Use of a Mandatory Clinical Decision Unit Reduces Readmission Rates following Total Joint Arthroplasty.

Readmission penalties have encouraged the implementation of protocols to reduce readmission rates. We hypothesized that by keeping postoperative patients, who return to the emergency department (ED) in a clinical decision unit (CDU) until being evaluated by the orthopaedic team, there would be a reduction in the readmission rate after total joint arthroplasty (TJA) at our institution. Our institution mandated the use of the CDU for all potential orthopaedic TJA readmissions. A retrospective review of prospectively collected data was performed on 365 patients who presented to the ED after either total hip arthroplasty (THA) or total knee arthroplasty (TKA). Patients presenting in the year prior to the implementation of the CDU program were compared with patients presenting in the year after implementation. Demographics, length of stay, comorbidities, and 30-day readmission rates were recorded. Additionally, a financial analysis was performed. Overall, for THA and TKA, there were a combined 141 ED visits prior to the implementation of the CDU program and 224 afterward; of these, 40 were readmitted before the CDU program and only 13 were readmitted afterward (p < 0.01). The financial analysis found that the overall 90-day cost for patients in the postoperative period was nearly $800 lower on average (p = 0.027) post-CDU implementation.During the first year of the CDU project at our institution, we significantly reduced the readmission rates following TJA and demonstrated significant cost saving. This is a Level III, prognostic study.

Early Results of a Modern Uncemented Total Knee Arthroplasty System.

Historically, cementless total knees were associated with early failure, which made cemented total knee arthroplasty the gold standard. Manufacturers have introduced newer uncemented technologies that provide good initial stability and use highly porous substrates for bony in-growth. The authors hypothesized that the implants would have equivalent 90-day clinical and economic outcomes. Prospectively collected data on 252 uncemented knees in the Michigan Arthroplasty Registry Collaborative Quality Initiative database were reviewed. Ninety-day outcomes, demographics, length of stay, complications, emergency department visits, readmissions, and financial data were compared with those of an age-matched group of cemented knees. Uncemented knees had shorter length of stay (1.58 vs 1.87 days; P<.01), were more frequently discharged home (90.48% vs 68.75%; P<.0001), and used less home care (6.35% vs 19.14%; P<.0001) or extended care facilities (2.78% vs 11.72%; P=.0001). More uncemented knees had "no complications." Moreover, there were no re-operations in uncemented knees, compared with 19 reoperations in cemented knees. Uncemented knees were better than age-matched counterparts for Knee injury and Osteoarthritis Outcome Score (63.69 vs 47.10, n=85 and n=43, P<.0001) and Patient-Reported Outcomes Measurement Information System (PROMIS) T-Physical and T-Mental scores (44.12 vs 39.45, P<.0001; 51.84 vs 47.82, P=.0018). Cemented cases were more expensive overall, and surgical ($6806.43 vs $5710.78; P<.01) and total hospital ($8347.65 vs $7016.11; P<.01) costs were higher. The 90-day readmission and hospital outpatient costs were not significantly different between designs. Uncemented total knee arthroplasty, when using modern technologies, is successful and economically viable for an at-risk bundle. The results of this study should alleviate fears of increased cost, early failure, complications, or poor outcomes with the use of a modern uncemented total knee arthroplasty. [Orthopedics. 2019; 42(6):355-360.].

Unreported Sharps Exposures in Orthopedic Surgery Residents A Silent Majority.

Sharps-related injuries represent a significant occupational hazard to orthopedic surgeons. Despite increased attention and targeted interventions, evidence suggests that the majority of incidents continue to go unreported. The purpose of this study was to examine the incidence, attitudes, and factors that affect the reporting of sharps injuries among orthopedic surgery residents at a large academic teaching hospital in an effort to increase reporting rates and design effective interventions. This study administered an anonymous cross-sectional survey regarding intraoperative sharps exposures to current orthopedic house staff, with an 87% (54/62) response rate. Overall, 76% of surveyed residents (41/54) had at least one sharps exposure during residency. The majority of these incidents (55%) were never reported. The most common reason cited for not reporting was a "perception of low risk." Residents whose exposures were witnessed by others on the surgical team were more likely to report the incident (57% vs. 23%, p = 0.043), suggesting that peer pressure acts to improve reporting rates. While the implementation of a "needlestick hotline" and increased education has led to improved reporting rates at our institution, further improvements aimed at reducing unwitnessed incidents, and therefore unreported incidents, could comprise an increased emphasis on surgical team vigilance, positive peer pressure, the incorporation of sharps-specific surgical debriefing statements and anonymous tip lines.

