Use of a biodegradable patch for reconstruction of large thoracic cage defects in growing children

Background/Purpose

At our institution, procedures were developed to enlarge and stabilize the thoracic cavity of children born with severe-enough abnormalities of the thoracic cage as to result in lack of normal lung growth and function. In addition to the device known as the vertical expandable prosthetic titanium rib (VEPTR), some type of patch material was needed to cover large congenital defects of the chest cage owing to rib absence or to cover defects created because of the expansion process. Initially, synthetic material, polytetrafluorethylene (Gore-Tex, WL Gore and Associates, Flagstaff, Ariz) was used, but this proved itself to be restrictive over time and required removal. Thus, a nonsynthetic biodegradable patch material was adopted for coverage of the defects (Surgisis, Cook, Bloomington, Ind).

Methods

From October 2001 through October 2004, 26 growing children undergoing thoracic cage reconstruction received the biodegradable extracellular matrix patch derived from porcine SIS (Cook). A patch was deemed necessary if any one of the following conditions was obtained: (a) herniation of the lung was likely; (b) chest wall musculature was significantly diminished; (c) injury to the lung was likely at reoperation; (d) the defect was greater than 2 × 2 cm.

Results

During the follow-up period, 41 months thus far, each of the 26 children has undergone routine, scheduled expansions or change-out procedures every 6 months. The SIS has not required removal for any reason and has not restricted growth of the thoracic cage.

Conclusions

Compared with synthetic soft tissue patch material, the nonsynthetic, biodegradable soft tissue patch (SIS) has proven to be a superior alternative, thus far, to others for use in our population of patients for reconstruction of the thoracic cage in the growing child.     

Intussusception after pancreatic surgery in children: a case series

Background

Postoperative intussusception (POI) has been described after a wide variety of pediatric surgical procedures, but it has not been reported as a complication after pediatric pancreatic resections.

Methods

We performed a retrospective review of 5 cases of pancreatectomy-related POI observed between October 1998 and July 2009 within a series of 234 pancreatic resections in children.

Results

The incidence of pancreatectomy-related POI was 2.1%. Postoperative intussusception was observed after either partial or near-total pancreatic resections. There was no sex predisposition. All cases occurred within the first 2 postoperative weeks and involved the small bowel exclusively. The outcome after surgery was uneventful in all cases. The overall clinical course in our cases was similar to that described in the literature for POI associated with other surgical procedures.

Conclusions

The incidence of POI after pancreatic resections in children is significantly higher than the general incidence reported in the literature (2.1% vs 0.08%-0.25%).     

Staircase falls: High-risk groups and injury characteristics in 464 patients

Introduction

Few data are available about the epidemiology and injury characteristics in staircase falls. The available literature mainly concerns children and autopsy studies.

Objective

To describe the epidemiology and injury characteristics of staircase falls, and to identify high-risk groups for these falls.

Methods

All patients who reported to an academic Accident & Emergency (A&E) department in 2005 after a staircase fall were selected in the Dutch Injury Surveillance System These data were linked to the hospital Trauma Registry database.

Results

Four hundred and sixty-four patients (42% male, p = 0.001), with a median age of 35 years were included. Children under five suffered significantly more head injuries. Male patients showed significantly more thoracic injuries than female patients. Spinal column fractures were only seen in patients over 25 years of age. Older patients tended to accumulate more rib fractures and lower extremity fractures and were admitted more frequently than the younger patients. Sixty-one patients (13%) required admission. Two patients, both with severe traumatic brain injury (TBI), died. National data on staircase falls were comparable with our hospital data. However, in comparison to the national population data, senior citizens in this study had an incidence that was markedly higher than in the younger patients.

Conclusion

Injuries due to staircase falls occur in all age groups, however, children under five years are relatively over-represented with higher rates of head injury. Senior citizens showed a markedly higher incidence than younger patients. Most injuries occur to the distal extremities and are relatively mild.     

Medial scapular winging associated with rib fractures and plating corrected with pectoralis major transfer

INTRODUCTION

Rib plating is becoming increasingly common as a method for stabilizing a flail chest resulting from multiple rib fractures. Recent guidelines recommend surgical stabilization of a flail chest based on consistent evidence of its efficacy and lack of major safety concerns. But complications of this procedure can occur and are wide ranging.

