Division Of Ligament Research Articles

Robotic-assisted left lower-lobe pulmonary lobectomy: Eleven steps.

Robotic-assisted left lower-lobe pulmonary lobectomy: Eleven steps.

Robotic Radical Antegrade Modular Pancreatosplenectomy Using the Supracolic Anterior Superior Mesenteric Artery Approach

BackgroundRadical antegrade modular pancreatosplenectomy (RAMPS) is the standardized approach in open pancreatic resection for pancreatic body and tail cancer. However, few studies have described regarding robotic RAMPS for pancreatic cancer. We herein present our techniques of robotic RAMPS using the supracolic anterior superior mesenteric artery (SMA) approach with the ventral view. MethodsThe patient was a 75-year-old female with a diagnosis of pancreatic body cancer. Following neoadjuvant chemotherapy with gemcitabine plus nab-paclitaxel, robotic RAMPS was performed. Our techniques of robotic RAMPS include four steps: (1) gastrocolic ligament division, (2) dissection of superior and inferior border of the pancreas, (3) division of the pancreas, and (4) retroperitoneal dissection. ResultsThe operative time was 251 min with an estimated blood loss of 10 mL. The uneventful postoperative course was observed. The final pathology confirmed R0 surgical resection. ConclusionsRobotic RAMPS using the supracolic anterior SMA approach is safe and feasible for pancreatic body and tail cancer. Standardization and precise anatomical knowledge are key elements of performing robotic RAMPS.

Vein step. Description: Pulmonary ligament division. The common basal vein is dissected, encircled with a tape and divided using an angled vascular endostapler.

Vein step. Description: Pulmonary ligament division. The common basal vein is dissected, encircled with a tape and divided using an angled vascular endostapler.

Is the Dorsal Fiber-Splitting Approach to the Wrist Safe? A Kinematic Analysis and Introduction of the “Window” Approach

To compare the kinematic effects of the dorsal fiber-splitting approach for scapholunate ligament repair to a dorsal "window" approach that spares all ligaments. We randomized 24 fresh-frozen paired cadaveric forearms to either the dorsal fiber-splitting capsulotomy approach (FSC) or the dorsal window approach (window) following scapholunate interosseous ligament(SLIL) division. Loaded fluoroscopic radiographs were obtained after each of the 4 testing conditions following cyclic loading (200 cycles; 71 N): (1) intact SLIL, (2) SLIL-division, (3) surgical approach, and (4) closure. FSC specimens were randomly allocated to 2 subgroups for closure with either a suture anchor (n= 6) or a simple running suture closure (n= 6). Radiographic parameter measurements included the scapholunate gap, radiolunate angle, scapholunate angle, and dorsal scaphoid translation. Following the FSC, there were significant alterations in all radiographic parameters when compared with the intact and SLIL-division conditions. The window approach did not result in significant changes in any radiographic parameter. When compared to the window approach, all radiographic parameters of the FSC approach were significantly altered. Following closure with suture anchors in the FSC group, radiographic parameters improved, whereas with standard closure they failed to do so. Despite anchor closure, dorsal scaphoid translation, radiolunate angle, and scapholunate angle all remained elevated compared with scapholunate-divided wrists. The FSC produced significant changes in carpal posture under load, including scapholunate diastasis, dorsal intercalated segment instability, and dorsal scaphoid translation in SLIL-deficient wrists. The window approach preserved the critical dorsal ligament stabilizers and did not produce changes in carpal posture. The FSC may create iatrogenic changes in carpal posture that cannot be fully corrected with standard or anchor closure. The window approach does not alter carpal posture and should be considered when performing surgical procedures on the scaphoid or lunate.

