Intraoperative assessment of the dorso-ulnar fragment stability with stress fluoroscopy: An observational study.

This study aims to investigate the effectiveness of intraoperative stress radiographs in evaluating the stability and fixation adequacy of the dorso-ulnar fragment (DUF) after volar plate application. Sixty-four patients who underwent open reduction and internal fixation due to comminuted distal radius fracture accompanied by DUF between May 2020 and February 2022 were reviewed retrospectively. Two groups were compared, with and without stress radiographs used in addition to routine fluoroscopic imaging during the surgical treatment of distal radius fractures. DUF sizes and fracture classifications were made according to preoperative computed tomography. Displacement of the DUF, dorsal cortex screw penetration, and the number of screws inserted into the DUF were evaluated on immediate postoperative CT scans and direct radiographs. DUF displacement at the patients' last follow-up was significantly higher in the control group (1.62 mm) than in the additional stress fluoroscopy applied group (0.53 mm). It was observed that the amount of displacement increased as the dorso-volar size of the DUF decreased. No significant difference was observed in dorsal cortex screw penetrations between the 2 groups. In the additional stress fluoroscopy applied group, stabilization rates with at least 1 screw over volar-locking plate for DUF were significantly higher (P < .001). Compared to the stress fluoroscopy group, the change in ulnar variance (P < .001) and volar tilt (P < .001) was significantly higher in the control group in the last follow-up radiography. No significant difference was observed between the implant removal rates of both groups. Evaluation of the stability of the DUF with stress radiographs after fixation is an effective method to reveal the need for additional fixation. Dorsal stress radiographs allow dynamic evaluation of fixation strength.

Benefits of Rib Fixation Utilizing Low-Cost Materials: A Randomized Pilot Trial.

INTRODUCTION: Surgical stabilization of rib fractures (SSRF) using standard rib plating systems has become a norm in developed countries. However, the procedure has not garnered much interest in low-middle-income countries, primarily because of the cost. METHODS: This was a single-center pilot randomized trial. Patients with severe rib fractures were randomized into two groups: SSRF and nonoperative management. SSRF arm patients underwent surgical fixation in addition to the tenets of nonoperative management. Low-cost materials like stainless steel wires and braided polyester sutures were used for fracture fixation. The primary outcome was to assess the duration of hospital stay. RESULTS: Twenty-two patients were randomized, 11 in each arm. Per-protocol analysis showed that the SSRF arm had significantly reduced duration of hospital stay (22.6 ± 19.1 d versus 7.9 ± 5.7 d, P value 0.031), serial pain scores at 48 h and 5 d (median score 5, IQR (3-6) versus median score 7, IQR (6.5-8), P value 0.004 at 48 h and median score 2 IQR (2-3) versus median score 7 IQR (4.5-7) P value 0.0005 at 5 d), significantly reduced need for injectable opioids (9.9 ± 3.8 mg versus 4.4 ± 3.4 mg, P value 0.003) and significantly more ventilator-free days (19.9 ± 8.7 d versus 26.4 ± 3.2 d, P value 0.04). There were no statistically significant differences in the total duration of ICU stay (median number of days 2, IQR 1-4.5 versus median number of days 7, IQR 1-14, P value 0.958), need for tracheostomy (36.4% versus 0%, P value 0.155), and pulmonary and pleural complications. CONCLUSIONS: SSRF with low-cost materials may provide benefits similar to standard rib plating systems and can be used safely in resource-poor settings.

[National competitive bidding analysis of osteosynthesis materials in pediatric patients with femur fractures]. / Análisis de licitación pública nacional de materiales de osteosíntesis en los pacientes pediátricos con fracturas de fémur.

INTRODUCTION: health promotion policy requires the identification of barriers to the adoption of public policies. Paraguay's national healthcare system is inequitable, expensive, and inefficient. The Ministry of Public Health and Social Welfare (MSPyBS) is the entity responsible for covering the needs of a significant portion of the population. In January 2022, the MSPyBS financed the purchase of titanium elastic nails through a National Public Tender for Osteosynthesis Materials (LPN 02/22) to provide them for free in the pediatric service. Using research as a tool, we seek to analyze the impact of the implementation of LPN 02/22 at the Trauma Hospital, believing that this action would help streamline administrative and bureaucratic processes, making them more efficient with the assistance of the hospital's human resources. MATERIAL AND METHODS: a retrospective, analytical, and comparative study conducted at a high-complexity trauma center in Asunción, Paraguay. Patients aged 4 to 14 years with an indication for stabilization with elastic nails were included. Demographic data, the mechanism of injury, time elapsed from hospital arrival to surgical treatment, length of hospital stay, and the average hospital cost were analyzed based on the daily expense of pediatric patient hospitalization. RESULTS: 52 patients, divided into 25 cases in 2021 before implementation and 27 cases after implementation. The time elapsed from hospital arrival to definitive treatment was six days in the pre-implementation period, with an average stay from admission to discharge of 7.4 days. After implementation, the time from hospital arrival to definitive treatment was 4.3 days, and the average discharge time for the Post group was six days. The potential savings per patient amount to 332 dollars, offset by the institution's implant supply cost of 197 dollars, resulting in an approximate savings of 135 dollars per patient for the ministry. CONCLUSIONS: we view the implementation of free titanium elastic nails for pediatric femur fracture patients positively. We encourage the institution to continue with similar policies and strive to achieve even greater benefits for users.

