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1.

Objective

To investigate the methods and clinical efficacy of reconstruction of chest defects with titanium sternal fixation system after the surgical resection of sternal tumors.

Methods

A total of 6 patients with sternal tumor who were diagnosed and underwent resection and repair of the chest wall defects by titanium plates system, from 2017.3 to 2017.11 in our hospital were reviewed. Their pathological types, surgical reconstruction methods, follow-up results were analyzed.

Results

Six cases of sternal tumor were completely resected and the sternums were reconstructed with titanium sternal fixation system. There was no operative death, postoperative chest wall deformity, abnormal breathing or complications of respiratory circulation. After 3 to 10?months of follow-up, there was no loose screw or plate exposure. Not only the thoracic appearances were good, but patients’ satisfaction was high.

Conclusions

Surgical resection is the best treatment for sternal tumors, no matter it is benign or malignant. Titanium sternal fixation system combine with other soft materials can reconstruct the chest wall well after resection, and this technique is efficient as well as easy to learn.
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2.

Purpose

We present a surgical technique for chest wall reconstruction using custom-designed titanium implants developed for two female patients to provide both chest wall symmetry and adequate stability for staged breast reconstruction.

Methods

A retrospective review was performed for two adolescent female patients with large chest wall defects who underwent the described technique. The etiology of the chest wall deficiency was secondary to Poland’s syndrome in one patient, and secondary to surgical resection of osteosarcoma in the other patient. For each patient, a fine-cut computed tomography scan was obtained to assist with implant design. After fabrication of the prosthesis, reconstruction was performed though a curvilinear thoracotomy approach with attachment of the implant to the adjacent ribs and sternum. Wound closure was obtained with use of synthetic graft material, local soft tissue procedures, and flap procedures as necessary.

Results

The two patients were followed post-operatively for 35 and 38 months, respectively. No intra-operative or post-operative complications were identified. Mild scoliosis that had developed in the patient following chest wall resection for osteosarcoma did not demonstrate any further progression following reconstruction.

Conclusions

We conclude that this technique was successful at providing a stable chest wall reconstruction with satisfactory cosmetic results in our patients.
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3.

Introduction

Reconstruction of anterior abdominal wall after necrotizing abdominal wall infections is a challenge.

Material and methods

A 35-year-old lady presented with 20 × 18 cm sized defect of the anterior abdominal wall following fungal necrotizing fascitis. The defect was covered by an overlay prolene mesh and the soft tissue deficit was corrected by pre-expanded epigastric flap based on the superior epigastric artery.

Conclusion

A concerted multi-specialty effort is needed to correct these defects.
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4.

Purpose

Syndromes with focal overgrowth are rare and diagnosis is difficult because manifestations are highly variable and symptoms overlap between syndromes. Diagnosis depends on clinical history, physical examination, and radiologic and histologic findings. This report describes a case of focal overgrowth of the left seventh rib and half of the adjacent thoracic vertebra, with overlying infiltrating lipoma.

Methods

A 13-year-old boy presented with an asymptomatic chest wall mass caused by enlargement of the seventh rib and an overlying soft-tissue mass accompanied by enlargement of half of the seventh thoracic vertebra. MRI showed infiltration of lipomatous tissue in the muscles, but no interfascicular accumulation of adipose tissue in the thoracic spinal nerve.

Results

A similar case was presented in 1985 but without MR imaging.

Conclusion

We report on a second case of focal overgrowth of a rib and half of the adjacent vertebra, and overlying lipoma. In addition to the first case, we present MR images demonstrating infiltration of the adipose tissue.
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5.

Introduction and hypothesis

The pelvic organ prolapse quantification system (POP-Q) is the most commonly used method to quantify the extent of pelvic organ prolapse. However, it does not include assessment of anterior vaginal wall length (AVL). The objectives of this study were to characterize AVL and distance to the sacrospinous ligament (SSL), and to examine associations between total vaginal length (TVL), AVL, body mass index (BMI) and age.