The impact of dissection of station 9 on survival and the necessity of pulmonary ligament division during upper lobectomy for lung cancer

Background We conducted this study to investigate the need for dissection of station 9 lymph nodes during upper lobectomy for non-small-cell lung cancer (NSCLC) and to find out the operative results of inferior pulmonary ligament division. Methods A total of 840 patients who underwent upper lobectomy for NSCLC between January 2007 and June 2020 were evaluated retrospectively. The patients were separated into two groups – those having undergone lymph node dissection of station 9 and inferior pulmonary ligament dissection (Group I) and those who did not (Group II). In these groups, the prognostic value of station 9 lymph nodes and postoperative effects (drainage time, prolonged air leak, dead space and length of hospital stay) of ligament division or preservation were analyzed. Results The number of patients with station 9 lymph node metastasis was only one (0.1%) and that was multi-station pN2 disease. Station 9 lymph nodes were found in 675 (80.4%) patients, while 22 (2.6%) patients had no lymph nodes in the dissected material. In the other 143 (17%) patients, the inferior pulmonary ligament and station 9 were not dissected. While 5-year survival was 64.9% in 697 patients of Group I, it was 61.3% in 143 patients of Group II (p = 0.56). There was no statistically significant difference between the groups in postoperative effects of ligament division or preservation. Conclusions In upper lobectomies, status of station 9 does not have a significant impact on patients' survival and lymph node staging. Additionally, preservation or division of the inferior pulmonary ligament has no significant advantage or disadvantage.

Performance Assessment for Total Laparoscopic Hysterectomy in the Operating Room: Validity Evidence of a Procedure-specific Rating Scale

The technical conduct of total laparoscopic hysterectomy (LH) is critical to surgical outcomes. This study explored the validity evidence of an objective scale specific to the assessment of technical skills (H-OSATS) for 7 tasks of an LH with salpingo-oophorectomy procedure performed in the operating room. Observational cohort study. Two academic hospitals in Marseille and Montpellier, France. Three groups of operators (novice, intermediate, and experienced surgeons) were video recorded during their live performances of LH on a simple case. For each group, a dozen unedited videos were obtained for the following tasks: division of the round ligament, division of the infundibulopelvic ligament, creation of the bladder flap, opening of the posterior peritoneum, division of the uterine vessels, colpotomy, and closure of the vault. Two qualified raters blindly assessed each video using the H-OSATS rating scale. Inter-rater reliability and test-retest reliability were calculated as measures of internal structure. In a separate round of evaluations, the raters provided a global competent/noncompetent decision for each performance. As a measure of consequential validity, a pass/fail score was set for each task using the contrasting group method. Three tasks (creation of the bladder flap, colpotomy, and closure of the vault) displayed sound validity evidence: a meaningful total score difference among the 3 groups of experience as well as between the intermediate and experienced surgeons, reliability outcomes of >0.7, and a pass/fail score with a theoretical false-positive rate of <10%. The validity evidence of the H-OSATS rating scale differed for separate evaluations of the 7 tasks. Three tasks (i.e., creation of the bladder flap, colpotomy, and closure of the vault) revealed sound validity evidence, including at the level of the attending surgeon, whereas other tasks were more consistent with low-stakes formative evaluation standards.

Robotic-assisted ureteral reimplantation and psoas hitch after ureteral injury during cesarean section.

Ureteral injury during gynecological surgery can be managed in a variety of ways, from endoscopic stent placement to ureteroneocystotomy with accompanying psoas hitch and/or Boari flap. The majority of these occur during hysterectomy; therefore, gynecologic surgeons may not be as familiar with repair in women with intact uteri. Herein we present our technique for delayed robotic-assisted ureteral reimplant and psoas hitch in a woman with a ureteral injury sustained during cesarean section, which initially presented as a uretero-cervical fistula. In this video, we describe the evaluation and surgical management of a patient with delayed recognition of a left distal ureteral injury sustained during cesarean section. We present necessary modifications to robotic-assisted laparoscopic ureteroneocystostomy and psoas hitch to accommodate an intact uterus including the need for uterine manipulation, division of the round ligament, bladder mobilization from the lower uterine segment and development of the retropubic space, reimplantation steps, and psoas hitch. Simple modifications to a traditional technique of robotic-assisted ureteroneocystotomy effectively compensate for the presence of a uterus. Obstetricians should maintain a high index of suspicion for ureteral injury in women with new-onset severe urinary leakage post-cesarean section.

