1
|
Winckelmann LA, Gribsholt SB, Bødkergaard K, Rejnmark L, Madsen LR, Richelsen B. Risk of fractures following bariatric surgery with Roux-en-Y gastric bypass or sleeve gastrectomy: a Danish population-based cohort study. Eur J Endocrinol 2024; 191:1-8. [PMID: 38916995 DOI: 10.1093/ejendo/lvae068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 03/05/2024] [Accepted: 04/12/2024] [Indexed: 06/27/2024]
Abstract
OBJECTIVE We examined the association between Roux-en-Y gastric bypass (RYGB) or sleeve gastrectomy (SG) and fracture risk, including major osteoporotic fractures (MOF), and the use of anti-osteoporosis medication (AOM). While RYGB is associated with impaired bone health and increased fracture risk, it remains uncertain whether SG has a similar impact and whether this risk is primarily due to MOF or any fracture. DESIGN We conducted a nationwide cohort study covering patients treated with RYGB (n = 16 121, 10.2-year follow-up) or SG (n = 1509, 3.7-year follow-up), from 2006 to 2018, comparing them with an age- and sex-matched cohort (n = 407 580). METHODS We computed incidence rates and adjusted hazard ratios (HRs) with 95% CIs, using Cox regression for any fracture, MOF, and use of AOM with adjustment for comorbidities. RESULTS Compared with the general population cohort, RYGB was associated with an increased risk of any fracture (HR 1.56 [95% CI, 1.48-1.64]) and MOF (HR 1.49 [1.35-1.64]). Sleeve gastrectomy was associated with an increased risk of any fracture (HR 1.38 [1.13-1.68]), while the HR of MOF was 1.43 (0.97-2.12). The use of AOM was low but similar in all cohorts (approximately 1%). CONCLUSIONS Bariatric surgery increased the risk of any fracture and MOF to similar extend. Risks were similar for RYGB and SG. However, SG had a shorter follow-up than RYGB, and the cohort size was rather small. More research is needed for long-term SG fracture risk assessment. The use of AOM was low in all cohorts.
Collapse
Affiliation(s)
- Lotte A Winckelmann
- Steno Diabetes Center Aarhus, Aarhus University Hospital, 8200 Aarhus N, Denmark
- Department of Clinical Medicine, Aarhus University, 8200 Aarhus N, Denmark
| | - Sigrid B Gribsholt
- Steno Diabetes Center Aarhus, Aarhus University Hospital, 8200 Aarhus N, Denmark
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, 8200 Aarhus N, Denmark
| | | | - Lars Rejnmark
- Department of Clinical Medicine, Aarhus University, 8200 Aarhus N, Denmark
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, 8200 Aarhus N, Denmark
| | - Lene R Madsen
- Steno Diabetes Center Aarhus, Aarhus University Hospital, 8200 Aarhus N, Denmark
- Department of Medicine, Gødstrup Hospital, 7400 Herning, Denmark
- Danish Diabetes Academy, Odense University Hospital, 5000 Odense C, Denmark
| | - Bjørn Richelsen
- Steno Diabetes Center Aarhus, Aarhus University Hospital, 8200 Aarhus N, Denmark
- Department of Clinical Medicine, Aarhus University, 8200 Aarhus N, Denmark
| |
Collapse
|
2
|
Cailleaux PE, Ostertag A, Haguenauer DA, Ledoux S, Cohen-Solal M. Long-Term Differential Effects of Gastric Bypass and Sleeve Gastrectomy on Bone Mineral Density. J Endocr Soc 2024; 8:bvae111. [PMID: 38939832 PMCID: PMC11210305 DOI: 10.1210/jendso/bvae111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Indexed: 06/29/2024] Open
Abstract
Context The association of obesity with bone fragility fractures is complex and non-linear. Despite good efficacy on weight loss, bariatric surgery (BS) is also associated with bone loss. However, we lack information on risk factors of the long-term deleterious effects of BS on the skeleton. Objective We aimed to assess the factors associated with low bone mineral density (BMD) performed a long time after Roux-en-Y gastric bypass (RYGB) or sleeve gastrectomy (SG). Methods This cross-sectional study involved patients at a long distance from their BS that underwent dual-energy x-ray absorptiometry (DXA) with biological factors (vitamins, micronutrients, bone and inflammation biomarkers). Simple and multiple linear models (stepwise and parsimony approach) were developed. Results A total of 131 patients (91 RYGB, 40 SG) underwent DXA (51.8 ± 11.08 years, 87.8% women). At a mean of 6.8 ± 3.7 years after surgery, the mean weight loss was -28.6 ± 9.6%, and only 6 patients (5.7%) had a T-score less than or equal to -2.5. On univariate analysis, BMD was lower in the RYGB than in the SG group (P < .001) at all sites, despite similar fat and fat-free mass and weight loss. Serum parathyroid hormone and phosphate levels were higher in RYGB than SG patients. A total of 10.1% of patients showed vascular calcifications. On multivariable analysis, BMD remained different between surgery groups after adjustment for age, body mass index, ethnicity, and sex. The model-adjusted R 2 values were 0.451 for the total hip; 0.462 the femoral neck, and 0.191 the lumbar spine for the inflammation model; 0.458, 0.462, and 0.254, respectively, for the bone marker model; and 0.372, 0.396, and 0.142 for the vitamin model. Serum zinc, ferritin, and uric acid levels were the markers associated with BMD to a low extent. Conclusion BMD differed depending on the BS procedure. A few biological markers may be associated weakly with BMD well after the surgery.
Collapse
Affiliation(s)
- Pierre-Emmanuel Cailleaux
- Service de gériatrie aiguë, Hôpital Louis-Mourier, Assistance Publique—Hôpitaux de Paris, F-92700 Colombes, France
- Inserm Bioscar, Université Paris Cité, 75010 Paris, France
| | - Agnès Ostertag
- Inserm Bioscar, Université Paris Cité, 75010 Paris, France
| | - Didier Albert Haguenauer
- Service de gériatrie aiguë, Hôpital Louis-Mourier, Assistance Publique—Hôpitaux de Paris, F-92700 Colombes, France
| | - Séverine Ledoux
- Service des Explorations Fonctionnelles, Centre intégré de prise en charge de l’obésité (CINFO), Hôpital Louis-Mourier APHP.Nord, Colombes & Université Paris Cité, 92700 Colombes, France
| | | |
Collapse
|
3
|
Lachance AD, Steika R, Lutton J, Chessa F. Total Joint Arthroplasty in Patients Who Are Obese or Morbidly Obese: An Ethical Analysis. J Bone Joint Surg Am 2024; 106:659-664. [PMID: 38377222 DOI: 10.2106/jbjs.23.00617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Affiliation(s)
- Andrew D Lachance
- Department of Orthopaedic Surgery, Guthrie Clinic, Sayre, Pennsylvania
| | - Roman Steika
- Department of Orthopaedic Surgery, Guthrie Clinic, Sayre, Pennsylvania
| | - Jeffrey Lutton
- Department of Orthopaedic Surgery, Guthrie Clinic, Sayre, Pennsylvania
| | - Frank Chessa
- Maine Medical Center, Portland, Maine
- Tufts University School of Medicine, Boston, Massachusetts
| |
Collapse
|
4
|
Herrou J, Mabilleau G, Lecerf JM, Thomas T, Biver E, Paccou J. Narrative Review of Effects of Glucagon-Like Peptide-1 Receptor Agonists on Bone Health in People Living with Obesity. Calcif Tissue Int 2024; 114:86-97. [PMID: 37999750 DOI: 10.1007/s00223-023-01150-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 10/14/2023] [Indexed: 11/25/2023]
Abstract
Glucagon-like peptide-1 Receptor agonists (GLP-1Ras) such as liraglutide and semaglutide have been recently approved as medications for chronic weight management in people living with obesity (PwO); GLP-1 may enhance bone metabolism and improve bone quality. However, the effects of GLP-1Ras on skeletal health remain to be determined and that's the purpose of this narrative review. Nevertheless, bone consequences of intentional weight loss interventions in PwO are well known: (i) significant weight loss induced by caloric restriction and bariatric surgery results in accelerated bone turnover and bone loss, and (ii) unlike caloric restriction interventions, PwO experience a substantial deterioration in bone microarchitecture and strength associated with an increased risk of fracture after bariatric surgery especially malabsorptive procedures. Liraglutide seems to have a positive effect on bone material properties despite significant weight loss in several rodent models. However, most of positive effects on bone mineral density and microarchitecture were observed at concentration much higher than approved for obesity care in humans. No data have been reported in preclinical models with semaglutide. The current evidence of the effects of GLP-1Ra on bone health in PwO is limited. Indeed, studies on the use of GLP-1Ra mostly included patients with diabetes who were administered a dose used in this condition, did not have adequate bone parameters as primary endpoints, and had short follow-up periods. Further studies are needed to investigate the bone impact of GLP-1Ra, dual- and triple-receptor agonists for GLP-1, glucose-dependent insulin releasing polypeptide (GIP), and glucagon in PwO.
Collapse
Affiliation(s)
- Julia Herrou
- Service de Rhumatologie, Inserm U 1153, AP-HP Centre, Hôpital Cochin, Université de Paris, Paris, France
| | - Guillaume Mabilleau
- ONIRIS, Inserm, RMeS, UMR 1229, SFR ICAT, Univ Angers, Nantes Université, Angers, France
| | - Jean-Michel Lecerf
- Department of Nutrition and Physical Activity, Institut Pasteur de Lille, Lille, France
| | - Thierry Thomas
- Department of Rheumatology, Hôpital Nord, Centre Hospitalier Universitaire (CHU) Saint-Etienne, Inserm U1059, Lyon University, Saint-Etienne, France
| | - Emmanuel Biver
- Service of Bone Diseases, Faculty of Medicine, Geneva University Hospitals, Geneva, Switzerland
| | - Julien Paccou
- Department of Rheumatology, CHU Lille, MABlab ULR 4490, Univ. Lille, 59000, Lille, France.
| |
Collapse
|
5
|
Jadzic J, Andjelic U, Milovanovic P, Zivkovic V, Nikolic S, Djonic D, Djuric M. Improved femoral micro-architecture in adult male individuals with overweight: fracture resistance due to regional specificities. Int J Obes (Lond) 2024; 48:202-208. [PMID: 37770573 DOI: 10.1038/s41366-023-01389-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Revised: 09/16/2023] [Accepted: 09/22/2023] [Indexed: 09/30/2023]
Abstract
BACKGROUND It is still unclear whether femoral fracture risk is positively or negatively altered in individuals with overweight. Considering the lack of studies including men with overweight, this study aimed to analyze regional specificities in mechano-structural femoral properties (femoral neck and intertrochanteric region) in adult male cadavers with overweight compared to their normal-weight age-matched counterparts. METHODS Ex-vivo osteodensitometry, micro-computed tomography, and Vickers micro-indentation testing were performed on femoral samples taken from 30 adult male cadavers, divided into the group with overweight (BMI between 25 and 30 kg/m2; n = 14; age:55 ± 16 years) and control group (BMI between 18.5 and 25 kg/m2; n = 16; age:51 ± 18 years). RESULTS Better quality of trabecular and cortical microstructure in the inferomedial (higher trabecular bone volume fraction, trabecular thickness, and cortical thickness, coupled with reduced cortical pore diameter, p < 0.05) and superolateral femoral neck (higher trabecular number and tendency to lower cortical porosity, p = 0.043, p = 0.053, respectively) was noted in men with overweight compared to controls. Additionally, the intertrochanteric region of men with overweight had more numerous and denser trabeculae, coupled with a thicker and less porous cortex (p < 0.05). Still, substantial overweight-induced change in femoral osteodensitometry parameters and Vickers micro-hardness was not demonstrated in assessed femoral subregions (p > 0.05). CONCLUSIONS Despite the absence of significant changes in femoral osteodensitometry, individuals with overweight had better trabecular and cortical femoral micro-architecture implying higher femoral fracture resistance. However, the microhardness was not significantly favorable in the individuals who were overweight, indicating the necessity for further research.
