Renguo Xie

Renguo Xie
Shanghai Jiao Tong University | SJTU · Department of Hand Surgery

MD, PhD

About

48
Publications
4,945
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892
Citations
Citations since 2016
7 Research Items
293 Citations
201620172018201920202021202201020304050
201620172018201920202021202201020304050
201620172018201920202021202201020304050
201620172018201920202021202201020304050

Publications

Publications (48)
Preprint
Full-text available
Background : The purpose of this study is to illustrate whether the electro-cauterization and transient tourniquet enhanced efficiency of local anesthesia with epinephrine in surgery of metacarpal fractures. Methods : Forty-four consecutive cases of metacarpal fractures with estimated major operative time more than 30 minutes were enrolled. Local a...
Article
Full-text available
Objective To evaluate the effectiveness and safety of allogeneic tendons for functional reconstruction of severe hand injuries. Methods From August 2007 to July 2014, we performed functional reconstruction with tendon allografts for severe hand injuries affecting two or more tendons. At the final follow-up, we assessed total active motion (TAM); p...
Preprint
Background To evaluate the effective and safety of reconstruction of flexor and extensor tendon in hand using allogenic tendon with 2- to 7.6-year fellow-up. Methods Between August 2007 and July 2014, we performed tendon allografts for 14 patients who suffered from severe hand injury with 2 or more tendon defects. 10 patients have been followed-up,...
Article
Full-text available
Objective This study was performed to evaluate two classic procedures guided by anatomic markers for harvesting the anterolateral thigh (ALT) flap: one began with an incision on the lateral side to identify perforators emerging from the muscle to the superficial tissue and to track the perforators upward to the upper stem vessel, and the other bega...
Article
Full-text available
Background: The purpose of this study was to compare outcomes between allograft reconstruction and hook plate fixation for acute dislocation of the acromioclavicular joint with a minimum 2-year follow-up. Methods: A retrospective comparative study of patients treated for acute acromioclavicular joint dislocation from February 2010 to December 20...
Article
Full-text available
Purpose: The aim of the study was to determine the correlation of patterns of distal radius fractures with the triangular fibrocartilage complex (TFCC) injures. Methods: Sixty adult patients (mean age, 43 years) with distal radius fractures were included. The patients were analyzed according to the fracture character at the time of injury and class...
Article
Purpose: To determine whether distal radioulnar joint (DRUJ) contact characteristics were altered in patients with malunited distal radius fractures. Methods: We obtained computed tomography scans at 5 positions of both wrists of 6 patients who had unilateral malunited distal radius fractures with dorsal angulation from 10° to 20° and ulnar vari...
Article
The need for surgical correction in patients with malunion with mild dorsal angulation after a distal radius fracture is controversial. We specifically investigated in vivo changes in the lengths of carpal ligaments in a group of patients with mild-degree dorsal angulation following a distal radial fracture. We obtained computed tomography scans of...
Article
Tendons are made of compact dense collagen fibers with only sparse cellularity and naturally low immunogenicity. Allogenic tendons may be preserved through deep freezing methods and retain excellent mechanical properties after revitalization. Allogenic tendons were used in 22 patients (30 tendons) for second-stage tendon reconstruction in the hand....
Article
To investigate the lengths and changes of selected ligaments stabilizing the thumb carpometacarpal (CMC) joint during thumb motion in vivo. We obtained serial computed tomography scans of the thumb CMC joints of 6 healthy volunteers during thumb flexion, abduction, and opposition. We reconstructed the 3-dimensional structures of the bones of the th...
Article
We aimed to investigate scaphoid and lunate movement in radial deviation and in slight and moderate ulnar deviation ranges in vivo. We obtained computed tomography scans of the right wrists from 20° radial deviation to 40° ulnar deviation in 20° increments in 6 volunteers. The 3-dimensional bony structures of the wrist, including the distal radius...
Article
To investigate three-dimensional kinematics of the superficial and deep portion of triangular fibrocartilage complex (TFCC) in different parts of the forearm rotation. Six wrists of 6 volunteers were used to obtain CT scans at different positions of the wrist. The wrists were scanned from 90 degrees of pronation to 90 degrees of supination at an in...
Article
To provide the basic knowledge of wrist joint for diagnosing of these morphological change in pathological condition by measuring the posteroanterior X-ray films of different types of distal radius fracture by AO classification. Eleven radiographic indexes were measured including following 7 new parameters of 83 cases of distal radius fracture: uln...
Article
The development of digital oedema, adhesion formation, and resistance to digital motion at days 0, 3, 5, 7, 9 and 14 after primary flexor tendon repairs using 102 long toes of 51 Leghorn chickens was studied. Oedema presented as tissue swelling from days 3 to 7, which peaked at day 3. After day 7, oedema was manifest as hardening of subcutaneous ti...
Article
We measured the resistance to tendon mobilisation within the first 5 days after primary repair of digital flexor tendons of chickens. Forty-six long toes of 23 chickens were assigned to six surgical groups and one unoperated control group. The tendons were partially lacerated and surgically repaired. The resistance to simulated active digital flexi...
Article
Full-text available
We report our experience of using the medial sural artery perforator flap in the reconstruction of soft tissue defects in the hand in seven cases with 1 to 2 year follow-up. The flap is harvested from the posteromedial aspect of the leg, just below the knee and superficial to the medial head of the gastrocnemius muscle. It is based on the perforato...
Article