Ectopic gall bladder: A case report

Ectopic gall bladder under the left lobe of liver is a rare congenital anomaly of the position of gall bladder, which is mostly detected during surgery and causes technical difficulty at the time of operation. We operated a 64-year-old male who presented with gall stone disease and pre-operative ultrasound did not report any abnormality in position. On laparoscopy, it was found to be attached on the left side of falciform ligament under segment III. It was a true ectopic gall bladder without situs inversus. Early division of the falciform ligament and a careful and complete dissection of the gall bladder are advocated before clipping the cystic artery and duct to avoid complications. The present case report discusses about this rare anomaly and the available literature on the subject.

Flip the Liver for Segment 7 Resection

The hepatic segment 7 is considered the most difficult segment to treat due to its anatomical location close to the diaphragm and adjacent to the ribs making it difficult to expose and access during laparoscopic liver surgery (Figure 1). Some authors proposed a transthoracic and transdiaphragmatic approach or intercostal port placement. For a transabdominal approach to Segment 7, we herein describe the “Flip the Liver” maneuver. Four steps are mandatory for success of this trick: i) Thorough mobilization of the right hemiliver including division of the round ligament and dissection of the retroperitoneal reflection ii) followed by pulling the liver caudally towards the patients left leg grasping the falciform ligament or the gallbladder. iii) Ensure anticlockwise rotation and caudalisation of segment 7 and iv) finally check that the Pringle tape exits the abdominal wall through a port at a location permitting to pull the liver in the same caudal direction on the left side. The resulting localisation of segment 7 towards former segment 6 facilitates any liver resection in this segment. “Topographically” segment 7 becomes segment 6, “a posterior segment becomes an anterior segment “(Figure 1). Moreover, the posterior part of segment 7 becomes more accessible for the subxyphoidal port and a resection, preferably using the diamond technique, can be applied safely.

Dorsal Bone–Ligament–Bone Reconstruction of Chronic Lunotriquetral Instability: Biomechanical Testing

PurposeLunotriquetral (LT) instability is uncommon and few biomechanical analyses of the condition exist. For chronic LT instabilities, arthrodesis has long been the treatment of choice but has a high risk for nonunion. The aim of this study was to evaluate an alternative treatment option using a bone–ligament–bone graft in a cadaver model and compare it with a conventional arthrodesis.MethodsWe used 10 cadaveric forearms with different loading positions. We employed computed tomography scans to evaluate the LT joint. Scans were performed with the joint intact after we sectioned the dorsal LT ligament and the palmar LT ligament. The joints were then reconstructed using a bone–ligament–bone graft from the capitate–hamate joint as well as with a compression screw simulating arthrodesis. The joints were then rescanned and 3-dimensional analysis was performed using specialized 3-dimensional software.ResultsSectioning the dorsal part of LT ligament had little effect on kinematics; however, additional division of the palmar LT ligament resulted in increased mobility. Restoration of physiological kinematics could be partially achieved after bone–ligament–bone reconstruction. Arthrodesis showed increased intercarpal motion in the adjacent scapholunate and lunocapitate joints compared with the bone–ligament–bone reconstruction.ConclusionsThe bone–ligament–bone reconstruction displayed physiologic carpal kinematics in the adjacent joints compared with arthrodesis. It provided enough stability but still some mobility in the LT joint to be able to use it as a treatment modality for chronic LT instability without the risk for nonunion. Decreased intercarpal motion was not statistically significant although there appeared to be a trend toward it.Type of study/level of evidenceTherapeutic IV.