INTRODUCCIÓN: la política de promoción de la salud requiere la identificación de los obstáculos para la adopción de políticas públicas. El sistema nacional de salud de Paraguay es inequitativo, caro e ineficiente. El Ministerio de Salud Pública y Bienestar Social (MSPyBS) es el ente que cubre las necesidades de gran parte de la población. El MSPyBS en Enero del 2022 financió, mediante la Licitación Pública Nacional de Materiales de Osteosíntesis (LPN 02/22), la compra de clavos elásticos de titanio para disponer de su uso gratuito en el Servicio de Pediatría; usando a la investigación como herramienta, buscamos analizar el impacto de la implementación de la LPN 02/22 en el Hospital de Trauma, creyendo que esta acción ayudaría a dinamizar los procesos administrativos y burocráticos, haciéndolos más eficientes con la ayuda de los recursos humanos del hospital. MATERIAL Y MÉTODOS: estudio retrospectivo, analítico y comparativo, realizado en un centro de trauma de alta complejidad de Asunción, Paraguay. Fueron incluidos los pacientes con edad comprendidas entre cuatro y 14 años, con indicación de estabilización con clavos elásticos. Se analizaron los datos demográficos, el mecanismo de trauma, el tiempo transcurrido desde la llegada al hospital hasta el tratamiento quirúrgico, así como el tiempo de estadía hospitalaria. Se evaluó el costo hospitalario promedio, basados en el gasto diario de la internación de un paciente pediátrico. RESULTADOS: cincuenta y dos pacientes, separados en 25 casos en el 2021 previo a la implementación y 27 casos posterior a la implementación. El tiempo transcurrido desde la llegada al hospital hasta el tratamiento definitivo fue de seis días para la etapa previa a la implementación; el promedio desde el ingreso hasta el alta fue de 7.4 días. Desde la implementación se tuvo un transcurso de 4.3 días desde la llegada al hospital hasta el tratamiento definitivo. El egreso del grupo Post tuvo un promedio de seis días. El ahorro probable en relación con cada paciente es de 332 dólares; a esto debemos contrarrestar el monto que paga la institución para la provisión del implante (197 dólares), por lo que el ahorro del ministerio sería de aproximadamente 135 dólares por cada paciente. CONCLUSIONES: vemos como positiva la implementación de la gratuidad de los clavos elásticos de titanio en los pacientes en edad pediátrica con fractura de fémur. Alentamos a la institución a seguir con políticas similares y tratar de lograr mayores beneficios para los usuarios.

The epidemiology of fracture-related infections in Germany.

The epidemiology of fracture-related infection (FRI) is unknown, which makes it difficult to estimate future demands and evaluate progress in infection prevention. Therefore, we aimed to determine the nationwide burden's development over the last decade as a function of age group and gender. FRI prevalence as a function of age group and gender was quantified based on annual ICD-10 diagnosis codes from German medical institutions between 2008 through 2018, provided by the Federal Statistical Office of Germany (Destatis). The prevalence of FRI increased by 0.28 from 8.4 cases per 100,000 inhabitants to 10.7 cases per 100,000 inhabitants between 2008 and 2018. The proportion of fractures resulting in FRI increased from 1.05 to 1.23%. Gender distribution was equal. Patients aged 60-69 years and 70-79 years comprised the largest internal proportion with 20.2% and 20.7%, respectively, whereby prevalence increased with age group. A trend towards more diagnoses in older patients was observed with a growth rate of 0.63 for patients older than 90 years. Increasing rates of fracture-related infection especially in older patients indicate an upcoming challenge for stakeholders in health care systems. Newly emerging treatment strategies, prevention methods and interdisciplinary approaches are strongly required.