PRESENTATION OF CASE

We report an interesting case of a 58-year-old male patient that worked as a long-distance truck driver and had a flail chest from multiple bilateral rib fractures that occurred when his vehicle was blown over in a wind storm. He underwent open reduction with internal fixation (ORIF) of the bilateral rib fractures and they successfully healed. However, he had permanent long thoracic nerve injury on the side with the most severe trauma. This resulted in symptomatic scapular winging that impeded him from long-distance truck driving. The scapular winging was surgically corrected nearly two years later with a pectoralis major transfer augmented with fascia lata graft. The patient had an excellent final result.

DISCUSSION

We report this case to alert surgeons who perform rib fracture ORIF that long thoracic nerve injury is a potential iatrogenic complication of that procedure or might be a result of the chest wall trauma.

CONCLUSION

Although the specific cause of the long thoracic nerve injury could not be determined in our patient, it was associated with chest wall trauma in the setting of rib fracture ORIF. The scapular winging was surgically corrected with a pectoralis major transfer.     

Evaluation of intramedullary rib splints for less-invasive stabilisation of rib fractures

Background

Intramedullary fixation of rib fractures with generic Kirschner wires has been practiced for over 50 years. However, this technique has not been advanced to address reported complications of wire migration and cut-out. This biomechanical study evaluated a novel rib splint designed to replicate the less-invasive fixation approach of Kirschner wires while mitigating their associated complications.

Methods

The durability, strength, and failure mode of rib fracture fixation with intramedullary rib splints were evaluated in 27 cadaveric ribs. First, intact ribs were loaded to failure to determine their strength and to induce realistic rib fractures. Subsequently, fractures were stabilised with a novel rib splint made of titanium alloy with a rectangular cross-section that was secured with a locking screw. All fixation constructs were dynamically loaded to 360,000 cycles at five times the respiratory load magnitude to determine their durability. Finally, constructs were loaded to failure to determine their residual strength and failure modes.

Results

Native ribs had a strength of 9.7 ± 5.0 N m, with a range of 3.5-19.6 N m. Fracture fixation with rib splints was uneventful. All 27 splint constructs sustained dynamic loading without fixation failure, implant migration or implant cut-out. Dynamic loading caused no significant decrease in construct stiffness (p = 0.85) and construct subsidence remained on average below 0.5 mm. The residual strength of splint constructs after dynamic loading was 1.1 ± 0.24 N m. Constructs failed by splint bending in 44% of specimens and by developing fracture lines along the superior and inferior cortices in 56% of specimens. Regardless of the failure mode, all rib splint constructs recoiled elastically after failure and retained functional reduction and fixation. No construct exhibited implant cut-out or migration through the lateral cortex.

Conclusions

Rib splints can provide sufficient stability to support respiratory loading throughout the healing phase, but they cannot restore the full strength of native ribs. Most importantly, rib splints mitigated the complications reported for rib fracture fixation with generic Kirschner wires, namely implant cut-out and migration through the lateral cortex. Therefore, rib splints may provide an advanced alternative to the original Kirschner wire technique for less-invasive fixation of rib fractures.     

Ipsilateral talar and calcaneal fractures: A retrospective review of complications and sequelae

Background

Ipsilateral talar and calcaneal fractures represent a rare combination injury that has only recently been reported in the literature with small case series.

Objective

To identify the commonly observed fracture patterns, complications, and outcomes of a consecutive series of patients with ipsilateral talar and calcaneal fractures.

Methods

Forty-five cases of ipsilateral talus and calcanal fractures were identified from an orthopaedic trauma registry at a University-based, level I trauma center for retrospective review.

Main outcome measurements

Post-operative complications, the need for secondary surgery, and the visual analogus pain score.

Results

Five patients were treated with an early below knee amputation (BKA). Five patients were treated with a primary subtalar arthrodesis. Twenty-eight of the 35 patients who did not undergo early BKA or primary subtalar arthrodesis developed subtalar arthritis. Five patients had deep wound complications. Four patients had talar body collapse from avascular necrosis. There were 13 open fractures of which 8 resulted in an eventual BKA. The mean visual analogus pain score for the patient population was 4.0.