The Critical Portions of Carpal Tunnel Surgery: A Comparison Between Opinions of Surgeons and the General Public

Attending surgeons must participate in critical and key portions of procedures and otherwise be immediately available. However, surgeon-defined standards of the critical and key portions of surgery have been questioned, potentially affecting trainee graduated responsibility. This study compares the opinions of surgeons and the general public regarding what constitutes the critical portions of carpal tunnel release (CTR). A survey was devised inquiring about the appropriateness of surgical trainee execution of each step of CTR. Surgeons who perform CTR were queried (n= 112) and 32 (29%) responded. The survey was modified to compare responses from a sample of 184 nonmedical respondents (NMRs). The NMRs were excluded if they indicated having a career in health care. Of the surgeon respondents, 94% (n= 30) had completed hand fellowship training, 53% (n= 17) declared themselves academic or affiliated with academia, and 53% (n= 17) utilized concurrent operating rooms. The NMR average age was 35.3 ± 10.3 years, 40% were female (n= 73), and they represented various regions of the United States including an assortment of socioeconomic and ethnic groups. Surgeons demonstrated significantly more hesitation with trainees performing surgical steps. Academic surgeons were significantly more comfortable having trainees performing surgical steps than nonacademic surgeons. Critical portions of CTR as agreed upon by surgeons and NMRs included incision, dissection, transverse carpal ligament division, and inspection of the median nerve for injury/complete release. Surgeons are significantly less comfortable with trainee performance of CTR steps than the general public. Surgeons who regularly work with trainees are more accepting of trainee involvement than those who do not. Understanding the opinions of surgeons as well as NMRs with respect to surgical trainee participation in the operating room is important to optimize the informed consent process as well as influence hospital policies that affect graduated surgical trainee autonomy.

Assessment of incidence of recurrence and constipation in patients of rectal prolapse undergoing rectal mobilization only with division of lateral stalks

Background: Rectal prolapse is a pelvic floor disorder that can occur in men and women of all ages. It results in pain, bleeding per rectum, seepage, diarrhoea or constipation and a disabled quality of life. With the advent of twentieth century, perineal operative procedures have become more common. Perineal procedures though have lower morbidities but have higher recurrence rate and high incidence of post-operative constipation. Novel abdominal approaches to rectal prolapse repair also became common during the first half of this century. Numerous types of surgical procedures have been attempted. Most techniques developed till now have some advantages and some short comings. CT Speakman and Pollen et al have shown in their studies that division of lateral ligaments caused new onset constipation and they attributed this effect to denervation of rectum. As the issue of recurrence and post-operative constipation remained unsettled.Methods: This was an observational study to assess the incidence of recurrence and post-operative constipation in patients of rectal prolapse. In well selected patients, we performed complete rectal mobilization with division of lateral ligaments. We assessed the patients on the basis of Clevland clinical constipation scoring system.Results: Out of 25 patients, 4 patients developed constipation, 2 had mild and 2 had moderate constipation and 2 patients had recurrence. Patients were kept under six monthly follow-up till a period of eighteen months.Conclusions: Only rectal mobilization with division of lateral ligaments can be a good surgical option in patients of rectal prolapse not having severe constipation.

Multiple recurrences of mesenteric narrowing following Ladd procedure

Abstract We describe a case of a six-month old male presenting with recurrent midgut volvulus following two previous Ladd procedures. Despite widening of the mesenteric base during each of the previous operations, the base again appeared narrowed, facilitating the development of a recurrent midgut volvulus. The patient underwent a third Ladd procedure with emphasis placed on widening of the mesenteric base, including division of the gastro-colic ligament to further separate the colon from the duodenum with the intent of preventing any future narrowing and subsequent intestinal volvulus.

An Incision-less Ultrasound-guided Carpal Tunnel Release Technique.

Ultrasound guidance in the operative treatment of carpal tunnel syndrome is gaining in popularity as it noninvasively provides the surgeon with a real-time high-resolution overview of anatomic structures. A new incision-less approach to achieve a division of the transverse carpal ligament has been developed that combines ultrasound guidance with cannulated needles and a thread. Conceptually, an abrasive thread is looped percutaneously around the ligament while avoiding injury to neurovascular structures, the palmar aponeurosis, and skin. The thread is positioned using 2 puncture sites and a contoured Tuohy needle under ultrasound visualization. With a minimal injury to surrounding structures, this approach is designed to minimize recovery time and decrease pillar pain. This article will provide a step-by-step overview of the technique and includes a review of clinical outcomes published so far.

