Effect of operative time on complications following primary total hip arthroplasty: analysis of the NSQIP database

2020 ◽  
pp. 112070002094970
Author(s):  
Mark Sikov ◽  
Matthew Sloan ◽  
Neil P Sheth

Background: Long operative times in total hip arthroplasty (THA) have been shown to be associated with increased risk of revision as well as perioperative morbidity. This study assesses the effect of extended operative times on complication rates following primary THA using the most recent national data. Methods: The National Surgical Quality Improvement Program (NSQIP) database (2008–2016) was queried for primary THA. Groups were defined by operative time 1 standard deviation (1 SD) above the mean. Univariate, propensity score-matched, and multivariate logistic regression analyses were performed to evaluate outcomes. Results: Data was available for 135,013 THA patients. Among these groups, mean operative time in the extended operative time group was 166 minutes (compared with 82 minutes). Patients undergoing longer operative times were 3.8 years younger, had a 1.5 kg/m2 higher body mass index and had a 0.5 day longer mean length of stay. Propensity matching identified 16,123 pairs for analysis in the 1 SD group. Longer operative time led to 173% increased risk of major medical morbidity, 140% increased likelihood of length of stay greater than 5 days, 59% increased risk of reoperation, 45% increased risk of readmission, and a 30% decreased likelihood of return to home postoperatively. There was no increased risk of death within 30 days. Conclusion: Long operative times were associated with increases in multiple postoperative complications, but not mortality. Surgeons should be advised to take steps to minimise operative time by adequate preoperative planning and optimal team communication.

2020 ◽  
pp. 112070002097574
Author(s):  
Chapman Wei ◽  
Alex Gu ◽  
Arun Muthiah ◽  
Safa C Fassihi ◽  
Peter K Sculco ◽  
...  

Background: As the incidence of primary total hip arthroplasty (THA) continues to increase, revision THA (rTHA) is becoming an increasingly common procedure. rTHA is widely regarded as a more challenging procedure, with higher complication rates and increased medical, social and economic burdens when compared to its primary counterpart. Given the complexity of rTHA and the projected increase in incidence of these procedures, patient optimisation is becoming of interest to improve outcomes. Anaesthetic choice has been extensively studied in primary THA as a modifiable risk factor for postoperative outcomes, showing favourable results for neuraxial anaesthesia compared to general anaesthesia. The impact of anaesthetic choice in rTHA has not been studied previously. Methods: A retrospective study was performed using the American College of Surgeons National Surgical Quality Improvement Program database. Patients who underwent rTHA between 2014 and 2017 were divided into 3 anaesthesia cohorts: general anaesthesia, neuraxial anaesthesia, and combined general-regional (neuraxial and/or peripheral nerve block) anaesthesia. Univariate and multivariate analyses were used to analyse patient characteristics and 30-day postoperative outcomes. Bonferroni correction was applied for post-hoc analysis. Results: In total, 5759 patients were identified. Of these, 3551 (61.7%) patients underwent general anaesthesia, 1513 (26.3%) patients underwent neuraxial anaesthesia, and 695 (12.1%) patients underwent combined general-regional anaesthesia. On multivariate analysis, neuraxial anaesthesia was associated with decreased odds for any-one complication (OR 0.635; p  < 0.001), perioperative blood transfusion (OR 0.641; p  < 0.001), and extended length of stay (OR 0.005; p = 0.005) compared to general anaesthesia. Conclusions: Relative to those receiving general anaesthesia, patients undergoing neuraxial anaesthesia are at decreased risk for postoperative complications, perioperative blood transfusions, and extended length of stay. Prospective controlled trials should be conducted to verify these findings.


2019 ◽  
Vol 101 (5) ◽  
pp. 342-345
Author(s):  
J Craik ◽  
R Geleit ◽  
J Hiddema ◽  
E Bray ◽  
R Hampton ◽  
...  