Methods

This was a retrospective chart review of 139 patients with cervix in situ presenting during an 8-month period for initial evaluation to the University of Rochester Medical Center Urogynecology practice. AVL, TVL and distance to the SSL were measured in addition to POP-Q measurements. Age, height, BMI, presenting complaint and prolapse stage were obtained from medical records. Simple linear regression was used to assess the relationship between TVL and AVL. Multivariate regression was used to test independent variables.

Results

The mean?±?SD TVL, AVL and distance to the SSL were 9.4?±?1.2 cm, 7.4?±?0.9 cm and 7.2?±?0.9 cm, respectively. All three measurements approached a normal distribution. TVL decreased slightly with age. No association was found between vaginal length and BMI or parity.

Conclusions

AVL is a useful measurement that may aid in surgical decision-making. Providers should consider using AVL when planning sacrospinous hysteropexy.
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6.

Background

Primary chest wall tumours are rare. We report our experience of primary chest wall neoplasms, their resection and reconstruction treated at our centre.

Methods

We reviewed a prospectively collected data from August 2013 to December 2014. Data included the mode of clinical presentation, imaging, biopsy, type of surgical resection and reconstruction, complications, morbidity and mortality. Recurrences if any and survival outcomes were recorded.

Results

A total of 14 patients were reviewed (M/F ratio was 9:5) with a median age of 35.5 years. Palpable mass (78.5 %) was a common presenting symptom. All patients underwent surgical resection, and reconstruction was required in 11 patients (78.5 %), with bone cement, mesh or greater omentum. Overall, 35.7 % (5 out of 14) received neoadjuvant therapy for downstaging and 14.2 % (2 out of 14) received adjuvant radiotherapy for positive margins. Early post-operative complications were seen in eight patients (57.1 %), and there was no in-hospital mortality. Factors that effected survival were resection margins and type of pathology.

Conclusion

Primary chest wall neoplasms need surgical resection. Multidisciplinary approach is necessary. The extent of tumour resection should not be compromised because of concerns over the ability to reconstruct large and complex defects. Prosthetic reconstruction is a safe and effective surgical procedure for major chest wall defects.
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7.

Objectives

Correction of calcaneal malalignment as part of a hindfoot correction procedure.

Indications

Varus and valgus malalignment of the calcaneus, increased calcaneal pitch.

Contraindications

Osteoarthritis of the subtalar joint. Fixed and symptomatic deformities of the subtalar joint.

Surgical technique

After having identified and marked the desired planes of the osteotomy under image intensifier, a percutaneous v?shaped calcaneal osteotomy is performed. The osteotomy allows 3?dimensional correction of the calcaneus by defining the planes of the osteotomy. The procedure allows correction of varus and valgus deformities, as well as a change of the calcaneal pitch. The osteotomy is fixed by percutaneous screws.

Postoperative management

Postoperative care includes a 6-week period of partial weight bearing with 10 kg. The ankle joint should be mobilized. After x?ray control of sufficient bone healing, weight bearing can be increased stepwise over another 4?week period up to full body weight. A full length orthotic is recommended for at least 12 months with heel cup and good medial support.

Results

The procedure allows correction of calcaneal deformities with preservation of soft tissue, normally as part of a hindfoot correction, e.?g., in posterior tibial tendon insufficiency, varus deformities or total ankle replacement. In the literature and in our patients, the rate of injuries of the neurovascular bundle was not increased compared to open surgery. The average calcaneal shift was 1 cm, when necessary an additional correction was realized by rotation of the tuber calcanei.
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8.

Background

Intra-thymic bronchogenic cysts are a rare entity but should be considered in the differential of all non-invasive thymic masses.

Case presentation

We describe a 50-year-old patient who was found to have an incidental thymic mass on computer tomography of the chest. Non-invasive thymoma was suspected and a thoracoscopic thymectomy was performed. Final pathology revealed a bronchogenic cyst.

Conclusion

Intra-thymic bronchogenic cysts are extremely rare tumors of the anterior mediastinum. It should be considered in differential diagnosis of anterior mediastinal masses.
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9.

Background

Accurate anatomical landmarks to locate the thoracodorsal nerve are important in axillary clearance surgery.