Laparoscopic Total Extraperitoneal Groin Hernia Repair in Females: Comparison of Outcomes Between Preservation or Division of the Uterine Round Ligament.

Background: Laparoscopic repair has been recommended as the method-of-choice of groin hernia repair among women. Whether the round ligament of uterus should be divided to facilitate mesh placement remains controversial. This study aims to review the outcomes of laparoscopic total extraperitoneal (TEP) groin hernia repair in women and to evaluate the impact of division of round ligament. Methods: Consecutive female patients with inguinal or femoral hernias who underwent elective laparoscopic TEP repair at a single institution from 2006 to 2017 were included for retrospective analysis. Primary outcomes were postoperative pain, genital prolapse, and recurrence. Outcomes of patients who had the round ligament divided were further compared with those with round ligament preserved and multivariable adjusted analysis was performed. Results: Sixty-eight patients with a total of 77 TEP repairs were included in the 12-year study period. The mean age was 45 ± 16 years old. Incidental femoral hernia was identified in 4 patients (5.9%). There was 1 (1.3%) recurrence upon mean follow-up of 42.9 ± 37.3 months. The round ligament was divided in 67.5% of patients, and upon multivariable adjusted analysis, there were no statistically significant differences in outcomes in terms of chronic pain (odds ratio [OR] = 2.210, P = .357), paresthesia (OR = 0.241, P = .149), and genital prolapse (OR = 0.327, P = .415) when compared with patients with preserved round ligament. Conclusion: Laparoscopic groin hernia repair in women is associated with low recurrence. Division of round ligament intraoperatively facilitates mesh placement and has minimal impact on clinical outcomes.

Craniocervical Junction Vertebral Artery Dural Arteriovenous Fistula With Cranial and Spinal Venous Reflux: 2-Dimensional Operative Video.

Dural arteriovenous fistulae at the craniocervical junction are rare. When present together with spinal and cranial venous reflux they can have an aggressive natural history with hemorrhage or progressive myelopathy from venous congestion. In this operative video we demonstrate key steps in the surgical ligation of a dural arteriovenous fistula supplied by meningeal branches of the V4 segment of the vertebral artery. Informed consent was obtained. The patient was positioned prone with chin tucked. Utilizing a midline suboccipital craniotomy and removal of the arch of C1, the vertebral artery was identified at its V4 segment at it transitions from extra to intradural. The video illustrates how a midline approach can be used to access this lesion and a far lateral approach is not required to access the vertebral artery and its dural branches at the craniocervical junction. Division of the denticulate ligaments and mobilization of the spinal accessory nerve allows visualization of the proximal portion of the draining vein. Important anatomy in this region is demonstrated. The critical use of indocyanine green (ICG) dye is demonstrated as the first 2 clip applications were not proximal enough to obliterate the proximal draining vein and persistent early venous reflux was still seen on ICG. The importance of access to and obliteration of the proximal draining vein is shown. An intraoperative ICG and postoperative angiogram demonstrates complete occlusion of the dural arteriovenous fistula. In this case the patient had minor sensory deficits postoperatively which were resolved by 6 wk postoperatively.

