The traditional perforator flap can not meet the need of large-area wound repair because of relatively small area. Therefore, trans-zone flap containing multiple perforasomes is increasingly used in wound repair. However, the high resistance of choke vessels in the trans-zone flap caused the insufficient blood supply at the distal end of the trans-zone flap, which may result in flap necrosis. Therefore, the necrosis at the distal end of trans-zone flap has become a difficult problem in the repair of large-area wound. Studying the hemodynamic changes and vascular remodeling of choke vessels has great significance to improve the distal blood supply of trans-zone flap. This paper reviews the researches on the hemodynamics and vascular remodeling mechanism of choke vessels at home and abroad in recent years, in order to make help for reducing the necrosis at the distal end of trans-zone flap.

Objective:To investigate the effectiveness of the firm-suspension technique in Oriental double eyelid blepharoplasty.Methods:From March 2019 to March 2021, the clinical data of patients undergoing incision double eyelid blepharoplasty with firm-suspension technique in the Department of Plastic and Cosmetic (Burn) Surgery of the Second Xiangya Hospital of Central South University and the Department of Plastic Surgery of Changsha Mylike Medical Cosmetic Hospital were retrospectively analyzed. All the internal fixation method in this study were firm-suspension technique: the levator aponeurosis, the remnants of the orbital septum, and the lower lip incision orbicularis oculi muscle were fixed to the upper edge of the tarsal plate. The height, curvature and incision scar of the double eyelid line were observed during the postoperative follow-up. The surgery doctor, patients and a third party surgeon compared photos before and more than 3 months after the operation to evaluate the effect of the operation. Three parties were satisfied as significantly effective, two parties were satisfied as effective, one party was satisfied as normal, and all were dissatisfied as poor.Results:A total of 50 patients (100 eyes) were included, including 47 females and 3 males, ranging in age from 17 to 45 years old, with an average age of 25 years. All the patients had congenital bilateral single eyelid, 43 cases underwent double eyelid surgery for the first time, and 7 patients underwent revision double eyelid surgery. The postoperative follow-up was 3 to 12 months, with an average of 6 months. All incisions were healed by primary intention. Two patients had asymmetric double eyelid folds, and the remaining 48 patients had stable double eyelid folds in shape, natural curvature, appropriate height and width, bilateral symmetry, no obvious scar, postoperative effect evaluation: 42 patients were significantly effective, 6 were effective, 2 were normal, and the satisfaction rate was 96% (48/50).Conclusion:The firm-suspension technique in Oriental blepharoplasty can obtain satisfactory postoperative appearance, and the double eyelid fold was stable.

The traditional perforator flap can not meet the need of large-area wound repair because of relatively small area. Therefore, trans-zone flap containing multiple perforasomes is increasingly used in wound repair. However, the high resistance of choke vessels in the trans-zone flap caused the insufficient blood supply at the distal end of the trans-zone flap, which may result in flap necrosis. Therefore, the necrosis at the distal end of trans-zone flap has become a difficult problem in the repair of large-area wound. Studying the hemodynamic changes and vascular remodeling of choke vessels has great significance to improve the distal blood supply of trans-zone flap. This paper reviews the researches on the hemodynamics and vascular remodeling mechanism of choke vessels at home and abroad in recent years, in order to make help for reducing the necrosis at the distal end of trans-zone flap.

Objective:To investigate the effectiveness of the firm-suspension technique in Oriental double eyelid blepharoplasty.Methods:From March 2019 to March 2021, the clinical data of patients undergoing incision double eyelid blepharoplasty with firm-suspension technique in the Department of Plastic and Cosmetic (Burn) Surgery of the Second Xiangya Hospital of Central South University and the Department of Plastic Surgery of Changsha Mylike Medical Cosmetic Hospital were retrospectively analyzed. All the internal fixation method in this study were firm-suspension technique: the levator aponeurosis, the remnants of the orbital septum, and the lower lip incision orbicularis oculi muscle were fixed to the upper edge of the tarsal plate. The height, curvature and incision scar of the double eyelid line were observed during the postoperative follow-up. The surgery doctor, patients and a third party surgeon compared photos before and more than 3 months after the operation to evaluate the effect of the operation. Three parties were satisfied as significantly effective, two parties were satisfied as effective, one party was satisfied as normal, and all were dissatisfied as poor.Results:A total of 50 patients (100 eyes) were included, including 47 females and 3 males, ranging in age from 17 to 45 years old, with an average age of 25 years. All the patients had congenital bilateral single eyelid, 43 cases underwent double eyelid surgery for the first time, and 7 patients underwent revision double eyelid surgery. The postoperative follow-up was 3 to 12 months, with an average of 6 months. All incisions were healed by primary intention. Two patients had asymmetric double eyelid folds, and the remaining 48 patients had stable double eyelid folds in shape, natural curvature, appropriate height and width, bilateral symmetry, no obvious scar, postoperative effect evaluation: 42 patients were significantly effective, 6 were effective, 2 were normal, and the satisfaction rate was 96% (48/50).Conclusion:The firm-suspension technique in Oriental blepharoplasty can obtain satisfactory postoperative appearance, and the double eyelid fold was stable.