Wound infection following implant removal of foot, ankle, lower leg or patella; a protocol for a multicenter randomized controlled trial investigating the (cost-)effectiveness of 2 g of prophylactic cefazolin compared to placebo (WIFI-2 trial).

BACKGROUND: Elective implant removal (IR) after fracture fixation is one of the most common procedures within (orthopedic) trauma surgery. The rate of surgical site infections (SSIs) in this procedure is quite high, especially below the level of the knee. Antibiotic prophylaxis is not routinely prescribed, even though it has proved to lower SSI rates in other (orthopedic) trauma surgical procedures. The primary objective is to study the effectiveness of a single intravenous dose of 2 g of cefazolin on SSIs after IR following fixation of foot, ankle and/or lower leg fractures. METHODS: This is a multicenter, double-blind placebo controlled trial with a superiority design, including adult patients undergoing elective implant removal after fixation of a fracture of foot, ankle, lower leg or patella. Exclusion criteria are: an active infection, current antibiotic treatment, or a medical condition contraindicating prophylaxis with cefazolin including allergy. Patients are randomized to receive a single preoperative intravenous dose of either 2 g of cefazolin or a placebo (NaCl). The primary analysis will be an intention-to-treat comparison of the proportion of patients with a SSI at 90 days after IR in both groups. DISCUSSION: If 2 g of prophylactic cefazolin proves to be both effective and cost-effective in preventing SSI, this would have implications for current guidelines. Combined with the high infection rate of IR which previous studies have shown, it would be sufficiently substantiated for guidelines to suggest protocolled use of prophylactic antibiotics in IR of foot, ankle, lower leg or patella. Trial registration Nederlands Trial Register (NTR): NL8284, registered on 9th of January 2020, https://www.trialregister.nl/trial/8284.

Cost-Effectiveness of Treatments after Closed Extraarticular Distal Radius Fractures in Older Adults from the WRIST Clinical Trial.

BACKGROUND: This study performs an economic analysis of volar locking plate, external fixation, percutaneous pinning, or casting in elderly patients with closed distal radius fractures. METHODS: This is a secondary analysis of the Wrist and Radius Injury Surgical Trial, a randomized, multicenter, international clinical trial with a parallel nonoperative casted group of patients older than 60 years with surgically indicated, extraarticular closed distal radius fractures. Thirty-Six-Item Short-Form Health Survey-converted utilities and total costs from Medicare were used to calculate quality-adjusted life-years and incremental cost-effectiveness ratio. RESULTS: Casted patients were self-selected and older (p < 0.001) than the randomized surgical cohorts, but otherwise similar in sociodemographic characteristics. Quality-adjusted life-years for percutaneous pinning were highest at 9.17 and external fixation lowest at 8.81. Total costs expended were $16,354 for volar locking plates, $16,012 for external fixation, $11,329 for percutaneous pinning, and $6837 for casting. The incremental cost-effectiveness ratios for volar locking plates and external fixation were dominated by percutaneous pinning and casting. The ratio for percutaneous pinning compared to casting was $28,717. Probabilistic sensitivity analysis revealed a 10, 5, 53, and 32 percent chance of volar locking plate, external fixation, percutaneous pinning, and casting, respectively, being cost-effective at the willingness-to-pay threshold of $100,000 per quality-adjusted life-year. CONCLUSIONS: Casting is the most cost-effective treatment modality in the elderly with closed extraarticular distal radius fractures and should be considered before surgery. In unstable closed fractures, percutaneous pinning, which is the most cost-effective surgical intervention, may be considered before volar locking plates or external fixation.

Clinical outcome and operative cost comparison: Locked compression plate versus reconstruction plate in midshaft clavicle fractures.

OBJECTIVE: The aim of this study was to compare the clinical outcomes and operative cost of a locked compression plate (LCP) and a nonlocked reconstruction plate in the treatment of displaced midshaft clavicle fracture. METHODS: From January 2013 till March 2018, a total of 55 patients with acute unilateral closed midshaft clavicle fracture were treated with either a 3.5-mm pre-contoured LCP [32 patients; 25 men and 7 women; mean age: 35 years (range: 19-63 years)] or a 3.5-mm nonlocked reconstruction plate [23 patients; 20 men and 3 women; mean age: 31.4 years (range: 17-61 years)]. The clinical outcomes in terms of fracture union, Quick Disability of Arm, Shoulder and Hand (DASH) score, implant irritation, failure rate, and reoperation rate were evaluated retrospectively. The patient billing records were reviewed to obtain primary operation, reoperation, and total operative cost for midshaft clavicle fracture. These values were analyzed and converted from Malaysia Ringgit (RM) to United States Dollar (USD) at the exchange rate of RM 1 to USD 0.24. All patients were followed up for at least one-year duration. RESULTS: The mean time to fracture union, implant irritation, implant failure, and reoperation rate showed no significant difference between the two groups of patients. The mean Quick DASH score was significantly better in the reconstruction plate group with 13 points compared with 28 points in the LCP group (p=0.003). In terms of total operative cost, the LCP group recorded a cost of USD 391 higher than the reconstruction plate group (p<0.001). CONCLUSION: The 3.5-mm reconstruction plate achieved not only satisfactory clinical outcomes but was also more cost-effective than the LCP in the treatment of displaced midshaft clavicle fractures. LEVEL OF EVIDENCE: Level III, Therapeutic study.

