Association Between Comorbid Depression and Rates of Postoperative Complications, Readmissions, and Revision Arthroscopic Procedures After Elective Hip Arthroscopy

Background: Depression and related psychiatric diagnoses are common in patients undergoing hip arthroscopy for femoroacetabular impingement syndrome (FAIS). The effects of depression on postoperative complications, readmissions, and additional ipsilateral hip surgery are not well studied. Hypothesis: Patients with preoperative depression who undergo hip arthroscopy for FAIS would experience higher rates of 90-day postoperative complications and readmissions, with an increased risk of additional ipsilateral hip procedures, as compared with patients without depression. Study Design: Cohort study; Level of evidence, 3. Methods: A retrospective cohort study between 2010 and 2019 was performed using the Mariner/PearlDiver database. Current Procedural Terminology and International Classification of Diseases codes were used to compare patients with and without preexisting depression who underwent hip arthroscopy for FAIS. Patients were matched at a 1:1 ratio based on age, sex, Charlson Comorbidity Index, body mass index, and tobacco use. Patients undergoing shoulder or knee arthroscopy were also identified to compare lifetime preoperative depression prevalence amongst groups. Results: The lifetime preoperative depression prevalence was significantly higher in patients undergoing hip arthroscopy as compared with patients undergoing shoulder or knee arthroscopy (25.4% vs 22.2% vs 19.8%; P < .001). When compared with the patients without depression, patients with preoperative depression had higher rates of 90-day readmissions (2.4% vs 1.5%) and complications, including urinary tract infection (36.2% vs 28.9%), pneumonia (12.9% vs 9.1%), hematoma formation (3.1% vs 1.9%), acute kidney injury (4.0% vs 2.6%), deep venous thrombosis/pulmonary embolism (2.6% vs 1.7%), and superficial infection (4.9% vs 2.8%; P < .01 for all comparisons). Preoperative depression was associated with significantly higher odds of undergoing revision hip arthroscopy within 2 years (6.3% vs 2.4%; P < .001). Conclusion: Patients with preexisting depression experienced higher rates of 90-day postoperative complications and hospital readmissions after elective hip arthroscopy for FAIS and were more likely to undergo revision hip arthroscopy within 2 years of the index procedure.

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Assessment of acetabular chondral damage and labral pathologies via direct MR arthrography: specialization matters

Archives of Orthopaedic and Trauma Surgery ◽

10.1007/s00402-021-04071-z ◽

2021 ◽

Author(s):

A. Zimmerer ◽

MM. Schneider ◽

K. Tramountanis ◽

V. Janz ◽

W. Miehlke ◽

...

Keyword(s):

Predictive Value ◽

Hip Arthroscopy ◽

Mr Arthrography ◽

Level Of Evidence ◽

Chondral Lesions ◽

Orthopaedic Surgeons ◽

Femoroacetabular Impingement Syndrome ◽

Chondral Damage ◽

Direct Magnetic Resonance Arthrography ◽

Sensitivity Specificity

Abstract Aims To compare the diagnostic accuracy of investigators from different specialities (radiologists and orthopaedic surgeons) with varying levels of experience of 1.5 T direct magnetic resonance arthrography (dMRA) against intraoperative findings in patients with femoroacetabular impingement syndrome (FAIS). Methods A total of 272 patients were evaluated with dMRA and subsequent hip arthroscopy. The dMRA images were evaluated independently by two non-hip-arthroscopy-trained orthopaedic surgeons, two fellowship-trained musculoskeletal radiologists, and two hip-arthroscopy-trained orthopaedic surgeons. The radiological diagnoses were compared with the intraoperative findings. Results Hip arthroscopy revealed labral pathologies in 218 (79%) and acetabular chondral lesions in 190 (69%) hips. The sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV) and accuracy for evaluating the acetabular labral pathologies were 79%, 18%, 79%, 18%, and 66% (non-hip-arthroscopy trained orthopaedic surgeons), 83%, 36%, 83%, 36%, and 74% (fellowship-trained musculoskeletal radiologists), and 88%, 53%, 88%, 54% and 81% (hip-arthroscopy trained orthopaedic surgeons). The sensitivity, specificity, PPV, NPV and accuracy of dMRA for assessing the acetabular chondral damage were 81%, 36%, 71%, 50%, and 66% (non-hip-arthroscopy trained orthopaedic surgeons), 84%, 38%, 75%, 52%, and 70% (fellowship-trained musculoskeletal radiologists), and 91%, 51%, 81%, 73%, and 79% (hip-arthroscopy trained orthopaedic surgeons). The hip-arthroscopy trained orthopaedic surgeons displayed the highest percentage of correctly diagnosed labral pathologies and acetabular chondral lesions, which is significantly higher than the other two investigator groups (p < 0.05). Conclusion The accuracy of dMRA on detecting labral pathologies or acetabular chondral lesions depends on the examiner and its level of experience in hip arthroscopy. The highest values are found for the hip-arthroscopy-trained orthopaedic surgeons. Level of evidence Retrospective cohort study; III.