Collapse
Affiliation(s)
- Jelena Jadzic
- Center of Bone Biology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Uros Andjelic
- Center of Bone Biology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Petar Milovanovic
- Center of Bone Biology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Vladimir Zivkovic
- Institute of Forensic Medicine, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Slobodan Nikolic
- Institute of Forensic Medicine, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Danijela Djonic
- Center of Bone Biology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Marija Djuric
- Center of Bone Biology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia.
| |
Collapse
|
6
|
Tencerova M, Duque G, Beekman KM, Corsi A, Geurts J, Bisschop PH, Paccou J. The Impact of Interventional Weight Loss on Bone Marrow Adipose Tissue in People Living with Obesity and Its Connection to Bone Metabolism. Nutrients 2023; 15:4601. [PMID: 37960254 PMCID: PMC10650495 DOI: 10.3390/nu15214601] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 10/25/2023] [Accepted: 10/26/2023] [Indexed: 11/15/2023] Open
Abstract
This review focuses on providing physicians with insights into the complex relationship between bone marrow adipose tissue (BMAT) and bone health, in the context of weight loss through caloric restriction or metabolic and bariatric surgery (MBS), in people living with obesity (PwO). We summarize the complex relationship between BMAT and bone health, provide an overview of noninvasive imaging techniques to quantify human BMAT, and discuss clinical studies measuring BMAT in PwO before and after weight loss. The relationship between BMAT and bone is subject to variations based on factors such as age, sex, menopausal status, skeletal sites, nutritional status, and metabolic conditions. The Bone Marrow Adiposity Society (BMAS) recommends standardizing imaging protocols to increase comparability across studies and sites, they have identified both water-fat imaging (WFI) and spectroscopy (1H-MRS) as accepted standards for in vivo quantification of BMAT. Clinical studies measuring BMAT in PwO are limited and have shown contradictory results. However, BMAT tends to be higher in patients with the highest visceral adiposity, and inverse associations between BMAT and bone mineral density (BMD) have been consistently found in PwO. Furthermore, BMAT levels tend to decrease after caloric restriction-induced weight loss. Although weight loss was associated with overall fat loss, a reduction in BMAT did not always follow the changes in fat volume in other tissues. The effects of MBS on BMAT are not consistent among the studies, which is at least partly related to the differences in the study population, skeletal site, and duration of the follow-up. Overall, gastric bypass appears to decrease BMAT, particularly in patients with diabetes and postmenopausal women, whereas sleeve gastrectomy appears to increase BMAT. More research is necessary to evaluate changes in BMAT and its connection to bone metabolism, either in PwO or in cases of weight loss through caloric restriction or MBS, to better understand the role of BMAT in this context and determine the local or systemic factors involved.
Collapse
Affiliation(s)
- Michaela Tencerova
- Molecular Physiology of Bone, Institute of Physiology of the Czech Academy of Sciences, 14220 Prague, Czech Republic;
| | - Gustavo Duque
- Department of Medicine, Research Institute of the McGill University Health Centre, Montreal, QC H4A 3J1, Canada;
| | - Kerensa M. Beekman
- Department of Radiology and Nuclear Medicine, Amsterdam UMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands;
| | - Alessandro Corsi
- Department of Molecular Medicine, Sapienza University of Rome, 00161 Rome, Italy;
| | - Jeroen Geurts
- Rheumatology, Department of Musculoskeletal Medicine, Lausanne University Hospital, 1011 Lausanne, Switzerland;
| | - Peter H. Bisschop
- Department of Endocrinology, Amsterdam UMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands;
| | - Julien Paccou
- Department of Rheumatology, MABLab ULR 4490, CHU Lille, University Lille, 59000 Lille, France
| |
Collapse
|
7
|
Maïmoun L, Aouinti S, Puech M, Lefebvre P, Deloze M, de Santa Barbara P, Cristol JP, Brabant S, Gautier T, Nedelcu M, Renard E, Picot MC, Mariano-Goulart D, Nocca D. Effect of Nutritional Deprivation after Sleeve Gastrectomy on Bone Mass, Periostin, Sclerostin and Semaphorin 4D: A Two-Year Longitudinal Study. Nutrients 2023; 15:4310. [PMID: 37892386 PMCID: PMC10610316 DOI: 10.3390/nu15204310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 10/06/2023] [Accepted: 10/08/2023] [Indexed: 10/29/2023] Open
Abstract
Bariatric surgery induces bone loss, but the exact mechanisms by which this process occurs are not fully known. The aims of this 2-year longitudinal study were to (i) investigate the changes in areal bone mineral density (aBMD) and bone turnover markers following sleeve gastrectomy (SG) and (ii) determine the parameters associated with the aBMD variations. Bone turnover markers, sclerostin, periostin and semaphorin 4D were assessed before and 1, 12 and 24 months after SG, and aBMD was determined by DXA at baseline and after 12 and 24 months in 83 patients with obesity. Bone turnover increased from 1 month, peaked at 12 months and remained elevated at 24 months. Periostin and sclerostin presented only modest increases at 1 month, whereas semaphorin 4D showed increases only at 12 and 24 months. A significant aBMD decrease was observed only at total hip regions at 12 and 24 months. This demineralisation was mainly related to body weight loss. In summary, reduced aBMD was observed after SG in the hip region (mechanical-loading bone sites) due to an increase in bone turnover in favour of bone resorption. Periostin, sclerostin and semaphorin 4D levels varied after SG, showing different time lags, but contrary to weight loss, these biological parameters did not seem to be directly implicated in the skeletal deterioration.
Collapse
Affiliation(s)
- Laurent Maïmoun
- Département de Biophysique, Université Montpellier, Service de Médecine Nucléaire, Hôpital Lapeyronie, 371, Avenue du Doyen Gaston Giraud, CHU de Montpellier, CEDEX 5, 34295 Montpellier, France;
- Physiology and Experimental Medecine of the Heart and Muscles (PhyMedExp), Université de Montpellier, INSERM, CNRS, 34295 Montpellier, France;
| | - Safa Aouinti
- Unité de Recherche Clinique et Epidémiologie, CHU de Montpellier, Université de Montpellier, 34295 Montpellier, France; (S.A.); (M.-C.P.)
| | - Marion Puech
- Service de Chirurgie Digestive A, Hôpital Saint Eloi, CHU de Montpellier, 34295 Montpellier, France; (M.P.); (M.D.); (D.N.)
| | - Patrick Lefebvre
- Department of Endocrinology and Diabetes, Lapeyronie Hospital, CHU de Montpellier, University of Montpellier, INSERM, CNRS, 34295 Montpellier, France; (P.L.); (E.R.)
| | - Mélanie Deloze
- Service de Chirurgie Digestive A, Hôpital Saint Eloi, CHU de Montpellier, 34295 Montpellier, France; (M.P.); (M.D.); (D.N.)
| | - Pascal de Santa Barbara
- Physiology and Experimental Medecine of the Heart and Muscles (PhyMedExp), Université de Montpellier, INSERM, CNRS, 34295 Montpellier, France;
| | - Jean-Paul Cristol
- Laboratoire de Biochimie, Hôpital Lapeyronie, CHU de Montpellier, 34295 Montpellier, France;
| | - Séverine Brabant
- Laboratoire des Explorations Fonctionnelles, Hôpital Necker Enfants Malades, APHP, 75015 Paris, France;
| | | | | | - Eric Renard
- Department of Endocrinology and Diabetes, Lapeyronie Hospital, CHU de Montpellier, University of Montpellier, INSERM, CNRS, 34295 Montpellier, France; (P.L.); (E.R.)
| | - Marie-Christine Picot
- Unité de Recherche Clinique et Epidémiologie, CHU de Montpellier, Université de Montpellier, 34295 Montpellier, France; (S.A.); (M.-C.P.)
| | - Denis Mariano-Goulart
- Département de Biophysique, Université Montpellier, Service de Médecine Nucléaire, Hôpital Lapeyronie, 371, Avenue du Doyen Gaston Giraud, CHU de Montpellier, CEDEX 5, 34295 Montpellier, France;
- Physiology and Experimental Medecine of the Heart and Muscles (PhyMedExp), Université de Montpellier, INSERM, CNRS, 34295 Montpellier, France;
| | - David Nocca
- Service de Chirurgie Digestive A, Hôpital Saint Eloi, CHU de Montpellier, 34295 Montpellier, France; (M.P.); (M.D.); (D.N.)
| |
Collapse
|
8
|
Carroll JD, Young JR, Mori BV, Gheewala R, Lakra A, DiCaprio MR. Total Hip and Knee Arthroplasty Surgery in the Morbidly Obese Patient: A Critical Analysis Review. JBJS Rev 2023; 11:01874474-202304000-00007. [PMID: 37098128 DOI: 10.2106/jbjs.rvw.22.00177] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/27/2023]
Abstract
» Obesity, defined as body mass index (BMI) ≥30, is a serious public health concern associated with an increased incidence of stroke, diabetes, mental illness, and cardiovascular disease resulting in numerous preventable deaths yearly. » From 1999 through 2018, the age-adjusted prevalence of morbid obesity (BMI ≥40) in US adults aged 20 years and older has risen steadily from 4.7% to 9.2%, with other estimates showing that most of the patients undergoing hip and knee replacement by 2029 will be obese (BMI ≥30) or morbidly obese (BMI ≥40). » In patients undergoing total joint arthroplasty (TJA), morbid obesity (BMI ≥40) is associated with an increased risk of perioperative complications, including prosthetic joint infection and mechanical failure necessitating aseptic revision. » The current literature on the role that bariatric weight loss surgery before TJA has on improving surgical outcomes is split and referral to a bariatric surgeon should be a shared-decision between patient and surgeon on a case-by-case basis. » Despite the increased risk profile of TJA in the morbidly obese cohort, these patients consistently show improvement in pain and physical function postoperatively that should be considered when deciding for or against surgery.
