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Orfanos G, Nantha Kumar N, Redfern D, Burston B, Banerjee R, Thomas G. The incidence and risk factors for abnormal postoperative blood tests following primary total joint replacement. Bone Jt Open 2023; 4:899-905. [PMID: 37995746 PMCID: PMC10667041 DOI: 10.1302/2633-1462.411.bjo-2023-0137.r1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2023] Open
Abstract
Aims We aim to evaluate the usefulness of postoperative blood tests by investigating the incidence of abnormal results following total joint replacement (TJR), as well as identifying preoperative risk factors for abnormal blood test results postoperatively, especially pertaining to anaemia and acute kidney injury (AKI). Methods This is a retrospective cohort study of patients who had elective TJR between January and December 2019 at a tertiary centre. Data gathered included age at time of surgery, sex, BMI, American Society of Anesthesiologists (ASA) grade, preoperative and postoperative laboratory test results, haemoglobin (Hgb), white blood count (WBC), haematocrit (Hct), platelets (Plts), sodium (Na+), potassium (K+), creatinine (Cr), estimated glomerular filtration rate (eGFR), and Ferritin (ug/l). Abnormal blood tests, AKI, electrolyte imbalance, anaemia, transfusion, reoperation, and readmission within one year were reported. Results The study included 2,721 patients with a mean age of 69 years, of whom 1,266 (46.6%) were male. Abnormal postoperative bloods were identified in 444 (16.3%) patients. We identified age (≥ 65 years), female sex, and ASA grade ≥ III as risk factors for developing abnormal postoperative blood tests. Preoperative haemoglobin (≤ 127 g/dl) and packed cell volume (≤ 0.395 l/l) were noted to be significant risk factors for postoperative anaemia, and potassium (≤ 3.7 mmol/l) was noted to be a significant risk factor for AKI. Conclusion The costs outweigh the benefits of ordering routine postoperative blood tests in TJR patients. Clinicians should risk-stratify their patients and have a lower threshold for ordering blood tests in patients with abnormal preoperative haemoglobin (≤ 127 g/l), blood loss > 300 ml, chronic kidney disease, ASA grade ≥ III, and clinical concern.
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Affiliation(s)
- Georgios Orfanos
- The Robert Jones and Agnes Hunt Orthopaedic Hospital NHS Foundation Trust, Oswestry, UK
| | - Nakulan Nantha Kumar
- Royal Stoke University Hospital, University Hospitals of North Midlands NHS Trust, Stoke-on-Trent, UK
- Keele University, Newcastle, UK
| | - Daniel Redfern
- The Robert Jones and Agnes Hunt Orthopaedic Hospital NHS Foundation Trust, Oswestry, UK
| | - Ben Burston
- The Robert Jones and Agnes Hunt Orthopaedic Hospital NHS Foundation Trust, Oswestry, UK
| | - Robin Banerjee
- The Robert Jones and Agnes Hunt Orthopaedic Hospital NHS Foundation Trust, Oswestry, UK
| | - Geraint Thomas
- The Robert Jones and Agnes Hunt Orthopaedic Hospital NHS Foundation Trust, Oswestry, UK
- Keele University, Newcastle, UK
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Lung BE, Donnelly MR, Callan K, McLellan M, Taka T, Stitzlein RN, McMaster WC, So DH, Yang S. Preoperative demographics and laboratory markers may be associated with early dislocation after total hip arthroplasty. J Exp Orthop 2023; 10:100. [PMID: 37801165 PMCID: PMC10558409 DOI: 10.1186/s40634-023-00659-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Accepted: 09/18/2023] [Indexed: 10/07/2023] Open
Abstract