Conclusion

The combination of ipsilateral talar and calcaneal fractures represents a severe injury pattern that is associated with significant morbidity. Subtalar arthritis was a common finding regardless of treatment. Open fractures frequently resulted in a below knee amputation.     

Pronation and supination after forearm fractures in children: Reliability of visual estimation and conventional goniometry measurement

Background

Forearm fractures are common amongst children and often result in limited rotational function. In daily practice, pronation and supination of the arm are often visually estimated or measured using a conventional goniometer. The aim of this study was to compare the reliability of these two methods in paediatric patients who had previously sustained a forearm fracture.

Methods

Intra- and interrater reliability of visual estimation and conventional goniometry were determined in 47 children who had previously sustained a forearm fracture.

Results

Intra- and interrater reliability of visual estimation and conventional goniometry was fair to excellent, with intraclass correlation coefficients (ICCs) ranging between 0.75 and 0.94. In addition, the overall goniometer data consistently showed lower smallest detectable differences (SDDs) compared to the visual estimation data, also indicating better reliability for the goniometer method.

Conclusions

A conventional goniometer is an easy, fast and reliable method to determine the pronation and supination in a child who had sustained a forearm fracture. If an uncooperative child hinders the measurement, visual estimation is a good second choice. Measurements are more reliable when repeated by the same professional.     

Effect of graft size on graft fracture rate after anterior lumbar spinal fusion in a sheep model

Study design

Sheep anterior spinal fusion model with autogenous and xenogenous bone grafts.

Objective

To investigate whether the relationship between cross-sectional area of the bone graft and area of the adjacent vertebral endplates has an effect on graft fracture rate.

Summary of background data

Anterior spondylodesis with autogenous iliac crest transplant is a frequently performed operation to stabilize spinal motion segments but to date no precise recommendations with respect to minimum graft size are available in the literature.

Methods

Anterior spondylodesis using autogenous and xenogenous grafts of constant size in combination with an angular stable plate (Macs TL^®). Autogenous iliac crest graft was inserted in eight sheep and xenogenic, commercially available bovine graft (Tutobone^®) in the additional eight animals.The surface areas of the endplates of the fused intervertebral space were calculated using CT scans and contact radiographs of the specimens obtained after 24 weeks. The graft itself was evaluated for fractures and osteolysis.

Results

A fracture occurred in tricortical, autogenous grafts if the graft cross-sectional area was less than 21% of the area of the adjacent endplates. All xenogenic grafts fractured and therefore a comparable value could not be determined.

Conclusion

The results clearly indicate that the relation between graft cross-sectional area and endplate area defines the survival or fracture of the graft in anterior spinal fusion. Although it is difficult to directly apply the results to the clinical situation it is suggested to choose a sufficiently large graft, in order to reduce the risk of autogenous graft fracture in anterior spondylodesis.     

Identification of Shoulder-specific Patient Acceptable Symptom State in Patients with Rheumatic Diseases Undergoing Shoulder Surgery

Study Design

Clinical measurement study with a longitudinal design.

Objective

Estimate Patient Acceptable Symptom State (PASS) thresholds in six shoulder outcome measures and two pain scales.

Methods

Patients with rheumatic diseases undergoing shoulder surgery were assessed at baseline and one-year follow-up (with Bostrom Shoulder Movement Impairment Scale, Constant, Disability of the Arm, Shoulder and Hand [DASH], Oxford Shoulder Score [Oxford], Shoulder Function Assessment Scale, Shoulder Pain and Disability Index [Spadi], and two visual analog pain scales [VAS]). PASS thresholds were estimated using the 75th percentile and the receiver operating characteristic curve approach.

Results

One hundred patients were included; 74 (74%) patients considered their shoulder function to be acceptable (PASS+), which was significantly associated with being female, odds ratio (OR) 4.54, and having better functional status (Health Assessment Questionnaire), OR 0.17 (p < 0.05). Activity-related pain (VAS), the Oxford, and the Spadi showed best discriminative accuracy for PASS. All measures estimated changes exceeding the minimal clinical important difference.