A comparison of risk profile for orthopaedic operations when utilizing individually wrapped screws (IWS) when compared with sterile screw caddies (screw racks).

INTRODUCTION: There has been a global trend towards individually packaged screws for orthopaedic operations. Traditional practice makes use of screw caddies that require re-sterilization. Individually wrapped screws (IWS) are purported to decrease infection rates and avoid the deleterious effects of repeated screw sterilizations, despite marginal evidence. This review aimed to evaluate the safety, effectiveness and economics of screw caddies with IWS. MATERIAL AND METHODS: The literature was surveyed in a systematic fashion between 1998 and 2017 and all relevant health technology assessments, systematic reviews, meta-analyses, randomized controlled trials, cohort studies, case-controlled studies and case series were sought. Any benefits or otherwise of IWS over screw caddies were then evaluated in the areas of safety, effectiveness and economics. RESULTS: Two level III-3 papers suggested the use of caddies at least as safe as individual screws. Four level III-2 papers demonstrated that screws from caddies were as effective as individual alternatives, while a level III-3 paper reported that individual screws were significantly more expensive than screw caddies. Cost increases to our regional health service from ankle open reduction and internal fixations alone of at least $50,112 (AUD) per annum were calculated. CONCLUSIONS: From the results obtained, the authors recommend the continued use of screw caddies for orthopaedic procedures.

The ideal implant for Mayo 2A olecranon fractures? An economic evaluation.

BACKGROUND: The ideal implant for stable, noncomminuted olecranon fractures is controversial. Tension band wiring (TBW) is associated with lower cost but higher implant removal rates.On the other hand, plate fixation (PF) is purported to be biomechanically superior, with lower failure and implant removal rates, although associated with higher cost. The primary aim of this study is to look at the clinical outcomes for all Mayo 2A olecranon between PF and TBW. The secondary aim is to perform an economic evaluation of PF vs. TBW. MATERIALS AND METHODS: This is a retrospective study of all surgically treated Mayo 2A olecranon fractures in a tertiary hospital from 2005-2016. Demographic data, medical history, range of motion, and complications were collected. All inpatient and outpatient costs in a 1-year period postsurgery including the index surgical procedure were collected via the hospital administrative cost database (normalized to 2014). RESULTS: A total of 147 cases were identified (94 TBW, 53 PF). PF was associated with higher mean age (P < .01), higher American Society of Anesthesiologists score (P < .01), and higher proportion of hypertensives (P = .04). There was no difference in the range of motion achieved at 1 year for both groups. In terms of complications, TBW was associated with more symptomatic hardware (21.6% vs. 13.7%, P = .24) and implant failures (16.5% vs. none, P < .01), whereas the plate group had a higher wound complication (5.9% vs. none, P = .02) and infection rate (9.8% vs. 3.1%, P = .09). TBW had a higher implant removal rate of 30.9% compared with 22.7% for PF (P = .36). PF had a higher cost at all time points, from the index surgery ($10,313.64 vs. $5896.36, P < .01), 1-year cost excluding index surgery ($5069.61 vs. $3850.46, P = .46), and outpatient cost ($1667.80 vs. $1613.49, P = .27). DISCUSSION AND CONCLUSION: Based on our study results, we have demonstrated that TBW is the ideal implant for Mayo 2A olecranon fractures from both a clinical and economic standpoint, with comparable clinical results, potentially similar implant removal rates as PF's, and a lower cost over a 1-year period. In choosing the ideal implant, the surgeon must take into account, first, the local TBW and PF removal rate, which can vary significantly because of the patient's profile and beliefs, and second, the PF implant cost.

Correlation between patient-reported outcome measures and Single Assessment Numerical Evaluation score in patients treated with a volar locking plate for a distal radial fracture.