Collapse
Affiliation(s)
- Jeremy D Carroll
- Division of Orthopaedic Surgery, Albany Medical Center, Albany, New York
| | | | | | | | | | | |
Collapse
|
9
|
Araújo MM, Mendes MM, Costa LM, Lima RM, Lanham-New SA, Baiocchi de Carvalho KM, Botelho PB. Determinant factors of bone health after long-term of Roux-en-Y gastric bypass surgery: A cross-sectional study. Nutrition 2023; 108:111937. [PMID: 36640632 DOI: 10.1016/j.nut.2022.111937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 12/01/2022] [Accepted: 12/08/2022] [Indexed: 12/15/2022]
Abstract
OBJECTIVES The aim of this study was to evaluate bone health and the potential influencing factors of bone metabolism disorders in adults ≥5 y after Roux-en-Y gastric bypass (RYGB) surgery. METHODS In this cross-sectional study, patients who were ≥5 y post-RYGB were invited. Bone health considered as bone mineral content (BMC) and bone mineral density (BMD) in this study was assessed by dual x-ray absorptiometry. We also assessed 25-hydroxy-vitamin D concentrations, individual ultraviolet B radiation levels, serum ionized calcium, alkaline phosphatase, parathyroid, anthropometric, and body composition. RESULTS The study evaluated 104 adults (90% women; 49.6 ± 9.1 y old; postoperative period 8.7 ± 2.2 y). Lumbar and femoral BMC and BMD were positively correlated to body mass index (BMI), appendicular lean mass (ALM), and negatively to %excess of weight loss (EWL). Femoral BMD was negatively correlated to age, and both femoral BMD and BMC were positively correlated to weekly exposed body part score. Sex, age, BMI, ALM, and weekly exposed body part score explained 35% and 54% of the total variance of femoral BMD and BMC, respectively. CONCLUSIONS The present findings suggested that older age, lower BMI, higher %EWL, lower ALM, and lower weekly body part exposure score are important determinants in lowering BMD and BMC parameters in long-term post-bariatric surgery individuals, rather than serum 25-hydroxy-vitamin D and parathyroid.
Collapse
Affiliation(s)
| | | | - Lorena Morais Costa
- Graduate Program in Human Nutrition, University of Brasília, Brasília, Brazil
| | - Ricardo Moreno Lima
- Graduate Program in Human Nutrition, University of Brasília, Brasília, Brazil; Graduate Program in Physical Education, University of Brasília, Brasília, Brazil
| | - Susan A Lanham-New
- Department of Nutritional Sciences, School of Biosciences and Medicine, Faculty of Health and Medical Sciences, University of Surrey, Guildford, UK
| | | | | |
Collapse
|
10
|
Mitchell DM, Singhal V, Animashaun A, Bose A, Carmine B, Stanford FC, Inge TH, Kelsey MM, Lee H, Bouxsein ML, Yu EW, Bredella MA, Misra M. Skeletal Effects of Sleeve Gastrectomy in Adolescents and Young Adults: A 2-Year Longitudinal Study. J Clin Endocrinol Metab 2023; 108:847-857. [PMID: 36314507 PMCID: PMC10211497 DOI: 10.1210/clinem/dgac634] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 10/07/2022] [Indexed: 11/16/2022]
Abstract
CONTEXT Vertical sleeve gastrectomy (VSG) is an increasingly common tool to achieve weight loss and improve metabolic health in adolescents and young adults with obesity, although it may adversely affect bone health. OBJECTIVE This work aimed to evaluate the effect of VSG on bone health in youth. METHODS An observational 2-year study was conducted at a tertiary care center of 66 patients aged 13 to 24 years with moderate-to-severe obesity meeting criteria for VSG. The patients underwent VSG (n = 30) or nonsurgical (n = 36) management per the decision of patient and clinical team. Main outcome measures included dual-energy x-ray absorptiometry (DXA) and high-resolution peripheral quantitative computed tomography (HRpQCT) measures of bone mineral density (BMD), geometry, and microarchitecture. RESULTS VSG patients achieved 25.3 ± 2.0% weight loss at 2 years (P < .001) while control subjects gained 4.0 ± 2.0% (P = .026). Total hip BMD declined 8.5 ± 1.0% following VSG compared with 0.1 ± 1.0% gain in controls (P < .001), with similar results at the femoral neck (P < .001). Total volumetric BMD (vBMD) decreased both at the distal radius and tibia following VSG (P < .001) driven primarily by trabecular vBMD loss (P < .001). Two-year changes in cortical vBMD did not differ between groups, though cortical porosity decreased following VSG both at the radius and tibia (P = .048 and P < .001). Cortical thickness increased in controls but not in VSG (P = .022 and P = .002 for between-group comparisons at the radius and tibia, respectively). Following VSG, estimated failure load decreased at the radius and did not demonstrate the physiologic increases at the tibia observed in controls. CONCLUSION VSG leads to progressive changes in bone health over 2 years, and may lead to increased skeletal fragility in adolescents and young adults.
Collapse
Affiliation(s)
- Deborah M Mitchell
- Division of Pediatric Endocrinology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114, USA
- Endocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114, USA
| | - Vibha Singhal
- Division of Pediatric Endocrinology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114, USA
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114, USA
- Weight Center, Massachusetts General Hospital, Boston, Massachusetts 02114, USA
| | - Abisayo Animashaun
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114, USA
| | - Amita Bose
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114, USA
| | - Brian Carmine
- Department of Surgery, Boston University Medical Center, Boston, Massachusetts 02118, USA
| | - Fatima C Stanford
- Division of Pediatric Endocrinology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114, USA
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114, USA
- Weight Center, Massachusetts General Hospital, Boston, Massachusetts 02114, USA
| | - Thomas H Inge
- Department of Pediatric Surgery, Children's Hospital Colorado, Aurora, Colorado 80045, USA
| | - Megan M Kelsey
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, Colorado 80045, USA
| | - Hang Lee
- Biostatistics Center, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114, USA
| | - Mary L Bouxsein
- Endocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114, USA
| | - Elaine W Yu
- Endocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114, USA
| | - Miriam A Bredella
- Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114, USA
| | - Madhusmita Misra
- Division of Pediatric Endocrinology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114, USA
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114, USA
| |
Collapse
|
11
|
Zahedi B, Daley EJ, Brooks DJ, Bruce M, Townsend RL, Berthoud HR, Bouxsein ML, Yu EW. The PYY/Y2R-deficient male mouse is not protected from bone loss due to Roux-en-Y gastric bypass. Bone 2023; 167:116608. [PMID: 36368466 PMCID: PMC10064867 DOI: 10.1016/j.bone.2022.116608] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 10/27/2022] [Accepted: 11/05/2022] [Indexed: 11/09/2022]
Abstract
BACKGROUND Peptide YY (PYY) is an anorexigenic gut hormone that also has anti-osteogenic effects, inhibiting osteoblastic activity and inducing catabolic effects. It has been postulated that increases in PYY after Roux-en-Y gastric bypass (RYGB) contribute to declines in bone mineral density (BMD) and increases in bone turnover. The aim of this study is to determine the role of the PYY Y2-receptor in mediating bone loss post-RYGB in mice. METHODS We compared adult male wildtype (WT) and PYY Y2 receptor-deficient (KO) C57BL/6 mice that received RYGB (WT: n = 8; KO: n = 9), with sham-operated mice (Sham; WT: n = 9; KO: n = 10) and mice that were food-restricted to match the weights of the RYGB-treated group (Weight-Matched, WM; WT: n = 7; KO: n = 5). RYGB or sham surgery was performed at 15-16 weeks of age, and mice sacrificed 21 weeks later. We characterized bone microarchitecture with micro-computed tomography (μCT) at the distal femur (trabecular) and femoral midshaft (cortical). Differences in body weight, bone microarchitecture and biochemical bone markers (parathyroid hormone, PTH; C-telopeptide, CTX; and type 1 procollagen, P1NP) were compared using 2-factor ANOVA with Tukey's adjustments for multiple comparisons. RESULTS Body weights were similar in the WT-RYGB, WT-WM, KO-RYGB, and KO-WM: 41-44 g; these groups weighed significantly less than the Sham surgery groups: 55-57 g. Trabecular BMD was 31-43 % lower in RYGB mice than either Sham or WM in WT and KO groups. This deficiency in trabecular bone was accompanied by a lower trabecular number (19 %-23 %), thickness (22 %-30 %) and increased trabecular spacing (25 %-34 %) in WT and KO groups (p < 0.001 for all comparisons vs. RYGB). RYGB led to lower cortical thickness, cortical tissue mineral density, and cortical bone area fraction as compared to Sham and WM in WT and KO groups (p ≤ 0.004 for all). There were no interactions between genotype and bone microarchitecture, with patterns of response to RYGB similar in both WT and KO groups. CTX and P1NP were significantly higher in RYGB mice than WM in WT and KO groups. PTH did not differ among groups. CONCLUSIONS RYGB induced greater trabecular and cortical deficits and high bone turnover than observed in weight-matched mice, with a similar pattern in the WT and Y2RKO mice. Thus, skeletal effects of RYGB are independent of weight loss, and furthermore, PYY signaling through Y2R is not a key mediator of bone loss post-RYGB.
