Yuanbo Liu

Yuanbo Liu
Peking University | PKU

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68
Publications
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462
Citations

Publications

Publications (68)
Article
Sideburns are crucial for head and face esthetics. Absence of sideburns is associated with physical and psychological consequences. Many methods have been described for sideburn reconstruction; however, characteristics of the ideal method include optimal vascularization, ideal hair density, natural hair growth, and facial symmetry with minimum dono...
Article
Background: The preoperative identification of perforators is critical to the success of perforator flaps. Several technologies, including handheld Doppler (HHD) and indocyanine green angiography (ICGA), facilitate this process; however, each technology comes with unique downsides. This study directly compares the performance of HHD and ICGA in pr...
Article
Full-text available
Reconstruction of soft tissue defects around the knee is challenging, and the most common solution is to use various locoregional flaps or, in some difficult cases, a free flap. The distally based anterolateral thigh (dALT) flap is a commonly used flap that relies on reverse blood flow from the descending branch of the lateral circumflex femoral ar...
Article
Objective: To explore the feasibility and effectiveness of perforator propeller flap sequential transfer technique in repair of soft tissue defect of distal lower extremity. Methods: Between July 2015 and July 2021, 10 patients with soft tissue defect of distal lower extremity were treated with perforator propeller flap sequential transfer techn...
Article
The pedicled lower trapezius musculocutaneous flap (LTMF) can extend far beyond the lateral border of the trapezius muscle, with a reliable blood supply. However, the distal part of the extended LTMF lacks a muscular component, limiting its usage in complex defect reconstruction, which often requires obliteration of dead space and coverage of vital...
Article
Objective: To explore the reliability and effectiveness of prediction of the pedicle length of the proximally-based anterolateral thigh (pALT) flap which was used to repair the defects following the resection of various malignant tumors using computed tomographic angiography (CTA). Methods: The clinical data of 12 patients who met the selection...
Article
Local and free flaps are widely used in buttock reconstruction. However, local flaps and free flaps may not be appropriate for all complex soft tissue defects in the buttocks. In this study, we propose an alternative approach and preliminary assessment of the clinical efficacy of a proximally based anterolateral thigh flap for buttock reconstructio...
Article
Objective: To explore the feasibility and effectiveness of using the superior lateral genicular artery (SLGA) perforator propeller flap to reconstruct soft-tissue defects around the knee joint. Methods: Between October 2013 and May 2019, 10 patients underwent repairing of soft-tissue defects around the knee joint using the SLGA perforator propel...
Article
The superficial temporal artery (STA) frontal branch flap is susceptible to venous congestion because of its unpredictable and variable outflow. The authors applied indocyanine green angiography in identifying the superficial temporal vessels to help surgeons with proper flap designs to avoid severe complications. A retrospective review from 2015 t...
Article
Full-text available
W‐plasty is a very popular scar excisional revision technique. The core of the technique is to break up the scar margins into small triangular components, so as to cause light scattering and make the scar less noticeable. However, due to skin tension, facial incision scars tend to spread. Applying W‐plasty alone cannot achieve the ideal repair effe...
Article
The pre-expanded medial arm flap provides suitable skin for the resurfacing of a periorbital or perioral defect. However, the flap must be intraoperatively split to imitate the appearance of the oral or ophthalmic fissure, which can compromise flap perfusion. This study aimed to evaluate the safety and effectiveness of splitting pre-expanded medial...
Preprint
Full-text available
Background Local and free flaps are most widely used in buttock reconstruction. However, local flaps and free flaps may not be appropriate for all complex soft tissue defects in buttock. In this study, we propose an alternative approach for buttock reconstruction and provide preliminary assessment in clinical efficacy of using a proximally based an...
Article
Aims Tendon development requires the coordinated interaction of muscles and tendons. Muscle-derived cells (MDCs), a mixed cell population containing both myogenic and fibroblastic cell subsets, have been found to be ideal seed cells for tendon regeneration. However, the necessity of these cell types for tendon regeneration has not yet been tested....
Article
En bloc reconstruction of extensive head and neck defects is feasible with matched tissue from the medial arm or chest. Nevertheless, the donor site faces significant morbidity following massive cutaneous flap harvesting. The serial flap transfer technique can increase the reconstructive ability of these flaps and minimize the donor site morbidity....
Article
Objective: To explore the reliability and effectiveness of soft tissue defect reconstruction using the lower trapezius musculocutaneous flap carrying a portion of the latissimus dorsi muscle. Methods: Between December 2014 and December 2019, 13 patients underwent the reconstruction of soft tissue defects in various sites using the lower trapeziu...