Introduction Total hip arthroplasty is recommended for elderly patients with fractured neck of femur who are independently mobile, have few co-morbidities and are not cognitively impaired. Providing a daily total hip arthroplasty service is challenging for some units in the UK and considering that these patients may be physiologically distinct from the average hip fracture patient, loss of the best practice tariff as a result of surgical delay may be unjustified. The aim of this study was to determine whether time to surgical intervention for patients eligible for total hip arthroplasty had a negative impact on patient complications, length of stay and functional outcomes. Methods All patients undergoing total hip arthroplasty for fractured neck of femur at our institution over a ten-year period were identified. Complications and functional outcomes were compared between patients receiving total hip arthroplasty before and after 36 hours. Results Of 112 consecutive patients undergoing total hip arthroplasty, 70 responded to a questionnaire or telephone consultation. Four patients were excluded owing to delayed presentation, the presence of advanced rheumatoid arthritis or a pathological fracture. Two-thirds (64%) of the remaining 66 patients underwent surgery within 36 hours of presentation. There were no significant differences between the groups of patients receiving surgery before or after 36 hours with regard to postoperative length of stay, complications, Oxford hip scores or visual analogue scale scores for state of health. Conclusions Delaying surgery for patients eligible for total hip arthroplasty as per the National Institute for Health and Care Excellence guidelines is justified and should not incur loss of the best practice tariff.


2019 ◽  
Vol 30 (5) ◽  
pp. 552-558 ◽  
Author(s):  
Eleftherios Tsiridis ◽  
Eustathios Kenanidis ◽  
Michael Potoupnis ◽  
Fares E Sayegh

Introduction: Direct Superior Approach (DSA) is a muscle sparing approach for total hip arthroplasty (THA) implemented using special instrumentation. There is a lack of information in the literature concerning DSA with standard instrumentation. Materials and methods: 238 patients were recruited for primary THA by a single surgeon from January 2016 until May 2017. 209 patients underwent THA through DSA approach with non-offset acetabular reamers and femoral broaches. We evaluated accuracy of implantation, complications and early functional results. Independent orthopaedic surgeons performed the clinical and radiographic assessments. Results: 200 patients were followed for a year. 3 different implants were used. No sciatic nerve palsies, hip dislocations or fractures were recorded. There was one acute deep and superficial wound infection. The mean functional score was significantly improved at all follow-ups ( p < 0.001). 97% of stems were inserted into the neutral coronal and 96% in neutral sagittal alignment. All cups fell within a safe zone of inclination and 91% of anteversion. 2 hips demonstrated heterotopic ossification, Brooker class I. Obese patients had no increased risk of complications. Conclusions: DSA with standard instrumentation is safe and efficacious for THA. It offers fast recovery and facilitates correct implantation of different implants, can be useful even for hip dysplasia and obese patients with minimal complication rates.


2021 ◽  
pp. 112070002098883
Author(s):  
Matthew L Webb ◽  
Marissa A Justen ◽  
Yehuda E Kerbel ◽  
Christopher M Scanlon ◽  
Charles L Nelson ◽  
...  

Background: The prevalence of diabetes mellitus (DM) continues to increase among patients undergoing total hip arthroplasty (THA). It is unclear how insulin use is correlated with risk for adverse outcomes. Methods: A cohort of 146,526 patients undergoing primary THA were identified in the 2005–2017 National Surgical Quality Improvement Program database. Patients were classified as insulin-dependent diabetic (IDDM), non-insulin-dependent diabetic (NIDDM), or not diabetic. Multivariate analyses were used. Results: Compared to patients without diabetes, patients with NIDDM were at increased risk for 4 of 17 perioperative adverse outcomes studied. Patients with IDDM were at increased risk for those 4 and 8 additional adverse outcomes (12 of the 17 studied). Conclusion: These findings have important implications for preoperative risk stratification and quality improvement initiatives.


2020 ◽  
Vol 4 (03) ◽  
pp. 101-109
Author(s):  
David Novikov ◽  
Tyler A. Luthringer ◽  
Zlatan Cizmic ◽  
Hayeem L. Rudy ◽  
Siddharth Mahure ◽  
...  