Methods

Twenty axillary dissections were carried out on ten preserved Sri Lankan cadavers. Cadavers were positioned dorsal decubitus with upper limbs abducted to 900. An incision was made in the upper part of the anterior axillary line. The lateral thoracic vein was identified and traced bi-directionally. The anatomical location of the thoracodorsal nerve was studied in relation to the lateral border of pectoralis minor and from a point along the lateral thoracic vein, 2 cm inferior to its confluence with the axillary vein.

Results

The lateral thoracic vein was invariably present in all the specimens. All the lateral thoracic veins passed lateral to the lateral border of pectoralis minor except in one specimen, where the lateral thoracic vein passed along its lateral border. The thoracodorsal nerve was consistently present posterolateral to the lateral thoracic vein. The mean distance to the lateral thoracic vein from the lateral border of pectoralis minor was 28.7?±?12.6 mm. The mean horizontal distance, depth, and displacement, from a point along the lateral thoracic vein, 2 cm inferior to its confluence with the axillary vein to the thoracodorsal nerve were 14.5?±?8.9 mm, 19.7?±?7.3 mm and 25?±?5 mm respectively. The thoracodorsal nerve was found in a posterolateral direction, at a 540?±?120 angle to the horizontal plane, 95% of the time.

Conclusions

The lateral thoracic vein is an accurate guide to the thoracodorsal nerve. We recommend exploring for the thoracodorsal nerve from a point 2 cm from the confluence of the lateral thoracic vein and the axillary vein for a distance of 25?±?5 mm in a posterolateral direction, at a 540?±?120 angle to the horizontal plane.
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10.

Background

The totally thoracoscopic procedure for mitral valve (MV) disease is a minimally invasive method. We investigated the procedure’s feasibility, safety and effectiveness when it was performed by an experienced operator.

Methods

We retrospectively analysed 53 consecutive patients with MV disease treated between December 2014 and April 2017 by minimally invasive procedures. The procedures were performed on femoral artery-vein bypass through three 2–4?cm incisions, with one additional penetrating point on the right chest wall under totally thoracoscopic visual guidance and surveillance of transoesophageal echocardiography.

Results

Two patients who underwent intraoperative conversion to sternotomy were excluded due to indivisible pleural cavity adhesion. Of the others (38 female patients, average age, 49?±?14?years, left ventricular ejection fraction, 59?±?7%), 34 received MV replacement for rheumatic mitral lesions, which was redone for one patient after the discovery of serious paravalvular leakage, 17 received MV repair for mitral regurgitation (with 4 secondary to atrial septum defect, 2 diagnosed with left atrial myxoma, and 2 redone for mitral valve replacement due to repair failure), 28 received additional tricuspid valvuloplasty, and one patient received a Warden procedure. The cardiopulmonary bypass and aortic cross clamp times were 144?±?39?min and 80?±?22?min, respectively. Postoperational chest tube drainage in the first 48?h was 346?±?316?ml. The ventilation time and intensive care unit stay length were 11?±?11?h and 23?±?2?h, respectively. One patient died of disseminated intravascular coagulation and prosthesis thrombosis with fear of anticoagulation-related bleeding.

Conclusions

The totally thoracoscopic procedure on mitral valves by an experienced surgeon is technically feasible, safe, effective and worthy of widespread adoption in clinical practice.
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11.

Introduction

Our study aims to compare the anterior and lateral approaches for needle thoracostomy (NT) and determine the adequacy of catheter lengths used for NT in Asian trauma patients based on computed tomography chest wall measurements.

Methodology

A retrospective review of chest computed tomography scans of 583 Singaporean trauma patients during period of 2011–2015 was conducted. Four measurements of chest wall thickness (CWT) were taken at the second intercostal space, midclavicular line and fifth intercostal space, midaxillary line bilaterally. Measurements were from the superficial skin layer of the chest wall to the pleural space. Successful NT was defined radiologically as CWT?≤?5 cm.