Article
Objective: To explore the feasibility of using indocyanine green (ICG) angiography to detect brachial artery perforators, and the clinical application of brachial artery perforator propeller (BAPP) flaps to repair soft tissue defects of the trunk and upper limbs. Methods: Between August 2016 and February 2019, ICG angiography was used to detect...
Article
The medial arm flap has multiple advantages when used for cervicofacial defect reconstruction but remains underused. The main drawback of the medial arm flap is that the patient must maintain the passive immobilized posture before the pedicle division. This clinical study aims to introduce a reconstructive method for cervicofacial defects using the...
Article
Background: Clinical examination alone is neither sensitive nor specific for predicting flap necrosis, so several technologies, including indocyanine green angiography, thermal imaging (using the FLIR ONE), and near-infrared spectroscopy, have been developed to supplement perfusion assessment. This study aims to compare the accuracy of these three...
Article
Background: Although propeller flaps are a useful option for soft tissue defect reconstruction, reports based on the perforators of the lateral circumflex femoral artery (LCFA) are rare. We aimed to present our experience in defect reconstruction using the propeller flaps based on perforators from different branches of LCFA and apply these flaps i...
Article
The tissues of the medial arm as a donor site for perforator flap design have several advantages. However, they are relatively underused with limited reports, partly due to unreliable perforator anatomy. Therefore, we aimed to review our preliminary experience using indocyanine green (ICG) angiography to design and elevate preexpanded pedicled brac...
Article
Full-text available
Surgical excision combined with postoperative radiotherapy is considered one of the most radical but most effective keloid therapeutic option. However, radiotherapy may not be appropriate for all keloid patients. In this study, we propose an alternate approach to prevent keloid recurrence and provide preliminary assessment in clinical efficacy of t...
Article
The peroneal artery perforator propeller flap is commonly used for distal lower extremity reconstruction; however, closure of the donor site defect can limit the utility of this flap. To overcome this limitation, we introduced a perforator propeller flap relay technique to reconstruct the donor-site defect. Between July 2015 and February 2019, the...
Article
Background: The latissimus dorsi myocutaneous flap is widely used in reconstructive surgery; however, primary donor-site closure remains challenging when a wide flap is harvested. Methods: A large latissimus dorsi myocutaneous flap was elevated and transferred to repair defects. Perforators adjacent to the donor site of the myocutaneous flap wer...
Article
Full-text available
Background: Free flap-mediated gene therapy in the tumor bed following surgical resection is a promising approach in cancer targeted treatment of residual disease. We investigated the selective killing efficacy of a lentivirus-mediated cytosine deaminase-thymidine kinase (CDglyTK) gene in transplanted breast cancer delivered into a free flap by in...
Article
Background: The medial arm flap has a long history but remains underused despite providing multiple advantages. We reviewed our experience with using the medial arm flap to clarify the distribution of septocutaneous perforators and its relationship with pedicled flap design. Patients and methods: This retrospective study included 36 consecutive...
Article
Background: Our previous study showed that muscle-derived cells could regenerate strong engineered tendon with better tissue structure. However, little was known about the mechanism of neo-tendon built by muscle-derived cells, and the development and maturation of the cells. We hypothesized that mechanical loading modulated this process. The aim o...
Article
Objective: This clinical study describes a reconstructive method for facial soft-tissue defects that uses the pre-expanded forehead flap and minimizes donor site morbidities. Methods: The surgery was subdivided into 3 stages. First stage, an appropriately sized expander was buried underneath the forehead. Second stage, after adequate inflation o...
Article
Background: Anteromedial thigh flaps are far less clinically appealing than their anterolateral counterparts, and are occasionally considered as an alternative to the anterolateral thigh flap. Herein, we report the study of soft-tissue defects reconstruction in the knee using a distally based anteromedial thigh flap pedicled on the rectus femoris...
Article
Successful raising of a distally based anterolateral thigh (dALT) flap mainly depends on a well-developed lateral circumflex femoral artery (LCFA) descending branch and an intact vascular connection between the descending branch and the vascular network of the knee. However, in some clinical scenarios, the descending branch is hypoplastic or the va...
Article
This clinical study aimed at introducing a reconstructive method for total cheek soft tissue defects using the pre-expanded medial arm flap and to maximally reduce donor site morbidities simultaneously. A retrospective review of data was performed for 3 patients requiring the pre-expanded medial arm flap to reconstruct total cheek defects. The dono...
Article
Objective: To explore the feasibility and effectiveness of sideburn reconstruction using the expanded island scalp flap based on the parietal branch of the superficial temporal vessel. Methods: Between February 2012 and April 2015, 7 patients underwent sideburn reconstruction. There were 3 males and 4 females with an average age of 15 years (ran...
