Complications after pinning of supracondylar distal humerus fractures

Pediatric Supracondylar Humerus Fractures: Treatment by a Pediatric Orthopedic Surgeon Versus a Non-pediatric Orthopedic Surgeon

INTRODUCTION

Supracondylar humerus fractures are the most common surgically treated fracture in children. National trends have demonstrated an increase in transfers of supracondylar fractures to pediatric hospitals due to the perception that supracondylar fractures need to be treated by pediatric specialists. The objectives of the study are to compare the outcomes of surgically treated pediatric supracondylar humerus fractures (PSCHF) between a pediatric orthopedic surgeon and a non-pediatric orthopedic surgeon at a single academic medical center; to assess radiographic reduction, the number of pins used, surgical time, Flynn criteria outcomes, and complications associated with PSCHF treatment by both types of surgeons; to determine if there is a significant difference in outcomes between pediatric and non-pediatric orthopedic surgeons in the treatment of PSCHF.

METHODS

Forty-seven consecutive pediatric patients, with an average age of 5.5 years old, who had undergone surgical correction for supracondylar humerus fractures during 2019 were included in this study. The intervention performed was closed reduction and percutaneous pinning. The main outcome measured: radiographic reduction on the AP and lateral X-ray view, number of K wires used, use of a medial K wire, time of surgery, the Flynn criteria, and complications. The Human Research Protection Program (HRPP) at Penn State approval was obtained.

RESULTS

Radiographic reductions as measured by Bauman's angle and the position of the anterior humeral line were excellent and similar between surgeons. The pediatric orthopedic surgeon used more medial K wires (p=0.0007), fewer K wires (p=0.0065), and the length of surgery was shorter (p=0.019). The Flynn criteria were similar with equal excellent and good results. For both surgeons, no complications such as loss of reduction, infection, iatrogenic nerve injury, compartment syndrome, or cubitus varus occurred.

CONCLUSIONS

Outcomes of treatment of displaced PSCHF by the pediatric and non-pediatric orthopedic surgeons were equal. The results of this study reaffirm the assertion that both pediatric and non-pediatric orthopedic surgeons have sufficient training and skill to treat these common fractures, thereby contributing to a more informed decision-making process in clinical practice.

Effect of Antibiotic Prophylaxis on Infection Rates in Pediatric Supracondylar Humerus Fractures Treated with Closed Reduction and Percutaneous Pinning: A Prospective Double-Blinded Randomized Controlled Trial

BACKGROUND

Supracondylar humerus fractures (SCHFs) are the most common elbow fracture in the pediatric population. In the case of displaced fractures, closed reduction and percutaneous Kirschner wire pinning (CRPP) is commonly performed. Infection rates are between 0 and 7%; however, retrospective studies have shown no benefit of preoperative antibiotics. There continues to be notable variability in antibiotic usage based on surgeon preference and local institutional policy. We conducted a double-blinded, randomized controlled trial to evaluate whether antibiotic prophylaxis reduces the risk of infection in pediatric SCHF patients treated with CRPP.

METHODS

Pediatric patients with displaced SCHF who presented to a pediatric hospital were enrolled and randomized into two groups. Group I received one dose of prophylactic antibiotics (25 mg/kg cefazolin IV up to 1g or clindamycin 10 mg/kg up to 600 mg/kg IV in the case of cefazolin allergy). Group II received placebo (10-mL prefilled syringe of normal saline). All patients underwent CRPP and casting followed by pin removal 3 to 6 weeks after the initial procedure. The presence of pin-site infection, erythema, drainage, septic arthritis, and osteomyelitis was recorded.

RESULTS

One hundred sixty patients were enrolled in the study. Eighty-two patients were randomized to receive antibiotics, and 78 patients were randomized to placebo. No difference was seen in the rate of infection between the treatment groups (1.2% in the antibiotic group versus 1.3% in the placebo group; P = 1.00). Presence of purulent drainage (0.0% versus 1.3%; P = 0.49), septic arthritis (0.0% versus 0.0%; P = 1.00), and osteomyelitis (1.2% versus 0.0%; P = 1.00) was similar in both groups. No difference in the need for additional antibiotics (1.2% versus 1.3%; P = 1.00) or additional surgery (1.2% versus 0.0%; P = 1.00) was found between groups.

DISCUSSION

The use of antibiotic prophylaxis did not affect the risk of infection in pediatric patients who underwent CRPP for displaced SCHF.

CLINICAL TRIAL REGISTRATION

ClinicalTrials.gov: NCT03261830.

LEVEL OF EVIDENCE

Therapeutic Level I.

Minimally invasive surgical technique for unstable supracondylar humerus fractures in children (Gartland type III or IV)

Background

Achieving and maintaining anatomical reduction during the treatment of pediatric humerus fractures, classified as Gartland type III or IV, presents a clinical challenge. Herein, we present a minimally invasive surgical approach using a novel and simple K-wire push technique that aids in achieving and maintaining anatomical reduction.

Methods

We reviewed data of children receiving treatment for supracondylar fractures of the humerus at our hospital between January 2016 and December 2020. Patients were divided into two groups based on the method of treatment: Group 1 was treated with the K-wire push technique, and Group 2 was treated with the standard technique as described by Rockwood and Wilkins. The medical records and radiographic images were reviewed. In total, 91 patients with Gartland types III and IV fractures were included, with 37 and 54 patients in Groups 1 and 2, respectively.

Results

The postoperative reduction radiographic parameters and Flynn scores at final follow-up were not significantly different between the two groups.

Conclusion

The minimally invasive K-wire push technique for unstable supracondylar fractures in children is a safe and effective alternative for improving reduction. Using this technique, complications can be minimized, and the requirement for open reduction can be reduced.

Pediatric Floating Elbows … What Is All the Fuss About? A Multicenter Perspective

BACKGROUND

Classic orthopaedic teaching states a high risk of pediatric acute compartment syndrome (PACS) and other adverse outcomes to be associated with pediatric floating elbow injuries. However, more recent data suggest otherwise. This study aims to evaluate treatment approaches and outcomes of pediatric floating elbow injuries and accurately determine the rate of associated PACS.

METHODS

A multicenter retrospective database was created to review patients below 18 years old who presented between 2014 and 2019 with floating elbow injuries. Patient demographics, injury characteristics, treatment course, and outcomes were evaluated. A severity classification (Children's Orthopaedic Trauma and Infection Consortium for Evidence-Based Studies) was established: class 1 injuries included Gartland 1 supracondylar fracture, class 2 included Gartland 2 supracondylar fracture, and class 3 included Gartland 3 or 4 supracondylar or t-condylar fracture. Subclasses A and B were based on displacement of the distal fracture.

RESULTS

Four hundred fifty four patients were evaluated across 15 institutions. The cohort was 51% male and a median of 6.8 years old at injury. Thirteen patients (2.9%) presented without a palpable or dopplerable pulse, all having class 3 injuries. Ninety patients (20.0%) presented with nerve injuries, which were more common in class 3 injuries ( P <0.001). Only 14 (3.1%) had persistent nerve injuries at the final follow-up. Displacement largely dictated whether the distal injury was treated with fixation ( P <0.001) or immobilization only. Open reduction rate of the proximal fracture was 7.7% overall. There was 1 case (0.2%) of PACS involving displaced proximal and distal fractures. The median length of follow-up was 2.5 months. Modified Flynn outcomes at the last clinical visit were excellent/good in 315 patients (70%). More severe injuries had less good/excellent outcomes than less severe injuries ( P =0.030).

CONCLUSIONS

This multicenter study of a large cohort of pediatric floating elbow injuries identified a low rate of PACS (0.2%). Closed treatment of the distal fracture was more frequently performed for nondisplaced fractures. Nerve and vascular injury rates were consistent with those of isolated component fractures and were associated with fracture displacement. The Children's Orthopaedic Trauma and Infection Consortium for Evidence-based Studies classification was an effective predictor of outcomes.

LEVEL OF EVIDENCE

Level IV.

Minimally invasive technique combined with external fixator in the treatment of pediatric flexion-type humeral supracondylar fractures

Flexion-type pediatric humeral supracondylar fractures are rare, and the reduction technique remains contradictory. A minimally invasive technique using percutaneous leverage reduction combined with an external fixator was described to achieve satisfactory reduction and avoid the open reduction in this study. The operation and clinical results of patients treated with this technique were retrospectively compared with traditional closed reduction. From January 2013 to January 2018, children diagnosed with displaced flexion-type humeral supracondylar fractures were included in this study. Patients were treated with closed reduction (Group A) or minimally invasive reduction technique (Group B). The external fixator fixation was then applied. The demographic information, as well as the clinical and functional results of the operation, were retrospectively reviewed and evaluated. There were twenty-two patients, ten in Group A and twelve in Group B. The mean duration of the operation in Group A was more prolonged than Group B (59 min versus 46 min, p < 0.001). No infection, nonunion, myositis ossificans, neurovascular injury or other complications related to the operation were observed by the time the fractures healed. During an average 36 months follow-up time, almost all children achieved good to excellent results except for one fair in Group A according to the MEPS and the Flynn criteria. This study introduced a safe and efficient minimally invasive technique for displaced flexion-type supracondylar humerus fractures. With the assistance of mosquito forceps, this leverage technique might achieve similar satisfactory clinical outcomes as traditional closed reduction but with a shorter surgical duration.

Incidence, risk factors, and consequences of radiographic pin migration after pinning of pediatric supracondylar humeral fractures

Current literature on pin migration is inconsistent and its significance is not understood. We aimed to investigate the incidence, magnitude, predictors, and consequences of radiographic pin migration after pediatric supracondylar humeral fractures (SCHF). We retrospectively reviewed pediatric patients treated with reduction and pinning of SCHF at our institution. Baseline and clinical data were collected. Pin migration was assessed by measuring the change in distance between pin tip and humeral cortex on sequential radiographs. Factors associated with pin migration and loss of reduction (LOR) were assessed. Six hundred forty-eight patients and 1506 pins were included; 21%, 5%, and 1% of patients had pin migration ≥5 mm, ≥10 mm, and ≥20 mm respectively. Mean migration in symptomatic patients was 20 mm compared to a migration of 5 mm in all patients with non-negligible migration ( P  < 0.001). Pin migration > 10 mm was strongly associated with LOR [odds ratio (OR) = 6.91; confidence interval (CI), 2.70-17.68]. Factors associated with increased migration included increased days to pin removal ( β  = 0.022; CI, 0.002-0.043), migration outwards versus inwards ( = 1.02; CI, 0.21-1.80), and BMI > 95th percentile (OR = 1.63; [1.06-2.50]). Factors not associated with migration included cross-pinning, number of pins, and fracture grade. In summary, we identified a 5% incidence of radiographic pin migration ≥ 10 mm and determined the factors associated with it. Pin migration became radiographically significant at >10 mm where it was strongly associated with LOR. Our findings contribute to the understanding of pin migration and suggest that interventions targeting pin migration may decrease the risk of LOR. Level of Evidence: Level III - Retrospective Cohort Study.