AIMS: The aim of this study was to compare patient-reported outcome measures (PROMs) and the Single Assessment Numerical Evaluation (SANE) score in patients treated with a volar locking plate for a distal radial fracture. METHODS: This study was a retrospective review of a prospective database of 155 patients who underwent internal fixation with a volar locking plate for a distal radial fracture between August 2014 and April 2017. Data which were collected included postoperative PROMs (Disabilities of the Arm, Shoulder, and Hand questionnaire (DASH) and Patient-Rated Wrist Evaluation (PRWE)), and SANE scores at one month (n = 153), two months (n = 155), three months (n = 144), six months (n = 128), and one year (n = 73) after operation. Patients with incomplete data were excluded from this study. Correlation and agreement between PROMs and SANE scores were evaluated. Subgroup analyses were carried out to identify correlations according to variables such as age, the length of follow-up, and subcategories of the PRWE score. RESULTS: The Pearson correlation coefficient (r) between PROMs and SANE scores was -0.76 (p < 0.001) for DASH and -0.72 (p < 0.001) for PRWE, respectively. Limits of agreement between PROMs and '100-SANE' scores were met for at least 93% of the data points. In subgroup analysis, there were significant negative correlations between PROMs and SANE scores for all age groups and for follow-up of more than six months. The correlation coefficient between PRWE subcategories and SANE score was -0.67 (p < 0.001) for PRWE pain score and -0.69 (p < 0.001) for PRWE function score, respectively. CONCLUSION: We found a significant correlation between postoperative SANE and PROMs in patients treated with a volar locking plate for a distal radial fracture. The SANE score is thus a reliable indicator of outcome for patients who undergo surgical treatment for a radial fracture. Cite this article: Bone Joint J 2020;102-B(6):744-748.

Does cement augmentation of the screws in angular stable plating for proximal humerus fractures influence the radiological outcome: a retrospective assessment.

BACKGROUND: Screw-tip augmentation in angular stable plating offers new possibilities for the treatment of complex proximal humerus fractures. This retrospective analysis was performed to evaluate the radiological outcome of proximal humerus fractures treated with angular stable plates and additional screw-tip cement augmentation in patients over the age of 60. MATERIALS AND METHODS: A retrospective single centre analysis was conducted from June 2013 to December 2016. The minimum follow-up time was set to 6 months after surgery. Anatomical reduction and fixation were evaluated in respect to reattached tuberosities to the head fragment and the adequate restoration of the calcar area not showing any valgus or varus malalignment. Complete fracture healing was determined 3 months after surgery. Any failures such as secondary displacement, primary screw perforation, intraarticular cement leakage and avascular necrosis of the humeral head with concomitant screw cut-out were assessed. RESULTS: In total, 24 patients (21 females; 3 males) at a median age of 77.5 (62-96) years were included. Five 2-part, twelve 3-part and seven 4-part fractures were detected. The measured median BMD value of 23 patients was 78.4 mg/cm3 (38.8-136.9 mg/cm3). Anatomical reduction was achieved in 50% of the patients. In most cases, the A level screws and the B1 screw were augmented with bone cement by a median of 7 (5-9) head screws used. Postoperative varus displacement was not detected in any of the patients. One patient (4.2%) sustained an early secondary displacement. Intraarticular cement leakage was detected in 3 patients (2 head-split fractures). Avascular necrosis of the humeral head was observed in 4 patients (16.7%). Revision surgery was necessary in four cases, using hemiarthroplasty twice and reverse shoulder arthroplasty the other two times. CONCLUSION: Screw-tip augmentation in angular stable plating for proximal humerus fracture treatment showed a low secondary displacement rate of 4.2% in patients suffering from poor bone quality. Nevertheless, the occurrence of avascular necrosis of the humeral head with mainly severe fracture patterns observed in this study was higher compared to previously reported results in the literature. Cement augmentation in head-split fractures is not recommended, considering the high risk of an intraarticular cement leakage.

Interdisciplinary consensus of virtual monochromatic dual-energy CT images: is there discrepancy in preferred photon energy between surgeons and radiologists for the assessment of non-unions?