Short-Term Outcomes Following Hip Fractures in Patients at Least 100 Years Old.

BACKGROUND: The number of hip fractures is rising as life expectancy increases. As such, the number of centenarians sustaining these fractures is also increasing. The purpose of this study was to determine whether patients who are ≥100 years old and sustain a hip fracture fare worse in the hospital than those who are younger. METHODS: Using a large database, the New York Statewide Planning and Research Cooperative System (SPARCS), we identified patients who were ≥65 years old and had been treated for a hip fracture over a 12-year period. Data on demographics, comorbidities, and treatment were collected. Three cohorts were established: patients who were 65 to 80 years old, 81 to 99 years old, and ≥100 years old (centenarians). Outcome measures included hospital length of stay, estimated total costs, and in-hospital mortality rates. RESULTS: A total of 168,087 patients with a hip fracture were identified, and 1,150 (0.7%) of them had sustained the fracture when they were ≥100 years old. Centenarians incurred costs and had lengths of stay that were similar to those of younger patients. Despite the similarities, centenarians were found to have a significantly higher in-hospital mortality rate than the younger populations (7.4% compared with 4.4% for those 81 to 99 years old and 2.6% for those 65 to 80 years old; p < 0.01). Male sex and an increasing number of medical comorbidities were found to predict in-hospital mortality for centenarians sustaining extracapsular hip fractures. No significant predictors of in-hospital mortality were identified for centenarians who sustained femoral neck fractures. An increased time to surgery did not influence the odds of in-hospital mortality. CONCLUSIONS: Centenarians had increased in-hospital mortality, but the remaining short-term outcomes were comparable with those for the younger cohorts with similar fracture patterns. For this extremely elderly population, time to surgery does not appear to affect short-term mortality rates, suggesting a potential benefit to preoperative optimization. LEVEL OF EVIDENCE: Prognostic Level III. See Instructions for Authors for a complete description of levels of evidence.

Presence of Failed Fracture Implants in Association With Lower Extremity Long Bone Nonunion Does Not Portend Worse Outcome After Nonunion Repair.

OBJECTIVE: The purpose of this study was to determine whether the finding of failed fracture implants in association with lower extremity long bone fracture nonunion portends worse clinical or functional outcome after surgical nonunion repair. DESIGN: Retrospective analysis of prospectively collected data. SETTING: Academic Medical Center. PATIENTS: One hundred eighty-one patients who presented to our institution over a 10-year period and underwent surgical repair of a lower extremity fracture nonunion. INTERVENTION: Surgical repair of lower extremity fracture nonunion. MAIN OUTCOME MEASUREMENTS: Time to union, postoperative complications, visual analog scale pain scores, and Short Musculoskeletal Function Assessment scores after lower extremity nonunion repair. Data were analyzed to assess for differences in postoperative outcomes based on the integrity of fracture implants at the time of nonunion diagnosis. Implant integrity was defined using 3 groups: broken implants (BI), implants intact (II), and no implants (NI). RESULTS: There was no significant difference in time to union after surgery between the BI, II, or NI groups (mean 8.1 months vs. 7.6 months vs. 6.2 months, respectively). Fourteen patients (7.7%) failed to heal, including 5 BI patients, 7 II patients, and 2 NI patients. One tibial nonunion patient in each of the 3 groups underwent amputation for persistent nonunion after multiple failed revision attempts at a mean of 4.8 years after initial injury. There was no difference in postoperative pain scores, the rate of postoperative complications, or functional outcome scores identified between the 3 groups. CONCLUSIONS: The finding of failed fracture implants at the time of lower extremity long bone nonunion diagnosis does not portend worse clinical or functional outcome after surgical nonunion repair. Patients who present with failed fracture implants at the time of nonunion diagnosis can anticipate similar time to union, complication rates, and functional outcomes when compared with patients who present with intact implants or those with history of nonoperative management. LEVEL OF EVIDENCE: Prognostic Level IV. See Instructions for Authors for a complete description of levels of evidence.