Management of displaced supracondylar fractures in children and adherence to the BOAST guideline- experience in a District General Hospital, UK

Background

Supracondylar fracture is the most common elbow fracture in children. These fractures can be associated with significant complications, including nerve injury, vascular compromise, compartment syndrome and clinical deformity. The British Orthopaedic Association Standards for Trauma (BOAST) provide clear and comprehensive guidance for managing the supracondylar fracture.

Aims

We reviewed the management of displaced (Gartland type 2 and 3) supracondylar fractures and adherence to BOAST guidelines between 1st audit and re-audit following the introduction of supracondylar assessment proforma.

Methods

We retrospectively analysed the adherence to BOAST guidelines for 103 patients operated between 2014 and 2020. Documentation of vascular status and individual nerve functions were assessed during presentation to the emergency department, immediately before surgery, and postoperatively before discharge from the hospital. We also reviewed the documentation of the K-wire's size utilised for fixation, the medial wire fixation technique, and post-fixation stability during the operation. A new supracondylar fracture assessment proforma was designed and implemented after the 1st audit as part of the quality improvement measure. During the second stage of the audit cycle, we reviewed 22 patients and used the same methodology as the first audit to analyse the data.

Results

Results: We found significant improvements in the documentation of capillary refill time from 65 % to 95.5 % (p = 0.0038), radial pulse from 59.2 % to 95.5 % (p = 0.0009), and documentation of individual nerve function from 37.9 % to 72.7 % (p = 0.0040) in the emergency department during 2nd stage of the audit cycle. Individual nerve function documentation by the operating team immediately before surgery changed from 42.7 % to 50 %. The use of 2 mm K-wires improved from 53.3 % to 89.5 % (p = 0.0037) Documentation of medial wire fixation technique and post-fixation stability increased to 100 % from 82.9 % to 89.5 % from 42.7 % (p = 0.0002), respectively. Postoperatively, we noted improvement in both radial pulse and capillary refill time documentation from 27.2 % to 54.2 % (p = 0.0216) and the individual nerve function from 9.7 % to 50 % (p = 0.00005).

Conclusion

Poor adherence in stage 1 of the audit cycle to BOAST standards was significantly improved in stage 2 (Re-audit) after introducing a simple supracondylar fracture assessment proforma and focussed educational sessions.

Recurrent Infections After Percutaneous Pinning of a Proximal Radius and Ulna Fracture

Elbow fractures in the pediatric population are an exceedingly common injury, comprising 5% to 10% of all pediatric fractures, with supracondylar fractures being the most common of the subset. Radial neck fractures are less frequent, comprising only 1% of all pediatric fractures. We provide a case report of a 7-year-old girl with a left radial neck and proximal ulna fracture. A 7-year-old girl presented to the emergency department after falling off a rock wall the day before. Imaging showed a left proximal ulna and proximal radial neck fracture. The patient underwent percutaneous reduction and fixation, complicated by subsequent infection requiring surgical débridement. The patient then developed a recurrent infection 1 year later, requiring repeat irrigation and débridement. The patient has since made a full recovery, returned to activities of daily living, and regained a full range of motion. Radial neck fractures have a low incidence and have been frequently associated with poor outcomes. The main mechanism by which these fractures occur is due to falling on an outstretched arm. Percutaneous pinning is often recommended after unsuccessful attempts at closed reduction because open reduction is often complicated by postoperative stiffness. As with any procedure that involves breaking the skin, there is a risk of infection. However, there is unclear evidence regarding ideal perioperative management to prevent postoperative infection.

Evaluating safe time to discharge after closed reduction and percutaneous pinning of uncomplicated type III supracondylar humerus fractures: a single-center retrospective review

The purpose of this retrospective study was to review complications following closed reduction, percutaneous pinning of isolated, type III supracondylar fractures without associated injuries to evaluate if patients may be discharged safely on the day of surgery. We performed a retrospective chart and radiographic review of patients with isolated Gartland type III supracondylar humerus fractures who underwent closed reduction and percutaneous pinning over a 4-year period. We reviewed admission time to the emergency department, time and length of surgery, time to discharge, postoperative complications, readmission rate and office visits. Of the 110 patients included, 19 patients were discharged in less than 6 h, 45 patients between 6 and 12 h and 46 patients greater than 12 h. A total of 61 patients were discharged on the same day as surgery and 49 were discharged the next day. There were 11 postoperative complications. No postoperative complications were found in patients discharged less than 6 hours from surgery. For patients discharged between 6 and 12 hours postoperatively, one patient returned to the office earlier than scheduled. The result of our review suggests that patients can be safely discharged within the 12-h postoperative period with no increased risk of complications. This is contingent upon the patient having a stable neurovascular examination, pain control and caregiver's comfort level. This can decrease medical cost, family stress and burden to the hospital system. Time to discharge should still be evaluated on a case-by-case basis after evaluating medical and social barriers.

Peri-operative Antibiotic Prophylaxis in K-Wire Fixation: A Systematic Review and Meta-analysis

Introduction

There are currently no standardised guidelines on whether antibiotic prophylaxis is required for Kirschner wire (K-wire) fixation to minimise the risk of surgical site infection when used in patients undergoing clean orthopaedic surgery.

Purpose

To compare the outcomes of antibiotic prophylaxis versus no antibiotic in K-wire fixation when used in either in trauma or elective orthopaedics.

Methods

A systematic review and meta-analysis were performed as per the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) Guidelines and a search of electronic information was conducted to identify all randomised controlled trials (RCTs) and non-randomised studies comparing the outcomes of antibiotic prophylaxis group versus those without antibiotic in patients undergoing orthopaedic surgery in which K-wire fixation was used. Incidence of surgical site infection (SSI) was the primary outcome. Random effects modelling was used for the analysis.

Results

Four retrospective cohort studies and one RCT were identified with a total of 2316 patients. There was no significant difference between the prophylactic antibiotic and no antibiotic groups in terms of incidence of SSI (odds ratio [OR] = 0.72, P = 0.18).

Conclusions

There is no significant difference in administering peri-operative antibiotics for patients undergoing orthopaedic surgery using K-wire.

Adolescent elbow osteochondral lesions following prior elbow fracture pinning

PURPOSE

Pinning of pediatric elbow fractures has been shown to be a safe procedure with a low complication profile. This study identified patients who underwent cartilage surgery for elbow osteochondral lesions or osteochondritis dissecans who had prior ipsilateral elbow pinning.

METHODS

Records of patients who underwent ipsilateral cartilage surgery for osteochondritis dissecans and prior percutaneous pinning for elbow fractures were identified. Demographics were compiled and the clinical, radiographic, and surgical results were tabulated for patients with at least 1-year of follow-up from initial presentation.

RESULTS

In total, 6/52 (11.5%) pediatric patients from 2012 to 2021 who underwent isolated elbow osteochondritis dissecans surgery (mean age at surgery 13.4 ± 1.5 years) had a history of ipsilateral elbow pinning (mean age at surgery 6.9 ± 2.4 years). Of these, five had a history of a supracondylar fracture while one patient sustained a lateral condyle fracture. Overall, three of six patients had mechanical symptoms at presentation and three had abnormal radiographs. All patients underwent pre-operative magnetic resonance imaging and the five patients with an osteochondritis dissecans lesion <1cm² underwent arthroscopy and microfracture while one with a 4-cm² lesion underwent open osteochondral allograft transfer. All patients demonstrated improved motion at final follow-up and all patients were able to return to full desired activity following surgery.

CONCLUSION

This study demonstrates that the history of elbow fracture pinning may predispose patients to future elbow chondral injuries in adolescence. Although patients appear to do well following consequent osteochondritis dissecans surgery, patients and parents may be advised of possible association of elbow pinning and elbow osteochondral lesions.

LEVEL OF EVIDENCE

III, case-control study.

Comparing exposed and buried Kirschner wires in fixation for pediatric supracondylar humerus fractures: A propensity score-matched study

PURPOSE

To thoroughly compare the outcomes between exposed and buried Kirschner wires (K-wires) in fixation for pediatric supracondylar humerus fractures.

METHODS

We examined patients who underwent surgery at our institution between January 2007 and June 2021. We investigated their age, sex, fracture pattern, number of K-wires used, whether they were exposed or buried, operative time, postoperative complications, number of outpatient visits, duration from surgery to K-wire removal, total length of hospitalization, and perioperative radiographic parameters. After propensity score matching, intergroup comparisons were performed to assess the differences in postoperative complication rate, number of outpatient visits, duration from surgery to K-wire removal, total length of hospitalization, and loss of reduction.

RESULTS

Propensity score matching resulted in 43 pairs in both groups. Although more patients complained of skin irritation in the buried K-wire group, there was more backing out of the K-wire in the exposed K-wire group (p < 0.01). There were no significant differences in other complications. There were more outpatient visits in the buried K-wire group (p < 0.01). The duration from surgery to K-wire removal and the total length of hospitalization were significantly longer in the buried K-wire group (p < 0.01). There was no significant difference in the loss of Baumann's angle (p = 0.61), tilting angle (p = 0.48), or the development of rotation (p > 0.99) between groups.

CONCLUSION

More outpatient visits and longer lengths of hospitalization in the buried K-wire group may lead to increased costs and burden on parents.

The Frequency and Outcomes of Nerve Palsies in Operatively Treated Supracondylar Humerus Fractures

BACKGROUND

A high index of suspicion for nerve palsy is essential in the setting of a displaced supracondylar humerus fracture (SCHF) with careful attention to the examination. We hypothesize that nerve injuries are more prevalent in higher energy type III and flexion SCHFs compared with type II fractures.