Results

There were 593 eligible subjects. Mean age was 49.1 years (49.1?±?21.0). Majority were males (77.0%) and Chinese (70.2%). Mean CWT for the anterior approach was 4.04 cm (CI 3.19–4.68) on the left and 3.92 cm (CI 3.17–4.63) on the right. Mean CWT for the lateral approach was 3.52 cm (CI 2.52–4.36) on the left, and 3.62 cm (CI 3.65–4.48) on the right. Mean CWT was shorter in the lateral approach by 0.52 cm on the left and 0.30 cm on the right (p?=?0.001). With a 5.0 cm catheter in the anterior approach, 925 out of 1186 sites (78.8%) will have adequate NT as compared to 98.2% with a 7.0 cm catheter. Similarly, in the lateral approach 1046 out of 1186 (88.2%) will have adequate NT as compared to 98.5% with a 7.0 cm catheter. Obese subjects had significantly higher mean CWT in both approaches (p?=?0.001). There was moderate correlation between BMI and CWT in the anterior approach, r 2?=?0.529 as compared to the lateral approach, r 2?=?0.244.

Conclusion

Needle decompression using the lateral approach or a longer catheter is more likely to succeed in Asian trauma patients. A high BMI is an independent predictor of failure of NT, especially for the anterior as compared to lateral approach.
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12.

Introduction

We evaluated the usefulness of xeno-Biosheets, an in-body tissue architecture-induced bovine collagenous sheet, as repair materials for abdominal wall defects in a beagle model.

Materials and Methods

Biosheets were prepared by embedding cylindrical molds into subcutaneous pouches of three Holstein cows for 2–3 months and stored in 70% ethanol. The Biosheets were 0.5 mm thick, cut into 2 cm?×?2 cm, and implanted to replace defects of the same size in the abdominal wall of nine beagles. The abdominal wall and Biosheets were harvested and subjected to histological evaluation at 1, 3, and 5 months after implantation (n?=?3 each).

Results

The Biosheet and bovine pericardiac patch (control) were not stressed during the suture operation and did not split, and patches were easily implanted on defective wounds. After implantation, the patch did not fall off and was not perforated, and healing was observed nacroscopically in all cases. During the first month of implantation, accumulation of inflammatory cells was observed along with decomposition around the Biosheet. Decomposition was almost complete after 3 months, and the Biosheet was replaced by autologous collagenous connective tissue without rejection. After 5 months, the abdominal wall muscle elongated from the periphery of the newly formed collagen layer and the peritoneum was formed on the peritoneal cavity surface. Regeneration of almost all layers of the abdominal wall was observed. However, almost all pericardium patches were remained even at 5 months with inflammation.

Conclusion

Bovine Biosheets requiring no special post-treatment can be useful as off-the-shelf materials for abdominal wall repair.
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13.

Background

Sarcopenic obesity is the combination of low muscle mass and strength with increased fat mass. This condition is associated with negative health outcomes. We hypothesized that sarcopenia could be a pejorative factor on surgical weight loss.

Objective

The objectives of the study are to determine the influence of sarcopenic obesity on gastric bypass and sleeve gastrectomy results regarding weight loss and comorbidities resolution at 3, 6, and 12 months.

Setting

The study was conducted at the University Hospital.

Methods

Sixty-nine obese patients who benefited from bariatric surgery were included. Skeletal muscle mass was determined by the Janssen’s equation. Physical performance and muscle strength were determined using the 6-min walk test and the wall sit test. Obese subjects from the lowest tertile of the Skeletal Muscle mass Index (SMI) of Baumgartner were set as sarcopenic.

Results

Weight loss outcomes and rate of weight loss failure were not influenced by sarcopenia. At 1 year, mean EBMIL% was 75.4 %?±?5 in sarcopenic subjects vs 67.8 % ±4 in the non-sarcopenic subjects (p?=?0.242). Improvement rates of co-morbidities were similar between groups. Skeletal muscle mass was no more different between groups at 1 year after surgery. There was no patient lost to follow-up.