Development of a Middle-Age and Geriatric Trauma Mortality Risk Score A Tool to Guide Palliative Care Consultations.

INTRODUCTION: This study aimed to develop a tool to quantify risk of inpatient mortality among geriatric and middleaged trauma patients. This study sought to demonstrate the ability of the novel risk score in the early identification of high risk trauma patients for resource-sparing interventions, including referral to palliative medicine. MATERIALS AND METHODS: This retrospective cohort study utilized data from a single level 1 trauma center. Regression analysis was used to create a novel risk of inpatient mortality score. A total of 2,387 low energy and 1,201 high-energy middle-aged (range: 55 to 64 years of age) and geriatric (65 years of age or odler) trauma patients comprised the study cohort. Model validation was performed using 37,474 lowenergy and 97,034 high-energy patients from the National Trauma Databank (NTDB). Potential hospital cost reduction was calculated for early referral of high risk trauma patients to palliative medicine services in comparison to no palliative medicine referral. RESULTS: Factors predictive of inpatient mortality among the study and validation patient cohorts included; age, Glasgow Coma Scale, and Abbreviated Injury Scale for the head and neck and chest. Within the validation cohort, the novel mortality risk score demonstrated greater predictive capacity than existing trauma scores [STTGMALE-AUROC: 0.83 vs. TRISS 0.80, (p < 0.01), STTGMAHE-AUROC: 0.86 vs. TRISS 0.85, (p < 0.01)]. Our model demonstrated early palliative medicine evaluation could produce $1,083,082 in net hospital savings per year. CONCLUSION: This novel risk score for older trauma patients has shown fidelity in prediction of inpatient mortality; in the study and validation cohorts. This tool may be used for early intervention in the care of patients at high risk of mortality and resource expenditure.

Surgical Fracture Repair in Chronic Renal Failure Patients on Hemodialysis An Analysis of Complications and Hospital Quality Measures.

In end stage renal disease (ESRD) patients on hemodialysis (HD), it is known that renal bone disease has a negative impact on postoperative complication rate of fracture repair compared to non-ESRD patients. Previous studies have examined complications following surgical hip fracture repair in ESRD patients on HD. However, there is paucity of information outside of hip fracture repair. This study was undertaken to investigate complications associated with surgical fracture repair in ESRD patients on hemodialysis and to compare quality measures with a control group for various fracture types. Data of all consecutive ESRD patients on HD was collected prospectively starting in 2013. Charts of 2,558 ESRD patients on HD from 2010 to 2013 were also reviewed. Thirty-four patients who underwent surgical fracture repair were included in the study. Additionally, 1,000 patients without ESRD who underwent fracture repair were also identified, and a random sample of 267 patients was selected for inclusion as a control group. Primary outcomes were major complications as defined by the Clavien-Dindo complication rating system for orthopaedic surgery. Secondary outcomes were minor complications, defined by the same method. Demographic information and hospital quality measures, such as hospital length of stay (LOS) and discharge disposition, were also collected. There were no differences between the two groups in terms of BMI, ethnicity, or gender distribution. The ESRD patients were older than control patients (62.6 versus 46.8 years; p > 0.01). Overall, the complication rate in the ESRD group was 14.7% compared to 3% in the control group (p < 0.05) while the rate of major complications was similar (5.8% versus 2.2%, p = 0.2). The rate of minor complications was higher in the ESRD group though this did not reach statistical significance (8.8% versus 1%, p = 0.07). Median LOS was significantly higher in the ESRD group (15.9 versus 6.4 days; p < 0.01), and patients in the ESRD group were less likely to be discharged to home (29.4% versus 78%; p < 0.01). Surgical fracture repair in ESRD patients can be performed with similar major complication rate as a control group. However, the higher rate of minor complications and poorer hospital quality measures in the ESRD group must be taken into account as we move toward "pay for performance" and bundled payment initiatives for orthopaedic trauma patients.