METHODS

A retrospective review was performed of 1085 operatively treated SCHFs in pediatric patients, aged 0 to 14 years, between January 1, 2015 and December 31, 2018. There were 979 patients eligible for analysis. Exclusion criteria included follow-up <3 weeks, polytrauma, pathologic fracture, and prior fracture of the ipsilateral elbow.

RESULTS

The overall rate of nerve injury was 10.6% (104/979). A significant difference in the rate of nerve palsy was identified between fracture types: 0.9% type II, 19.3% type III, and 10.7% flexion type SCHFs ( P <0.001). Median nerve palsy was the most common (n=65). An increased rate of ulnar nerve palsy was observed in flexion type SCHFs. The rate of nerve palsy was higher in the medial pin group (14.9%, P =0.035) but no significant association with iatrogenic ulnar nerve palsy was present. In type III and flexion SCHFs, operative time >60 minutes ( P =0.023) and the need for open reduction ( P =0.012) were significantly associated with postoperative nerve palsy. Referral to therapy was required in 30.8% of patients with a nerve palsy compared with 7.9% of patients without ( P <0.001).

CONCLUSION

Longer operative times, need for open reduction, and significantly higher rates of nerve palsy among type III and flexion SCHFs are best explained by the unstable nature of the fracture and greater degree of soft tissue trauma. Given prolonged duration of follow-up and more frequent need for therapy demonstrated in patients with a nerve palsy, these data can be used to improve counseling for families and patients after displaced SCHF.

LEVEL OF EVIDENCE

Level III-retrospective comparative study.

Systematic literature review on surgical site preparation in paediatric surgery

Background

Surgical site infections (SSIs) in children represent a common and serious postoperative complication. Surgical skin preparation is an essential preventive measure in every surgical procedure. The most commonly used antiseptic agents for surgical skin preparation are chlorhexidine gluconate and iodophors in alcohol-based solutions. In adult patients the use of chlorhexidine-containing antiseptic solutions for preoperative skin preparation has been advocated to reduce SSI rates. Our objective was to conduct a systematic literature review on use of antiseptic agents for surgical skin preparation in children less than 16 years of age.

Methods

A systematic review of MEDLINE, EMBASE, CINAHL and CENTRAL was performed using both MeSH and free text terms and using the relevant Cochrane filter to identify full text randomized trials (RCTs) and comparative observational studies. Interventions of interest were the choice of main agent in antiseptic solutions (chlorhexidine/povidone-iodine/alcohol) compared with each other or with other antiseptic agents. Primary outcome was the reported rate of surgical site infections.

Results

In total 8 studies were included in the review; 2 RCTs and 6 observational studies. Observational studies generally did not primarily investigate the association of different antiseptics with subsequent SSI. The identified randomised controlled trials included only 61 children in total, and were of low quality. Consequently, we did not conduct a formal meta-analysis. Since the publication of a comprehensive systematic review of perioperative measures for the prevention of SSI in 2016, no randomized controlled trials comparing antiseptic agents for surgical skin preparation in paediatric surgery have been conducted.

Conclusion

Robust evidence on the optimal skin antisepsis to reduce SSIs in children is lacking. Direct extrapolation of effects from trials involving adults is not appropriate as physiologic characteristics and risk factors for SSIs differ between adults and children. It is therefore essential to conduct high quality RCT investigating interventions to identify optimal measures to reduce SSI rates in children.

Trial registration

Prospero registration (CRD42020166193).

Supplementary Information

The online version contains supplementary material available at 10.1186/s12887-022-03502-z.

Hold the Antibiotics: Are Preoperative Antibiotics Unnecessary in the Treatment of Pediatric Supracondylar Humerus Fractures?

BACKGROUND

Supracondylar humerus (SCH) fracture is the most common elbow injury in children and often treated with closed reduction and percutaneous pinning (CRPP). There is little published evidence supporting or refuting the use of perioperative prophylactic antibiotics for SCH CRPP in the pediatric population. The purpose of this study is to evaluate the rate of surgical site infection for patients with and without preoperative antibiotics.

METHODS

A retrospective chart review was conducted of patients less than or equal to 16 years from 2012 to 2018 who underwent primary CRPP. Open fractures, multilimbed polytraumas, and immunodeficient patients were excluded. Infection rates were compared using a noninferiority test assuming a 3% infection rate and a predefined noninferiority margin of 4%. A total of 255 patients were needed to adequately power the study.

RESULTS

Of the 1253 cases identified, 845 met eligibility criteria. A total of 337 received antibiotics, and 508 did not. Preoperative nerve injury (P=0.0244) and sterilization technique (P<0.0001) were associated with antibiotic use: 4 patients developed an infection; there were successfully treated superficial infections, and 1 was a deep infection requiring a formal debridement. There were 8 patients that had a recorded mal-union, and 6 patients required additional procedures; 1 patient had a postoperative compartment syndrome on postoperation day 1. The infection rates among patients treated with and without antibiotics were 0.60% and 0.40%, respectively. The absence of antibiotics was not clinically inferior to using antibiotics (P=0.003).

CONCLUSIONS

Infection remains a rare complication following CRPP of SCH fractures. According to our current data, not giving perioperative antibiotics was not inferior to using perioperative antibiotics for preventing superficial or deep infection in patients undergoing CRPP of SCH fractures. With the increase in attention to antibiotic stewardship, it is important to eliminate unnecessary antibiotic use while continuing to maintain a low rate of surgical site infection.

LEVEL OF EVIDENCE

Level IV-case series. This is a therapeutic study that investigates the results from a case series.

Functional and radiological outcomes of different pin configuration for displaced pediatric supracondylar humeral fracture: A retrospective cohort study

BACKGROUND

The most widely accepted treatment for pediatric supracondylar humeral fracture is closed reduction and percutaneous pinning (CRPP). However, there is debate regarding the technique that is utilized, whether crossed or lateral pinning, and the number of pins used.

AIM

To compare the functional and radiological outcomes of lateral and cross pinning in the management of humeral supracondylar fracture.

METHODS

A retrospective analysis was performed on 101 patients who were surgically managed by either one of the CRPP techniques from 2015 to 2019. Several clinical parameters were taken into account, including pre- and post-intervention Baumann angle, as well as scores for pain, range of motion, function, and stability. Statistical analysis was performed to study the outcomes of the utilized techniques.

RESULTS

Amongst our study sample, which included 63 males and 38 females with a mean age of 5.87 years, about one-third of the patients underwent crossed pinning fixation configuration and the remaining two-thirds were managed by lateral pinning configuration. Similar results were obtained in the two groups with no statistical difference regarding Mayo elbow performance scores (MEPS) and Baumann angle. The mean MEPS in the lateral and crossed pinning groups were 93.68 + 8.59 and 93.62 + 9.05, respectively. The mean Baumann angle was 72.5° + 6.46 in the lateral group and 72.3° + 4.70 in the crossed-pinning group (P = 0.878).

CONCLUSION

Both lateral pinning and crossed pinning fixation configuration for displaced pediatric supracondylar humeral fractures provide similar functional and radiological outcomes.

Subtrochanteric Insufficiency Fracture Occurring 5 Years after Surgery at the Steinmann Pin Insertion Site for Fracture Reduction

Background and Objectives: Steinmann pins are commonly used in orthopedics, with a low rate of complications. However, thermal osteonecrosis may occur when a pin is inserted using a drill. There have been no reports on late-onset fractures at the Steinmann pin insertion site. Materials and Methods: A 32-year-old man who underwent surgery for a femoral shaft fracture 5 years ago complained of proximal thigh pain 1 month after the removal of the internal device. On physical examination, the patient showed a limping gait due to pain, and tenderness was observed on the lateral aspect of the proximal thigh. Magnetic resonance imaging was performed because the symptoms did not improve, despite conservative treatment. A new fracture line was observed in the lateral cortical bone of the proximal femur. It was found that a fracture occurred at the site where the Steinmann pin was inserted for a closed reduction at the time of the first operation. The patient was instructed to limit weight bearing and to use crutches while walking. Parathyroid hormone was additionally administered to promote bone formation. Results: Six months after diagnosis, a complete union was achieved at the subtrochanteric fracture site, and the patient’s pain subsided. Conclusions: A fracture that occurs as a late onset at the provisional Steinmann pin insertion site is an extremely rare complication; however, orthopedic surgeons must consider this possibility and make more efforts to lower the occurrence of thermal damage. In addition, if the patient complains of pain in the region where the pin was inserted after surgery, surgeons should spare no effort to determine whether a new fracture has occurred.

A Mini-Open Approach to Medial Pinning in Pediatric Supracondylar Humeral Fractures May Be Safer Than Previously Thought

BACKGROUND

Displaced pediatric supracondylar humeral fractures (SCHFs) are stabilized after reduction by smooth pins. Although some SCHFs are biomechanically stable after lateral-only entry pinning (lateral pinning), an additional medial entry pin (cross-pinning) confers superior stabilization in some SCHFs. There is a recognized risk of iatrogenic ulnar nerve injury with medial entry pinning. The best existing evidence has estimated an iatrogenic ulnar nerve injury rate of approximately 3.4% in cross-pinning. In similar studies, the rate of iatrogenic nerve injury (all nerves) in lateral pinning is estimated at 1.9%. This study aimed to use a large, single-center, single-technique (mini-open) retrospective case series to determine the rate of iatrogenic ulnar nerve injury in cross-pinning.

METHODS

Patients undergoing percutaneous cross-pinning via the mini-open technique for SCHFs from 2007 to 2017 were retrospectively reviewed. Injury characteristics, operative variables, fixation technique, and complications, such as iatrogenic nerve injury, were recorded. Patients who underwent operative treatment at another hospital, had no postoperative follow-up, or died due to polytrauma were excluded.

RESULTS

In this study, 698 patients undergoing cross-pinning during the study period were identified. Patients treated with cross-pinning had severe fractures, including a total of 198 preoperative neurovascular injuries (28.4%), 32 patients (4.6%) with skin tenting, and 19 patients (2.7%) with open fractures. Iatrogenic nerve injury was reported in 3 cases (0.43%), all of which affected the ulnar nerve. In 2 of 3 cases of iatrogenic nerve injury, the ulnar nerve symptoms resolved at a mean follow-up of 15 weeks.