Conclusion

The Oxford and the Spadi showed better discriminant ability for PASS than the more commonly used Constant score and the DASH. The PASS thresholds for pain showed that patients accepted less pain at rest than during activity, underlining the importance of assessing both aspects of pain.

Level of Evidence

3. Diagnostic study.     

Femoral shaft fractures in the elderly--role of prior bisphosphonate therapy

Introduction

There is a recent surge in interest on bisphosphonate related femoral fractures. Most studies have examined subtrochanteric fractures in patients on long-term bisphosphonates. This study evaluates the characteristics of low-impact femoral shaft fractures in elderly patients on long-term alendronate.

Materials and methods

All patients above 60 years old admitted to the National University Hospital for femoral shaft fracture from January 2003 to January 2007 were retrospectively analysed. Of the 55 patients included, 7 had prior alendronate therapy and were examined in detail.

Results

All 7 patients on prior alendronate therapy sustained their fractures by low-impact or atraumatic mechanisms of injury. 5 of these 7 patients exhibited a characteristic fracture pattern of thickened lateral cortices at the proximal fracture fragment (p < 0.05) and all 7 patients had either transverse or short oblique fractures. Notably, none of the 7 patients had bone mineral density scans prior to their fractures. One patient was started on alendronate after a vertebral compression fracture, whilst the other 6 patients were started on alendronate without any clear clinical indication. All 7 patients reported prodromal thigh pain 3 weeks to 2 years prior to the fracture.

Conclusions

Low-impact femoral shaft fractures in elderly patients on long-term alendronate therapy represent a new entity of insufficiency fractures, with characteristic low-impact modes of injury and fracture patterns on radiograph. Prodromal thigh pain is a warning sign for impending fracture in this group of patients and should be evaluated closely. Teriparatide is a possible alternative to alendronate following such a fracture though more long-term clinical studies are required.     

Risk factors for blunt thoracic aortic injury in children

Background/Purpose

Because blunt thoracic aortic injury is rare in children, a high index of suspicion is needed to identify this injury. The purpose of this study was to use a large national trauma database to define the risk factors for blunt thoracic aortic injury in children.

Methods

Using the National Trauma Database, the authors compared patient demographics, mechanism of injury, and associated injuries between children sustaining blunt trauma with and without a thoracic aortic injury. Factors independently associated with this injury were identified using multivariate methods.

Results

Among 26,940 children with a blunt mechanism of injury, 34 (0.1%) children sustained a thoracic aortic injury, 14 (41%) of whom died. Thoracic aortic injuries were independently associated with age, injury sustained as an occupant in a motor vehicle crash, and severe injuries (Abbreviated Injury Scale value of ≥3) involving the head, thorax (other than aorta), abdomen, and lower extremities.

Conclusions

Older children involved in a motor vehicle crash with severe head, torso, and lower extremity injuries are a group at high risk for injury to the thoracic aorta. These easily identifiable risk factors may facilitate more rapid identification of this rare and potentially fatal injury.     

Novel titanium constructs for chest wall reconstruction in children

Purpose

We have previously reported the use of the vertical expandable prosthetic titanium rib (VEPTR) for treatment of thoracic dystrophy. This report describes our experience with this device and other novel titanium constructs for chest wall reconstruction.

Methods

This is a retrospective chart review of all children and adolescents undergoing chest wall reconstruction with titanium constructs between December 2005 and May 2010.

Results

Six patients have undergone chest wall reconstruction with VEPTR or other titanium constructs. Four had chest wall resection for primary malignancy, 1 had metastatic chest wall tumor resection, and 1 had congenital chest wall deformity. There were no immediate complications, and all patients have exhibited excellent respiratory function with no scoliosis.

Conclusions

Chest wall reconstruction after tumor resection or for primary chest wall deformities can be effectively accomplished with VEPTR and other customized titanium constructs. Goals should be durable protection of intrathoracic organs and preservation of thoracic volume and function throughout growth. Careful preoperative evaluation and patient-specific planning are important aspects of successful reconstruction.     