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Comparing Midterm Outcomes of High-Level Athletes Versus Nonathletes Undergoing Primary Hip Arthroscopy: A Propensity-Matched Comparison With Minimum 5-Year Follow-up

The American Journal of Sports Medicine ◽

10.1177/03635465211041763 ◽

2021 ◽

pp. 036354652110417

Author(s):

Andrew E. Jimenez ◽

Peter F. Monahan ◽

David R. Maldonado ◽

Benjamin R. Saks ◽

Hari K. Ankem ◽

...

Keyword(s):

Hip Arthroscopy ◽

Statistical Significance ◽

Arthroscopic Surgery ◽

Harris Hip Score ◽

Control Group ◽

Level Of Evidence ◽

Femoroacetabular Impingement Syndrome ◽

Patient Reported ◽

High Level

Background: High-level athletes (HLAs) have been shown to have better short-term outcomes than nonathletes (NAs) after hip arthroscopy. Purpose: (1) To report midterm outcomes of HLAs after primary hip arthroscopy and (2) to compare their results with a propensity-matched cohort of NA patients. Study Design: Cohort study; Level of evidence, 3. Methods: Data were prospectively collected and retrospectively reviewed between February 2008 and November 2015 for HLAs (professional, college, or high school) who underwent primary hip arthroscopy in the setting of femoroacetabular impingement syndrome (FAIS). HLAs were included if they had preoperative, minimum 2-year, and minimum 5-year follow-up data for the modified Harris Hip Score (mHHS), Non-Arthritic Hip Score (NAHS), and Hip Outcome Score Sports-Specific Subscale (HOS-SSS). Radiographic and intraoperative findings, surgical procedures, patient-reported outcomes (PROs), patient acceptable symptomatic state (PASS), minimal clinically important difference (MCID), and return to sport were reported. The HLA study group was propensity-matched to a control group of NA patients for comparison. Results: A total 65 HLA patients (67 hips) were included in the final analysis with mean follow-up time of 74.6 ± 16.7 months. HLAs showed significant improvement in all PROs recorded, achieved high rates of MCID and PASS for mHHS (74.6% and 79.4%, respectively) and HOS-SSS (67.7% and 66.1%, respectively), and returned to sport at high rates (80.4%). When compared with the propensity-matched NA control group, HLAs reported higher baseline but comparable postoperative scores for the mHHS and NAHS. HLA patients achieved MCID and PASS for mHHS at similar rates as NA patients, but the HLA patients achieved PASS for HOS-SSS at higher rates that trended toward statistical significance (66.1% vs 48.4%; P = .07). NA patients underwent revision arthroscopic surgery at similar rates as HLA patients (14.9% vs 9.0%, respectively; P = .424). Conclusion: Primary hip arthroscopy results in favorable midterm outcomes in HLAs. When compared with a propensity-matched NA control group, HLAs demonstrated a tendency toward higher rates of achieving PASS for HOS-SSS but similar arthroscopic revision rates at minimum 5-year follow-up.

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The impact of an orthogeriatric intervention in patients with fragility fractures: A cohort study

10.21203/rs.2.13090/v3 ◽

2019 ◽

Author(s):

Charlotte Abrahamsen ◽

Birgitte Nørgaard ◽

Eva Draborg ◽

Morten Frost Nielsen

Keyword(s):