PURPOSE The purpose of this study was to identify modifiable medical comorbidities, laboratory markers and flaws in perioperative management that increase the risk of acute dislocation in total hip arthroplasty (THA) patients. METHODS All THA with primary indications of osteoarthritis from 2007 to 2020 were queried from the National Surgical Quality Improvement Program (NSQIP) database. Demographic data, preoperative laboratory values, recorded past medical history, operative details as well as outcome and complication information were collected. The study population was divided into two cohorts: non-dislocation and dislocation patients. Statistics were performed to compare the characteristics of both cohorts and to identify risk factors for prosthetic dislocation (α < 0.05). RESULTS 275,107 patients underwent primary THA in 2007 to 2020, of which 1,258 (0.5%) patients experienced a prosthetic hip dislocation. Demographics between non-dislocation and dislocation cohorts varied significantly in that dislocation patients were more likely to be female, older, with lower body mass index and a more extensive past medical history (all p < 0.05). Moreover, hypoalbuminemia and moderate/severe anemia were associated with increased risk of dislocation in a multivariate model (all p < 0.05). Finally, use of general anesthesia, longer operative time, and longer length of hospital stay correlated with greater risk of prosthetic dislocation (all p < 0.05). CONCLUSIONS Elderly female patients and patients with certain abnormal preoperative laboratory values are at risk for sustaining acute dislocations after index THA. Careful interdisciplinary planning and medical optimization should be considered in high-risk patients as dislocations significantly increase the risk of sepsis, cerebral vascular accident, and blood transfusions on readmission.
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Affiliation(s)
- Brandon E Lung
- Irvine School of Medicine, Department of Orthopaedic Surgery, University of California, 101 The City Drive South, Pavilion III, Building 29A, Orange, CA, 92868, USA.
| | - Megan R Donnelly
- Irvine School of Medicine, Department of Orthopaedic Surgery, University of California, 101 The City Drive South, Pavilion III, Building 29A, Orange, CA, 92868, USA
| | - Kylie Callan
- Irvine School of Medicine, Department of Orthopaedic Surgery, University of California, 101 The City Drive South, Pavilion III, Building 29A, Orange, CA, 92868, USA
| | - Maddison McLellan
- Irvine School of Medicine, Department of Orthopaedic Surgery, University of California, 101 The City Drive South, Pavilion III, Building 29A, Orange, CA, 92868, USA
| | - Taha Taka
- Irvine School of Medicine, Department of Orthopaedic Surgery, University of California, 101 The City Drive South, Pavilion III, Building 29A, Orange, CA, 92868, USA
| | - Russell N Stitzlein
- Irvine School of Medicine, Department of Orthopaedic Surgery, University of California, 101 The City Drive South, Pavilion III, Building 29A, Orange, CA, 92868, USA
| | - William C McMaster
- Irvine School of Medicine, Department of Orthopaedic Surgery, University of California, 101 The City Drive South, Pavilion III, Building 29A, Orange, CA, 92868, USA
| | - David H So
- Irvine School of Medicine, Department of Orthopaedic Surgery, University of California, 101 The City Drive South, Pavilion III, Building 29A, Orange, CA, 92868, USA
| | - Steven Yang
- Irvine School of Medicine, Department of Orthopaedic Surgery, University of California, 101 The City Drive South, Pavilion III, Building 29A, Orange, CA, 92868, USA
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Baker CM, Goh GS, Tarabichi S, Sherman MB, Khan IA, Parvizi J. Hyponatremia Is an Overlooked Sign of Trouble Following Total Joint Arthroplasty. J Bone Joint Surg Am 2023; 105:744-754. [PMID: 37000860 DOI: 10.2106/jbjs.22.00928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
BACKGROUND Hyponatremia is a common electrolyte abnormality in arthroplasty patients. This issue, underrecognized by surgeons, can impact the postoperative course of patients. There are, however, little data on the implications of sodium disturbances following total joint arthroplasty (TJA). The primary aims of this study were to (1) report the rate of hyponatremia following TJA, and (2) examine the impact of hyponatremia on the perioperative course of TJA patients. METHODS This was a retrospective analysis of 3,071 primary and revision TJAs performed between 2015 and 2017. Based on preoperative and postoperative sodium values (pre-post), patients were classified into 4 groups: normonatremic-normonatremic (Group 1), normonatremic-hyponatremic (Group 2), hyponatremic-normonatremic (Group 3), and hyponatremic-hyponatremic (Group 4). Primary end points were length of stay (LOS), postoperative discharge, in-hospital complications, and 90-day readmissions. RESULTS The distribution of cases was 84.6% Group 1, 9.4% Group 2, 2.1% Group 3, and 3.8% Group 4. Overall, 13.2% of patients had hyponatremia after TJA. Older age, hip arthroplasty, general anesthesia, higher Charlson Comorbidity Index, congestive heart failure, revision surgery, and history of stroke, liver disease, and chronic kidney disease were risk factors for postoperative hyponatremia. Patients with postoperative hyponatremia (Groups 2 and 4) had greater likelihoods of having a 90-day complication and non-home discharge and greater LOS. CONCLUSIONS Postoperative hyponatremia was a relatively common occurrence in patients undergoing TJA, and was associated with greater LOS, complications, and non-home discharge. Surgeons should identify patients at risk for developing sodium abnormalities in order to optimize these patients and avoid increased resource utilization. LEVEL OF EVIDENCE Prognostic Level III . See Instructions for Authors for a complete description of levels of evidence.
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Affiliation(s)
- Colin M Baker
- Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, Pennsylvania
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An adolescent with adnexal torsion presenting with severe hyponatremia. JOURNAL OF PEDIATRIC SURGERY CASE REPORTS 2023. [DOI: 10.1016/j.epsc.2023.102613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023] Open
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Briguglio M, Wainwright TW, Crespi T, Southern K, Mangiavini L, Craig J, Middleton RG. Oral Hydration Before and After Hip Replacement: The Notion Behind Every Action. Geriatr Orthop Surg Rehabil 2022; 13:21514593221138665. [PMID: 36393900 PMCID: PMC9647305 DOI: 10.1177/21514593221138665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 10/25/2022] [Indexed: 11/11/2022] Open
Abstract
Introduction Even though nearly 20 patients undergo hip replacement every hour just in
Italy and the United Kingdom, it is unclear what are the most appropriate
oral hydration practices that patients should follow before and after
surgery. Improper administration can cause postoperative fluid disturbances
or exacerbate pre-existing conditions, which are not an uncommon find in
older subjects. Significance Considering that the number of hip operations is expected to increase in the
next years as well as the age of patients, it is important to recall the
notions behind water balance, especially in light of modern surgical and
anesthetic practices. This technical perspective discusses the perioperative
changes in the hydration status that occur during hip replacement and
provides the concepts that help clinicians to better manage how much water
the patient can drink. Results The points of view of the surgeon, the anesthetist, and the nurse are offered
together with the description of mineral waters intended for human
consumption. Before surgery, water should be always preferred over
caffeinated, sugar-sweetened, and alcoholic beverages. The drinking
requirements on the day of surgery should consider the water output from
urine, feces, respiration, exudation, and bleeding along with the water
input from metabolic production and intravenous administration of fluids and
medications. Healthy eating habits provide water and should be promoted
before and after surgery. Conclusions The judgment on which is the most appropriate approach to oral hydration
practices must be the responsibility of the multidisciplinary perioperative
team. Nevertheless, it is reasonable to argue that, in the presence of a
patient with no relevant illness and who follows a healthy diet, it is more
appropriate to stay closer to dehydration than liberalizing water intake
both prior to surgery and in the early postoperative hours until the
resumption of normal physiological functions.