Outcomes Over a Decade After Surgery for Unstable Ankle Fracture: Functional Recovery Seen 1 Year Postoperatively Does Not Decay With Time.

OBJECTIVES: To evaluate long-term clinical and radiographic outcomes after surgical fixation of unstable ankle fractures. DESIGN: Prospective follow-up study. SETTING: Academic medical center with 2 Level-I trauma centers and a tertiary care center. PATIENTS: One hundred forty-one patients who underwent surgical repair of an unstable ankle fracture. INTERVENTION: Open reduction internal fixation of an unstable ankle fracture. MAIN OUTCOME MEASUREMENTS: Short Musculoskeletal Function Assessment (SMFA) scores and radiographic outcomes based on the van Dijk criteria at a mean of 11.6 years follow-up. RESULTS: Of the 281 patients meeting the inclusion criteria for this study, follow-up data were obtained from 141 patients (50%), at a mean of 11.6 years after surgery. Overall, mean long-term SMFA scores were improved when compared with scores at 1 year. The American Society of Anesthesiologists class 1 or 2 was found to be a significant predictor of recovery based on SMFA scores. Sixty-three percent of follow-up radiographs demonstrated evidence of radiographic arthritis, including 31% with mild osteoarthritis, 22% with moderate osteoarthritis, and 10% with severe osteoarthritis. Fracture dislocation at injury was found to be a significant predictor of radiographic posttraumatic osteoarthritis at latest follow-up. One patient (0.7%) underwent a tibiotalar fusion secondary to symptomatic posttraumatic arthrosis. One patient (0.7%) underwent total ankle replacement due to severe osteoarthritis. CONCLUSIONS: Our data indicate that over a decade after ankle fracture fixation, most of the patients are doing well. Despite the presence of radiographic arthritis in 63% of patients, few experience pain or have restrictions in function, and mean long-term functional outcome scores are improved when compared with scores at 1 year. Patients undergoing operative fixation of unstable ankle fractures can anticipate functional outcomes that are maintained over time. LEVEL OF EVIDENCE: Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.

Impact of Diabetes Mellitus on Surgical Quality Measures After Ankle Fracture Surgery: Implications for "Value-Based" Compensation and "Pay for Performance".

OBJECTIVES: To evaluate the impact of diabetes mellitus (DM) and associated complications on cost, length of stay, and inpatient mortality after open reduction internal fixation (ORIF) of an ankle fracture, and the implications of these variables during a time of health care payment reform. DESIGN: Retrospective study. SETTING: The Statewide Planning and Research Cooperative System database, which includes all admissions to New York State hospitals from 2000 to 2011. PATIENTS/PARTICIPANTS: A total of 58,748 patients were identified as having undergone the primary procedure of ORIF of the ankle (ICD-9-CM procedure code 79.36). INTERVENTION: ORIF of the ankle. MAIN OUTCOME MEASURE: Cost, length of stay, and inpatient mortality. RESULTS: Of the 58,748 patients evaluated, 7501 (12.8%) had DM. Mean length of stay and total hospital charges were significantly greater for the DM cohort compared to the without DM cohort (P < 0.01). Patients with DM had greater Charlson Comorbidity Index scores and greater in-hospital mortality than patients without DM (both P < 0.01). Of the patients with diabetes, 1098/7501 had complicated diabetes mellitus (C-DM). Patients with C-DM stayed 2.4 days longer and were $6895 more costly than those with diabetes alone (both P < 0.01). Patients with C-DM also had a significantly higher in-hospital mortality rate than those with diabetes alone. CONCLUSIONS: Patients with diabetes admitted to the hospital for ankle ORIF have more expensive hospital stays and higher in-hospital mortality rates than patients without diabetes. The presence of diabetic complications further increases these risks. These data will help provide risk-adjustment for future health care payment reform initiatives. LEVEL OF EVIDENCE: Prognostic Level II. See Instructions for Authors for a complete description of levels of evidence.