CONCLUSIONS

The mini-open approach for medial pin insertion is safer than previous estimates. Here, in the largest single-center study of cross-pinning for SCHFs, the iatrogenic ulnar nerve injury rate of 0.43% was nearly 10 times lower than estimated rates from recent meta-analyses. Considering all nerves, the iatrogenic injury rate for this cross-pinning cohort was also lower than the estimated iatrogenic nerve injury rate for lateral pinning.

LEVEL OF EVIDENCE

Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.

Complications With Surgical Treatment of Pediatric Supracondylar Humerus Fractures: Does Surgeon Training Matter?

INTRODUCTION

National trends reveal increased transfers to referral hospitals for surgical management of pediatric supracondylar humerus (SCH) fractures. This is partly because of the belief that pediatric orthopaedic surgeons (POs) deliver improved outcomes compared with nonpediatric orthopaedic surgeons (NPOs). We compared early outcomes of surgically treated SCH fractures between POs and NPOs at a single center where both groups manage these fractures.

METHODS

Patients ages 3 to 10 undergoing surgery for SCH fractures from 2014 to 2020 were included. Patient demographics and perioperative details were recorded. Radiographs at surgery and short-term follow-up assessed reduction. Primary outcomes were major loss of reduction (MLOR) and iatrogenic nerve injury (INI). Complications were compared between PO-treated and NPO-treated cohorts.

RESULTS

Three hundred and eleven fractures were reviewed. POs managed 132 cases, and NPOs managed 179 cases. Rate of MLOR was 1.5% among POs and 2.2% among NPOs (P=1). Rate of INI was 0% among POs and 3.4% among NPOs (P=0.041). All nerve palsies resolved postoperatively by mean 13.1 weeks. Rates of reoperation, infection, readmission, and open reduction were not significantly different. Operative times were decreased among POs (38.1 vs. 44.6 min; P=0.030). Pin constructs were graded as higher quality in the PO group, with a higher mean pin spread ratio (P=0.029), lower rate of "C" constructs (only 1 "column" engaged; P=0.010) and less frequent crossed-pin technique (P<0.001). Multivariate analysis revealed minimal positive associations only for operative time with MLOR (odds ratio=1.021; P=0.005) and INI (odds ratio=1.048; P=0.009).

CONCLUSIONS

Postsurgical outcomes between POs and NPOs were similar. Rates of MLOR were not different between groups, despite differences in pin constructs. The NPO group experienced a marginally higher rate of INI, though all injuries resolved. Pediatric subspecialty training is not a prerequisite for successfully treating SCH fractures, and overall value of orthopaedic care may be improved by decreasing transfers for these common injuries.

LEVEL OF EVIDENCE

Level III-retrospective cohort study.

Late Deep Infections Complicating Percutaneous Pinning of Supracondylar Humerus Fractures

Objectives

Complications following treatment of supracondylar humerus fractures are typically seen shortly postoperatively. Late complications occurring years after percutaneous pinning are rare but can be indolent and have permanent sequelae. We present cases of children presenting with late deep infections to discuss their diagnosis and treatment.

Methods

After institutional review board approval, we retrospectively reviewed records of three children who developed deep infections at least one year after percutaneous pinning of their supracondylar humerus fracture. Patient details and outcomes were analyzed. Radiographs and magnetic resonance imaging were reviewed along with each patient's clinical course and treatment.

Results

We report 3 cases of osteomyelitis and/or septic arthritis presenting at least one year after supracondylar humerus fractures treated with closed reduction and percutaneous pinning. The patients required several irrigation and debridement procedures with placement of antibiotic beads in addition to a prolonged course of antibiotics.

Conclusion

Delayed deep infections can occur after closed reduction and percutaneous pinning of supracondylar humerus fractures in children. Vigilance is required to diagnose and treat such occurrences, and prolonged follow-up is needed to monitor for recurrent or intractable infections.

Efficacy of Antibiotics in Supracondylar Fractures

BACKGROUND

Controversy exists surrounding antibiotic use in the setting of pediatric supracondylar humerus fractures treated with closed reduction and percutaneous Kirschner wire (K-wire) fixation. While the reported incidence of infection in the literature is low, surgeons frequently administer preoperative antibiotics. The purpose of this study was to retrospectively review preoperative antibiotic use and incidence of infection in children with supracondylar humerus fractures treated with closed reduction and K-wire fixation. It was hypothesized that antibiotic administration will not affect the incidence of infection following this procedure.

METHODS

We performed a retrospective review of 1053 patients with supracondylar humerus fractures treated with closed reduction and K-wire fixation at 3 institutions between 2006 and 2016. Patient demographics, antibiotic administration and follow-up data were reviewed in 905 patients.

RESULTS

Of 905 patients, 755 patients received preoperative antibiotics and 150 patients did not. The incidence of infection was 2.5% (n=22) in the group that received preoperative antibiotics and 2.0% in the group that did not receive antibiotics with an overall incidence of infection of 2.4%. The difference between groups did not reach significance (P>0.5). The majority of infections were treated with oral antibiotics with or without early pin removal. Four patients, all in the preoperative antibiotic group, required surgical debridement and intravenous antibiotics.

CONCLUSIONS

Retrospective review of the incidence of infection in closed reduction and percutaneous pinning of supracondylar humerus fractures found no difference between patients who received preoperative antibiotics and those who did not receive preoperative antibiotics.

LEVEL OF EVIDENCE

Level III-therapeutic.

Compartment Syndrome in Children With a Supracondylar Fracture: Not Everyone has Risk Factors

OBJECTIVES

To clarify the incidence, associated conditions, and timing of fasciotomy for compartment syndrome (CS) in children with a supracondylar (SC) fracture of the humerus.

DESIGN

A retrospective trauma system database study.

SETTING

Accredited trauma centers in Pennsylvania.

PATIENTS

A statewide trauma database was searched for children 2-13 years of age admitted with a SC fracture between January 2001 and December 2015. Four thousand three hundred eight children met inclusion criteria.

INTERVENTION

Treatment of a SC fracture.

MAIN OUTCOME MEASUREMENT

Diagnosis of CS/performance of a fasciotomy.

RESULTS

During the study period, 21 (0.49%) children admitted with a SC fracture of the humerus were treated with fasciotomy. CS/fasciotomy was more likely in males (P = 0.031), those with a nerve injury (P = 0.049), and/or ipsilateral forearm fracture (P < 0.001). Vascular procedure, performed in 18 (0.42%) children, was strongly associated with CS/fasciotomy (P < 0.001). Closed reduction and fixation of a forearm fracture was associated with CS (P = 0.007). Timing of SC fracture treatment did not influence outcome. Fasciotomy was performed subsequent to reduction in 13 subjects; mean interval between procedures was 23.4 hours (r = 4.5-51.3).

CONCLUSIONS

Risk factors for CS exist; however, they are not required for the condition to develop. CS may develop subsequent to admission and/or SC fracture treatment. In timing of operative management and hospitalization, the results support contemporary practice.

LEVEL OF EVIDENCE

Prognostic Level III. See Instructions for Authors for a complete description of levels of evidence.

Pediatric Supracondylar Humerus Fracture Outcomes by Pediatric and Nonpediatric Orthopedists

Pediatric supracondylar humerus fractures are common and often require surgical intervention by an orthopedic surgeon, who may or may not have pediatric subspecialty training. This study used a large national database to assess for potential differences in perioperative outcomes for pediatric supracondylar humerus fractures treated by pediatric and nonpediatric orthopedists. A retrospective comparative cohort analysis was performed using data from the National Surgical Quality Improvement Project-Pediatric (NSQIP-P) database 2012 to 2017. Patients 1 to 11 years old were assessed. Demographics, comorbidities, and the incidence of adverse outcomes were compared between pediatric and nonpediatric orthopedists using multivariate analysis controlling for patient characteristics. A total of 15,831 patients were included in the study. Of these, 85.2% were treated by pediatric orthopedists and 14.8% were treated by nonpediatric orthopedists. Demographics, comorbidity burden, operative time, and hospital length of stay were not significantly different between the study groups. With multivariate analysis controlling for patient factors, no differences were identified for 30-day adverse events, reoperation, or readmission whether surgery was performed by pediatric or nonpediatric orthopedists. Considering self-selection of surgeons who perform surgery for pediatric supracondylar humerus fractures, no differences in hospital or general outcome metrics were identified based on who performed these procedures. [Orthopedics. 2021;44(2):e203-e210.].

Sagittal plane alignment affects the strength of pin fixation in supracondylar humerus fractures

Closed reduction with percutaneous pin fixation is commonly used to treat pediatric supracondylar humerus fractures. Various pin configurations of varying biomechanical strength have been described. However, to our knowledge, no biomechanical study has focused on pin alignment in the sagittal plane. Our goal was to compare the stability of fixation using 3 different pin constructs: 3 lateral pins diverging in the coronal plane but parallel in the sagittal plane (3LDP), 3 lateral pins diverging in the coronal and sagittal planes (3LDD), and 2 crossed pins (1 medial and 1 lateral).Transverse fractures were made through the olecranon fossa of 48 synthetic humeri, which were then reduced and pinned in the 3LDP, 3LDD, and crossed-pin configurations (16 specimens per group) using 1.6-mm Kirschner wires. The sagittal plane pin spread was significantly greater in the 3LDD group than in the 3LDP group, whereas we found no difference in the coronal plane. Sagittal extension testing was performed from 0° to 20° at 1°/s for 10 cycles using a mechanical torque stand. The torque required to extend the distal fragment 20° from neutral was compared between groups using one-way analysis of variance with multiple comparison post-hoc analysis. P values ≤.05 were considered significant.The 3LDD configuration was more stable than the 3LDP and crossed-pin configurations. The mean torque required to displace the pinned fractures was 5.7 Nm in the 3LDD group versus 4.1 Nm in the 3LDP group and 3.7 Nm in the crossed-pin group (both, P < .01). We found no difference in stability between the 3LDP and crossed-pin groups (P = .45).In a synthetic biomechanical model of supracondylar humerus fracture, sagittal alignment influenced pin construct stability, and greater pin spread in the sagittal plane increased construct stability when using 3 lateral pins. The lateral pin configurations were superior in stability to the crossed-pin configuration.Level of Evidence: Level V.