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Affiliation(s)
- Matteo Briguglio
- IRCCS Orthopedic Institute Galeazzi, Scientific Direction, Milan, Italy
| | - Thomas W Wainwright
- Bournemouth University, Orthopaedic Research Institute, Bournemouth, United Kingdom
- University Hospitals Dorset, NHS Foundation Trust, United Kingdom
| | - Tiziano Crespi
- IRCCS Orthopedic Institute Galeazzi, Intensive Care Unit, Milan, Italy
| | - Kate Southern
- Bournemouth University, Orthopaedic Research Institute, Bournemouth, United Kingdom
- Nuffield Health Bournemouth Hospital, Bournemouth, United Kingdom
| | - Laura Mangiavini
- IRCCS Orthopedic Institute Galeazzi, Regenerative and Reconstructive Unit, Milan, Italy
- University of Milan, Department of Biomedical Sciences for Health, Milan, Italy
| | - James Craig
- Bournemouth University, Orthopaedic Research Institute, Bournemouth, United Kingdom
- University Hospitals Dorset, NHS Foundation Trust, United Kingdom
| | - Rob G Middleton
- Bournemouth University, Orthopaedic Research Institute, Bournemouth, United Kingdom
- University Hospitals Dorset, NHS Foundation Trust, United Kingdom
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Macdonald J, Cunningham E, Gallagher N, Hamilton P, Cassidy R, Bryce L, Beverland D. Can patients with mild post-operative hyponatraemia following elective arthroplasty be discharged safely? A large-scale service evaluation suggests they can. Ann Clin Biochem 2021; 59:116-124. [PMID: 34663082 DOI: 10.1177/00045632211051526] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Post-operative hyponatraemia is common following arthroplasty. Clinical hyponatraemia guidelines lack detail on when treatment is necessary, and there is a paucity of literature to guide best practice. METHODS Data were collected within retrospective service evaluations over two time periods in a single high throughput joint unit. The hospital's electronic database identified 1000 patients who were admitted electively between February 2012 and June 2013 and again between November 2018 and April 2019 for primary total hip, total knee or uni-compartmental knee arthroplasty. Hyponatraemia and non-hyponatraemia groups were compared. Logistic regression analysis was used to identify independent predictors of post-operative hyponatraemia, length of stay (LOS), re-attendance or re-admission to hospital. RESULTS Between 2012-2013 and 2018-2019, 32.1% and 25.7% of patients, respectively, developed post-operative hyponatraemia (serum sodium (s[Na]) ≤135 mmol/L). Those with post-operative hyponatraemia were significantly older, weighed less, were more comorbid and had lower pre-operative sodium. Multivariate analysis showed that increased age, knee surgery and lower pre-operative s[Na] independently predicted post-operative hyponatraemia. Post-operative hyponatraemia did not independently predict LOS, re-attendance or re-admission to hospital, within 90 days, in either cohort. CONCLUSION Post-operative hyponatraemia is common and may be a marker of pre-operative vulnerability. In these cohorts, it was not independently associated with LOS, re-attendance or re-admission to hospital. We suggest that otherwise well patients with mild hyponatraemia can be safely discharged earlier than is often the case and may not require extensive investigation. Further examination and research is required to develop a pre-operative approach to predict which patients will develop significant post-operative hyponatraemia.
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Affiliation(s)
- Jonathan Macdonald
- Outcomes Unit, Musgrave Park Hospital, 1602Belfast Health and Social Care Trust, Belfast, UK
| | - Emma Cunningham
- Centre for Public Health, 1596Queen's University, Belfast, Institute of Clinical Sciences, Royal Victoria Hospital, Belfast, UK
| | - Nicola Gallagher
- Outcomes Unit, Musgrave Park Hospital, 1602Belfast Health and Social Care Trust, Belfast, UK
| | - Paul Hamilton
- Centre for Medical Education, 1596Queen's University Belfast Belfast, UK.,Department of Clinical Biochemistry, Royal Victoria Hospital, Belfast, UK
| | - Roslyn Cassidy
- Outcomes Unit, Musgrave Park Hospital, 1602Belfast Health and Social Care Trust, Belfast, UK
| | - Leeann Bryce
- Outcomes Unit, Musgrave Park Hospital, 1602Belfast Health and Social Care Trust, Belfast, UK
| | - David Beverland
- Outcomes Unit, Musgrave Park Hospital, 1602Belfast Health and Social Care Trust, Belfast, UK
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