Further experience with the operative management of asphyxiating thoracic dystrophy after pectus repair

Background/Purpose

Asphyxiating thoracic dystrophy (ATD) can occur years after a Ravitch-type repair of pectus excavatum, resulting in debilitating alteration in pulmonary function (PFT). An operation was devised to attempt repair of this deformity.

Methods

After institutional review board approval, the records of 10 children (ages 9-18 years) with ATD that developed 4 to 12 years postpectus operation who underwent attempted repair of ATD were reviewed. Data obtained before ATD operation and at 6, 12, and 24 months afterward included chest computed tomography, pulmonary functions (PFT), and a quality of life questionnaire. The operation consisted of sternal split with rib graft placement to permanently hold the sternum apart.

Results

All children survived and the bone grafts healed solidly. Computed tomography showed a change from a flat to a round chest contour on cross section, with increased anteroposterior dimension. Two patients had no change in PFT at 24 months whereas the other 8 had 21% to 30% improvement in PFT parameters. All patients reported improved exercise tolerance, and 3 began sports activities who were previously unable to do so. Two patients on oxygen, essentially bedridden, are now active, breathing only room air. Seven of 10 patients continue to have cosmetic concerns.

Conclusions

A small population of patients who had postoperative pectus repair developed severe, debilitating ATD. The repair described improves most patients, some dramatically, but does not significantly improve cosmetic appearance. The operation is undergoing further refinement to address these issues.     

Epidemiology of traumatic spine fractures

Objectives

To illustrate the correlations and effects of age, gender and cause of accident on the type of vertebral fracture and fracture distribution, as well as on the likelihood to sustain an associated injury or neurological deficit.

Design

Retrospective analysis of 562 patients with a traumatic fracture of the spine. Each patient was analysed by reviewing the medical records, the initial radiographs and CT-scans.

Setting

Level 1 trauma centre from 01/1996 to 12/2000.

Results

The most common cause of accident was a high-energy fall (39%), followed by traffic accidents (26.5%). While fall related fractures were evenly distributed over the whole spine, traffic accidents induced significantly more fractures of the cervical and thoracic spine. Sixty-five percent of all cervical spine fractures and 80% of the multisegmental injuries were accompanied by an associated injury. The highest incidence of associated injuries was observed in patients with multilevel fractures (96.5%). Patients with a concomitant injury were more likely to sustain a spinal cord lesion. Sixty-three (11.2%) patients exhibited a complete motor and sensory deficit, 76 (13.5%) an incomplete and 423 (75.3%) no neurological deficit. The highest number of complete motor and sensory neurological deficits was found in cervical spine fractures (19.7%). The majority of patients, 308 (54.8%), sustained a compression fracture, 95 (16.9%) a distraction fracture, and 104 (18.5%) patients experienced a rotational fracture.

Conclusions

This study demonstrates correlations between the cause of accident, the type of spinal fracture and the fracture distribution. Using the AO classification, the likelihood to sustain either associated and/or spinal cord injuries, is predictable.     

Clinical predictors of occult pneumothoraces in severely injured blunt polytrauma patients: A prospective observational study

Introduction

The supine antero-posterior (AP) chest radiograph (CXR) is an insensitive test for detecting post-traumatic pneumothoraces (PTXs). Computed tomography (CT) often identifies occult pneumothoraces (OPTXs) that were not diagnosed on CXR. The purpose of this study was to prospectively determine the incidence, and validate previously identified clinical predictors, of OPTXs after blunt trauma.

Methods

All severe blunt injured patients (injury severity score (ISS) ≥ 12) presenting to a level 1 trauma centre over a 17-month period were prospectively evaluated. Thoracoabdominal CT scans and corresponding CXRs were reviewed at the time of admission. Patients with OPTXs were compared to those with overt PTXs regarding incidence and previously identified predictive risk factors (subcutaneous emphysema, rib fractures, female sex and pulmonary contusion).