Collapse
Affiliation(s)
- Bita Zahedi
- Endocrine Unit, Massachusetts General Hospital, Boston, MA 02114, United States of America.
| | - Eileen J Daley
- Endocrine Unit, Massachusetts General Hospital, Boston, MA 02114, United States of America
| | - Daniel J Brooks
- Endocrine Unit, Massachusetts General Hospital, Boston, MA 02114, United States of America
| | - Michael Bruce
- Endocrine Unit, Massachusetts General Hospital, Boston, MA 02114, United States of America
| | - R Leigh Townsend
- Neurobiology of Nutrition & Metabolism Department, Pennington Biomedical Research Center, Louisiana State University System, Baton Rouge, LA 70808, United States of America
| | - Hans-Rudolf Berthoud
- Neurobiology of Nutrition & Metabolism Department, Pennington Biomedical Research Center, Louisiana State University System, Baton Rouge, LA 70808, United States of America
| | - Mary L Bouxsein
- Endocrine Unit, Massachusetts General Hospital, Boston, MA 02114, United States of America
| | - Elaine W Yu
- Endocrine Unit, Massachusetts General Hospital, Boston, MA 02114, United States of America
| |
Collapse
|
12
|
Holanda N, Crispim N, Carlos I, Moura T, Nóbrega E, Bandeira F. Musculoskeletal effects of obesity and bariatric surgery – a narrative review. ARCHIVES OF ENDOCRINOLOGY AND METABOLISM 2022; 66:621-632. [PMID: 36382751 PMCID: PMC10118826 DOI: 10.20945/2359-3997000000551] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Obesity affects several areas of the human body, leading to increased morbidity and mortality and the likelihood of other diseases, such as type 2 diabetes mellitus, cardiovascular diseases and musculoskeletal disorders. These conditions predispose to bone fractures and sarcopenic obesity, defined by the presence of an obesity-associated decrease in muscle mass and strength. Both bone fragility and sarcopenic obesity disease are consequences of several factors, such as a low degree of chronic inflammation, insulin resistance, hormonal changes, nutritional deficiencies, ectopic fat deposits and sedentary lifestyle. The diagnosis of obesity-related musculoskeletal disorders is limited by the lack of sarcopenia criteria and lower accuracy of bone mineral density measurement by dual-energy X-ray absorptiometry in overweight people. Reducing body weight provides undeniable benefits to this population, however treating cases of severe obesity with bariatric surgery can cause even greater damage to bone and muscle health, especially in the long term. The mechanisms involved in this process are not yet fully understood, but factors related to nutrient malabsorption and mechanical discharge as well as changes in gut hormones, adipokines and bone marrow adiposity should be taken into account. Depending on the surgical technique performed, greater musculoskeletal damage may occur, especially in cases of malabsorptive surgeries such as Roux-en-Y gastric bypass, when compared to restrictive techniques such as sleeve gastrectomy. This difference is probably due to greater weight loss, nutrient malabsorption and important hormonal changes that occur as a consequence of the diversion of intestinal transit and loss of greater absorptive surface. Thus, people undergoing bariatric procedures, especially malabsorptive ones, should have their musculoskeletal health supervised to allow early diagnosis and appropriate therapeutic interventions to prevent osteoporotic fractures and preserve the functionality of the skeletal muscles.
Collapse
|
13
|
Gam S, Gram B, Juhl CB, Hermann AP, Hansen SG. Zoledronic Acid for prevention of bone and muscle loss after BAriatric Surgery (ZABAS)-a study protocol for a randomized controlled trial. Trials 2022; 23:861. [PMID: 36209245 PMCID: PMC9548152 DOI: 10.1186/s13063-022-06766-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 09/16/2022] [Indexed: 11/18/2022] Open
Abstract
Background Bariatric surgery has adverse effects on the muscular-skeletal system with loss of bone mass and muscle mass and an increase in the risk of fracture. Zoledronic acid is widely used in osteoporosis and prevents bone loss and fracture. Bisphosphonates may also have positive effects on skeletal muscle. The aim of this study is to investigate the effects of zoledronic acid for the prevention of bone and muscle loss after bariatric surgery. Methods/design This is a randomized double-blind placebo-controlled study. Sixty women and men with obesity aged 35 years or older will complete baseline assessments before randomization to either zoledronic acid (5 mg in 100 ml isotonic saline) or placebo (100 ml isotonic saline only) 3 weeks before surgery with Roux-en-Y-gastric bypass (RYGB) or sleeve gastrectomy (SG). Follow-up assessments are performed 12 and 24 months after surgery. The primary outcome is changes in lumbar spine volumetric bone mineral density (vBMD) assessed by quantitative computed tomography (QCT). Secondary bone outcomes are changes in proximal femur vBMD assessed by QCT. Changes in cortical and trabecular bone microarchitecture and estimated bone strength will be assessed by high-resolution peripheral quantitative computed tomography (HR-pQCT). Cortical material bone strength at the mid-tibia diaphysis will be assessed using microindentation and fasting blood samples will be obtained to assess biochemical markers of bone turnover and calcium metabolism. Secondary muscle outcomes include whole body lean mass assessed using dual-energy X-ray absorptiometry. Dynamometers will be used to assess handgrip, shoulder, ankle, and knee muscle strength. Short Physical Performance Battery, 7.6-m walking tests, 2-min walking test, and a stair climb test will be assessed as biomarkers of physical function. Self-reported physical activity level is assessed using International Physical Activity Questionnaire (IPAQ). Discussion Results from this study will be instrumental for the evidence-based care of patients undergoing bariatric surgery. Trial registration ClinicalTrials.gov NCT04742010. Registered on 5 February 2021. Supplementary Information The online version contains supplementary material available at 10.1186/s13063-022-06766-z.
Collapse
Affiliation(s)
- Søren Gam
- Department of Medicine, University Hospital of Southern Denmark, Odense, Denmark. .,Steno Diabetes Center, Odense, Denmark.
| | - Bibi Gram
- The Research Unit of Health Sciences, University Hospital of Southern Denmark, Odense, Denmark.,Department of Regional Health Research, University of Southern Denmark, Odense, Denmark
| | - Claus Bogh Juhl
- Department of Medicine, University Hospital of Southern Denmark, Odense, Denmark.,Steno Diabetes Center, Odense, Denmark
| | | | - Stinus Gadegaard Hansen
- Department of Medicine, University Hospital of Southern Denmark, Odense, Denmark.,Department of Regional Health Research, University of Southern Denmark, Odense, Denmark
| |
Collapse
|
14
|
Abstract
Weight loss surgery, also known as metabolic and bariatric surgery (MBS), is an effective weight loss treatment and is associated with reduced mortality and improvements in obesity-related health conditions and quality of life. Postsurgical anatomical and physiologic changes include decreased absorption of micronutrients and alterations in gut-brain hormonal regulation that affect many aspects of health. Patients require ongoing monitoring of their physical and mental health for lasting success. Internists, particularly primary care clinicians, are in an ideal position to monitor for nonserious complications in the short and long term, adjust management of chronic diseases accordingly, and monitor for mental health changes. This article reviews key issues that internists should be aware of for supporting patients' health in the short and long term after MBS.
Collapse
Affiliation(s)
- Carolyn Bramante
- Division of General Internal Medicine, University of Minnesota, Minneapolis, Minnesota
| | - Eric Wise
- Division of Advanced Gastrointestinal/Bariatric Surgery, University of Minnesota, Minneapolis, Minnesota
| | - Zoobia Chaudhry
- Department of General Internal Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland
| |
Collapse
|
15
|
Paccou J, Caiazzo R, Lespessailles E, Cortet B. Bariatric Surgery and Osteoporosis. Calcif Tissue Int 2022; 110:576-591. [PMID: 33403429 DOI: 10.1007/s00223-020-00798-w] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 12/14/2020] [Indexed: 02/06/2023]
Abstract
It has been increasingly acknowledged that bariatric surgery adversely affects skeletal health. After bariatric surgery, the extent of high-turnover bone loss is much greater than what would be expected in the absence of a severe skeletal insult. Patients also experience a significant deterioration in bone microarchitecture and strength. There is now a growing body of evidence that suggests an association between bariatric surgery and higher fracture risk. Although the mechanisms underlying the high-turnover bone loss and increase in fracture risk after bariatric surgery are not fully understood, many factors seem to be involved. The usual suspects are nutritional factors and mechanical unloading, and the roles of gut hormones, adipokines, and bone marrow adiposity should be investigated further. Roux-en-Y gastric bypass (RYGB) was once the most commonly performed bariatric procedure worldwide, but sleeve gastrectomy (SG) has now become the predominant bariatric procedure. Accumulating evidence suggests that RYGB is associated with a greater reduction in BMD, a greater increase in markers of bone turnover, and a higher risk of fracture than SG. These findings should be taken into consideration in determining the most appropriate bariatric procedure for patients, especially those at higher fracture risk. Before and after all bariatric procedures, sufficient calcium, vitamin D and protein intake, and adequate physical activity, are needed to counteract negative impacts on bone. There are no studies to date that have evaluated the effect of osteoporosis treatment on high-turnover bone loss after bariatric surgery. However, in patients with a diagnosis of osteoporosis, anti-resorptive agents may be considered.
Collapse
Affiliation(s)
- Julien Paccou
- Department of Rheumatology, MABLaB ULR 4490, CHU Lille, Univ. Lille, 59000, Lille, France.
- Department of Rheumatology, MABLaB ULR 4490, CHU Lille, 2, Avenue Oscar Lambret, 59037, Lille, France.
| | - Robert Caiazzo
- Inserm, Endocrine and Metabolic Surgery, UMR 1190, CHU Lille, Univ. Lille, 59000, Lille, France
| | - Eric Lespessailles
- Department of Rheumatology, CHR Orléans, I3MTO EA 4708, Univ. Orléans, 45067, Orléans, France
| | - Bernard Cortet
- Department of Rheumatology, MABLaB ULR 4490, CHU Lille, Univ. Lille, 59000, Lille, France
| |
Collapse
|
16
|
Mendonça F, Soares R, Carvalho D, Freitas P. The Impact of Bariatric Surgery on Bone Health: State of the Art and New Recognized Links. Horm Metab Res 2022; 54:131-144. [PMID: 35276738 DOI: 10.1055/a-1767-5581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Bariatric surgery (BS) is the most effective therapy for severe obesity, which improves several comorbidities (such as diabetes, hypertension, dyslipidemia, among others) and results in marked weight loss. Despite these consensual beneficial effects, sleeve gastrectomy and Roux-en-Y gastric bypass (the two main bariatric techniques) have also been associated with changes in bone metabolism and progressive bone loss. The objective of this literature review is to examine the impact of bariatric surgery on bone and its main metabolic links, and to analyze the latest findings regarding the risk of fracture among patients submitted to bariatric surgery.