Pain Control and Medication Use in Children Following Closed Reduction and Percutaneous Pinning of Supracondylar Humerus Fractures: Are We Still Overprescribing Opioids?

BACKGROUND

The purpose of this 2-part study is to determine opioid prescribing patterns and characterize actual opioid use and postoperative pain control in children following discharge after closed reduction and percutaneous pinning of a supracondylar humerus fracture.

METHODS

A retrospective study was conducted from 2014 to 2016 to determine pain medication prescribing patterns at a single level 1 trauma center. Next, a prospective, observational study was conducted from 2017 to 2018 to determine actual pain medication use and pain scores in the acute postoperative period. Data were collected through telephone surveys performed on postoperative day 1, 3, and 5. Pain scores were collected using a parental proxy numerical rating scale (0 to 10) and opioid use was recorded as the number of doses taken.

RESULTS

From 2014 to 2016, there were 126 patients who were prescribed a mean of 47 doses of opioid medication at discharge. From 2017 to 2018, telephone questionnaires were completed in 63 patients. There was no significant difference (P>0.05) in pain ratings or opioid use by fracture type (Gartland), age, or sex. Children required a mean of 4 doses of oxycodone postoperatively. There were 18 (28%) patients who did not require any oxycodone. On average, pain scores were highest on postoperative day 1 (average 5/10) and decreased to clinically unimportant levels (<1) by postoperative day 5. Acetaminophen and ibuprofen were utilized as first-line pain medications in only 25% and 9% of patients, respectively. Two of 3 patients who used >15 oxycodone doses experienced a minor postoperative complication.

CONCLUSIONS

Pediatric patients have been overprescribed opioids after operative treatment of supracondylar humerus fractures at our institution. Families who report pain scores >5 of 10 and/or persistent opioid use beyond postoperative day 5 warrant further clinical evaluation. Two of 3 pain outliers in this study experienced a minor postoperative complication. With appropriate parental counseling, satisfactory pain control can likely be achieved with acetaminophen and ibuprofen for most patients. If oxycodone is prescribed for breakthrough pain, then the authors recommend limiting to <6 doses.

LEVEL OF EVIDENCE

Level IV-observational, cohort study.

'Does compliance with BOAST guidelines matter for displaced supracondylar fractures in children?': the experience of a tertiary referral major trauma centre over a 3.5-year period

Supracondylar fractures are the most frequently occurring paediatric fractures about the elbow and can be associated with neurovascular injury. For that reason, the British Orthopaedic Association has published the British Orthopaedic Association Standards for Trauma (BOAST) 11 guidelines, aiming to the best management of supracondylar fractures. The aim of this study was to assess adherence to the BOAST 11 guidelines for displaced supracondylar fractures at a Major Trauma Centre in London, UK between 2015 and 2018 and to see whether adherence to guidelines affected the outcomes. A retrospective review was carried out between January 2015 and August 2018 of all paediatric patients who underwent either closed reduction and percutaneous pinning or open reduction and fixation for a displaced supracondylar fracture of the humerus. One hundred nine patients between 1 and 16 years of age with isolated displaced extension type supracondylar fractures (Gartland II, III and IV) were included in the study. The current study did not manage to achieve complete compliance with the BOAST 11 guidelines. K-wire size, fixation technique and pre-, intra-, postoperative documentation were the most important points of lack of compliance. However, deviating from specific guidelines did not cause any adverse clinical outcomes. Lack of correct documentation either preoperatively or postoperatively could be detrimental to patient outcome, especially with respect to neurovascular status. Implementation of a clerking template for use in the electronic medical records for all children with displaced supracondylar fractures is of value in order to improve our documentation.

Supracondylar Fractures: A Retrospective Chart Review Comparing Infection Rate, Antibiotic Use, Surgical Time and Cost of Full Surgical Preparation and Draping vs "Semi-Sterile" Technique

Background

Semi-sterile and full preparation and draping techniques are commonly used in closed reduction percutaneous pinning (CRPP) of supracondylar fractures. Debate exists whether full preparation and draping is safer than semi-sterile technique in regards to infection risk and the utility of pre-operative antibiotics. This study is a comparison of infection rates, pre-operative antibiotic administration, cost and surgical time between techniques.

Methods

A retrospective chart review of 336 pediatric patients with supracondylar fractures repaired with CRPP at our institution was completed between January 2014 and April 2018, 168 per technique. Infection rates, pre-operative antibiotic administration, preparation-to-incision time and cost in semi-sterile draping versus full preparation and draping techniques were compared.

Results

Of the 336 patients, 1/168 (0.1%) in the full preparation and draping group developed an infection compared to 0/168 (0%) patients in the semi-sterile group. Pre-operative antibiotics (Cefazolin) were administered to 76/168 (23%) patients in the full preparation and draping group and 0/168 (0%) in the semi-sterile group. The infection found received pre-operative antibiotics. Mean preparation-to-incision time for the semi-sterile group was 2.4±2.0 minutes and the full preparation and draping group was 9.9 ±4.2 minutes (p <0.001). Surgical supply cost was $80.72 [CDN] and 108.24$ [CDN], respectively, for the semi-sterile and full preparation and draping groups.

Conclusion

Risk of infection using a semi-sterile draping technique was safe and comparable to a full preparation and draping technique when used in CRPP of supracondylar fractures. The administration of pre-operative antibiotics does not appear to make a difference in infection rates. Semi-sterile operative technique is cost effective and has decreased preparation-to-incision time.

Open Reduction of Neglected Supracondylar Humeral Fractures With Callus Formation in Children

BACKGROUND

The standard treatment for supracondylar humeral fractures (SHFs) in children is closed reduction and percutaneous Kirschner (K)-wire fixation. In patients who present >14 days after injury and show callus formation, this procedure cannot be performed. There are 2 options in these cases: functional exercises with osteotomy performed at a later stage if cubitus varus is present, or immediate open reduction and percutaneous K-wire fixation. This study aimed to evaluate the outcomes of K-wire fixation through an anterior approach in children with neglected SHF and identify factors predicting the outcomes.

METHODS

This retrospective study assessed the files of 32 children treated for neglected SHF at our hospital between June 2015 and May 2018. An incision was made along the anterior transverse groove of the elbow. The callus was removed, the fracture was reduced, and K-wire fixation was performed. The outcome evaluation included the radiological Baumann angle, pin fixation construct, carrying angles, and the functional outcome was Mayo Elbow Performance Score and Flynn criteria. Binary regression analysis compared the functional outcome as the dependent variable with age, time from injury to operation, operation time, and the amount of callus.

RESULTS

The interval between injury and operation was 14 to 40 days (average, 22.4 d). Patients were followed for 12 to 36 months (average, 21.5 mo). Fracture healing took 5 to 8 weeks (average, 6.6 wk). No patient had a vascular injury or compartment syndrome. Twelve patients were intraoperatively assessed for radial and median nerve injury. No nerve repair was required. All nerve injuries recovered within 3 months. No iatrogenic ulnar nerve injury occurred. One patient had an infected incision. Binary regression analysis showed that the time elapsed between injury and operation (P=0.033) and Gartland type (P=0.008) were inversely correlated with outcomes; the longer the duration, the poorer the outcomes.

CONCLUSIONS

The functional outcomes after open reduction and K-wire fixation through an anterior approach were poorer with longer time to surgery and Gartland type.

LEVEL OF EVIDENCE

Level III.

Doing Our Part to Conserve Resources: Determining Whether All Personal Protective Equipment Is Mandatory for Closed Reduction and Percutaneous Pinning of Supracondylar Humeral Fractures

BACKGROUND

Closed reduction and percutaneous pinning (CRPP) of supracondylar humeral fractures is one of the most common procedures performed in pediatric orthopaedics. The use of full, standard preparation and draping with standard personal protective equipment (PPE) may not be necessary during this procedure. This is of particular interest in the current climate as we face unprecedented PPE shortages due to the current COVID-19 pandemic.

METHODS

This is a retrospective chart review of 1,270 patients treated with CRPP of a supracondylar humeral fracture at 2 metropolitan pediatric centers by 10 fellowship-trained pediatric orthopaedic surgeons. One surgeon in the group did not wear a mask when performing CRPP of supracondylar humeral fractures, and multiple surgeons in the group utilized a semisterile preparation technique (no sterile gown or drapes). Infectious outcomes were compared between 2 groups: full sterile preparation and semisterile preparation. We additionally analyzed a subgroup of patients who had semisterile preparation without surgeon mask use. Hospital cost data were used to estimate annual cost savings with the adoption of the semisterile technique.

RESULTS

In this study, 1,270 patients who underwent CRPP of a supracondylar humeral fracture and met inclusion criteria were identified. There were 3 deep infections (0.24%). These infections all occurred in the group using full sterile preparation and surgical masks. No clinically relevant pin-track infections were noted. There were no known surgeon occupational exposures to bodily fluid. It is estimated that national adoption of this technique in the United States could save between 18,612 and 22,162 gowns and masks with costs savings of $3.7 million to $4.4 million annually.

CONCLUSIONS

We currently face critical shortages of PPE due to the COVID-19 pandemic. Data from this large series suggest that a semisterile technique during CRPP of supracondylar humeral fractures is a safe practice. We anticipate that this could preserve approximately 20,000 gowns and masks in the United States over the next year. Physicians are encouraged to reevaluate their daily practice to identify safe opportunities for resource preservation.

LEVEL OF EVIDENCE

Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence.

The Reverse Oblique Supracondylar Humerus Fracture: Description of a Novel Fracture Pattern

BACKGROUND

Sagittal profile descriptions of supracondylar humerus fractures are limited. We describe a reverse oblique (RO) pattern in which the distal fragment has a prominent anterior spike that is displaced posterior to the proximal fragment. This pattern presents a challenge during closed manipulation utilizing traditional reduction maneuvers. The purpose of this study is to compare the clinical and radiographic characteristics of the RO and non-RO patterns of supracondylar humerus fractures. We hypothesized that the RO pattern would be associated with greater soft tissue trauma.

METHODS

Retrospective evaluation of operative supracondylar humerus fractures treated at a tertiary pediatric hospital from 2014 to 2016. Patients were categorized into RO and non-RO groups for analysis. Associated neurovascular injuries were compared between groups.