Cohort Study ◽

Hip Fracture ◽

Postoperative Complications ◽

Fragility Fractures ◽

High Energy ◽

Historical Cohort ◽

Increased Risk ◽

Observational Cohort ◽

The Impact ◽

Acute Patients

Abstract Background: While orthogeriatric care to patients with hip fractures is established, the impact of similar intervention in patients with fragility fractures in general is lacking. Therefore, we aimed to assess the impact of an orthogeriatric intervention on postoperative complications and readmissions among patients admitted due to and surgically treated for fragility fractures. Methods: A prospective observational cohort study with a retrospective control was designed. A new orthogeriatric unit for acute patients of sixty-five years or older with fragility fractures in terms of hip, vertebral or appendicular fractures was opened on March 1, 2014. Patients were excluded if the fracture was cancer-related or caused by high-energy trauma, if the patient was operated on at another hospital, treated conservatively with no operation, or had been readmitted within the last month due to fracture-related complications. Results: We included 591 patients; 170 in the historical cohort and 421 in the orthogeriatric cohort. No significant differences were found between the two cohorts with regard to the proportion of participants experiencing complications (24.5% versus 28.3%, p = 0.36) or readmission within 30 days after discharge (14.1% vs 12.1%, p = 0.5). With both cohorts collapsed and adjusting for age, gender and CCI, the odds of having postoperative complications as a hip fracture patient was 4.45, compared to patients with an appendicular fracture (p < 0.001). Furthermore, patients with complications during admission were at a higher risk of readmission within 30 days than were patients without complications (22.3% vs 9.5%; p < 0.001). Conclusions: In older patients admitted with fragility fractures, our model of orthogeriatric care showed no significant differences regarding postoperative complications or readmissions compared to the traditional care. However, we found significantly higher odds of having postoperative complications among patients admitted with a hip fracture compared to other fragility fractures. Additionally, our study reveals an increased risk of being readmitted within 30 days for patients with postoperative complications.

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Injury Risk Associated With Sports Specialization and Activity Volume in Youth

Orthopaedic Journal of Sports Medicine ◽

10.1177/2325967119870124 ◽

2019 ◽

Vol 7 (9) ◽

pp. 232596711987012 ◽

Cited By ~ 5

Author(s):

Alison E. Field ◽

Frances A. Tepolt ◽

Daniel S. Yang ◽

Mininder S. Kocher

Keyword(s):

Physical Activity ◽

Cohort Study ◽

Injury Risk ◽

Cruciate Ligament ◽

The United States ◽

Level Of Evidence ◽

Sports Activity ◽

Risk Of Injury ◽

Increased Risk ◽

Anterior Cruciate

Background: Sports specialization has become increasingly common among youth. Purpose/Hypothesis: To investigate the relative importance of specialization vs volume of activity in increasing risk of injury. Hypotheses were that specialization increases the risk of injury and that risk varies by sport. Study Design: Cohort study; Level of evidence, 2. Methods: A prospective analysis was conducted with data collected from 10,138 youth in the Growing Up Today Study—a prospective cohort study of youth throughout the United States—and their mothers. Activity was assessed via questionnaires in 1997, 1998, 1999, and 2001. Sports specialization was defined as engaging in a single sport in the fall, winter, and spring. Injury history was provided by participants’ mothers via questionnaire in 2004. The outcome was incident stress fracture, tendinitis, chondromalacia patella, anterior cruciate ligament tear, or osteochondritis dissecans or osteochondral defect. Results: Females who engaged in sports specialization were at increased risk of injury (hazard ratio [HR], 1.31; 95% CI, 1.07-1.61), but risk varied by sport. Sports specialization was associated with greater volume of physical activity in both sexes ( P < .0001). Total hours per week of vigorous activity was predictive of developing injury, regardless of what other variables were included in the statistical model (males: HR, 1.04; 95% CI, 1.02-1.06; females: HR, 1.06; 95% CI, 1.05-1.08). Among females, even those engaging in 3 to 3.9 hours per week less than their age were at a significantly increased risk of injury (HR, 1.93; 95% CI, 1.34-2.77). In males, there was no clear pattern of risk. Conclusion: Sports specialization is associated with a greater volume of vigorous sports activity and increased risk of injury. Parents, coaches, and medical providers need to be made aware of the volume threshold above which physical activity is excessive.

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The impact of an orthogeriatric intervention in patients with fragility fractures: A cohort study

10.21203/rs.2.13090/v1 ◽

2019 ◽

Author(s):

Charlotte Abrahamsen ◽

Birgitte Nørgaard ◽

Eva Draborg ◽

Morten Frost Nielsen

Keyword(s):

Cohort Study ◽

Hip Fracture ◽

Postoperative Complications ◽

Fragility Fractures ◽

High Energy ◽

Historical Cohort ◽

Increased Risk ◽

Observational Cohort ◽

The Impact ◽

Acute Patients

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Preoperative Symptom Duration Is Associated With Outcomes After Hip Arthroscopy

The American Journal of Sports Medicine ◽

10.1177/0363546518808046 ◽

2018 ◽

Vol 47 (1) ◽

pp. 131-137 ◽

Cited By ~ 20

Author(s):

Bryce A. Basques ◽

Brian R. Waterman ◽

Gift Ukwuani ◽

Edward C. Beck ◽

William H. Neal ◽

...