Article
Background: The lateral circumflex femoral artery system with its anatomical variations is a common source vessel for numerous thigh flaps. However, the anatomic variations of the distally based thigh flaps have not been well classified. Methods: Between July 2008 and July 2016, 19 patients (13 men and 6 women; age range, 3-58 years; mean, 27.5...
Article
Objective: To explore the feasibility and technical essentials of soft tissue defect reconstruction of the lower extremity using the distally based anteromedial thigh flap (dAMT) pedicled with perforating vessels from rectus femoris branch. Methods: Between July 2008 and December 2015, 6 patients underwent defect reconstruction of the lower extr...
Article
The medial upper arm flap is a time-honored yet ignored technique. It may be revitalized by combining the techniques of tissue expansion and perforator flap surgery. Pre-expansion increases flap dimension, remodels flap vasculature, and reduces donor site morbidities, making the medial arm flap a more effective option for various defect reconstruct...
Article
The paraumbilical perforator flap is the first and the most famous perforator flap. Pre-expansion increases the flap dimension and reduces the flap thickness and donor site morbidities, making the paraumbilical perforator flap a more effective option for upper extremity reconstruction. Pre-expanded pedicled paraumbilical perforator flaps can achiev...
Article
Objective: To explore the feasibility and technique of reconstruction of extensive soft-tissue defects at upper extremities using the pre-expanded paraumbilical perforator (PUP) flaps. Methods: Pre-expanded PUP flap was used to reconstruct large soft-tissue defect at the upper extremity according to the size, shape, and location of the defect in...
Article
Objective: To explore the feasibility and technical tips of the posterior intercostal artery perforator (PICAP) flaps for trunk defect reconstruction. Methods: The PICAPs were thoroughly explored with the hand-held ultrasound Doppler.According to the size,shape and location of the defect,a perforator flap was raised based on the chosen PICAP,rot...
Article
Background: Defects after soft tissue sarcoma resection are usually managed by myocutaneous flaps or free flaps. However, harvesting muscle will cause functional morbidities, and some regions lack reliable recipient vessel. Our purpose is to use various perforator propeller flaps for oncologic reconstruction. Methods: Between 2008 and 2014, 33 p...
Article
Trunk defects following soft tissue sarcoma resection are usually managed by myocutaneous flaps or free flaps. However, harvesting muscle will cause functional morbidities and some trunk regions lack reliable recipient vessels. The intercostal arteries give off multiple perforators, which distribute widely over the trunk and can supply various pedi...
Article
Elbow reconstruction is challenging for reconstructive surgeons. The purpose of this report is to present the results of the use of freestyle perforator-based propeller flap designed from the medial arm region for elbow reconstruction. The defects following soft tissue sarcoma resection at the medial and posterior elbow were repaired in two patient...
Article
Abdominoplasty is one of the most frequently performed surgical procedures. A number of methods have been described for coverage of forearm skin defects. This report presents a case in which the excess tissue of an abdominoplasty was used for skin and soft tissue defect coverage. A woman with a burn scar contracture of the right forearm and postpar...
Article
The anterolateral thigh flap has been used to reconstruct defects of lower trunk, perineum and upper thigh. We used a proximally based pedicled anterolateral thigh flap to repair an extensive gluteal defect ranging from the greater trochanter to the posterior midline and preserve the buttock contour. We conclude that the maximal lateral reach of th...
Article
The pedicled paraumbilical flap is a reliable tissue transfer for hand and forearm reconstruction. However, its size, pedicle length and/or thickness limit its application in resurfacing of extensive defects of the upper limb. To conquer those limitations, this flap was pre-expanded for 10-24 weeks prior to transfer in 25 patients and used as a ped...
Article
Closure of donor-site defects from large cutaneous flap harvesting often faces significant morbidity, which limits the utility of workhorse flaps in large-soft-tissue defect reconstruction. To overcome this limitation, we introduced the concept of a second 'buddy' flap to reconstruct the donor-site defect. Between 2007 and 2010, the buddy flap conc...
Article
Reconstruction of the large lumbar defect is a challenge for plastic surgeons. We report our experience with the reverse latissimus dorsi myocutaneous flap for the coverage of large lumbar wounds in 2 oncologic patients. Meanwhile, a pedicled ascending scapular flap was used to aid the donor closure of the musculocutaneous flap. This allows for eas...
Article
Arteriovenous fistulae are abnormal communications between arteries and veins, leading to bypass of the normal capillary bed circulation, often with progressive enlargement giving rise to multiple complications. The occurrence of the arteriovenous fistula after a microsurgical operation is a rare complication. Hurst and Sukop have reported the occu...