Continuous Popliteal Sciatic Nerve Block Versus Single Injection Nerve Block for Ankle Fracture Surgery: A Prospective Randomized Comparative Trial.

OBJECTIVES: To compare rebound pain and the need for narcotic analgesia after ankle fracture surgery for patients receiving perioperative analgesia through either a continuous infusion or a single injection nerve block. DESIGN: Prospective randomized controlled trial. SETTINGS: Surgeries were performed at 2 hospitals affiliated with a large urban academic medical center. PATIENTS/PARTICIPANTS: Fifty patients undergoing operative fixation of an ankle fracture (AO/OTA type 44). INTERVENTION: Participants were randomized to receive either a popliteal sciatic nerve block as a single shot (SSB group) or a continuous infusion through an On Q continuous infusion pump (On Q group). MAIN OUTCOME MEASUREMENTS: Visual analog scale and numeric rating scale (0-10) pain levels and amount of pain medication taken. RESULTS: For all time points after discharge, mean postoperative pain scores and number of pain pills taken were lower in the On Q group versus the SSB group. Pain scores were significantly lower in the On Q group at the 12 hours postoperative time point (P = 0.002) and at 2 weeks postoperatively. The number of pain pills taken in the first 72 hours was lower in the On Q group (14.9 vs. 20.0; P = 0.036). Overall, 7/23 patients in the On Q group had their pump malfunction and 1 patient accidently removed the catheter. CONCLUSIONS: Use of continuously infused regional anesthetic for pain control in ankle fracture surgery significantly reduces "rebound pain" and the need for oral opioid analgesia compared with single-shot regional anesthetic. LEVEL OF EVIDENCE: Therapeutic Level I. See Instructions for Authors for a complete description of levels of evidence.

Development of Compartment Syndrome Negatively Impacts Length of Stay and Cost After Tibia Fracture.

OBJECTIVES: To quantify the impact of compartment syndrome in the setting of tibial shaft fracture on hospital length of stay (LOS) and total hospital charges. DESIGN: Retrospective case-control study. SETTING: All New York State hospital admissions from 2001 to 2011, as recorded by the New York Statewide Planning and Research Cooperative System database. PATIENTS: Thirty three thousand six hundred twenty-nine inpatients with isolated open or closed fractures of the tibia and/or fibula (AO/OTA 41-43). Six hundred ninety-two patients developed a compartment syndrome in the setting of tibia fracture. All patients were filtered to ensure none had other complications or medical comorbidities that would increase LOS or total hospital charges. INTERVENTION: Fasciotomy and delayed closure in patients who developed a compartment syndrome. MAIN OUTCOME MEASURE: Hospital LOS (days) and total inflation-adjusted hospital charges. RESULTS: A total of 33,629 patients with tibial shaft fracture were included in the study. There were 32,937 patients who did not develop a compartment syndrome. For this group, the mean LOS was 6 days, and the mean inflation-adjusted hospital charges were $34,000. Patients who developed compartment syndrome remained in-house for an average of 14 days with average charges totaling $79,000. These differences were highly significant for both lengths of stay and hospital charges (P < 0.001). CONCLUSIONS: Besides the obvious physical detriment experienced by patients with compartment syndrome, there is also a significant economic impact to the healthcare system. Compartment syndrome after a tibial fracture more than doubles LOS and total hospital charges. These findings highlight the need for a standardized care algorithm aimed toward efficiently and adequately treating acute compartment syndrome. Such an algorithm would optimize cost of care and presumably decrease LOS. LEVEL OF EVIDENCE: Economic Level IV. See Instructions for Authors for a complete description of levels of evidence.

Heel overload associated with heel cord insufficiency.