Keyword(s):

Cohort Study ◽

Hip Arthroscopy ◽

Patient Reported Outcomes ◽

Harris Hip Score ◽

Duration Of Symptoms ◽

Outcome Score ◽

Femoroacetabular Impingement Syndrome ◽

Patient Reported ◽

Outcome Scores

Background: Prolonged disease chronicity has been implicated as a cause of suboptimal clinical outcomes after hip arthroscopy for femoroacetabular impingement syndrome (FAIS), possibly due to disease progression, deconditioning, and the development of compensatory pathomechanics. Purpose: To evaluate the effect of increasing duration of preoperative symptoms on patient-reported outcomes, reoperation, and clinical failure of hip arthroscopy for FAIS. Study Design: Cohort study; Level of evidence, 3. Methods: A retrospective cohort study was performed to identify all patients undergoing primary hip arthroscopy between January 1, 2012, and July 30, 2014, by a single surgeon, with minimum follow-up of 2 years. Patient demographics, comorbid medical conditions, and preoperative outcome scores were compared between patients with preoperative symptoms lasting less than 2 years and those with symptoms lasting 2 years or longer. Multivariate regressions were used to compare Hip Outcome Score Activities of Daily Living (HOS-ADL), Hip Outcome Score Sport-Specific (HOS-SS), and modified Harris Hip Score (mHHS) between the 2 cohorts at 2 years of follow-up. Results: A total of 624 patients were included, with an average age of 34.0 ± 13.5 years; 235 (37.7%) patients had experienced preoperative symptoms 2 years or longer. Patients with symptoms lasting less than 2 years had statistically significant higher outcome scores than those with symptoms lasting 2 or more years for the HOS-ADL (86.3 ± 16.4 vs 80.3 ± 19.9, respectively), HOS-SS (75.0 ± 25.3 vs 65.1 ± 29.0), and mHHS (79.1 ± 16.6 vs 74.0 ± 18.8), as well as higher satisfaction (82.1 ± 30.7 vs 71.1 ± 31.6) and lower pain scores (2.6 ± 2.3 vs 3.5 ± 2.6). On multivariate analysis, patients with symptoms 2 years or longer had significantly higher visual analog scale–Pain score (β = 0.6, P = .039) and lower HOS-ADL (β = −3.4, P = .033), HOS-SS (β = −6.3, P = .012), and satisfaction (β = −6.7, P = .028) at 2-year follow-up. Patients with longer duration of symptoms also demonstrated less improvement in HOS-SS (β = −10.3, P = .001) at 2 years after surgery. Patients with symptoms for 2 years or longer were significantly less likely to achieve a patient acceptable symptomatic state for HOS-ADL (relative risk [RR] = 0.8, P = .024) and HOS-SS (RR = 0.8, P = .032) at 2 years of follow-up. Patients with symptoms 2 years or longer also demonstrated significantly higher rates of revision arthroscopy (RR = 10.1, P = .046). Conclusion: Patients with untreated, FAIS-related symptoms lasting 2 years or longer before arthroscopic management had significantly worse patient-reported outcomes and higher rates of reoperation at 2 years after surgery when compared with those patients with a shorter duration of preoperative symptoms.

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Spine Surgery and Preoperative Hemoglobin, Hematocrit, and Hemoglobin A1c: A Systematic Review

Global Spine Journal ◽

10.1177/2192568220979821 ◽

2021 ◽

pp. 219256822097982

Author(s):

Krishna V. Suresh ◽

Kevin Wang ◽

Ishaan Sethi ◽

Bo Zhang ◽

Adam Margalit ◽

...