Conclusions

Bariatric surgery remains effective in achieving weight loss target in sarcopenic patients, with similar remission rates of main comorbidities and similar safety profile than in the non-sarcopenic group. Whether bariatric surgery could result in improvement or deterioration of daily living activities disabilities and functional autonomy in sarcopenic obese patients still have to be evaluated.
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14.

Purpose

To determine whether radiographic measurements derived from standard computed tomography (CT) evaluation can be used to predict likelihood of a peri-operative lateral femoral wall fracture in AO/OTA 31-A2 pertrochanteric fractures treated with a dynamic hip screw (DHS).

Methods

Fifty-one patients with AO/OTA 31-A2 classified pertrochanteric fractures were evaluated using a pre-operative CT scan of the pelvis with both hips. Dimensions of the lateral wall were calculated for each patient using four parameters: (1) height of the lateral wall above the vastus ridge; (2) circumference of the lateral wall 2 cm below the vastus ridge at an angle of 135°; this circumference was further divided into an anterior, lateral and posterior component; (3) cortical thickness at the centre of the lateral component of the lateral wall; and (4) cortical index. All patients were treated with a 135° DHS. Postoperative radiographs were assessed for lateral femoral wall fracture.

Results

Patients with a lateral wall fracture (17/51) had a smaller circumference (4.47 cm vs 5.44 cm p value?<0.001) as well as a lower height of the lateral femoral wall (1.37 cm vs 2.21 p value?<?0.001). Analysis of the three components of the circumference revealed a significant difference for the anterior component only and not for the lateral and posterior components. There was no statistical difference in the cortical thickness or cortical index in the two groups. The cutoff values for height of the lateral wall and anterior component were calculated using ROC curves and found to be 1.68 cm (AUC 0.918) and 2.10 cm (AUC 0.851) respectively.

Conclusion

AO/OTA 31-A2 pertrochanteric fractures with a lateral wall height of > 1.68 cm and an anterior component of > 2.10 cm in circumference are not likely to sustain a lateral wall fracture when treated with a DHS.
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15.

Background

Duplex ultrasound is routinely used to evaluate suspected deep venous thrombosis after total joint arthroplasty. When there is a clinical suspicion for a pulmonary embolism, a chest angiogram (chest CTA) is concomitantly obtained.

Questions/Purposes

Two questions were addressed: First, for the population of patients who receive duplex ultrasound after total joint arthroplasty, what is the rate of positive results? Second, for these patients, how many of these also undergo chest CTA for clinical suspicion of pulmonary embolus and how many of these tests are positive? Furthermore, what is the correlation between duplex ultrasound results and chest CTA results?

Methods

A retrospective chart review was conducted of total joint replacement patients in 2011 at a single institution. Inclusion criteria were adult patients who underwent a postoperative duplex ultrasonography for clinical suspicion of deep venous thrombosis (DVT). Demographic data, result of duplex scan, clinical indications for obtaining the duplex scan, and DVT prophylaxis used were recorded. Additionally, if a chest CTA was obtained for clinical suspicion for pulmonary embolus, results and clinical indication for obtaining the test were recorded. The rate of positive results for duplex ultrasonography and chest CTA was computed and correlated based on clinical indications.

Results

Two hundred ninety-five patients underwent duplex ultrasonography of which only 0.7% were positive for a DVT. One hundred three patients underwent a chest CTA for clinical suspicion of a pulmonary embolism (PE) of which 26 revealed a pulmonary embolus, none of which had a positive duplex ultrasound.

Conclusion

Postoperative duplex scans have a low rate of positive results. A substantial number of patients with negative duplex results subsequently underwent chest CTA for clinical suspicion for which a pulmonary embolus was found, presumably resulting from a DVT despite negative duplex ultrasound result. A negative duplex ultrasonography should not rule out the presence of a DVT which can embolize to the lungs and thus should not preclude further workup when clinical suspicion exists for a pulmonary embolus.
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16.

Background

Spleen leaves its normal anatomical position and appears in other locations, which is called ectopic spleen. It is most commonly found in the abdomen or pelvis with seeding of the peritoneum, omentum or mesentery. A few of cases of thoracic splenosis associated with traumatic diaphragmatic rupture have been reported.