RESULTS

Two hundred ninety-nine consecutive patients were reviewed. The RO fracture pattern was seen in 12 patients. All displaced RO fractures were able to be closed reduced with a modification to the traditional reduction sequence. Overall cohort rates of preoperative soft tissue injury included antecubital ecchymosis 16.8%, nerve palsies 15%, and vascular compromise 6.4%. Compared with non-RO fractures, the RO fracture group had significantly higher rates of anterior interosseous nerve (AIN) palsies (P=0.013), antecubital ecchymosis (P=0.018), and compartment syndrome (P=0.043). When comparing RO with non-RO type II fractures, there were no differences in soft tissue injury (P=0.439). Compared with non-RO type III fractures, RO type III fractures had higher rates of AIN injury (P=0.047), antecubital ecchymosis (P=0.007), and overall soft tissue injury (P=0.009).

CONCLUSIONS

This study introduces a previously undescribed supracondylar humerus fracture subtype: the RO fracture. We found increased rates of soft tissue compromise including antecubital ecchymosis and AIN palsy in this fracture type. Further, traditional reduction methods proved to be ineffectual for this fracture pattern. We utilized a simple modification that allowed for closed reduction and percutaneous pinning of displaced RO fractures.

LEVEL OF EVIDENCE

Level III-prognostic.

Inpatient Versus Outpatient Treatment of Gartland Type II Supracondylar Humerus Fractures: A Cost and Safety Comparison

BACKGROUND

In an effort to increase health care value, there has been a recent focus on the transition of traditionally inpatient procedures to an outpatient setting. We hypothesized that in the treatment of Gartland extension type II supracondylar humerus fractures (SCHF), outpatient surgery can be performed safely and with similar clinical and radiographic outcomes compared with urgent inpatient treatment with an overall reduction in cost.

METHODS

We compared a prospective cohort of Gartland type II SCHF treated primarily as outpatients (postprotocol) to a retrospective cohort treated primarily as urgent inpatients (preprotocol), excluding patients with preoperative neurovascular injury, open fracture, additional ipsilateral upper extremity fracture, and prior ipsilateral SCHF. Inpatient versus outpatient treatment was also compared. Outcomes including perioperative factors, complications, readmission, reoperation, postoperative radiographic measurements, and direct hospital costs underwent univariate and multivariate analyses.

RESULTS

A total of 220 patients in the postprotocol cohort (88 inpatients and 132 outpatients) and 129 in the preprotocol cohort (97 inpatients and 32 outpatients) were analyzed. There were no differences in operative times, number of pins, conversion to open reductions, readmissions, or reoperations between cohorts or groups, and no cases developed postoperative neurovascular injuries or compartment syndromes. Total complications did not differ between the preprotocol and postprotocol cohorts; however, were higher in the inpatient group (3.8% vs. 0%; P=0.016) in the univariate, but not multivariate analysis. There were no differences in Baumann angle or humerocondylar angle. Significantly more inpatients' anterior humeral line fell outside of the middle third of the capitellum in the univariate, but not multivariate analysis. There were significant reductions in total cost per patient between the preprotocol and postprotocol cohorts (marginal effect, -$215; P<0.0001) and between the inpatient and outpatient groups (marginal effect, -$444; P<0.0001).

CONCLUSIONS

Delayed treatment of Gartland type II SCHF in the outpatient setting can be performed safely and with similar clinical and radiographic outcomes to those treated urgently as inpatients with a significant cost reduction.

LEVEL OF EVIDENCE

Therapeutic level III-retrospective comparative study.

The Safety and Benefits of the Semisterile Technique for Closed Reduction and Percutaneous Pinning of Pediatric Upper Extremity Fractures

Background: Closed reduction and percutaneous pinning (CRPP) is traditionally performed following full surgical prep and draping. The semisterile technique utilizes minimal prep and draping, which was proven to be a viable alternative when treating pediatric supracondylar humerus fractures. The purpose of this study was to investigate the safety and benefits of the semisterile technique for CRPP of pediatric upper extremity fractures. Methods: A retrospective cohort study was conducted of pediatric patients who underwent CRPP of an upper extremity fracture over a 4-year period. Demographic data, fracture type/location, and the type of prep technique (full-prep vs semisterile) were recorded. Qualities of intraoperative care were assessed, and postoperative care parameters were compared. Patient outcomes for the 2 techniques were compared using bivariate analyses. Results: In total, 219 patient records were reviewed including 160 in the semisterile group and 59 in the full-prep group. When comparing intraoperative parameters between the full-prep and semisterile techniques, the average room setup time was similar (20.6 vs 18.8 minutes, P = .52). However, the procedure times (32.1 vs 26.9 minutes, P = .04) were significantly shorter in the semisterile group. Nearly a 10-minute decrease in total time in the operating room was present while utilizing the semisterile technique (62.8 vs 53.6 minutes, P < .01). There were no statistical differences in complication rates between prep groups (P = .31), and there were no infections while utilizing the semisterile technique. Conclusions: The semisterile technique is a safe and efficient alternative that may be used when performing CRPP of pediatric upper extremity fractures.

Factors influencing the complication rate in pediatric supracondylar humerus fractures

The aim of the study was to identify influencing factors on the complication rate in pediatric supracondylar humerus fractures (PSHF). 22 male and 19 female patients with an extension type PSHF underwent conservative and operative treatment at a single trauma department and were reviewed retrospectively. The complications were assessed and the groups of patients with and without complications were compared according to patient- and therapy-related factors. The overall complication rate was 19.5%. Two patients had a primary and 4 patients a postoperative neurological deficit. One patient developed a pin infection after open reduction and crossed pin fixation. One patient underwent early revision surgery because of insufficient initial reduction after closed reduction and crossed pin fixation. All complications appeared in the surgical treatment group. The appearance of complications was significantly associated with a higher Gartland stage. The median time between trauma and operation was significantly longer in patients without compared to patients with complications. PSHF are associated with a high rate of neurological complications. The Gartland stage and the necessity of surgical treatment are the major influencing factors on the complication rate.

Internal Rotation Stress Testing Improves Radiographic Outcomes of Type 3 Supracondylar Humerus Fractures

BACKGROUND

The purpose of this study was to determine if routine use of an intraoperative internal rotation stress test (IRST) for type 3 supracondylar humerus fractures will safely improve maintenance of reduction.

METHODS

An intraoperative protocol for type 3 supracondylar humerus fractures was adopted at our institution, consisting of fracture reduction, placement of 2 laterally based divergent pins, and then an IRST to determine the need for additional fixation with a medial column pin placed through a small open approach. Fractures treated with the prospective IRST protocol were compared with a retrospective cohort before adoption of the protocol (pre-IRST). The primary outcomes were differences in Baumann's angle, lateral humerocapitellar angle, and the rotation index between final intraoperative fluoroscopic images and radiographs at final follow-up. Secondary outcomes were complications such as iatrogenic nerve injury, loss of fixation, or need for reoperation.

RESULTS

There were 78 fractures in the retrospective cohort (pre-IRST) and 49 in the prospective cohort (IRST). Overall rotational loss of reduction (>6%), measured by lateral rotation percentage, and major rotational loss of reduction (>12%) were less common in the IRST cohort (6/49 vs. 27/78, P=0.007 overall; 0/49 vs. 8/78, P=0.02 major loss). There were no major losses of reduction for Baumann's angle (>12 degrees) in either cohort. There were 5 subjects in the pre-IRST cohort (6.4%) with a major loss of reduction of the humerocapitellar angle (>12 degrees) and none in the IRST cohort (P=0.16) Loss of proximal fixation with need for reoperation occurred in 3 fractures in the pre-IRST cohort, and none in the IRST cohort (P=0.28). There were no postoperative nerve injuries in either group.

CONCLUSIONS

Intraoperative IRST after placement of 2 lateral pins assists with the decision for additional fixation in type 3 supracondylar humerus fractures. This method improved the final radiographic rotational alignment, and was safely performed using a mini-open approach for medial pin placement.

LEVEL OF EVIDENCE

Level III-prospective cohort compared with a retrospective cohort.

Conservative versus surgical treatment of Gartland type 2 supracondylar humeral fractures: What can help us choosing?

BACKGROUND

Pediatric supracondylar humeral fractures (PSHF) are most common elbow fractures among children and adolescents. While there is substantial agreement on treating type 1 and type 3 fractures (conservatively and surgically, respectively), the debate on optimal treatment of Gartland type 2 fractures is still open.We wanted to review our cases, analyzing outcomes and seeking for parameters that could help surgeons treating these injuries.

METHODS

We retrospectively reviewed 41 patients treated with reduction and casting (group A) and matched to 38 patients treated with closed reduction and percutaneous pining (CRPP, group B) for Gartland type 2 fractures between 2009 and 2013. At a mean follow-up of more than 6 years patients were analyzed by an accurate clinical exam and evaluation scales. Radiographic parameters at time of cast or pins removal were studied too.

RESULTS

There were no statistically significant differences in clinical exam and evaluation scales between groups. Two patients in group A developed a cubitus varus deformity and one patient in group B had a superficial pin-tract infection. Baumann angle (BA) was out of normal range in two cases of conservative group and anterior humeral line (AHL) bisected capitellum in 42.1% of patients in group A and 73.2% in group B (p < .05).

CONCLUSION

It is reasonable to expect satisfactory outcomes both after conservative and surgical treatment of type 2 fractures, if cornerstones of both treatments are applied. Parameters that should be focused are probably two: complications (2 cases of cubitus varus in group A versus one superificial pin-tract infections in group B) and the better trend in surgical group in regards to loss of flexion and hyperextension of the affected elbow, likely related to the other notable datum, that is the percentage of cases in which AHL bisects capitellum. We think that, in absence of vascolonervous lesions and important swelling, BA and AHL are the most important parameters that can help us choosing the optimal treatment, as clarified in the algorithm we developed.

LEVEL OF EVIDENCE

Level III - retrospective comparative study.

Nonoperative Treatment of Type IIA Supracondylar Humerus Fractures: Comparing 2 Modalities

BACKGROUND

Although the recommended treatment for Gartland types I and III supracondylar humeral fractures is well-established, the optimal treatment for type II fractures without rotational malalignment remains controversial, involving circumferential casting or closed reduction and pinning. Our institution uses pronated flexion-taping for Gartland type IIA fractures. This theoretically removes external pressure secondary to circumferential casting, potentially decreasing risks of compartment syndrome and mitigating loss of reduction with extension while maintaining optimal flexion position for reduction. To our knowledge, these modalities have not yet been compared.