Collapse
Affiliation(s)
- Fernando Mendonça
- Serviço de Endocrinologia, Diabetes e Metabolismo, Centro Hospitalar e Universitário de S. João, Porto, Portugal
- Faculdade de Medicina da Universidade do Porto, Porto, Portugal
| | - Raquel Soares
- Faculdade de Medicina da Universidade do Porto, Porto, Portugal
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- Departamento de Biomedicina, Faculdade de Medicina da Universidade do Porto, Porto, Portugal
| | - Davide Carvalho
- Serviço de Endocrinologia, Diabetes e Metabolismo, Centro Hospitalar e Universitário de S. João, Porto, Portugal
- Faculdade de Medicina da Universidade do Porto, Porto, Portugal
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
| | - Paula Freitas
- Serviço de Endocrinologia, Diabetes e Metabolismo, Centro Hospitalar e Universitário de S. João, Porto, Portugal
- Faculdade de Medicina da Universidade do Porto, Porto, Portugal
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
| |
Collapse
|
17
|
Salman MA, Aradaib M, Salman A, Elewa A, Tourky M, Shaaban HED. Effects of Gastric Bypass and Sleeve Gastrectomy on Bone Mineral Density and Bone Turnover Markers: A Systematic Review and Meta-Analysis. World J Surg 2022; 46:865-875. [PMID: 35006326 DOI: 10.1007/s00268-021-06429-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/10/2021] [Indexed: 12/16/2022]
Abstract
BACKGROUND There is a growing interest in the post-operative bone-related effects of bariatric surgery. However, little is known about the comparative effects of the most commonly performed bariatric procedures, namely Roux-en-Y gastric bypass (RYGB) and sleeve gastrectomy (SG). OBJECTIVES To systematically assess the differences in areal bone mineral density (aBMD) and biochemical and hormonal markers of bone metabolism among patients undergoing RYGB and SG. METHODS We conducted a systematic review and meta-analysis of studies aBMD at different sites, as well as bone-specific alkaline phosphatase (BALP), 25-OH-vitamin D, calcium and parathyroid hormone (PTH) after RYGB and SG. RESULTS Fourteen studies were included (717 patients, 50.63% in the RYGB arm). Based on data collected at 1 year, 2 years and > 2 years, there were no significant differences in aBMD measurements at the total hip, lumbar spine, femoral neck, and the whole body with no statistical heterogeneity among different comparisons. Patients in the RYGB group showed significantly higher concentrations of BALP at 1 year (SMD = 0.52, 95%CI, 0.23-0.81, p = 0.0004) and PTH at > 2 years of follow-up (SMD = 0.68, 95%CI, 0.31-1.05, p = 0.0003) compared to the SG group. CONCLUSION There were no significant differences in aBMD measurements at the hip, lumbar spine, femoral neck, and the total body following RYGB and SG procedures. However, BALP and PTH concentrations were significantly higher after RYGB surgeries compared to SG. Attention should be paid to patients undergoing RYGB to prevent the expected skeletal fragility over time.
Collapse
Affiliation(s)
- Mohamed AbdAlla Salman
- General Surgery Department, Kasralainy School of Medicine, Cairo University, Cairo, Egypt.
| | - Mohammed Aradaib
- General Surgery Department, Sunderland Royal Hospital, Sunderland, Tyne and Wear, UK
| | - Ahmed Salman
- Internal Medicine Department, Kasr Alainy Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Ahmed Elewa
- General Surgery Department Department, National Hepatology and Tropical Medicine Research Institute, Cairo, Egypt
| | - Mohamed Tourky
- General Surgery Department, Great Western Hospital, NHS Foundation Trust, Swindon, UK
| | - Hossam El-Din Shaaban
- Gastroenterology and Hepatology Department, National Hepatology and Tropical Medicine Research Institute, Cairo, Egypt
| |
Collapse
|
18
|
Mele C, Caputo M, Ferrero A, Daffara T, Cavigiolo B, Spadaccini D, Nardone A, Prodam F, Aimaretti G, Marzullo P. Bone Response to Weight Loss Following Bariatric Surgery. Front Endocrinol (Lausanne) 2022; 13:921353. [PMID: 35873004 PMCID: PMC9301317 DOI: 10.3389/fendo.2022.921353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 05/23/2022] [Indexed: 11/28/2022] Open
Abstract
Obesity is a global health challenge that warrants effective treatments to avoid its multiple comorbidities. Bariatric surgery, a cornerstone treatment to control bodyweight excess and relieve the health-related burdens of obesity, can promote accelerated bone loss and affect skeletal strength, particularly after malabsorptive and mixed surgical procedures, and probably after restrictive surgeries. The increase in bone resorption markers occurs early and persist for up to 12 months or longer after bariatric surgery, while bone formation markers increase but to a lesser extent, suggesting a potential uncoupling process between resorption and formation. The skeletal response to bariatric surgery, as investigated by dual-energy X-ray absorptiometry (DXA), has shown significant loss in bone mineral density (BMD) at the hip with less consistent results for the lumbar spine. Supporting DXA studies, analyses by high-resolution peripheral quantitative computed tomography (HR-pQCT) showed lower cortical density and thickness, higher cortical porosity, and lower trabecular density and number for up to 5 years after bariatric surgery. These alterations translate into an increased risk of fall injury, which contributes to increase the fracture risk in patients who have been subjected to bariatric surgery procedures. As bone deterioration continues for years following bariatric surgery, the fracture risk does not seem to be dependent on acute weight loss but, rather, is a chronic condition with an increasing impact over time. Among the post-bariatric surgery mechanisms that have been claimed to act globally on bone health, there is evidence that micro- and macro-nutrient malabsorptive factors, mechanical unloading and changes in molecules partaking in the crosstalk between adipose tissue, bone and muscle may play a determining role. Given these circumstances, it is conceivable that bone health should be adequately investigated in candidates to bariatric surgery through bone-specific work-up and dedicated postsurgical follow-up. Specific protocols of nutrients supplementation, motor activity, structured rehabilitative programs and, when needed, targeted therapeutic strategies should be deemed as an integral part of post-bariatric surgery clinical support.
Collapse
Affiliation(s)
- Chiara Mele
- Department of Clinical-Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy
- *Correspondence: Chiara Mele,
| | - Marina Caputo
- Department of Health Sciences, University of Piemonte Orientale, Novara, Italy
- Division of Endocrinology, University Hospital “Maggiore della Carità”, Novara, Italy
| | - Alice Ferrero
- Division of Endocrinology, University Hospital “Maggiore della Carità”, Novara, Italy
| | - Tommaso Daffara
- Division of Endocrinology, University Hospital “Maggiore della Carità”, Novara, Italy
| | - Beatrice Cavigiolo
- Division of Endocrinology, University Hospital “Maggiore della Carità”, Novara, Italy
| | - Daniele Spadaccini
- Department of Health Sciences, University of Piemonte Orientale, Novara, Italy
| | - Antonio Nardone
- Department of Clinical-Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy
- Istituti Clinici Scientifici Maugeri IRCCS, Neurorehabilitation and Spinal Unit of Pavia Institute, Pavia, and Neurorehabilitation of Montescano Institute, Montescano, PV, Italy
| | - Flavia Prodam
- Department of Health Sciences, University of Piemonte Orientale, Novara, Italy
- Division of Endocrinology, University Hospital “Maggiore della Carità”, Novara, Italy
| | - Gianluca Aimaretti
- Division of Endocrinology, University Hospital “Maggiore della Carità”, Novara, Italy
- Department of Translational Medicine, University of Piemonte Orientale, Novara, Italy
| | - Paolo Marzullo
- Department of Translational Medicine, University of Piemonte Orientale, Novara, Italy
- Istituto Auxologico Italiano, IRCCS, Laboratory of Metabolic Research, S. Giuseppe Hospital, Piancavallo, Italy
| |
Collapse
|
19
|
Paccou J, Tsourdi E, Meier C, Palermo A, Pepe J, Body JJ, Zillikens MC. Bariatric surgery and skeletal health: A narrative review and position statement for management by the European Calcified Tissue Society (ECTS). Bone 2022; 154:116236. [PMID: 34688942 DOI: 10.1016/j.bone.2021.116236] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 10/02/2021] [Accepted: 10/16/2021] [Indexed: 12/14/2022]
Abstract
CONTEXT Numerous studies have demonstrated detrimental skeletal consequences following bariatric surgery. METHODS A working group of the European Calcified Tissue Society (ECTS) performed an updated review of existing literature on changes of bone turnover markers (BTMs), bone mineral density (BMD), and fracture risk following bariatric surgery and provided advice on management based on expert opinion. LITERATURE REVIEW Based on observational studies, bariatric surgery is associated with a 21-44% higher risk of all fractures. Fracture risk is time-dependent and increases approximately 3 years after bariatric surgery. The bariatric procedures that have a malabsorptive component (including Roux-en-Y Gastric bypass (RYGB) and biliopancreatic diversion (BPD)) have clearly been associated with the highest risk of fracture. The extent of high-turnover bone loss suggests a severe skeletal insult. This is associated with diminished bone strength and compromised microarchitecture. RYGB was the most performed bariatric procedure worldwide until very recently, when sleeve gastrectomy (SG) became more prominent. There is growing evidence that RYGB is associated with greater reduction in BMD, greater increase in BTMs, and higher risk of fractures compared with SG but RCTs on optimal management are still lacking. EXPERT OPINION In all patients, it is mandatory to treat vitamin D deficiency, to achieve adequate daily calcium and protein intake and to promote physical activity before and following bariatric surgery. In post-menopausal women and men older than 50 years, osteoporosis treatment would be reasonable in the presence of any of the following criteria: i) history of recent fragility fracture after 40 years of age, ii) BMD T-score ≤ -2 at hip or spine, iii) FRAX score with femoral neck BMD exceeding 20% for the 10-year major osteoporotic fracture probability or exceeding 3% for hip fracture. Zoledronate as first choice should be preferred due to intolerance of oral formulations and malabsorption. Zoledronate should be used with caution due to hypocemia risk. It is recommended to ensure adequate 25-OH vitamin D level and calcium supplementation before administering zoledronate. CONCLUSIONS The bariatric procedures that have a malabsorptive component have been associated with the highest turnover bone loss and risk of fracture. There is a knowledge gap on osteoporosis treatment in patients undergoing bariatric surgery. More research is necessary to direct and support guidelines.
Collapse
Affiliation(s)
- Julien Paccou
- Univ. Lille, CHU Lille, MABLab ULR 4490, Department of Rheumatology, 59000 Lille, France.
| | - Elena Tsourdi
- Department of Medicine III, Technische Universität Dresden Medical Center, Dresden, Germany; Center for Healthy Aging, Technische Universität Dresden Medical Center, Dresden, Germany
| | - Christian Meier
- Division of Endocrinology, Diabetes and Metabolism, University Hospital and University of Basel, Switzerland
| | - Andrea Palermo
- Unit of Endocrinology and Diabetes, University Campus Bio-Medico, Rome, Italy
| | - Jessica Pepe
- Department of Clinical, Internal, Anesthesiology and Cardiovascular Sciences, "Sapienza" University of Rome, Italy
| | - Jean-Jacques Body
- Department of Medicine, CHU Brugmann, Université Libre de Bruxelles, Brussels, Belgium
| | - M Carola Zillikens
- Bone Center Erasmus MC, Department of Internal Medicine, Erasmus University Medical Center, Rotterdam, the Netherlands
| |
Collapse
|
20
|
Rinonapoli G, Pace V, Ruggiero C, Ceccarini P, Bisaccia M, Meccariello L, Caraffa A. Obesity and Bone: A Complex Relationship. Int J Mol Sci 2021; 22:ijms222413662. [PMID: 34948466 PMCID: PMC8706946 DOI: 10.3390/ijms222413662] [Citation(s) in RCA: 75] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 12/13/2021] [Accepted: 12/13/2021] [Indexed: 12/29/2022] Open
Abstract
There is a large literature on the relationship between obesity and bone. What we can conclude from this review is that the increase in body weight causes an increase in BMD, both for a mechanical effect and for the greater amount of estrogens present in the adipose tissue. Nevertheless, despite an apparent strengthening of the bone witnessed by the increased BMD, the risk of fracture is higher. The greater risk of fracture in the obese subject is due to various factors, which are carefully analyzed by the Authors. These factors can be divided into metabolic factors and increased risk of falls. Fractures have an atypical distribution in the obese, with a lower incidence of typical osteoporotic fractures, such as those of hip, spine and wrist, and an increase in fractures of the ankle, upper leg, and humerus. In children, the distribution is different, but it is not the same in obese and normal-weight children. Specifically, the fractures of the lower limb are much more frequent in obese children. Sarcopenic obesity plays an important role. The authors also review the available literature regarding the effects of high-fat diet, weight loss and bariatric surgery.