Keyword(s):

Systematic Review ◽

Postoperative Complications ◽

Spine Surgery ◽

Postoperative Infection ◽

Lumbar Fusion ◽

Adult Patients ◽

Cochrane Library ◽

Cardiac Events ◽

Level Of Evidence ◽

Increased Risk

Study Design: Systematic review. Objectives: Synthesize previous studies evaluating clinical utility of preoperative Hb/Hct and HbA1c in patients undergoing common spinal procedures: anterior cervical discectomy and fusion (ACDF), posterior cervical fusion (PCF), posterior lumbar fusion (PLF), and lumbar decompression (LD). Methods: We queried PubMed, Embase, Cochrane Library, and Web of Science for literature on preoperative Hb/Hct and HbA1c and post-operative outcomes in adult patients undergoing ACDF, PCF, PLF, or LD surgeries. Results: Total of 4,307 publications were assessed. Twenty-one articles met inclusion criteria. PCF and ACDF: Decreased preoperative Hb/Hct were significant predictors of increased postoperative morbidity, including return to operating room, pulmonary complications, transfusions, and increased length of stay (LOS). For increased HbA1c, there was significant increase in risk of postoperative infection and cost of hospital stay. PLF: Decreased Hb/Hct was reported to be associated with increased risk of postoperative cardiac events, blood transfusion, and increased LOS. Elevated HbA1c was associated with increased risk of infection as well as higher visual analogue scores (VAS) and Oswestry disability index (ODI) scores. LD: LOS and total episode of care cost were increased in patients with preoperative HbA1c elevation. Conclusion: In adult patients undergoing spine surgery, preoperative Hb/Hct are clinically useful predictors for postoperative complications, transfusion rates, and LOS, and HbA1c is predictive for postoperative infection and functional outcomes. Using Hct values <35-38% and HbA1c >6.5%-6.9% for identifying patients at higher risk of postoperative complications is most supported by the literature. We recommend obtaining these labs as part of routine pre-operative risk stratification. Level of Evidence: III

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Head Impact Exposures Among Youth Tackle and Flag American Football Athletes

Sports Health A Multidisciplinary Approach ◽

10.1177/1941738121992324 ◽

2021 ◽

pp. 194173812199232

Author(s):

Dana Waltzman ◽

Kelly Sarmiento ◽

Owen Devine ◽

Xinjian Zhang ◽

Lara DePadilla ◽

...

Keyword(s):

Cohort Study ◽

Head Impact ◽

American Football ◽

Level Of Evidence ◽

Head Impacts ◽

High Magnitude ◽

Increased Risk ◽

Or Practice ◽

Observational Prospective Cohort Study ◽

Tackle Football

Background: Promoted as a safer alternative to tackle football, there has been an increase in flag football participation in recent years. However, examinations of head impact exposure in flag football as compared with tackle football are currently limited. Hypothesis: Tackle football athletes will have a greater number and magnitude of head impacts compared with flag football athletes. Study Design: Cohort study. Level of Evidence: Level 4. Methods: Using mouthguard sensors, this observational, prospective cohort study captured data on the number and magnitude of head impacts among 524 male tackle and flag football athletes (6-14 years old) over the course of a single football season. Estimates of interest based on regression models used Bayesian methods to estimate differences between tackle and flag athletes. Results: There were 186,239 head impacts recorded during the study. Tackle football athletes were 14.67 (95% CI 9.75-21.95) times more likely to sustain a head impact during an athletic exposure (game or practice) compared with flag football athletes. Magnitude of impact for the 50th and 95th percentile was 18.15 g (17.95-18.34) and 52.55 g (51.06-54.09) for a tackle football athlete and 16.84 g (15.57-18.21) and 33.51 g (28.23-39.08) for a flag football athlete, respectively. A tackle football athlete sustained 23.00 (13.59-39.55) times more high-magnitude impacts (≥40 g) per athletic exposure compared with a flag football athlete. Conclusion: This study demonstrates that youth athletes who play tackle football are more likely to experience a greater number of head impacts and are at a markedly increased risk for high-magnitude impacts compared with flag football athletes. Clinical Relevance: These results suggest that flag football has fewer head impact exposures, which potentially minimizes concussion risk, making it a safer alternative for 6- to 14-year-old youth football athletes.

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Feasibility of Early Discharge after Open Hypopharyngeal Surgery for Dysphagia

Annals of Otology Rhinology & Laryngology ◽

10.1177/0003489420916216 ◽

2020 ◽

Vol 129 (9) ◽

pp. 894-900

Author(s):

Jena Patel ◽

Joseph Spiegel ◽

Michael C. Topf ◽

Maurits Boon ◽

Colin Huntley

Keyword(s):