AIM: To investigate possible differences between surgeons and radiologists in selecting optimal photon energy settings from a set of virtual monochromatic dual-energy computed tomography (CT) images for the assessment of bone union in patients with a suspected non-union of the appendicular skeleton. MATERIALS AND METHODS: Fifty patients suspected of having bone non-union after operative fracture treatment with a variety of fixation implants were included. Patients were scanned on a dual-source CT machine using 150/100-kVp. Monochromatic images were extracted at 70, 90, 110, 130, 150, and 190 keV. Images were reviewed by 159 orthopaedic trauma surgeons and 12 musculoskeletal radiologists in order to select the best and worst energy setting to assess bone union. Furthermore, a confidence score (1-4) was given in selecting the best and worst setting to assess bone union. RESULTS: Monochromatic 190 keV images were selected most frequently as the optimal energy in titanium (34.8%), stainless steel (40%), and combined implants of stainless steel and titanium (40.5%). Confidence scores and average optimal energies were higher and average worst energies were lower for radiologists compared to surgeons in all hardware (p<0.05). Differences in optimal energy were not statistically significant for different alloys or type of fixation implant in both groups. CONCLUSIONS: In both observer groups, 190 keV images were selected most frequently as the optimal energy to assess bone union in patients with a suspected non-union of the appendicular skeleton with hardware in situ. On average, musculoskeletal radiologists selected higher optimal and lower worst energy settings and were more confident in selecting both energy settings than orthopaedic trauma surgeons.

Volar Plate Fixation in Adults with a Displaced Extra-Articular Distal Radial Fracture Is Cost-Effective.

BACKGROUND: To our knowledge, a health economic evaluation of volar plate fixation compared with plaster immobilization in patients with a displaced extra-articular distal radial fracture has not been previously conducted. METHODS: A cost-effectiveness analysis of a multicenter randomized controlled trial was performed. Ninety patients were randomly assigned to volar plate fixation or plaster immobilization. The use of resources per patient was documented prospectively for up to 12 months after randomization and included direct medical, direct non-medical, and indirect non-medical costs due to the distal radial fracture and the received treatment. RESULTS: The mean quality-adjusted life-years (QALYs) at 12 months were higher in patients treated with volar plate fixation (mean QALY difference, 0.16 [bias-corrected and accelerated 95% confidence interval (CI), 0.07 to 0.27]). (The 95% CIs throughout are bias-corrected and accelerated.) In addition, the mean total costs per patient were lower in patients treated with volar plate fixation (mean difference, -$299 [95% CI, -$1,880 to $1,024]). The difference in costs per QALY was -$1,838 (95% CI, -$12,604 to $9,787), in favor of volar plate fixation. In a subgroup analysis of patients who had paid employment, the difference in costs per QALY favored volar plate fixation by -$7,459 (95% CI, -$23,919 to $3,233). CONCLUSIONS: In adults with a displaced extra-articular distal radial fracture, volar plate fixation is a cost-effective intervention, especially in patients who had paid employment. Besides its better functional results, volar plate fixation is less expensive and provides a better quality of life than plaster immobilization. LEVEL OF EVIDENCE: Economic Level I. See Instructions for Authors for a complete description of levels of evidence.

Does an Implant Usage Report Card Impact Orthopaedic Trauma Implant Stewardship?

OBJECTIVES: As hospitals seek to control variable expenses, orthopaedic surgeons have come under scrutiny because of relatively high implant costs. We aimed to determine whether feedback to surgeons regarding implant costs results in changes in implant selection. METHODS: This study was undertaken at a statewide trauma referral center and included 6 fellowship-trained orthopaedic trauma surgeons. A previously implemented implant stewardship program at our institution using a "red-yellow-green" (RYG) implant selection tool classifies 7 commonly used trauma implant constructs based on cost and categorizes each implant as red (used for patient-specific requirements, most expensive), yellow (midrange), and green (preferred vendor, least expensive). The constructs included were femoral intramedullary nail, tibial intramedullary nail, long and short cephalomedullary nails, distal femoral plate, proximal tibial plate, and lower-limb external fixator. Baseline implant usage from the previous year was obtained and provided to each surgeon. Each surgeon received a monthly feedback report containing individual implant utilization and overall ranking. RESULTS: The overall RYG score increased from 68.7 to 79.1 of 100 (P < 0.001). Three of the 7 implants (tibial and femoral nails and lower-limb external fixation) had significant increases in their RYG scores; implant selections for the other 4 implants were not significantly altered. A decrease of 1.8% (95% confidence interval, 0.4-3.2, P = 0.01) was noted in overall implant costs over the study period. CONCLUSION: Our intervention resulted in changes in surgeons' implant selections and cost savings. However, surgeons were unwilling to change certain implants despite their being more expensive.

Variation in Implant Selection for Ankle Fractures: Identifying Cost Drivers.