Results

CT imaging was performed concurrent to CXR in 405 blunt trauma patients (ISS ≥ 12) during the study period. PTXs were identified in 107 (26%) of the 405 patients. Eighty-one (76%) of these were occult when CXRs were interpreted by the trauma team. Concurrent chest trauma predictive of OPTXs was limited to subcutaneous emphysema (p = 0.003). Rib fractures, pulmonary contusions and female sex were not predictive.

Conclusions

OPTXs were missed in up to 76% of all seriously injured patients when CXRs were interpreted by the trauma team. This is higher than previously reported in retrospective studies and is likely based on the difficult conditions in which the trauma team functions. Subcutaneous emphysema remains a strong clinical predictor for concurrent OPTXs.     

Ex utero intrapartum treatment with placement on extracorporeal membrane oxygenation for fetal thoracic masses

Purpose

We describe our experience with fetuses diagnosed with life-threatening chest masses who were delivered by ex utero intrapartum treatment with placement on extracorporeal membrane oxygenation (EXIT-to-ECMO).

Methods

The first fetus presented with a cystic mediastinal mass and enlarging echogenic lungs. Bronchoscopic evaluation during ex utero intrapartum treatment (EXIT) revealed complete airway obstruction secondary to a carinal bronchogenic cyst. The second fetus presented with a massive left congenital cystic adenomatoid malformation. The EXIT procedure was performed because of significant mediastinal shift, severe compression of the normal lung parenchyma, and signs of fetal distress.

Results

In both cases, extracorporeal membrane oxygenation (ECMO) was initiated while on placental support. The fetuses were then delivered, and a definitive resection of their thoracic lesions was successfully performed. There were no major perioperative complications. Both children made expedient recoveries without significant cardiopulmonary sequelae.

Conclusion

To our knowledge, this is the first report describing the successful use of EXIT-to-ECMO as a bridge to definitive resection of large chest masses diagnosed in utero. EXIT-to-ECMO is a novel and effective management strategy for stabilizing patients with profound respiratory compromise secondary to congenital thoracic lesions.     

Bicycle-related injuries in children: Disturbing profile of a growing problem

Context

We observed a changing pattern of bicycle-related injuries in children, with the focus changing from head trauma to thoracic and abdominal injuries, and a trend to increasingly severe injuries.

Objective

To assess the changing injury pattern, and investigate the development of preventive measures to improve safety.

Design, setting, and participants

Retrospective record review of 142 paediatric patients admitted to our Department of Paediatric Surgery between 1996 and 2005 following bicycle-related injuries. Clinical, laboratory, diagnostic, and therapeutic aspects were analysed. Additional information concerning children's bicycle-related injuries in Israel was obtained from the Gertner Institute (Israel National Center for Trauma and Emergency Medicine Research) and from Beterem (The National Center for Children's Safety & Health, the Safe Kids Israeli Chapter) National Report on Child Injuries in Israel 2006.

Main outcome measures

The nature and severity of injuries were reviewed, and two 5-year periods compared—from 1996 to 2000 (53 children—Group 1), and from 2001 to 2005 (89 children—Group 2).

Results

Head trauma was more common in the Group 1 patients (52.6% vs. 45.2%), but skull fractures and intracranial haemorrhage occurred more frequently in Group 2 (28.5% vs. 16.7%; 21.3% vs. 8.3%, respectively). Injury to the stomach or duodenum, kidneys and liver were all more common in Group 2. Splenic injury occurred with equal frequency in both groups, but more severe injuries were seen in Group 2. More children in Group 2 required intensive care (31% vs. 19.3%).

Conclusions

There is a changing pattern of bicycle-related injuries in children, with chest and abdominal injuries dominating, and an increasing incidence of more severe injury. These findings are important in decision-making regarding preventive measures.     

Camel-related injuries in the pediatric age group

Background

Road traffic accidents continue to be a major cause of morbidity and mortality among children. Domestic animal-related injuries in general, camel-related in particular, have not been given much attention, and very little is written about them.

Methods

The medical records of all children admitted to our hospital with camel-related injuries were retrospectively reviewed for age, sex, mechanism of injury, type of injuries, treatment, and outcome.