AbstractDespite the increasing frequency of younger patients undergoing total hip arthroplasty (THA), very few, if any, studies report on postoperative outcomes that specifically compare the two most commonly used approaches in this age group. The purpose of our study is to assess whether surgical approach affects postoperative outcomes in THA patients younger than 35 years. A retrospective analysis of 115 patients younger than 35 years that underwent primary unilateral THA between January 2013 and April 2018 was conducted. Patients were divided into two cohorts: (1) patients that underwent THA utilizing the anterior approach and (2) patients that underwent THA utilizing the posterior approach. Subanalysis controlling for surgical case complexity and use of robotic assistance was performed. Radiographic analysis included measurement of perioperative leg length discrepancies. Of the total 115 patients, 37 were in the anterior THA cohort, and 78 were in the posterior THA cohort. All baseline patient characteristics were similar among both cohorts. Patients in the anterior THA cohort had shorter mean operative times (95 vs. 121 minutes; p < 0.01) and shorter mean hospital length of stay or LOS (1.9 vs. 2.8 days; p < 0.01). Leg length discrepancies, dislocation, revision, and all-cause postoperative complication rates were similar between both cohorts. When excluding complex cases and use of robotic assistance (anterior n = 36, posterior n = 39), there was no difference in operative time, LOS, or postoperative outcomes. Our study suggests that surgically complex patients were more likely to undergo posterior rather than anterior THA. When controlling for surgical complexity and use of robotic assistance, no difference between approach with respect to operative time, hospital LOS, dislocation, revision, and all-cause postoperative surgical complication rates in THA recipients under 35 years of age was found. The results suggest that the anterior and posterior approaches can be equally effective for the majority of young THA patients.


2020 ◽  
Vol 102-B (9) ◽  
pp. 1146-1150
Author(s):  
Alistair I. W. Mayne ◽  
Roslyn S. Cassidy ◽  
Paul Magill ◽  
Owen J. Diamond ◽  
David E. Beverland

Aims Previous research has demonstrated increased early complication rates following total hip arthroplasty (THA) in obese patients, as defined by body mass index (BMI). Subcutaneous fat depth (FD) has been shown to be an independent risk factor for wound infection in cervical and lumbar spine surgery, as well as after abdominal laparotomy. The aim of this study was to investigate whether increased peritrochanteric FD was associated with an increased risk of complications in the first year following THA. Methods We analyzed prospectively collected data on a consecutive series of 1,220 primary THAs from June 2013 until May 2018. The vertical soft tissue depth from the most prominent part of the greater trochanter to the skin was measured intraoperatively using a sterile ruler and recorded to the nearest millimetre. BMI was calculated at the patient’s preoperative assessment. All surgical complications occuring within the initial 12 months of follow-up were identified. Results Females had a significantly greater FD at the greater trochanter in comparison to males (median 3.0 cm (interquartile range (IQR) 2.3 to 4.0) vs 2.0 cm (IQR 1.7 to 3.0); p < 0.001) despite equivalent BMI between sexes (male median BMI 30.0 kg/m2 (IQR 27.0 to 33.0); female median 29.0 kg/m2 (IQR 25.0 to 33.0)). FD showed a weak correlation with BMI (R² 0.41 males and R² 0.43 females). Patients with the greatest FD (upper quartile) were at no greater risk of complications compared with patients with the lowest FD (lower quartile); 7/311 (2.3%) vs 9/439 (2.1%); p = 0.820 . Conversely, patients with the highest BMI (≥ 40 kg/m2) had a significantly increased risk of complications compared with patients with lower BMI (< 40 kg/m2); 5/60 (8.3% vs 18/1,160 (1.6%), odds ratio (OR) 5.77 (95% confidence interval (CI) 2.1 to 16.1; p = 0.001)). Conclusion We found no relationship between peritrochanteric FD and the risk of surgical complications following primary THA. Cite this article: Bone Joint J 2020;102-B(9):1146–1150.