BACKGROUND: Implant selection is the first opportunity for surgeons to control costs of fracture fixation. The current literature has demonstrated surgeons' poor understanding of implant costs. Our study evaluated implant cost variability for surgically treated ankle fractures and distal tibia fractures. Our hypothesis was that significant cost variation exists among providers. The goal was to identify cost drivers and determine whether specialty training is linked to implant selection. METHODS: A retrospective 2010-2017 chart review was performed for 1281 patients at a Level I trauma center. Patients were excluded for skeletal immaturity, open fractures, polytrauma, and concurrent surgeries. Variables were assessed included age, sex, body mass index, OTA/AO classification, Weber classification, 1-year reoperation status, surgeon specialty, and use of syndesmotic screws, locking plates, and cannulated screws. Construct cost was determined by using electronic medical record implant model numbers cross-referenced with the chargemaster database. Statistical analysis involved intergroup comparative tests, regression analysis, and goodness-of-fit analyses. RESULTS: Implant cost was different among OTA patterns (P < 0.01), highest among 43C ($3771) and lowest with 44A ($819). Construct costs of OTA 43 fractures varied from $2568 to 3771, whereas OTA 44 ranged from $819 to $1474. Costs were comparable across Weber patterns (P = 0.15), with Weber B having the highest ($1494). Costs were highest among reconstructive, podiatry, and spine surgeons, with mean costs of $1804, $1404, and $1396, respectively. Traumatologist constructs had the lowest overall price ($987). A total of 433 (33.8%) procedures used locking plates with 512 (40.0%) using at least one cannulated screw. Locking plates averaged a larger total implant cost ($1947) than nonlocking plates ($1313) but had a comparable reoperation rate (18.5% vs. 17.7%, P = 0.81). Use of a cannulated screw presented a higher total cost ($2008 vs. $1435) with comparable reoperation rates (17.4% vs. 18.8%, P = 0.72). A total of 401 (31.5%) patients received syndesmotic fixation and a significantly higher reoperation rate (17.0% vs. 11.0%, P < 0.01). Overall, 199 patients underwent elective hardware removal, 23 were infected, 7 required revision, and 3 were identified with a nonunion. CONCLUSIONS: Our study demonstrated significant variability in implant costs for ankle fracture fixation and identified the key cost drivers as locking plates and cannulated screws. Surgical management of ankle fractures could be an ideal setting to pilot economic alignment between physicians and hospitals to drive value. LEVEL OF EVIDENCE: Level III. Retrospective Cohort.

Routine fixation of displaced midshaft clavicle fractures is not cost-effective: a cost analysis from a randomized controlled trial.

AIMS: The primary aim of this study was to establish the cost-effectiveness of the early fixation of displaced midshaft clavicle fractures. PATIENTS AND METHODS: A cost analysis was conducted within a randomized controlled trial comparing conservative management (n = 92) versus early plate fixation (n = 86) of displaced midshaft clavicular fractures. The incremental cost-effectiveness ratio (ICER) was used to express the cost per quality-adjusted life-year (QALY). The Six-Dimension Short-Form Health Survey (SF-6D) score was used as the preference-based health index to calculate the cost per QALY at 12 months after the injury. RESULTS: The mean 12-month SF-6D was 0.9522 (95% confidence interval (CI) 0.9355 to 0.9689) following conservative management and 0.9607 (95% CI 0.9447 to 0.9767) following fixation, giving an advantage for fixation of 0.0085, which was not statistically significant (p = 0.46). The mean cost per patient was £1322.69 for conservative management and £5405.32 for early fixation. This gave an ICER of £480 309.41 per QALY. For a threshold of £20 000 per QALY, the benefit of fixation would need to be present for 24 years to be cost-effective compared with conservative treatment. Linear regression analysis identified nonunion as the only factor to adversely influence the SF-6D at 12 months (p < 0.001). CONCLUSION: Routine plate fixation of displaced midshaft clavicular fractures is not cost-effective. Nonunion following conservative management has an increased morbidity with comparable expense to early fixation. This may suggest that a targeted approach of fixation in patients who are at higher risk of nonunion would be more cost-effective than the routine fixation of all displaced fractures. Cite this article: Bone Joint J 2019;101-B:995-1001.

Fit assessment of two different anatomically contoured distal femur plate sets on cadaveric bones.

OBJECTIVES: This study aims to investigate the fitness of two anatomic distal femoral plates with cadaveric femurs and to show whether current plates optimally match each femur. MATERIALS AND METHODS: Two different sets of plates with five, seven and nine shaft holes were applicated on 62 cadaveric femurs. Ball clay was molded onto the entire inner surfaces of the plates and then the plates were fixed to the bones using two self-locking nylon cable zip ties. The volume of ball clay sandwiched in between the plate and bone was calculated and used as a quantitative fit parameter. Data of each plate were analyzed separately. RESULTS: Using Double Medical Technology IncorporatedTM plates, the mean plate to bone volumes were calculated as 8.4 mL (range, 5-14 mL), 10.0 mL (range, 6-17 mL), and 13.1 mL (range, 7-25 mL) in five, seven and nine-hole plates, respectively. Using Zimmer Biomet IncorporatedTM plates, the mean volumes were 10.5 mL (range, 6-21 mL), 12.7 mL (range, 7-22 mL) and 16.3 mL (range, 8-30 mL) in five, seven and nine-hole plates, respectively. Within each group, the measurements were significantly correlated positively with femoral length. CONCLUSION: Optimal fit may not be achieved in each femur using current distal femoral plate implant sets. Thus additional sizes of plates should be supplied in the implant sets.