Postoperative Complications ◽

Oral Intake ◽

Retrospective Chart Review ◽

Unplanned Readmission ◽

Esophageal Mucosa ◽

Eligibility Criteria ◽

Level Of Evidence ◽

Early Return ◽

Increased Risk

Objective: To determine the rate of surgical complications, unplanned readmission, and functional status after open hypopharyngeal surgery for dysphagia with early return to oral diet and hospital discharge. Methods: Retrospective chart review of patients who underwent open hypopharyngeal surgery for management of dysphagia from March 2013 to June 2018 at a single academic institution. A clear liquid diet is restarted the day of surgery and is advanced to a soft diet on postoperative day one. Univariate and multivariate logistic regression was performed to identify risk factors for postoperative complications and unplanned readmission. Results: Ninety patients met eligibility criteria; 62 patients underwent open cricopharyngeal myotomy, 13 underwent Zenker’s diverticulectomy, 15 had a Zenker’s diverticulopexy. Mean inpatient length of stay was 2.0 ± 2.0 days (range 0-11 days); 57 patients (63.3%) were discharged on the same day as surgery or on postoperative day one. Seven patients (7.8%) had postoperative complications; the most common complication was esophageal leak (n = 6). Six patients (6.7%) had unplanned readmissions within 30 days. Mean time to unplanned readmission was 12 days (range 2-19 days). Open diverticulectomy was associated with an increased risk of unplanned readmission with an OR = 7.63 (95% CI 1.29, 45.45, P = .025). At last follow-up, 70% of patients had an increased functional oral intake by at least one scale score (FOIS) after surgery (mean follow-up 0.8 ± 1.1 years, range 0.02-5.1 years). Conclusion: An early diet and discharge may be safe for patients undergoing open surgery without a mechanical or suture closure of their esophageal mucosa, whereas in those undergoing diverticulectomy, NPO status and a radiological check before resuming drinking and eating are advised. Level of Evidence: 4

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The Perioperative Continuation of Aspirin in Patients Undergoing Arthroscopic Surgery of the Knee

The American Journal of Sports Medicine ◽

10.1177/0363546519855643 ◽

2019 ◽

Vol 47 (9) ◽

pp. 2138-2142

Author(s):

Ljiljana Bogunovic ◽

Amanda K. Haas ◽

Robert H. Brophy ◽

Matthew J. Matava ◽

Matthew V. Smith ◽

...

Keyword(s):

Cohort Study ◽

Knee Arthroscopy ◽

Surgical Complication ◽

Arthroscopic Surgery ◽

Wound Complications ◽

Complication Rates ◽

Level Of Evidence ◽

Hematoma Formation ◽

Significant Difference ◽

Daily Aspirin

Background: The perioperative withdrawal of aspirin increases the risk of cardiac, neurologic, and vascular thromboembolic events. The safety of continuing aspirin in patients undergoing knee arthroscopy is unknown. Hypothesis: Perioperative continuation of aspirin does not increase surgical complications or worsen outcomes in patients 50 years of age and older undergoing knee arthroscopy. Study Design: Cohort study; Level of evidence, 3. Methods: This is a single-center, institutional review board–approved, prospective matched dual-cohort study comparing the surgical complication rates and postoperative outcomes of patients taking daily aspirin with those of unmedicated controls. Ninety patients who were 50 years of age or older and taking 81 mg or 325 mg daily aspirin were matched to 90 controls. Patients were matched on age, surgery type, and the use of a tourniquet. A complication was defined as bleeding, wound dehiscence, or wound infection requiring reoperation. Postoperative outcome measures including hematoma formation, extent of ecchymosis (mm), visual analog scale (VAS) scores for pain and swelling, and the Knee Injury and Osteoarthritis Outcome Score (KOOS) were collected preoperatively and postoperatively (10-14 days and 4-6 weeks). Results: There were no complications (0%) in either cohort. There was no difference in hematoma formation (aspirin, 1.8%; controls, 2.4%; P = .79), incidence of ecchymosis (aspirin, 17%; controls, 21%; P = .70), or the average extent of ecchymosis (aspirin, 124.6 mm; controls, 80.3 mm; P = .36) between patients taking aspirin and controls. There was no significant difference in pre- or postoperative knee range of motion between controls and patients taking aspirin. The KOOS subscores and VAS pain scores were similar between patients taking aspirin and controls at baseline and at follow-up. Conclusion: The perioperative continuation of daily aspirin in patients 50 years of age and older undergoing arthroscopic procedures of the knee is safe and does not result in an increased rate of bleeding or wound complications requiring reoperation. Continued aspirin use in patients 50 years of age and older had no significant effect on postoperative physical examination measures or patient-rated outcome scores.

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