:To evaluate the clinical efficacy of infraorbital rim drilling midface lift combined with composite lower blepharoplasty.Methods:Retrospective analysis of clinical data from the patients who underwent combined midface lift and lower blepharoplasty at Department of Medical Cosmetic Center, Affiliated Hangzhou First People’s Hospital, Westlake University School of Medical, between January 2022 and February 2024.The infraorbital rim drilling midface lift combined with lower blepharoplasty was performed via a subciliary incision approach. Through a subciliary incision, the herniated orbital fat was excised, followed by fixation of the orbital septum to the infraorbital rim periosteum. Drill holes were created at the medial and lateral infraorbital rim, and arcuate suspension of the midface was performed using 2-0 absorbable sutures (SXPP1A405). Postoperative follow-up assessed midface lifting outcomes and complication rates. The wrinkle severity rating scale (WSRS) was used to grade nasolabial folds pre- and postoperatively (5-point scale: higher scores indicating more pronounced folds). Patient-reported outcomes were assessed using the Face-Q questionnaire, evaluating: (1) overall facial satisfaction, (2) satisfaction with surgical results, and (3) satisfaction with decision (scale 0-100; higher scores indicating greater satisfaction/less decisional regret). Descriptive statistical methods were employed for data analysis.Results:A total of 43 patients were enrolled, comprising 7 males and 36 females, with a mean age of (50.6±12.2) years (range: 32-73 years). Postoperative follow-up averaged (11.9±4.6)months. All patients demonstrated significant improvement in lower eyelid bags, tear trough deformity, midface elevation, and nasolabial folds. Surgical complications included: residual lower eyelid fat ( n=5), intermittent fixation point pain persisting >1 month ( n=4), mild residual tear trough deformity ( n=4), and hematoma ( n=1). Nasolabial fold WSRS scores decreased from ( 3.7±0.9 ) points to(2.9±0.6)points following surgery. In 38 patients, Face-Q scores demonstrated high satisfaction levels: appearance-related satisfaction scored (80.9 ± 10.3)points and satisfaction with decision scored (82.4 ± 8.9)points, indicating favorable patient-reported outcomes. Conclusion:The infraorbital rim drilling-assisted midface lift combined with comprehensive lower blepharoplasty effectively corrects midface ptosis while addressing lower eyelid bags. This technique provides reliable fixation points through drilling, resulting in stable and long-lasting lifting outcomes with high patient satisfaction.

Objective:To investigate the clinical efficacy of hair follicle-bearing microskin transplantation as a novel therapeutic approach for subacute wounds.Methods:A prospective randomized controlled trial was conducted from June to October 2024, involving patients with subacute wounds treated in the Department of Plastic and Reconstructive Surgery, Hand Microsurgery at Ningbo No.6 Hospital, and the Medical Aesthetics Center at Hangzhou First People’s Hospital. Participants were randomly assigned via a random number table into two groups: the observation group received hair follicle-bearing microskin transplantation, while the control group received conventional treatment including debridement, dressing changes, antimicrobial therapy, and local pressure relief. The observation endpoint was set at 6 weeks post-treatment. Outcome measures included time to complete wound healing, wound healing score (comprising five items: wound area, appearance, exudate, signs of infection, and condition of surrounding skin; total score 0-15, with a higher score indicating poorer healing), donor site recovery, adverse reactions, and patient satisfaction [rated on a 4-level scale: very satisfied, satisfied, basically satisfied, dissatisfied; satisfaction rate was calculated as (very satisfied + satisfied) cases/total cases×100%]. Data were analyzed using SPSS 25.0 software, with continuous variables expressed as Mean±SD and compared via t-test; enumeration data were expressed as cases (relative numbers) and analyzed using Fisher’s exact test. P<0.05 was considered statistically significant. Results:Sixteen patients were enrolled (8 per group), including 12 males and 4 females, with a mean age of 46 years (range: 41-71). No significant differences in baseline characteristics (gender, age, wound duration, and wound area) were observed between the two groups (all P>0.05). All procedures in the observation group were completed successfully without intraoperative or short-term postoperative complications. The donor site area was (28.2±11.8) cm 2 (9.0-50.0 cm 2). All wounds in the observation group healed completely within 2-5 weeks post-treatment, with a mean healing time of (26.2±5.0) d. The donor sites healed within two weeks, leaving only pinpoint scars. In contrast, only 4 cases in the control group achieved complete healing within the observation period (6 weeks post-treatment), with a mean healing time of (33.2±5.7) d. The other 4 patients showed no tendency to heal at 6 weeks and progressed to chronic wounds. Before treatment, no significant difference in wound healing scores was found between the two groups (9.6±2.6 vs. 9.1±2.0, t=0.43, P=0.676). At 6 weeks post-treatment, the observation group showed significantly lower wound healing scores than the control group (1.2±1.5 vs. 7.9±3.9, t=-4.48, P=0.001). At 6 weeks post-treatment, patient satisfaction in the observation group was significantly higher than that in the control group (8/8 vs. 4/8, P=0.006). Conclusion:Hair follicle-bearing microskin transplantation demonstrates significant clinical advantages in treating subacute wounds, including accelerated healing, improved aesthetic outcomes, minimal donor site morbidity, and rapid recovery.