Percutaneous Fixation Of Scaphoid Non-union. A systematic Review

The primary risk factor for nonunion of the scaphoid is displacement/instability, but delayed or missed diagnosis, inadequate treatment, fracture location, and blood supply are also risk factors. Untreated nonunion leads to degenerative wrist arthritis, the so-called ‘scaphoid nonunion advanced collapse’ wrist. Treatment options vary from percutaneous fixation to open reduction and internal fixation with vascularized or nonvascularized bone grafting to salvage procedures involving excision and/or arthrodesis of carpals. Percutaneous fixation of fractures of the scaphoid is well documented in the acute setting by both dorsal and volar methods. What is not commonly discussed is the use of this method for delayed unions and nonunions of the scaphoid. These techniques can avoid the morbidity of an open approach and division of the carpal ligaments. Seven studies were collected from Febuary to July 2018 on percutaneous fixation of scaphoid nonunion from PubMed, Medscape, and Google Scholar and also from materials available in the Internet covering the years between 2000 and 2017. They were included in the review, as they were deemed eligible by fulfilling the inclusion criteria. All these studies were carried out on humans and discussed the results of percutaneous fixation of scaphoid nonunion and were based on sufficient number of patients and reliable results. Healing was achieved in most cases of scaphoid nonunion treated by this method, provided that there was a good selection of cases appropriate for treatment by percutaneous fixation. Percutaneous fixation in appropriate patients provides satisfactory results with high union and minimal complication rates in scaphoid nonunions. Percutaneous screw fixation is indicated in early scaphoid nonunions without substantial cystic bone resorption, without appreciable collapse of the scaphoid architecture, and without clear avascular necrosis of the proximal pole. Moreover, the scaphoid should be with an intact external cartilaginous shell and normal scapholunate angle without a humpback deformity.

Intravascular ultrasound-guided laparoscopic division of the median arcuate ligament.

Median arcuate ligament syndrome is a rare and poorly understood condition that can have a significant impact on the quality of life of patients. Diagnosis is often difficult and delayed because of the need to exclude other pathologic processes. Treatment strategies traditionally involve open or laparoscopic division of the median arcuate ligament, with or without vascular reconstruction. This report portrays a case of median arcuate ligament syndrome with compression of two visceral arteries and distal embolic complications. A novel hybrid technique is described using intravascular ultrasound technology to aid in laparoscopic median arcuate ligament division. This allowed real-time intravascular visualization of the compressive segment, guided release of the ligament fibers, and demonstrated confirmation of decompression.

Dunbar syndrome as a cause of chronic abdominal pain in a 24-year-old female

External compression of the celiac artery by the median arcuate ligament is referred to as Dunbar syndrome, which is an eponym for celiac axis syndrome or median arcuate ligament syndrome. It is correlated with the archetypal triad of postprandial abdominal pain, weight loss of greater than 20 pounds, and an abdominal bruit on auscultation. This is often accompanied by epigastric tenderness, vomiting, and nausea. Given its lack of symptomatic specificity, Dunbar syndrome is a diagnosis of exclusion for unexplained episodic abdominal discomfort. Here, we present a unique case of a 24-year-old woman who experienced several months of chronic abdominal distress and an extensive workup prior to being diagnosed with Dunbar syndrome. The diagnosis was made via cross-sectional abdominal imaging and duplex ultrasound with respiratory maneuvers, which showed downward displacement of the celiac trunk, post-stenotic dilatation, and increased flow velocity on expiration. She underwent successful laparoscopic division of the median arcuate ligament which greatly alleviated her pain.

Endoscopic Versus Open Carpal Tunnel Release.

Carpal tunnel syndrome is the most common compressive neuropathy encountered by hand and upper extremity surgeons. The predominant presentation includes symptomatic paresthesias in the median nerve distribution of the affected hand, frequently causing nocturnal disturbances. Surgical treatment requires division of the transverse carpal ligament, which can be performed through open and endoscopic means. Endoscopic techniques have evolved significantly since they were first introduced in the late 1980s. This manuscript reviews the literature to summarize the current state of carpal tunnel surgery. While endoscopic techniques have demonstrated superior early functional outcomes and a more rapid recovery, there are lingering concerns over the potential for nerve, vessel, and tendon injuries. These concerns have not been validated by the hand surgery literature, which ascribes similar rates of complications for both open and endoscopic surgical approaches. Moreover, patients report greater satisfaction with endoscopic surgical approaches compared with open techniques. In summary, the debate between proponents of open versus endoscopic carpal tunnel surgery continues. While surgeons who employ endoscopic techniques appear to be in the minority, there is a plethora of evidence to suggest that both approaches are comparably safe and equally effective.