Collapse
Affiliation(s)
- Giuseppe Rinonapoli
- Orthopaedic and Traumatology Unit, Department of Medicine, University of Perugia, 06156 Perugia, Italy; (V.P.); (P.C.); (A.C.)
- Correspondence:
| | - Valerio Pace
- Orthopaedic and Traumatology Unit, Department of Medicine, University of Perugia, 06156 Perugia, Italy; (V.P.); (P.C.); (A.C.)
| | - Carmelinda Ruggiero
- Orthogeriatric Service, Geriatric Unit, Institute of Gerontology and Geriatrics, Department of Medicine, University of Perugia, 06156 Perugia, Italy;
| | - Paolo Ceccarini
- Orthopaedic and Traumatology Unit, Department of Medicine, University of Perugia, 06156 Perugia, Italy; (V.P.); (P.C.); (A.C.)
| | - Michele Bisaccia
- Department of Orthopaedics and Traumatology, AORN San Pio “Gaetano Rummo Hospital”, Via R.Delcogliano, 82100 Benevento, Italy; (M.B.); (L.M.)
| | - Luigi Meccariello
- Department of Orthopaedics and Traumatology, AORN San Pio “Gaetano Rummo Hospital”, Via R.Delcogliano, 82100 Benevento, Italy; (M.B.); (L.M.)
| | - Auro Caraffa
- Orthopaedic and Traumatology Unit, Department of Medicine, University of Perugia, 06156 Perugia, Italy; (V.P.); (P.C.); (A.C.)
| |
Collapse
|
21
|
Diniz-Sousa F, Veras L, Boppre G, Devezas V, Santos-Sousa H, Preto J, Machado L, Vilas-Boas JP, Oliveira J, Fonseca H. The effect of bariatric surgery on gravitational loading and its impact on bone mass. Bone 2021; 153:116153. [PMID: 34416407 DOI: 10.1016/j.bone.2021.116153] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 07/23/2021] [Accepted: 08/10/2021] [Indexed: 01/18/2023]
Abstract
INTRODUCTION Mechanical unloading associated with weight loss might be one of the main causes for bariatric surgery (BS) induced bone loss. However, no study has tested this hypothesis through objectively measured accelerometry-derived gravitational loading. We aimed to assess how gravitational loading changes following BS and how this correlates with bone mass losses. METHODS Twenty-one patients submitted to gastric bypass were assessed before, 1, 6 and 12 months after BS for areal bone mineral density (BMD), calciotropic hormones, sclerostin, body composition and daily physical activity. Gravitational loading was determined as the sum of ground reaction forces assessed by accelerometer which considered the interaction between weight and daily ambulation. RESULTS Mechanical stimuli promoted through the significant increase in steps number counterbalanced the gravitational loading decreases derived from the significant weight loss after BS. Gravitational loading volume decreased between pre-BS and 1 month post-BS (-2215 kN·d-1; p = .023), but remained stable between 6 and 12 months post-BS, despite decreases on hip (-7.0%; p < .001), femoral neck (-8.8%; p < .001) and lumbar spine (-5.2%; p < .001) BMD. Serum sclerostin increased from pre-BS to 1 month post-BS (+0.118 ng·mL-1; p = .021), returning to pre-BS levels 6 months after surgery. Neither vitamin D nor parathyroid hormone were affected by BS. Weight variation was a predictor of BMD decreases at total hip (R2 = 0.06; p = .026) and femoral neck (R2 = 0.12; p = .022), whereas daily gravitational loading volume was not. Fat and lean mass changes were also predictors of BMD decrease at total hip (R2 = 0.05; p = .031) and femoral neck (R2 = 0.14; p = .010), respectively. CONCLUSION Our findings suggest that gravitational loading only decreased during the first month after surgery remaining stable thereafter, and these changes do not seem to explain BS-induced bone loss. The association between weight and bone loss seems to result from other physiological aspects, fat and lean mass loss, rather than from gravitational loading decrease.
Collapse
Affiliation(s)
- Florêncio Diniz-Sousa
- Research Centre in Physical Activity, Health and Leisure (CIAFEL), Faculty of Sport, University of Porto, Porto, Portugal; Laboratory for Integrative and Translational Research in Population Health (ITR), Porto, Portugal.
| | - Lucas Veras
- Research Centre in Physical Activity, Health and Leisure (CIAFEL), Faculty of Sport, University of Porto, Porto, Portugal; Laboratory for Integrative and Translational Research in Population Health (ITR), Porto, Portugal
| | - Giorjines Boppre
- Research Centre in Physical Activity, Health and Leisure (CIAFEL), Faculty of Sport, University of Porto, Porto, Portugal; Laboratory for Integrative and Translational Research in Population Health (ITR), Porto, Portugal
| | - Vítor Devezas
- General Surgery Department, São João Medical Center, Porto, Portugal
| | - Hugo Santos-Sousa
- General Surgery Department, São João Medical Center, Porto, Portugal
| | - John Preto
- General Surgery Department, São João Medical Center, Porto, Portugal
| | - Leandro Machado
- Centre of Research, Education, Innovation and Intervention in Sport (CIFI2D), Faculty of Sport, University of Porto, Porto, Portugal; Biomechanics Laboratory (LABIOMEP-UP), University of Porto, Porto, Portugal
| | - João Paulo Vilas-Boas
- Centre of Research, Education, Innovation and Intervention in Sport (CIFI2D), Faculty of Sport, University of Porto, Porto, Portugal; Biomechanics Laboratory (LABIOMEP-UP), University of Porto, Porto, Portugal
| | - José Oliveira
- Research Centre in Physical Activity, Health and Leisure (CIAFEL), Faculty of Sport, University of Porto, Porto, Portugal; Laboratory for Integrative and Translational Research in Population Health (ITR), Porto, Portugal
| | - Hélder Fonseca
- Research Centre in Physical Activity, Health and Leisure (CIAFEL), Faculty of Sport, University of Porto, Porto, Portugal; Laboratory for Integrative and Translational Research in Population Health (ITR), Porto, Portugal
| |
Collapse
|
22
|
Beavers KM, Beavers DP, Fernandez AZ, Greene KA, Swafford AA, Weaver AA, Wherry SJ, Ard JD. Risedronate use to attenuate bone loss following sleeve gastrectomy: Results from a pilot randomized controlled trial. Clin Obes 2021; 11:e12487. [PMID: 34569167 PMCID: PMC8563448 DOI: 10.1111/cob.12487] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 09/09/2021] [Accepted: 09/12/2021] [Indexed: 12/12/2022]
Abstract
The purpose of this study was to explore the efficacy of 150 mg once monthly oral risedronate use in the prevention of sleeve gastrectomy (SG) associated bone loss. Twenty-four SG patients (56 ± 7 years, 83% female, 21% black) were randomized to risedronate or placebo for 6 months, with an optional 12-month assessment. Outcome measures included 6 (n = 21) and 12 (n = 14) month change in dual energy x-ray absorptiometry-acquired regional areal bone mineral density (aBMD). Six-month treatment effect estimates [mean (95% CI)] revealed significant between group aBMD differences at the femoral neck [risedronate: +0.013 g/cm2 (-0.021, 0.046) vs. placebo: -0.041 g/cm2 (-0.067, -0.015)] and lumbar spine [risedronate: +0.028 g/cm2 (-0.006, 0.063) vs. placebo: -0.029 g/cm2 (-0.054, -0.004)]; both p ≤ 0.02. When followed postoperatively to 12 months, differential aBMD treatment effects were observed at the total hip [risedronate: -0.035 g/cm2 (-0.061, -0.009) vs. placebo: -0.072 g/cm2 (-0.091, -0.052)] and lumbar spine [risedronate: +0.012 g/cm2 (-0.038, 0.063) vs. placebo: -0.052 g/cm2 (-0.087, -0.017)]; both p < 0.05. Preliminary treatment effect estimates signal 6 months of risedronate use may be efficacious in reducing aBMD loss at the axial skeleton post-SG, with benefit largely maintained throughout the 1-year postoperative period. Confirmatory data from an adequately powered trial are needed.
Collapse
Affiliation(s)
- Kristen M. Beavers
- Department of Health and Exercise Science, Wake Forest University, Winston-Salem, North Carolina, USA
| | - Daniel P. Beavers
- Department of Biostatistics and Data Science, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
| | - Adolfo Z. Fernandez
- Weight Management Center, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
| | - Katelyn A. Greene
- Department of Biomedical Engineering, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
| | - Ashlyn A. Swafford
- Department of Health and Exercise Science, Wake Forest University, Winston-Salem, North Carolina, USA
| | - Ashley A. Weaver
- Department of Biomedical Engineering, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
| | - Sarah J. Wherry
- Division of Geriatric Medicine, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Jamy D. Ard
- Weight Management Center, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
| |
Collapse
|
23
|
Ohs N, Collins CJ, Tourolle DC, Atkins PR, Schroeder BJ, Blauth M, Christen P, Müller R. Automated segmentation of fractured distal radii by 3D geodesic active contouring of in vivo HR-pQCT images. Bone 2021; 147:115930. [PMID: 33753277 DOI: 10.1016/j.bone.2021.115930] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 02/28/2021] [Accepted: 03/15/2021] [Indexed: 12/13/2022]
Abstract
Radius fractures are among the most common fracture types; however, there is limited consensus on the standard of care. A better understanding of the fracture healing process could help to shape future treatment protocols and thus improve functional outcomes of patients. High-resolution peripheral quantitative computed tomography (HR-pQCT) allows monitoring and evaluation of the radius on the micro-structural level, which is crucial to our understanding of fracture healing. However, current radius fracture studies using HR-pQCT are limited by the lack of automated contouring routines, hence only including small number of patients due to the prohibitively time-consuming task of manually contouring HR-pQCT images. In the present study, a new method to automatically contour images of distal radius fractures based on 3D morphological geodesic active contours (3D-GAC) is presented. Contours of 60 HR-pQCT images of fractured and conservatively treated radii spanning the healing process up to one year post-fracture are compared to the current gold standard, hand-drawn 2D contours, to assess the accuracy of the algorithm. Furthermore, robustness was established by applying the algorithm to HR-pQCT images of intact radii of 73 patients and comparing the resulting morphometric indices to the gold standard patient evaluation including a threshold- and dilation-based contouring approach. Reproducibility was evaluated using repeat scans of intact radii of 19 patients. The new 3D-GAC approach offers contours within inter-operator variability for images of fractured distal radii (mean Dice score of 0.992 ± 0.005 versus median operator Dice score of 0.992 ± 0.006). The generated contours for images of intact radii yielded morphometric indices within the in vivo reproducibility limits compared to the current gold standard. Additionally, the 3D-GAC approach shows an improved robustness against failure (n = 5) when dealing with cortical interruptions, fracture fragments, etc. compared with the automatic, default manufacturer pipeline (n = 40). Using the 3D-GAC approach assures consistent results, while reducing the need for time-consuming hand-contouring.