Objective:To explore the application of bilateral autogenous auricular concha cartilage graft in the construction of nasal tip cartilage complex in comprehensive rhinoplasty.Methods:From January 2016 to June 2019, a total of 521 rhinoplasty patients in the Second Xiangya Hospital and in the Health Medical Cosmetic Hospital received the operation, including 310 patients with primary rhinoplasty and 211 patients with secondary rhinoplasty. There were 12 males and 509 females, aged 18-53 years. Contracted nose patients with severe tissue destruction were excluded. The operation method: the bilateral auricular concha cartilage was cut and combined, including the nasal columella support graft, the anti derotation graft and the cap graft, and the combination of the nasal tip framework complex was constructed to shape the nasal tip framework. At the same time, the expanded polytetrafluoroethylene or silicone prosthesis was carved into willow leaf shape to elevate the bridge of the nose. Patients were followed up after operation. Physicians, patients and a third party were asked to evaluate the preoperative and postoperative photos of more than 6 months to evaluate the surgical effect. The results suggested that the three parties were regarded as significantly effective, two parties satisfied as effective, one party satisfied as average, all dissatisfied as poor; postoperative complications such as infection and prosthesis exposure were judged as invalid. At the same time, the changes of nose tip height and nose length were measured.Results:521 patients in this group got satisfactory appearance effect immediately after operation. After 6-24 months follow-up, the shape of the nose tip remained good, the color of blood circulation was normal, the appearance of the nose tip was natural and beautiful, three-dimensional and straight. Among the 521 cases, 471 cases were significantly improved, 30 cases were improved, 15 cases were acceptable and other 5 cases were poor. The satisfaction rate was 96% (501/521). The average height of nasal tip was(3.5±0.3) mm higher than that before operation. The average length of nose was(4.9±0.4) mm longer than that before operation.Conclusions:The combination of auricular concha cartilage framework and silica gel prosthesis or expanded polytetrafluoroethylene can be used as a routine method for primary rhinoplasty and secondary rhinoplasty.

Objective:To explore the application of bilateral autogenous auricular concha cartilage graft in the construction of nasal tip cartilage complex in comprehensive rhinoplasty.Methods:From January 2016 to June 2019, a total of 521 rhinoplasty patients in the Second Xiangya Hospital and in the Health Medical Cosmetic Hospital received the operation, including 310 patients with primary rhinoplasty and 211 patients with secondary rhinoplasty. There were 12 males and 509 females, aged 18-53 years. Contracted nose patients with severe tissue destruction were excluded. The operation method: the bilateral auricular concha cartilage was cut and combined, including the nasal columella support graft, the anti derotation graft and the cap graft, and the combination of the nasal tip framework complex was constructed to shape the nasal tip framework. At the same time, the expanded polytetrafluoroethylene or silicone prosthesis was carved into willow leaf shape to elevate the bridge of the nose. Patients were followed up after operation. Physicians, patients and a third party were asked to evaluate the preoperative and postoperative photos of more than 6 months to evaluate the surgical effect. The results suggested that the three parties were regarded as significantly effective, two parties satisfied as effective, one party satisfied as average, all dissatisfied as poor; postoperative complications such as infection and prosthesis exposure were judged as invalid. At the same time, the changes of nose tip height and nose length were measured.Results:521 patients in this group got satisfactory appearance effect immediately after operation. After 6-24 months follow-up, the shape of the nose tip remained good, the color of blood circulation was normal, the appearance of the nose tip was natural and beautiful, three-dimensional and straight. Among the 521 cases, 471 cases were significantly improved, 30 cases were improved, 15 cases were acceptable and other 5 cases were poor. The satisfaction rate was 96% (501/521). The average height of nasal tip was(3.5±0.3) mm higher than that before operation. The average length of nose was(4.9±0.4) mm longer than that before operation.Conclusions:The combination of auricular concha cartilage framework and silica gel prosthesis or expanded polytetrafluoroethylene can be used as a routine method for primary rhinoplasty and secondary rhinoplasty.