Case presentation

We make a report on a case of intrapulmonary thoracic splenosis. A 44-year-old male patient underwent splenectomy due to a high fall accident injury in 2008. After ten years, thoracic splenosis were found in the lungs and chest wall. Clinical diagnosis was unidentified masses, benign tumor of lungs and chest wall. The radiological imaging was suggestive of the thoracic splenosis, After surgery, the diagnosis of thoracic splenosis was confirmed by pathological diagnosis.

Conclusions

Thoracic splenosis may occur after the injury to spleen and surgical treatment may not be the preferred method for asymptomatic or less symptomatic thoracic splenosis.
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17.

Background

The pyriform sinus is a potential location for ectopic parathyroid tissue and we describe the use of trans-oral robotic to excise the ectopic tissue.

Methods

A 55-year-old female presented with primary hyperparathyroidism. 4D computed tomography and Sestimibi scan revealed a 1.2 × 0.7 cm mass in the left pyriform sinus. Using the da Vinci SI robot, a 1 cm hypopharyngeal incision was made with electrocautery in the left pyriform sinus and used to excise the mass.

Results

Ectopic mass was removed via trans-oral robotic approach and final pathology confirmed parathyroid tissue. Parathyroid hormone level dropped from 135.8 to 13.3 pg/ml 15 min after excision of the mass.

Conclusion

Ectopic parathyroid tissue can present in many different areas of the neck, with the pyriform sinus being a potential location. The trans-oral robotic parathyroidectomy confers the advantage of the lack of an external incision for removal of ectopic parathyroid adenoma.
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18.

Background

New patients come more and more often over the internet; therefore internet marketing plays an increasingly important role.

Question

How can physicians build an effective internet marketing strategy and avoid complications?

Method

Selection and authorization of a reputable agency.

Results

New customer acquisition through high visibility in the internet, at the same time increasing the image and awareness.

Conclusions

In the overall “marketing mix” internet marketing has become indispensable to physicians who want to be successful. Those who are well positioned in Google are well known by their target audience and thus receive a higher response.
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19.

Aim

To report the rare case of a primary peritoneal hydatid cyst in a 65-year-old lady.

Case Report

A 65-year-old female presented with a 3-month history of a painless progressive swelling in the right lower abdomen. The lump was 10 cm × 8 cm in size, non-tender, cystic in consistency, and was located in the right iliac fossa and part of the right lumbar region; mobility was restricted in all directions. CECT showed a large septated cystic lesion 14 × 9 × 8 cm in size with enhancement, and sharp regular outline in the right lower abdomen along the anterior aspect of the right psoas muscle. The liver and spleen were not affected.

Result

During surgery, a cystic swelling was exposed. Aspiration revealed a clear fluid with some floating material. The cyst wall was incised and fluid along with daughter cysts were removed keeping the pericyst in situ. Histopathological examination confirmed hydatid disease.

Conclusion

Primary peritoneal hydatid cysts, though very rare, should be kept in mind in the differential diagnosis of a right iliac fossa lump in areas where hydatid disease is endemic.
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20.

Background

To analyse the prevalences of the cam and pincer morphologies in a cohort of patients with groin pain syndrome caused by inguinal pathologies.

Materials and methods

Forty-four patients (40 men and 4 women) who suffered from groin pain syndrome were enrolled in the study. All the patients were radiographically and clinically evaluated following a standardised protocol established by the First Groin Pain Syndrome Italian Consensus Conference on Terminology, Clinical Evaluation and Imaging Assessment in Groin Pain in Athlete. Subsequently, all of the subjects underwent a laparoscopic repair of the posterior inguinal wall.

Results

The study demonstrated an association between the cam morphology and inguinal pathologies in 88.6% of the cases (39 subjects). This relationship may be explained by noting that the cam morphology leads to biomechanical stress at the posterior inguinal wall level.

Conclusions

Athletic subjects who present the cam morphology may be considered a population at risk of developing inguinal pathologies.

Level of evidence

Level IV, Observational cross-sectional study.
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