Collapse
Affiliation(s)
- Nicholas Ohs
- Institute for Biomechanics, ETH Zurich, Zurich, Switzerland
| | | | | | - Penny R Atkins
- Institute for Biomechanics, ETH Zurich, Zurich, Switzerland
| | | | - Michael Blauth
- Department for Trauma Surgery, Innsbruck University Hospital, Innsbruck, Austria
| | - Patrik Christen
- Institute for Biomechanics, ETH Zurich, Zurich, Switzerland; Institute for Information Systems, FHNW University of Applied Sciences and Arts Northwestern Switzerland, Olten, Switzerland
| | - Ralph Müller
- Institute for Biomechanics, ETH Zurich, Zurich, Switzerland.
| |
Collapse
|
24
|
Cadart O, Degrandi O, Barnetche T, Mehsen-Cetre N, Monsaingeon-Henry M, Pupier E, Bosc L, Collet D, Gronnier C, Tremollieres F, Gatta-Cherifi B. Long-Term Effects of Roux-en-Y Gastric Bypass and Sleeve Gastrectomy on Bone Mineral Density: a 4-Year Longitudinal Study. Obes Surg 2021; 30:3317-3325. [PMID: 32246412 DOI: 10.1007/s11695-020-04568-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
INTRODUCTION Bone mineral density (BMD) declines in the initial years after bariatric surgery, but long-term skeletal effects are unclear and comparisons between sleeve gastrectomy (SG) and Roux-en-Y gastric bypass (RYGB) are rare. DESIGN AND METHODS An observational longitudinal study of obese patients undergoing SG or RYGB was performed. Whole-body (WB) BMD, along with BMD of the total hip (TH), femoral neck (FN), and lumbar spine (LS), was measured by dual-energy X-ray absorptiometry (DXA) before surgery and yearly thereafter for 4 years. Calciotropic hormones were also measured. RESULTS Forty-seven patients undergoing RYGB surgery and 28 patients undergoing SG were included. Four years after RYGB, BMD declined by 2.8 ± 5.8% in LS, 8.6 ± 5% in FN, 10.9 ± 6.3% in TH, and 4.2 ± 6.2% in WB, relative to baseline. For SG, BMD declined by 8.1 ± 5.5% in FN, 7.7 ± 6% in TH, 2.0 ± 7.2% in LS, and 2.5 ± 6.4% in WB after 4 years, relative to baseline. Vitamin D levels increased with supplementation in both groups. Whereas parathyroid hormone levels increased slightly in the RYGB group, they decreased modestly in the SG group (P < 0.05 in both groups). CONCLUSIONS Bone loss after 4 years was comparable between the two procedures, although RYGB was associated with a slightly greater decrease at the TH than SG. Bone health should therefore be monitored after both RYGB and SG.
Collapse
Affiliation(s)
- O Cadart
- Endocrinology, Diabetology & Nutrition Department, University Hospital of Bordeaux, Pessac, France.,University of Bordeaux, College Santé, 33076, Bordeaux, France
| | - O Degrandi
- Digestive Surgery Department, University Hospital of Bordeaux, Pessac, France
| | - T Barnetche
- Rheumatology Department, University Hospital of Bordeaux, Bordeaux, France
| | - N Mehsen-Cetre
- Rheumatology Department, University Hospital of Bordeaux, Bordeaux, France
| | - M Monsaingeon-Henry
- Endocrinology, Diabetology & Nutrition Department, University Hospital of Bordeaux, Pessac, France
| | - E Pupier
- Endocrinology, Diabetology & Nutrition Department, University Hospital of Bordeaux, Pessac, France
| | - L Bosc
- Endocrinology, Diabetology & Nutrition Department, University Hospital of Bordeaux, Pessac, France
| | - D Collet
- Digestive Surgery Department, University Hospital of Bordeaux, Pessac, France.,University of Bordeaux, College Santé, 33076, Bordeaux, France
| | - C Gronnier
- Digestive Surgery Department, University Hospital of Bordeaux, Pessac, France.,University of Bordeaux, College Santé, 33076, Bordeaux, France
| | - F Tremollieres
- Menopause center, Hôpital Paule de Viguier, University Hospital of Toulouse, Toulouse, France
| | - Blandine Gatta-Cherifi
- Endocrinology, Diabetology & Nutrition Department, University Hospital of Bordeaux, Pessac, France. .,INSERM U1215 Neurocentre Magendie, University of Bordeaux, Bordeaux, France. .,University of Bordeaux, College Santé, 33076, Bordeaux, France.
| |
Collapse
|
25
|
Krez A, Agarwal S, Bucovsky M, McMahon DJ, Hu Y, Bessler M, Schrope B, Carrelli A, Clare S, Guo XDE, Silverberg SJ, Stein EM. Long-term Bone Loss and Deterioration of Microarchitecture After Gastric Bypass in African American and Latina Women. J Clin Endocrinol Metab 2021; 106:e1868-e1879. [PMID: 33098299 PMCID: PMC8502471 DOI: 10.1210/clinem/dgaa654] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Accepted: 09/14/2020] [Indexed: 01/06/2023]
Abstract
CONTEXT The prevalence of obesity is burgeoning among African American and Latina women; however, few studies investigating the skeletal effects of bariatric surgery have focused on these groups. OBJECTIVE To investigate long-term skeletal changes following Roux-en-Y gastric bypass (RYGB) in African American and Latina women. DESIGN Four-year prospective cohort study. PATIENTS African American and Latina women presenting for RYGB (n = 17, mean age 44, body mass index 44 kg/m2) were followed annually for 4 years postoperatively. MAIN OUTCOME MEASURES Dual-energy x-ray absorptiometry (DXA) measured areal bone mineral density (aBMD) at the spine, hip, and forearm, and body composition. High-resolution peripheral quantitative computed tomography measured volumetric bone mineral density (vBMD) and microarchitecture. Individual trabecula segmentation-based morphological analysis assessed trabecular morphology and connectivity. RESULTS Baseline DXA Z-Scores were normal. Weight decreased ~30% at Year 1, then stabilized. Parathyroid hormone (PTH) increased by 50% and 25-hydroxyvitamin D was stable. By Year 4, aBMD had declined at all sites, most substantially in the hip. There was significant, progressive loss of cortical and trabecular vBMD, deterioration of microarchitecture, and increased cortical porosity at both the radius and tibia over 4 years. There was loss of trabecular plates, loss of axially aligned trabeculae, and decreased trabecular connectivity. Whole bone stiffness and failure load declined. Risk factors for bone loss included greater weight loss, rise in PTH, and older age. CONCLUSIONS African American and Latina women had substantial and progressive bone loss, deterioration of microarchitecture, and trabecular morphology following RYGB. Further studies are critical to understand the long-term skeletal consequences of bariatric surgery in this population.
Collapse
Affiliation(s)
- Alexandra Krez
- Endocrinology and Metabolic Bone Disease Service, Hospital for Special Surgery, New York, New York
| | - Sanchita Agarwal
- Department of Medicine, Columbia University College of Physicians and Surgeons, New York, New York
| | - Mariana Bucovsky
- Department of Medicine, Columbia University College of Physicians and Surgeons, New York, New York
| | - Donald J McMahon
- Endocrinology and Metabolic Bone Disease Service, Hospital for Special Surgery, New York, New York
- Department of Medicine, Columbia University College of Physicians and Surgeons, New York, New York
| | - Yizhong Hu
- Bone Bioengineering Laboratory, Department of Biomedical Engineering, Columbia University, New York, New York
| | - Marc Bessler
- Department of Surgery, Columbia University College of Physicians and Surgeons, New York, NY
| | - Beth Schrope
- Department of Surgery, Columbia University College of Physicians and Surgeons, New York, NY
| | - Angela Carrelli
- Department of Medicine, Columbia University College of Physicians and Surgeons, New York, New York
| | - Shannon Clare
- Endocrinology and Metabolic Bone Disease Service, Hospital for Special Surgery, New York, New York
| | - Xiang-Dong Edward Guo
- Bone Bioengineering Laboratory, Department of Biomedical Engineering, Columbia University, New York, New York
| | - Shonni J Silverberg
- Department of Medicine, Columbia University College of Physicians and Surgeons, New York, New York
| | - Emily M Stein
- Endocrinology and Metabolic Bone Disease Service, Hospital for Special Surgery, New York, New York
- Correspondence and Reprint Requests: Emily M. Stein, MD, MS, Director of Research, Metabolic Bone Service, Hospital for Special Surgery, Associate Professor of Medicine, Weill Cornell Medical College, 535 East 70th Street, New York, NY 10021. E-mail:
| |
Collapse
|
26
|
Diniz-Sousa F, Veras L, Boppre G, Sa-Couto P, Devezas V, Santos-Sousa H, Preto J, Vilas-Boas JP, Machado L, Oliveira J, Fonseca H. The Effect of an Exercise Intervention Program on Bone Health After Bariatric Surgery: A Randomized Controlled Trial. J Bone Miner Res 2021; 36:489-499. [PMID: 33295063 DOI: 10.1002/jbmr.4213] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 10/12/2020] [Accepted: 11/04/2020] [Indexed: 12/12/2022]
Abstract
Exercise has been suggested as a therapeutic approach to attenuate bone loss induced by bariatric surgery (BS), but its effectiveness remains unclear. Our aim was to determine if an exercise-training program could induce benefits on bone mass after BS. Eighty-four patients, submitted to gastric bypass or sleeve gastrectomy, were randomized to either exercise (EG) or control group (CG). One month post-BS, EG underwent a 11-month supervised multicomponent exercise program, while CG received only standard medical care. Patients were assessed before BS and at 1, 6, and 12 months post-BS for body composition, areal bone mineral density (BMD), bone turnover markers, calciotropic hormones, sclerostin, bone material strength index, muscle strength, and daily physical activity. A primary analysis was conducted according to intention-to-treat principles and the primary outcome was the between-group difference on lumbar spine BMD at 12 months post-BS. A secondary analysis was also performed to analyze if the exercise effect depended on training attendance. Twelve months post-BS, primary analysis results revealed that EG had a higher BMD at lumbar spine (+0.024 g∙cm-2 [95% confidence interval (CI) 0.004, 0.044]; p = .015) compared with CG. Among total hip, femoral neck, and 1/3 radius secondary outcomes, only 1/3 radius BMD improved in EG compared with CG (+0.013 g∙cm-2 [95% CI 0.003, 0.023]; p = .020). No significant exercise effects were observed on bone biochemical markers or bone material strength index. EG also had a higher lean mass (+1.5 kg [95% CI 0.1, 2.9]; p = .037) and higher number of high impacts (+51.4 [95% CI 6.6, 96.1]; p = .026) compared with CG. In addition, secondary analysis results suggest that exercise-induced benefits may be obtained on femoral neck BMD but only on those participants with ≥50% exercise attendance compared with CG (+5.3% [95% CI 2.0, 8.6]; p = .006). Our findings suggest that an exercise program is an effective strategy to ameliorate bone health in post-BS patients. © 2020 American Society for Bone and Mineral Research (ASBMR).