METHODS

A retrospective chart review was performed to compare flexion-taping with cuff-and-collar immobilization versus traditional above-elbow casting at 90 to 100 degrees. It was hypothesized that closed reduction and flexion-taping of type IIA supracondylar fractures under sedation in the emergency department would result in comparable, if not superior, maintenance of reduction measured radiographically using Baumann angle and the lateral humeral capitellar angle (LHCA). Charts from 2010 to 2015 were reviewed for all patients between 2 and 8 years of age with type IIA fractures treated with cast or taping.

RESULTS

A total of 39 patients were included with 16 in the cast group and 23 in the tape group. Mean age was 4.08±1.72 years across both groups. No significant change in either measure was seen at termination of immobilization (3 to 4 wk postreduction). Final lateral humeral capitellar angle in the taping group was 32.14±5.90 degrees compared with 28.23±7.27 degrees in the casting group (P=0.81). Final Baumann angle was 73.41±4.03 degrees in the taping group compared with 73.75±6.46 degrees (P=0.96). The only complication was a self-limiting rash experienced by 1 patient in the taping group.

CONCLUSIONS

Both techniques were able to achieve and maintain adequate reduction in all cases with no significant difference in outcome measures. There were no major complications or conversions to surgical treatment. In this cohort, taping resulted in adequate reduction and safe immobilization for type IIA fractures comparable to cast immobilization. Further research will investigate clinical/radiographic outcomes on these patients to assess remodeling and function.

LEVEL OF EVIDENCE

Level III-retrospective comparative study.

Is less more? Assessing the utility of early clinical and radiographic follow-up for operative supracondylar humerus fractures

PURPOSE

Postoperative protocols following surgical management of supracondylar humerus fractures (SCFs) are often based upon surgeon preference rather than clinical merit. The purpose of this study is to determine the utility of early clinical and radiographic follow-up.

METHODS

A retrospective review of patients who underwent closed reduction and percutaneous pinning (CRPP) for SCF between 2009 and 2015 was performed using a database of prospectively-collected consecutive patient data. Previously undiagnosed neuropathies documented at the first postoperative visit were identified. Unscheduled visits and postoperative complications were compared between patients who were seen at one week and those with delayed first clinic visits.

RESULTS

Of 873 patients, 823 (94.3%) were seen within ten days of surgery (early follow-up) and 50 (5.7%) had a delayed first clinic appointment. Among patients seen for early follow-up, 12 (1.5%) had a previously undocumented neuropathy diagnosed but only eight (1%) had an alteration of management secondary to clinical findings. Greater than 90% of patients seen for early follow-up had radiographs performed, but only one had an alteration in management due to radiographic findings. Patients seen for early follow-up had the same rate of unscheduled visits (2.9% versus 4%, p = 0.66) and postoperative complications (1.6% versus 0%, p > 0.99) as those with delayed first appointments. Radiographic parameters were comparable at final follow-up (Baumann's angle 74.5° versus 73.7°, p = 0.40; lateral humeral condylar angle 40.2° versus 41.2°, p = 0.53).

CONCLUSION

The early follow-up visit after CRPP of SCF rarely leads to alterations in care and does not reduce unscheduled visits or late complications.

LEVEL OF EVIDENCE

Level IV.

Management of supracondylar fractures of the humerus in children

Supracondylar fractures of the humerus are the most frequent fractures of the paediatric elbow, with a peak incidence at the ages of five to eight years.

Extension-type fractures represent 97% to 99% of cases. Posteromedial displacement of the distal fragment is the most frequent; however, the radial and median nerves are equally affected. Flexion-type fractures are more commonly associated with ulnar nerve injuries.

Concomitant upper-limb fractures should always be excluded. To manage the vascular status, distal pulse and hand perfusion should be monitored. Compartment syndrome should always be borne in mind, especially when skin puckering, severe ecchymosis/swelling, vascular alterations or concomitant forearm fractures are present.

Gartland’s classification shows high intra- and inter-observer reliability. Type I is treated with casting. Surgical treatment is the standard for almost all displaced fractures. Type IV fractures can only be diagnosed intra-operatively.

Closed reduction and percutaneous pinning is the gold standard surgical treatment. Open reduction via the anterior approach is indicated for open fractures, absence of the distal vascular flow for > 10 to 15 minutes after closed reduction, and failed closed reduction.

Lateral entry pins provide stable fixation, avoiding the risk of iatrogenic ulnar nerve injury.

About 10% to 20% of displaced supracondylar fractures present with alterations in vascular status. In most cases, fracture reduction restores perfusion.

Neural injuries occur in 6.5% to 19% of cases involving displaced fractures. Most of them are neurapraxias and it is not routinely indicated to explore the nerve surgically.

Cite this article: EFORT Open Rev 2018;3:526-540. DOI: 10.1302/2058-5241.3.170049

Medial comminution as a risk factor for the stability after lateral-only pin fixation for pediatric supracondylar humerus fracture: an audit

Background and purpose

Closed reduction and lateral-only pin fixation is one of the common treatment methods for displaced supracondylar fracture in children. However, several risk factors related to the stability have been reported. The aim of this study was to evaluate the medial comminution as a potential risk factor related to the stability after appropriate lateral-only pin fixation for Gartland type III supracondylar humerus fracture.

Methods

Sixty-seven patients with type III supracondylar fractures who were under the age of 12 years were included. Immediate postoperative and final Baumann and humerocapitellar angles were measured. Pin separation at fracture site was evaluated to estimate the proper pin placement. Presence of the medial comminution was recorded when two pediatric orthopedic surgeons agreed to the loss of cortical contact at the medial column by the small butterfly fragment or comminuted fracture fragments. Factors including age, sex, body mass index, pin number, pin separation at fracture site, and medial comminution were analyzed.

Results

Medial comminution was noted in 20 patients (29.8%). The average pin separation at fracture site was significantly decreased in patients with medial comminution compared to patients without medial comminution (P=0.017). A presence of medial comminution was associated with a 4.151-fold increase in the log odds for the Baumann angle changes of more than average difference between immediate postoperative and final follow-up angle (P=0.020).

Conclusion

When lateral-only pin fixation is applied for Gartland type III supracondylar humerus fracture in children, the medial comminution may be a risk factor for the stability because of the narrow pin separation at fracture site. We recommend additional medial pin fixation for supracondylar humerus fracture with medial comminution.

9 years' follow-up of 168 pin-fixed supracondylar humerus fractures in children

Background and purpose - The long-term outcome of pin-fixed supracondylar humerus fractures (SCHF) in children is not well known. We assessed the 7- to 12-year outcome in 168 children. Patients and methods - During 2002-2006, 210 domestic children (age 7 (1-14) years) with SCHF (Gartland III 79%, Gartland II 19%, and flexion type 2%) were pin fixed in Helsinki. 36 (17%) patients had a nerve palsy. Radiographic alignment was regarded as satisfactory in 81% of patients (Baumann angle (BA) within ±10˚ of normal range and whose anterior humeral line (AHL) crossed the capitulum). After a mean follow-up of 9 (7-12) years, 168 (80%) patients answered a questionnaire regarding elbow appearance (scale 0-10), function (scale 0-10), and pain (scale 0-10), and symmetry of range of motion (ROM) and carrying angle (CA). 65 (31%) patients also attended a clinical follow-up examination. Results - Mean subjective score for appearance was 8.7 (2-10) and for function 9.0 (2-10) (n = 168). Elbow ROM asymmetry was experienced by 28% and elbow CA asymmetry by 17% of the patients. Elbow pain was reported by 14%, and was more common in children with nerve injuries. Long-term outcome was good or excellent in 60/65 and CA in 56/65 of the follow-up visit patients using Flynn's criteria. BA exceeding normal values by 10˚ was associated with lower subjective outcome; AHL crossing point with the capitulum was not associated with outcome. Interpretation - Long-term subjective outcome is satisfactory with few exceptions if elbow ROM and CA are restored within 10° of the uninjured elbow. Radiographs at fracture union have little prognostic value. Nerve injuries can cause long-term pain.

Prophylactic antibiotics in soft-tissue procedures in children with cerebral palsy

PURPOSE

Data on the benefits of perioperative prophylactic antibiotics in the paediatric population are lacking. In this study, we aimed to assess the rate of infection after isolated soft-tissue procedures in patients with cerebral palsy with and without preoperative prophylactic antibiotics between 2009 and 2015.

METHODS

We reviewed the records of all children with cerebral palsy who underwent isolated soft-tissue procedures (on the upper and lower limb) at our hospital between 2009 and 2015. Children with at least 30-day postoperative follow-up were included. Children who had groin incisions were excluded.

RESULTS

Two groups were identified: the antibiotic group (77 children with 203 incisions and 343 procedures) had one surgical site infection; the no-antibiotic group (48 children with 102 incisions and 177 procedures) had no surgical site infections.

CONCLUSION

These results suggest that the use of preoperative antibiotics does not change the rate of postoperative surgical site infections.

LEVEL OF EVIDENCE

Level III therapeutic study.