2020 ◽  
Vol 102-B (7_Supple_B) ◽  
pp. 62-70
Author(s):  
Geoffrey Tompkins ◽  
Chris Neighorn ◽  
Hsin-Fang Li ◽  
Kevin Fleming ◽  
Tom Lorish ◽  
...  

Aims High body mass index (BMI) is associated with increased rates of complications in primary total hip arthroplasty (THA), but less is known about its impact on cost. The effects of low BMI on outcomes and cost are less understood. This study evaluated the relationship between BMI, inpatient costs, complications, readmissions, and utilization of post-acute services. Methods A retrospective database analysis of 40,913 primary THAs performed between January 2013 and December 2017 in 29 hospitals was conducted. Operating time, length of stay (LOS), complication rate, 30-day readmission rate, inpatient cost, and utilization of post-acute services were measured and compared in relation to patient BMI. Results Mean operating time increased with BMI and for BMI > 50 kg/m2 was approximately twice that of BMI 10 kg/m2 to 15 kg/m2. Mean inpatient cost did not vary significantly with BMI. Mean total reimbursement was lowest for the lowest BMI cohort and increased with BMI. Mean LOS was greatest at the extremes of BMI (4.0 days for BMI 10 kg/m2 to 15 kg/m2; 3.75 days for BMI > 50 kg/m2) and twice that of normal BMI. Mean complication rates were greatest in the lowest BMI cohort (16% for BMI 10 kg/m2 to 15 kg/m2) and five times the mean rate of complications in the normal BMI cohorts. Furthermore, 30-day readmissions were greatest in the highest BMI cohort (10% for BMI > 50 kg/m2) and five times the rate for normal BMI patients. Conclusion LOS, complications, and 30-day readmissions all increase at the extremes of BMI and appear to be greater than those of patients with normal BMI. The lowest BMI patients had the lowest payment for inpatient stay yet were at considerable risk for complications and readmission. Patients with extreme BMI should be counselled about their increased risk of complications for THA and nutritional status/obesity optimized preoperatively if possible. Cite this article: Bone Joint J 2020;102-B(7 Supple B):62–70.


2019 ◽  
Vol 29 (6) ◽  
pp. 597-602 ◽  
Author(s):  
Georgios K Triantafyllopoulos ◽  
Stavros G Memtsoudis ◽  
Haijun Wang ◽  
Yan Ma ◽  
Michael M Alexiades ◽  
...  

Background: There is a concern for higher rates of wound complications and a potentially increased periprosthetic joint infection (PJI) risk after total hip arthroplasty (THA) with the direct anterior approach (DAA) compared to the posterolateral approach (PLA). Our purpose was to compare PJI risk after THA with the DAA or the PLA and to identify risk factors for PJI after primary THA. Methods: Clinical characteristics of patients treated in our institution with primary DAA or PLA THA between 1/2010 and 12/2015 were retrospectively reviewed. The respective deep PJI rates were calculated. A logistic regression model was constructed to determine a potential difference in the PJI risk between the 2 groups, and risk factors for hip PJI in all patients. Results: During the period studied, there were 1,182 DAA THAs and 18,853 PLA THAs. The PJI rate was 0.25% for the DAA group and 0.31% for the PLA group ( p = 1.0). The DAA was not associated with a significantly increased risk for PJI compared to the PLA. Compared to younger patients, older patients had lower PJI risk; patient discharge to home was also associated with lower PJI risk compared to other discharge disposition; longer length of stay was associated with higher PJI risk compared to shorter length of stay. Conclusion: The DAA is equally safe compared the PLA with respect to PJI risk. Younger age, discharge to facilities other than home and increased length of stay increase the risk for deep PJI after primary THA.


2019 ◽  
Vol 30 (5) ◽  
pp. 635-640
Author(s):  
Jared M Newman ◽  
Nipun Sodhi ◽  
Anton Khlopas ◽  
Nicolas S Piuzzi ◽  
George A Yakubek ◽  
...  