Results

Seventy-eight children with camel-related injuries were seen at our hospital. Most of them were camel jockeys. All were males, and their ages ranged from 4 to 15 years (mean, 8.6 years). In 74, the cause of injury was a fall from a racing camel, 2 were kicked by a camel, and 1 had a camel bite. Forty-four (56.4%) had head injury, which was moderate to severe in 17, and 6 of them had associated skull fractures, whereas 3 had intracranial hematomas. Twenty-five (32.1%) had fractures of various bones, and 14 of them had fracture of the tibia. One child had L2 and L3 dislocation, with displacement and compression fracture of L2. Two sustained thoracic injuries, whereas 9 had intraabdominal injuries, including liver injury (3), splenic injury (1), renal injury (3), and bowel injury (2). One had a camel bite leading to a fractured mandible, injury to his ear, and intimal tear of the left common carotid artery.

Conclusions

Camels are a potential cause of serious injuries and a major public health problem for children in this part of the world. This is especially so for camel jockeys. Every effort should be made to prevent such injuries, including limiting camel racing to older children as well as providing adequate protective measures and public education about the proper and compassionate handling of domestic animals.     

Vertical expandable prosthetic titanium rib for thoracic insufficiency syndrome: a new method to treat an old problem

Purpose

The vertical expandable prosthetic titanium rib (VEPTR) thoracoplasty is a new technique devised for the treatment children with thoracic insufficiency syndrome. This study describes our initial experience with this device.

Methods

This is a retrospective chart review of all children undergoing VEPTR placement between October 2001 and December 2005.

Results

Twenty-two patients had 36 VEPTR devices placed. Two patients had Jeune syndrome, 19 had scoliosis, and 1 had a chest wall resection for tumor. Most had associated carbon dioxide retention, pulmonary restrictive disease, or respiratory failure. Eleven patients had multiple fused ribs requiring opening thoracostomy. All but the most recent patients have undergone sequential VEPTR expansion. All children had intraoperative spinal cord monitoring (somatosensory evoked potential). Four experienced intraoperative somatosensory evoked potential changes that resolved with decreased VEPTR expansion. Seven VEPTR devices required revision for erosion through the bone or dislodgment and 3 were removed. Five were outgrown and removed or replaced. One eroded soft tissue causing superficial infection that resolved with operative revision. Postoperative ventilation/perfusion scans improved most in younger children. Two of three children with carbon dioxide retention pre-VEPTR had carbon dioxide reduction post-VEPTR.

Conclusions

Vertical expandable prosthetic titanium rib (VEPTR) is a new and safe method to treat children with thoracic insufficiency syndrome. The VEPTR may decrease carbon dioxide retention in some patients and may be most beneficial in younger children.     

A retrospective study of the association between shortening of the clavicle after fracture and the clinical outcome in 136 patients

Background and purpose

The purpose of this retrospective study was to examine the association between shortening of the clavicle after a united midshaft fracture and clinical outcome. Second, the purpose was to compare the results obtained by conservative treatment with either a figure-of-eight bandage or a simple sling.

Materials and methods

This study included 136 patients with a united, conservatively treated, midshaft clavicle fracture. Mean age was 35 years (range 15-70 years); mean follow-up time was 55 months (range 24-83 months). The shortening of the clavicle was measured on a radiograph including one antero-posterior view of both clavicles on a single film and defined as the difference between the injured and the contralateral clavicle. The clinical outcome was measured using the Constant-Murley Score.

Results

The mean difference in the Constant-Murley Score between the injured and the contralateral shoulder was 7.3, P < 0.001 (95% confidence interval (CI) 5.6; 9.1). Mean shortening of the injured shoulder was 11.6 mm, P < 0.001 (95% CI 10.2; 13.0). A shortening of more than 20 mm was not associated with a poorer clinical outcome. The results obtained by conservative treatment with either a figure-of-eight bandage or a simple sling showed no difference in shortening or in the Constant-Murley Score.

Conclusions

We found that conservative treatment of midshaft clavicle fractures resulted in final shortening and mild reduction of shoulder function. A shortening of 20 mm or more was not associated with a poorer clinical outcome. The figure-of-eight bandage and a simple sling were equal treatments of midshaft clavicle fractures.