Article
A pedicled super-thin superficial inferior epigastric artery flap can provide a thin and pliable skin coverage for the hand dorsum, and debulking of the flap during elevation limits the need for secondary procedures. Simultaneously, an island deep inferior epigastric perforator flap transferred to reconstruct the flap donor site in the abdomen subs...
Article
We present a patient with a neck burn scar contracture. A parascapular free flap is used to re-surface the cervical defect, while the resultant donor-site defect is reconstructed by a freestyle pedicled thoracodorsal artery perforator flap. With the introduction of a freestyle pedicled perforator flap, large-sized donor-site defects of the parascap...
Article
Electrical burn in the pubic region usually results in a severe and contractive scar with pubic hair loss. The aesthetic restoration of this area often has become very difficult. A 22-year-old male electrical engineer experienced severe pubic scarring with hair loss after electrical burn. He was treated successfully with an expanded free-forehead f...
Article
To summarize the experiences of the breast reconstruction using the deep inferior epigastric perforator (DIEP) flaps. From March 2000 to March 2005, 18 cases of breast defects were treated. Defect was caused by mammary cancer in 17 cases and by Poland's syndrome in 1 case. Preoperative radiotherapy was given in 7 patients. The size of the chest wal...
Article
To probe the principle and the method to repair facial soft tissue defect with the prefabricated expander flap the neck with the vessels of temporalis superficialis. The expander was implanted into the surface layer of the platysma in neck. The pedicle of the expander flap contained the arteria temporalis superficialis and its ramux parietalis. Aft...
Article
To provide ideal materials for resurfacing penile ventral wounds. For hypospadias with scrotal fissure and penile-scrotal transposition, scrotal skin flaps based on lateral branches of posterior scrotal arteries were utilized to resurface penile ventral wounds when urethral reconstruction were finished. 9 cases of hypospadias of different types hav...
Article
To improve the results of the soft tissue expansion technique. Two expanders were buried in the same soft tissue pocket in an overlapping pattern. The inflation process was carried out routinely. 19 cases of various tissue defects were treated with the overlapping tissue expansion technique since March 1999. Good results have been achieved. The ove...
Article
To provide ideal materials for repair of penile wounds in penis lengthening. A skin incision was made between the penis and mons pubis. Penis lengthening was performed by complete releasing of the superficial suspensory ligament and partial releasing of the deep suspensory ligament of the penis. Resurfacing of the defects at the penile base was acc...
Article
The purpose of this study was to provide the guidelines with respect to the location of the facial vessels, observe the potential reversed flow of the facial artery, and reemphasize the value of color Doppler ultrasound studies in flap planning. A study was carried out to investigate the location and dynamics of the facial artery and vein using col...
Article
To verify the value of retrograde flow of Internal Mammary Artery (IMA) used as one of the supplying arteries and to develop a new method of applying IMA in breast reconstruction. During breast reconstruction with free bilateral transverse rectus abdominis myocutaneous (TRAM) flap, the pressures and velocities of the two ends (proximal and distal)...
Article
Breast reconstruction after traditional radical mastectomy is particularly challenging for the plastic surgeon. Not only the breast, but subclavian and anterior axillary-fold deformities need to be corrected. An entire TRAM flap (including zone IV) is required, and bipedicled deep inferior epigastric vessels are needed to insure that the entire fla...
Article
Breast reconstruction in patients who have already undergone traditional radical mastectomy can be very challenging for plastic surgeons. These patients require not only correction of breast deformities but also correction of subclavian and anterior axillary fold deformities. Usually the entire transverse rectus abdominal myocutaneous (TRAM) or dee...
Article
The purpose of this study was to provide some guidelines with respect to the location of the facial vessels, display the potential inverted blood flow of the facial artery, and reemphasize the value of color Doppler ultrasound studies in flap planning. An anatomic study of the facial artery and vein was done using color Doppler ultrasonography in 1...
Article
The authors studied the vascular anatomy of the buccinator muscle by dissecting fresh cadavers. The anatomy of the buccal branches of the facial artery consistently confirmed the existence of a posterior buccal branch, a few inferior buccal branches, and anterior buccal branches to the posterior, inferior, and anterior portions of the buccinator. T...
Article
A study was made of the facial regions of 10 fresh cadavers. The vascular anatomy of the perinasal region and the septum consistently confirmed the existence of a nasal alar basal artery and a nasal alar basal nerve to the septum. A new septal chondromucosal flap, supplied by the nasal alar basal artery and nerve, is proposed in this article. The c...

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