Introduction: This study sought to determine the effect that malnutrition, defined as hypoalbuminemia, has on hip fracture patients treated with total hip arthroplasty (THA). Specifically, we evaluated: (1) demographics and perioperative data; (2) postoperative complications; and (3) re-operation rates. Methods: The National Surgical Quality Improvement Program database was utilised to identify hip fracture patients who underwent THA from 2008 to 2015. Propensity scores were calculated for the likelihood of having a preoperative albumin measurement. Hip fracture patients who underwent THA and had preoperative hypoalbuminemia (<3.5 g/dL) ( n = 569) were compared to those who had normal albumin levels (⩾3.5 g/dL) ( n = 1098) in terms of demographics and perioperative data. Regression models were adjusted for age, sex, modified Charlson/Deyo scores, and propensity scores to evaluate complication and re-operation rates. Results: Compared to controls, hypoalbuminemia patients were older (p = 0.006), more likely male ( p = 0.024), had higher Charlson/Deyo scores ( p = 0.0001), more likely smokers ( p < 0.0001), more likely functionally dependent ( p < 0.0001), had ASA scores ⩾3 ( p < 0.0001) and had longer LOS ( p < 0.0001). Compared to controls, hypoalbuminemia patients had 80% higher risk for any complication (OR = 1.80; 95% CI, 1.43–2.26), 113% higher risk for major complications (OR = 2.13; 95% CI, 1.31–3.48), and 79% higher risk for minor complications (OR = 1.79; 95% CI, 1.42–2.26), and 97% increased risk for re-operation (OR = 1.97; 95% CI, 1.20–3.23). Conclusions: The findings in the present study indicate the need to develop better pre- and postoperative medical and nutritional care for malnourished hip fracture patients who undergo THA in order to potentially mitigate their increased risk.


Author(s):  
P. Hemmann ◽  
F. Schmidutz ◽  
M. D. Ahrend ◽  
S. G. Yan ◽  
U. Stöckle ◽  
...  

Abstract Background Higher complication rates have been reported for total hip arthroplasty (THA) after osteosynthesis of proximal femur fractures (PFF). This study evaluated the infection risk for conversion of internal fixation of PFF to THA by a single-staged procedure in the absence of clear infection signs. Methods Patients undergoing a one-staged conversion to THA (2013–2018) after prior internal fixation of the proximal femur were included. Preoperative diagnostics with laboratory results, hip aspirations as well as intraoperative microbiology and sonication were assessed. Postoperative complications were recorded as well as patient demographics, duration between initial and conversion to THA, explanted osteosynthesis and implanted THA. Results Fifty-eight patients (24 male/34 female, 62.8 ± 14.5 years) were included with a mean time of 3.8 ± 7.5 years between internal fixation and conversion to THA (45 cementless, 3 cemented, 3 hybrid and 7 hybrid inverse THAs). Preoperative mean blood level CRP was 8.36 ± 14 mg/l (reference value < 5 mg/l) and leukocyte count was 7.11 ± 1.84^3/µl (4.5–10.000^3/µl). Fifty patients had intraoperative microbiological diagnostics, with either swabs in 86.2% and/or sonication in 29.3%. Positive microbiological results were recorded in 10% (5 of 50 patients), with pathogens identified being mainly Staphylococcus. Complications after conversion occurred in 9.6% including a postoperative low-grade infection rate of 5.8% after a mean of 2.5 years. Conclusion This study found a positive microbiological test result in 10% of a one-stage conversion of PFF fixation to THA. Moreover, we found a high infection rate (5.8%) for early postoperative periprosthetic joint infection. Interestingly, CRP has not been proven to be an adequate parameter for low-grade infections or occult colonized implants. Therefore, we recommend a comprehensive pre- and intraoperative diagnostic including hip aspiration, swabs and sonication when considering one-staged revision.


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