A Clinical Comparison and Economic Evaluation of Erich Arch Bars, 4-Point Fixation, and Bone-Supported Arch Bars for Maxillomandibular Fixation.

Importance: Erich arch bars, 4-point fixation, and bone-supported arch bars are currently used in maxillomandibular fixation, although to what extent they differ in terms of overall charges and clinical outcomes has yet to be reported. Objective: To determine the association of Erich arch bars, 4-point fixation, and bone-supported arch bars in maxillomandibular fixation with hospital charges and clinical outcomes. Design, Setting, and Participants: This historical cohort included 93 patients with mandible fracture who underwent maxillomandibular fixation from January 1, 2005, to June 30, 2015, at a tertiary care center. Statistical analysis was conducted from October 4, 2015, to September 8, 2017. Main Outcomes and Measures: Charge analysis from an institutional perspective, operative time, necessity for a secondary procedure, and postoperative complications. Results: Of the 93 patients in the study (18 women and 75 men; median age, 28.0 years [interquartile range, 23.0-40.0 years]), 27 (29%) received Erich arch bars, 51 (55%) received 4-point fixation, and 15 (16%) received bone-supported arch bars. The mean operative time for Erich arch bars (98.7 minutes; 95% CI, 89.2-108.2 minutes) was significantly longer than for 4-point fixation (48.8 minutes; 95% CI, 41.8-55.7 minutes) and bone-supported arch bars (55.9 minutes; 95% CI, 43.1-68.6 minutes). A total of 17 patients who received Erich arch bars (63%), 37 patients who received 4-point fixation (72%), and 1 patient who received bone-supported arch bars (7%) needed to return to the operating room for hardware removal. Patients who received Erich arch bars and those who received 4-point fixation had significantly higher odds of requiring a secondary procedure than did patients who received bone-supported arch bars (Erich arch bars: odds ratio, 27.1; 95% CI, 2.7-274.6; and 4-point fixation: odds ratio, 42.8; 95% CI, 4.4-420.7). Mean total operative charges for application of the hardware alone were significantly less for 4-point fixation ($5290; 95% CI, $4846-$5733) and bone-supported arch bars ($6751; 95% CI, $5936-$7566) than for Erich arch bars ($7919; 95% CI, $7311-$8527). When secondary procedure charges were included, the mean total charge for Erich arch bars ($9585; 95% CI, $8927-$10 243) remained significantly more expensive than the mean total for 4-point fixation ($7204; 95% CI, $6724-$7684) and bone-supported arch bars ($6924; 95% CI, $6042-$7807). No clinically meaningful difference in complications between groups was found (Erich arch bars, 3 [11%]; 4-point fixation, 5 [10%]; and bone-supported arch bars, 2 [13%]). Conclusions and Relevance: Bone-supported arch bars have comparable complication outcomes, operative time for placement, and overall charges when compared with Erich arch bars and 4-point fixation, and have a lower likelihood of requiring removal in an operative setting.

Is percutaneous pinning an outdated technique for distal radius fractures?

Distal radius fracture is a very common injury representing 17.5% of all fractures seen in the emergency room. However, the most effective treatment is still unclear and controversially debated. For ten years, we have been facing a true revolution by the increasing use of open reduction and fixation by volar locking plates as an alternative to previous less invasive treatment such as closed reduction and percutaneous k-wire pinning. Several meta-analyses have compared the clinical results after closed reduction and percutaneous pinning and volar locking plate fixation. Volar locking plate fixation achieves better early functional recovery, better radiological outcomes and less minor complications. However, long-term results were similar for both fixation methods. In addition, worse radiological outcomes and more minor complications after closed reduction and percutaneous pinning seem not to be clinically relevant. Interestingly, volar locking plate fixation continues to be a more dominant treatment method compared to percutaneous pinning in operative care of distal radius fractures. Surgeon characteristics such as age, profession as well as location and type of the clinic seem to play a role in the decision for the surgical treatment method. It appears that implant cost plays a minor role in treatment choice between closed reduction and percutaneous pinning and volar locking plate fixation.