Outcomes of flexor tendon repairs in the area covered by major pulleys are often unpredictable. We performed an in vivo study to investigate biomechanical effects of pulley incision, Kapandji pulley plasty, excision of one slip of the flexor digitorum superficialis, or closure of the incised pulley on function of the profundus tendons. Both long to...
Article
Recently the length of core suture purchase has been identified as a variable affecting the strength of tendon repairs. The influence of the length of the core suture purchase on the strength of multistrand locking and grasping suture repairs, however, has not been studied extensively in transversely lacerated tendons. We assessed the effects of th...
Article
It generally is considered that a certain distance should be maintained between the site of the tendon-suture junction and the laceration level of the tendon. In this study we assessed how the length of core suture purchase may affect the repair strength of transversely cut tendons using a 2-strand modified Kessler method and a 4-strand circle-lock...
Article
The area of the tendon within the locking suture configuration of the modified Pennington repair is an important determinant of eventual tendon strength. This 2-strand repair's loop configurations encompass a large cross-sectional area of the tendon. Many recently proposed repairs, however, consist of locks in a number of narrow sites on the tendon...
Article
Locking sutures have proven beneficial to the strength of the repaired tendon. In this study we investigated the effects of 3 locks in the tendon-suture junction and their effect on repair strength. Forty-seven fresh pig flexor tendons were transected and repaired using 4-strand repairs with 3 different configurations of locks in each tendon-suture...
Article
Background: The healing potential of tendon has been proved so far, however, further observation is needed on cellular proliferation and their behavior in different parts of flexor tendon. Objective: To study the proliferative ability and the differences of the behavior of the cells in different parts of flexor tendon cultured in vitro. Design: A r...
Article
Background: The experiments found that the cellular growth and proliferative ability in the central area of the tendon were poorer than those of epitenon cells and partial peripheral endotenon cells after tendon injury. However, how are the abilities of division and proliferation as well as the self-healing ability of the central cells in the tendo...
Article
We report a modification of the original Tang technique of tendon repair which uses fewer sutures and has fewer knots on the tendon surface. The modified method consists of six longitudinal and two horizontal strands that form an "M" configuration within the tendon and four dorsal longitudinal strands made with a single looped suture. Thirty-six fr...
Article
To evaluate the management of sheath after repair of double tendons in clean-cut injury or severe injury in zone II d. Forty-eight white leghorn chickens were divided into 4 groups. Both FDS and FDP tendons in zone II d of long toes were repaired with modified Kessler suture after tendon transection in group A (clean-cut tendon injury, sheath closu...
Article
Wrist biomechanics after luno-triquetral (LT) dissociation is important for understanding the clinical sequelae of the disease and for determining its treatment options. The LT interosseous ligament plays an important role in stabilizing the joint and damage to the ligament would be expected to significantly increase moment arms of tendon of the fl...
Article
We investigated the gap formation and ultimate strength, energy to failure, and patterns of failure of tendon repairs with the modified Savage, Lim, and Tang methods. Fifty-four fresh-frozen flexor digitorum profundus tendons were assigned to 3 groups and repaired with one of the previously mentioned methods. Nine tendons from each group were pulle...
Article
To study the healing ability of the central area tissue of flexor tendons after injury. Tendons of flexor digitorum profundus of the long toes from 8 white Leghorn hens were harvested in zone II. Tissues were cut in 4 mm segments and divided into the experimental group (the central area tissue of flexor tendons) and the control group (the tendon se...
Article
To summarize the application of reversed digital artery cross-finger flap with a compound skin pedicle in soft tissue defect of hand. From October 1997, 35 fingers of 30 cases, with soft tissue defect at the dorsal side of digital interphalangeal joint and at the fingertips, were repaired by the reversed artery cross-finger flap with a compound ski...
Article
Thirty-six fresh pig flexor tendons were repaired using either the modified Kessler method or the Tang method. Nine tendons from each group were tested in an Instron tensile testing machine with the tendons passing 90 degrees around a pulley. The other nine tendons from each group were pulled linearly by the testing machine. The 2 mm gap formation...
Article
We investigated changes of tensile strength in tendon repair according to tension direction. Thirty-six fresh-frozen digital flexor tendons were divided into 4 groups with 9 tendons each. The tendons were repaired by the modified Kessler method. Sutured tendons were pulled against pulleys at angles of 0 degrees, 30 degrees, 60 degrees, and 90 degre...
Article
The effect of the A3 pulley and adjacent sheath integrity on tendon function at the proximal interphalangeal (PIP) joint was investigated in 21 fingers in 7 fresh-frozen cadaver hands. Excursions of the flexor digitorum profundus (FDP) tendons were measured when the tendons were pulled to produce PIP joint flexion of 110 degrees from a resting posi...
Article
Immediate active mobilization of repaired tendons is thought to be the most effective way to restore function of injured flexor tendons. Sixty human flexor digitorum profundus tendons were used to evaluate techniques for active tendon motion. The tendons were divided equally into six groups, and each group was assigned to one of the following techn...
Article
This study was designed to biomechanically compare Tang's multiple looped locking techniques with various suture techniques for flexor tendon repair in the hand. Fifty flexor digitorum profondus tendons taken from pig toes were used as models; The tendons were transected in the middle part of zone 2 defined as the area beneath bifurcation of the fl...

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