BACKGROUND: Heel cord lengthening is a common component of foot and ankle surgery. If the tendon is anatomically or functionally over lengthened patients may develop plantarflexion weakness and heel overload problems such as symptomatic plantar heel callosities and heel ulceration. METHODS: Nine patients who developed heel overload or heel ulcer after a heel cord lengthening or an irreparable rupture were identified. Initial foot injury, risk factors, treatment, and followup were reviewed. RESULTS: Five of the nine patients had diabetes and an insensate heel. The ulcer healed in two of five patients with a dorsiflexion stop brace, two with a tendon transfer, and one required a below knee amputation. There were four patients with heel overload with normal sensation and no diabetes. One improved with strengthening exercises, two with tendon transfer, and one required a below knee amputation. CONCLUSIONS: Heel cord insufficiency can lead to an overload callus or a heel ulcer. Patients with diabetes and an insensate heel are at highest risk, but this problem also can occur in patients with normal sensation. Obesity and ipsilateral first toe amputation also may be risk factors.

Foot and ankle injuries in elite female gymnasts.

BACKGROUND: Gymnastics is a competitive and popular sport that is started at an early age, and elite female gymnasts reach their prime in mid-teenage years. The level of intensity of practice and competition, the number of events, and the degree of difficulty of the maneuvers make gymnastics one of the most injury-producing sports. METHODS: Over a 3-year period, 14 elite, female gymnasts were seen in one foot and ankle center. The mean age was 17 (range 14 to 21) years. All gymnasts sustained acute or sub-acute injuries to the foot or ankle requiring surgery. The mechanism of injury, the type of injury, operative repair, and followup were recorded. RESULTS: There were five Lisfranc fracture-dislocations, and five talocalcaneal, two multiple metatarsal, one medial malleolar, one phalangeal, and one sesamoid fracture. All injuries had operative repair. One gymnast with a Lisfranc injury was able to return to full competition; all others with a Lisfranc injury retired from gymnastics, were lost to followup, or graduated from college. One gymnast with a talar osteochondral injury was not able to return to competition but all other injured gymnasts were able to return to gymnastics at the same level or higher. CONCLUSION: Elite female gymnasts can sustain significant injury to the foot and ankle region. In our study, Lisfranc injuries were most likely career-ending.

Reconstruction of the foot after leg or foot compartment syndrome.

Compartment syndrome should be treated early and aggressively to prevent late complications. Patients may have late deformity because of a failure of diagnosis, inadequate decompression, or a delay in fasciotomies. Late reconstruction will allow a plantigrade and relatively functional foot. Complete excision of scarred muscle will prevent recurrence in established deformities. Early treatment may prevent significant functional impairment by well-placed tenotomies. In patients with severe long-term deformities with extensive soft tissue contraction, incremental correction may be an appropriate intermediate intervention.

Salvage of failed neuropathic ankle fractures: use of large-fragment fibular plating and multiple syndesmotic screws.

The purpose of this study was to develop a salvage procedure for failed fixation of ankle fractures that occurs in patients with sensory neuropathy. Six patients, with insensitivity to a 5.07 monofilament on the plantar surface of their foot (five with diabetes mellitus, one with alcoholic peripheral neuropathy) presented to a foot and ankle referral center with failed traditional fixation of their Weber B and C ankle fractures. Five fractures were the result of trauma. One fracture occurred without a discernable traumatic event. A laterally placed 4.5 DCP plate on the fibula with multiple 4.5-mm syndesmotic screws engaging both cortices of the tibia was used as fixation. All patients postoperatively were immobilized in a non-weight-bearing below-knee cast for a minimum of 3 months after surgery. At follow-up, all six patients were satisfied with their results as determined by aligned, functional, and asymptomatic limbs. The patients were especially pleased that after multiple attempts to provide stability to their fractured neuropathic ankles, they had retained their own legs and did not need an amputation. Fibular plate fixation using multiple large-fragment syndesmotic screws provides a reasonable salvage alternative for neuropathic patients with ankle fractures that failed using traditional hardware techniques.