Supracondylar Humeral Fractures: An Audit of the Frequency of Bi-columnar Fixation and Intra-articular Wire Placement

Introduction For supracondylar humeral (SCH) fractures, biomechanical studies suggest the most stable wire configuration achieves bi-columnar fixation. Achieving medial column fixation using lateral-entry-only wires may require an intracapsular entry point. The aim of this study was to identify the rate of bi-columnar fixation achieved in our department when treating SCH fractures with percutaneous wire fixation. A secondary aim was to identify the rate of placement of an intra-articular wire. Further aims were to examine if failure to achieve bi-columnar fixation was associated with an increased loss of fixation and whether the placement of an intra-articular wire resulted in any cases of deep infection or septic arthritis. Material and methods All Gartland type 3 supracondylar humeral fractures, June 2014 to December 2016, were retrospectively identified. Intra-operative films were reviewed to determine bi-columnar fixation and the presence/absence of an intra-articular wire. Loss of reduction requiring revision and post-operative infections were determined from the electronic patient record. Results Of 49 supracondylar fractures identified, 42 were fixed with lateral-entry only wires (24 with two wires and 18 with three wires), and seven were fixed with medial/lateral cross wires (four with one lateral wire, two with two wires, and one with three wires). Bi-columnar fixation was achieved in 41/49 cases (84%). All cases where bi-columnar fixation was not achieved were fixed with lateral-entry-only wires. One out of 49 fractures (2%) required the revision of fixation at 10 days due to loss of reduction. In this case, the initial fixation was with two lateral-entry-only wires, without bi-columnar fixation. An intra-articular wire was present in 44 out of 49 cases (90%). One out of 49 cases (2%) had a superficial wound infection. There were no cases of deep infection or septic arthritis. Conclusion In our department, the rate of bi-columnar fixation was high and, in this group, no cases required revision fixation. One of eight cases judged to not have bi-columnar fixation initially, required revision due to loss of fixation. We contend that bi-columnar fixation generally achieves a stable wire configuration even using lateral-entry-only wires for SCH fractures. The rate of intra-articular wire placement was high; however, infection rates were low with no cases of septic arthritis.

[Kirschner wire osteosynthesis for fractures in childhood: bury wires or not? : Results of a survey on care reality in Germany]

INTRODUCTION

Kirschner wire osteosynthesis is considered to be the standard technique for surgical fixation of displaced supracondylar humeral and distal radial fractures in children. The Kirschner wires can be left exposed or buried under the skin. Advantages of the epicutaneous technique are, e. g. the efficiency (cost, effort) and the possibility for wire removal without the necessity of a second anesthesia. On the other hand, there is a concern about higher infection rates as well as traumatization of the children due to externally visible wires.

METHODS

A web-based survey of members of the DGU, DGOU, DGOOC, and the pediatric traumatology section of the DGU (SKT) was performed to evaluate current treatment concepts in Germany. The pros and cons for each technique were recorded and the need for a clinical study was examined. In addition, a cost analysis was performed for both methods. The results from the literature are summarized and discussed.

RESULTS

A total of 710 questionnaires were evaluated. The majority of the respondents were trauma surgeons working in a hospital (80%). The buried technique was superior in both fracture groups (supracondylar humeral fractures 73% and distal radius fractures 69%), whereas a relevant difference could be found depending on the profession. The main reason for the subcutaneous technique was anxiety or observed higher infections using the epicutaneous technique.

CONCLUSION

In Germany, the majority of wires are buried under the skin due to a fear of higher infection rates. In addition, other influencing factors such as pain and traditional approaches play a significant role. With respect to the results in the literature as well as a possible improvement of efficiency and avoidance of a second anesthesia, a multicentric clinical study seems necessary in the future to compare both techniques.

The Utility of Routine Postoperative Radiographs After Pinning of Pediatric Supracondylar Humerus Fractures

BACKGROUND

The purpose of this study was to determine the frequency with which postoperative radiographs resulted in a change in management following closed reduction and percutaneous pinning of displaced pediatric supracondylar humerus fractures. We hypothesize that only the initial postoperative radiograph will lead to changes in management of operative supracondylar humerus fractures.

METHODS

A retrospective review was performed at 2 level I pediatric trauma centers. Inclusion criteria were patients below 18 years of age who sustained supracondylar humerus fractures (Gartland type II, III, IV) who were operatively treated from 2008 to 2013 with adequate radiographic follow-up. Patients with flexion type, intra-articular, transphyseal, and open fractures were excluded from the study. Routine radiographs were taken at initial follow-up (1 wk postoperatively) and at pin removal (3 to 4 wk postoperatively).

RESULTS

The final analysis included 572 patients. Initial postoperative radiographs changed treatment in 9 patients (1.6%), including revision surgeries, 2 pin adjustments, and 2 early pin removals. At the time of pin removal, 20 (3.5%) patients required further immobilization. There were no changes to the initial plan for continued nonoperative treatment at final follow-up (6 to 8 wk postoperatively).

CONCLUSIONS

In this large retrospective series of patients treated with closed reduction and percutaneous pinning of displaced supracondylar humerus fractures, radiographs at 3 weeks do not reveal a need to return to the operating room or other significant pathology. These findings suggest that radiographs should be obtained within 7 to 10 days postoperatively for type III fractures and may only need to be repeated if the clinical situation warrants it, such as severe fracture pattern, persistent pain, or clinical deformity.

LEVEL OF EVIDENCE

Level IV-case series.

Pseudomonas aeruginosa Septic Arthritis and Osteomyelitis after Closed Reduction and Percutaneous Pinning of a Supracondylar Humerus Fracture: A Case Report and Review of the Literature

Infectious complications of closed reduction and percutaneous pinning of supracondylar humerus fractures are exceedingly rare. Although postoperative Pseudomonas infection is a feared complication associated with noncompliance and a wet cast, there are no reports in the literature of this occurring. We present the devastating complication of a pediatric patient who developed Pseudomonas aeruginosa subperiosteal abscess, osteomyelitis, and elbow septic arthritis after presenting to the clinic multiple times with a wet cast after closed reduction and percutaneous pinning of a supracondylar humerus fracture. We describe the treatment course for this patient, followed by the sequelae of posterolateral rotary instability. This case not only confirms that patients can get Pseudomonas infections if they get their cast wet but also stresses the importance of patient communication and compliance in preventing unfortunate complications.

Outcomes of Gartland type III supracondylar fractures treated using Blount's method

BACKGROUND

Supracondylar fractures of the elbow with major displacement are usually treated by surgical pinning and less often non-operatively as described by Blount. The objective of this study was to assess the clinical and radiological outcomes of Gartland type III supracondylar fractures treated at least 3 years earlier using Blount's method.

HYPOTHESIS

Blount's method produces good outcomes after more than 3 years when used to treat Gartland type III supracondylar fractures of the humerus.

METHODS

A single-centre retrospective study was done in paediatric patients who were seen within 24hours after sustaining a Gartland type III supracondylar fracture then re-evaluated at least 36 months after treatment. Closed reduction was performed either in the operating room under general anaesthesia or in the radiology suite under procedural sedation. The upper limb was then immobilised for 4 weeks using the cuff-and-collar method described by Blount (mean elbow flexion, 134°). The child was evaluated and radiographs obtained at the outpatient clinic on days 7 and 14. Functional outcomes were assessed using the 1962 SoFCOT criteria and Flynn's criteria and the radiological outcome using Baumann's angle, the humero-condylar angle, and distal fragment rotation. From 2009 to 2013, 22 patients met the inclusion criteria. Mean follow-up was 57 months.

RESULTS

Clinical outcomes assessed using the 1962 SoFCOT criteria were very good in 15 patients and good in the remaining 7 patients. The rate of satisfactory outcomes according to Flynn's criteria was 100%. At last follow-up, mean Baumann's angle was 68°, mean humerocondylar angle was 42°, and 2 patients had residual rotation of the distal fragment.

CONCLUSION

This work confirms the effectiveness of Blount's method for treating Gartland type III supracondylar fractures. We advocate routine first-line treatment of these fractures using Blount's method in the absence of vascular compromise and instability.

LEVEL OF EVIDENCE

IV, retrospective study.

Utility of Postoperative Antibiotics After Percutaneous Pinning of Pediatric Supracondylar Humerus Fractures

BACKGROUND

Pediatric supracondylar humerus fractures are common injuries that are often treated surgically with closed reduction and percutaneous pinning. Although surgical-site infections are rare, postoperative antibiotics are frequently administered without evidence or guidelines for their use. With the increasing prevalence of antibiotic-resistant organisms and heightened focus on health care costs, appropriate and evidence-based use of antibiotics is needed. We hypothesized that postoperative antibiotic administration would not decrease the rate of surgical-site infection.

METHODS

A billing query identified 951 patients with operatively treated supracondylar humerus fractures at our institution over a 15-year period. Records were reviewed for demographic data, perioperative antibiotic use, and the presence of surgical-site infection. Exclusion criteria were open fractures, open reduction, pathologic fractures, metabolic bone disease, the presence of other injuries that required operative treatment, and follow-up <2 weeks after pin removal. χ and Fisher exact test were used to compare antibiotic use to the incidence of surgical-site infection.

RESULTS

Six hundred eighteen patients met our inclusion criteria. Two hundred thirty-eight patients (38.5%) received postoperative antibiotics. Eleven surgical-site infections were identified for an overall rate of 1.8%. The use of postoperative antibiotics was not associated with a lower rate of surgical-site infection (P=0.883). Patients with a type III fracture (P<0.001), diminished preoperative vascular (P=0.001) and neurological status (P=0.019), and postoperative hospital admission (P<0.001) were significantly more likely to receive postoperative antibiotics.

CONCLUSIONS

Administration of postoperative antibiotics after closed reduction and percutaneous pinning of pediatric supracondylar humerus fractures does not decrease the rate of surgical-site infection.

LEVEL OF EVIDENCE

Level III-therapeutic.

Incidence of Treatment for Infection of Buried Versus Exposed Kirschner Wires in Phalangeal, Metacarpal, and Distal Radial Fractures

PURPOSE

To determine whether there is a difference in the incidence of infection between exposed and buried K-wires when used to treat phalangeal, metacarpal, and distal radius fractures.

METHODS

We conducted a retrospective review identifying all patients aged greater than 16 years who underwent fixation of phalangeal, metacarpal, or distal radius fractures with K-wires between 2007 and 2015. We recorded patient demographic data, fracture location, number of K-wires used, whether K-wires were buried or left exposed, and duration of K-wire placement.

RESULTS

A total of 695 patients met inclusion criteria. Surgeons buried K-wires in 207 patients and left K-wires exposed in 488. Infections occurred more frequently in exposed K-wire cases than in buried K-wire ones. Subgroup analysis based on fracture location revealed a significantly increased risk of being treated for infection when exposed K-wires were used for metacarpal fractures.

CONCLUSIONS

Patients with exposed K-wires for fixation of phalangeal, metacarpal, or distal radius fractures were more likely to be treated for a pin-site infection than those with K-wires buried beneath the skin. Metacarpal fractures treated with exposed K-wires were 2 times more likely to be treated for a pin-site infection (17.6% of exposed K wire cases vs 8.7% of buried K wire cases).

TYPE OF STUDY/LEVEL OF EVIDENCE

Therapeutic IV.