Collapse
Affiliation(s)
- Florêncio Diniz-Sousa
- Research Centre in Physical Activity, Health, and Leisure (CIAFEL), Faculty of Sport, University of Porto, Porto, Portugal
| | - Lucas Veras
- Research Centre in Physical Activity, Health, and Leisure (CIAFEL), Faculty of Sport, University of Porto, Porto, Portugal
| | - Giorjines Boppre
- Research Centre in Physical Activity, Health, and Leisure (CIAFEL), Faculty of Sport, University of Porto, Porto, Portugal
| | - Pedro Sa-Couto
- Center for Research and Development in Mathematics and Applications (CIDMA), Department of Mathematics, Aveiro University, Aveiro, Portugal
| | - Vítor Devezas
- General Surgery Department, São João Medical Center, Porto, Portugal
| | - Hugo Santos-Sousa
- General Surgery Department, São João Medical Center, Porto, Portugal
| | - John Preto
- General Surgery Department, São João Medical Center, Porto, Portugal
| | - João Paulo Vilas-Boas
- Center of Research, Education, Innovation, and Intervention in Sport (CIFI2D), Faculty of Sport, University of Porto, Porto, Portugal.,Biomechanics Laboratory (LABIOMEP-UP), University of Porto, Porto, Portugal
| | - Leandro Machado
- Center of Research, Education, Innovation, and Intervention in Sport (CIFI2D), Faculty of Sport, University of Porto, Porto, Portugal.,Biomechanics Laboratory (LABIOMEP-UP), University of Porto, Porto, Portugal
| | - José Oliveira
- Research Centre in Physical Activity, Health, and Leisure (CIAFEL), Faculty of Sport, University of Porto, Porto, Portugal
| | - Hélder Fonseca
- Research Centre in Physical Activity, Health, and Leisure (CIAFEL), Faculty of Sport, University of Porto, Porto, Portugal
| |
Collapse
|
27
|
Abstract
PURPOSE The prevalence of childhood obesity has increased over past decades with a concomitant increase in metabolic and bariatric surgery (MBS). While MBS in adults is associated with bone loss, only a few studies have examined the effect of MBS on the growing skeleton in adolescents. METHODS This mini-review summarizes available data on the effects of the most commonly performed MBS (sleeve gastrectomy and gastric bypass) on bone in adolescents. A literature review was performed using PubMed for English-language articles. RESULTS Dual-energy x-ray absorptiometry (DXA) measures of areal bone mineral density (aBMD) and BMD Z scores decreased following all MBS. Volumetric BMD (vBMD) by quantitative computed tomography (QCT) decreased at the lumbar spine while cortical vBMD of the distal radius and tibia increased over a year following sleeve gastrectomy (total vBMD did not change). Reductions in narrow neck and intertrochanteric cross-sectional area and cortical thickness were observed over this duration, and hip strength estimates were deleteriously impacted. Marrow adipose tissue (MAT) of the lumbar spine increased while MAT of the peripheral skeleton decreased a year following sleeve gastrectomy. The amount of weight loss and reductions in lean and fat mass correlated with bone loss at all sites, and with changes in bone microarchitecture at peripheral sites. CONCLUSION MBS in adolescents is associated with aBMD reductions, and increases in MAT of the axial skeleton, while sleeve gastrectomy is associated with an increase in cortical vBMD and decrease in MAT of the peripheral skeleton. No reductions have been reported in peripheral strength estimates.
Collapse
Affiliation(s)
- Madhusmita Misra
- Division of Pediatric Endocrinology, Mass General Hospital for Children and Harvard Medical School, Boston, Massachusetts
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Miriam A Bredella
- Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| |
Collapse
|
28
|
Mori C, Sheehan D, Graor CH, Petrinec A. A scoping review of the phenomenon of osteoporosis in post bariatric surgical patients. Int J Orthop Trauma Nurs 2020; 40:100835. [PMID: 33272902 DOI: 10.1016/j.ijotn.2020.100835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 11/09/2020] [Accepted: 11/15/2020] [Indexed: 10/22/2022]
Abstract
BACKGROUND Risk factors, preventive treatment, and increased prevalence of fragility fractures in post-bariatric surgical patients have been researched, however, little is known about how patients' perspectives of osteoporosis risk determine their commitment to bone health. PURPOSE The purpose of this review was to provide an overview and appraisal of the research regarding osteoporosis in post bariatric surgical patients, as well as to identify gaps in the literature in this area. METHODS Data bases searched included OVID Medline, CINAHL, and EMBASE which included ahead of print articles that had not yet been indexed. Relevant key words were used independently and in combination: "osteoporosis," "morbid obesity," and "bariatric surgery." RESULTS A total of 24 quantitative studies and 15 qualitative studies were retrieved for this review; none of the qualitative studies examined both osteoporosis and bariatric surgery. CONCLUSION The current trend in bariatric surgical patients regarding osteoporosis is to examine the degree of bone loss based on significant influences including extent of weight loss, years since surgery, type of procedure performed, and subject selection. Patient perceptions about osteoporosis risk after bariatric surgery were rarely addressed.
Collapse
Affiliation(s)
- Candace Mori
- Nursing and Nursing Education, 210 Skyveiw Circle, Dalton, Ohio, USA.
| | - Denice Sheehan
- Kent State University College of Nursing, 10358 Hanford Lane, Twinsburg, OH, 44087, USA.
| | | | - Amy Petrinec
- Kent State University College of Nursing, 2760 Hawkesbury Boulevard, Hudson, OH, 44236, USA.
| |
Collapse
|
29
|
Beavers KM, Greene KA, Yu EW. MANAGEMENT OF ENDOCRINE DISEASE: Bone complications of bariatric surgery: updates on sleeve gastrectomy, fractures, and interventions. Eur J Endocrinol 2020; 183:R119-R132. [PMID: 32869608 PMCID: PMC8254876 DOI: 10.1530/eje-20-0548] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 07/29/2020] [Indexed: 12/11/2022]
Abstract
Despite well recognized improvements in obesity-related comorbidities, increasing evidence implicates bariatric surgery in the onset of adverse skeletal health outcomes. The purpose of this review is to provide a focused update in three critical areas: (i) emergent data on sleeve gastrectomy and bone loss, (ii) evidence linking bariatric surgery to incident fracture, and (iii) intervention strategies designed to mitigate surgical bone loss. Better understanding of these issues will inform our treatment of skeletal health for patients planning bariatric surgery.
Collapse
Affiliation(s)
- Kristen M. Beavers
- Department of Health and Exercise Science, Wake Forest University, Winston-Salem, NC, USA
| | - Katelyn A. Greene
- Department of Biomedical Engineering, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Elaine W. Yu
- Endocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| |
Collapse
|
30
|
Lindeman KG, Rushin CC, Cheney MC, Bouxsein ML, Hutter MM, Yu EW. Bone Density and Trabecular Morphology at Least 10 Years After Gastric Bypass and Gastric Banding. J Bone Miner Res 2020; 35:2132-2142. [PMID: 32663365 DOI: 10.1002/jbmr.4112] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 05/11/2020] [Accepted: 06/07/2020] [Indexed: 12/20/2022]
Abstract
Roux-en-Y gastric bypass (RYGB) instigates high-turnover bone loss in the initial 5 years after surgery, whereas skeletal changes after adjustable gastric banding (AGB) are less pronounced. Long-term skeletal data are scarce, and the mechanisms of bone loss remain unclear. We sought to examine bone density and microarchitecture in RYGB and AGB patients a decade after surgery and to determine whether prior published reports of bone loss represent an appropriate adaptation to new postsurgical weight. In this cross-sectional study, 25 RYGB and 25 AGB subjects who had bariatric surgery ≥10 years ago were matched 1:1 with nonsurgical controls for age, sex, and current body mass index (BMI). We obtained bone mineral density (BMD) by dual-energy X-ray absorptiometry (DXA), volumetric BMD and microarchitecture by high-resolution peripheral quantitative computed tomography (HR-pQCT), trabecular morphology by individual trabecular segmentation, and metabolic bone laboratory results. As compared with BMI-matched controls, RYGB subjects had significantly lower hip BMD, and lower total volumetric BMD at the distal radius and tibia. Substantial deficits in cortical and trabecular microarchitecture were observed in the RYGB group compared to controls, with reduced trabecular plate bone volume fraction and estimated failure load at both the radius and tibia, respectively. Bone turnover markers CTX and P1NP were 99% and 77% higher in the RYGB group than controls, respectively, with no differences in serum calcium, 25-hydroxyvitamin D, or parathyroid hormone. In contrast, the AGB group did not differ from their BMI-matched controls in any measured bone density, microarchitecture, or laboratory parameter. Thus, RYGB, but not AGB, is associated with lower than expected hip and peripheral BMD for the new weight setpoint, as well as deleterious changes in bone microarchitecture. These findings suggest that pathophysiologic processes other than mechanical unloading or secondary hyperparathyroidism contribute to bone loss after RYGB, and have important clinical implications for the long-term care of RYGB patients. © 2020 American Society for Bone and Mineral Research.
Collapse
Affiliation(s)
| | - Claire C Rushin
- Endocrine Unit, Massachusetts General Hospital, Boston, MA, USA
| | | | - Mary L Bouxsein
- Endocrine Unit, Massachusetts General Hospital, Boston, MA, USA.,Harvard Medical School, Boston, MA, USA.,Department of Orthopedic Surgery, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Matthew M Hutter
- Harvard Medical School, Boston, MA, USA.,Department of Surgery, Weight Center, Massachusetts General Hospital, Boston, MA, USA
| | - Elaine W Yu
- Endocrine Unit, Massachusetts General Hospital, Boston, MA, USA.,Harvard Medical School, Boston, MA, USA
| |
Collapse
|
31
|
Roux-en-Y gastric bypass and gastric sleeve surgery result in long term bone loss. Int J Obes (Lond) 2020; 45:235-246. [PMID: 32848203 DOI: 10.1038/s41366-020-00660-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Revised: 07/14/2020] [Accepted: 08/15/2020] [Indexed: 01/01/2023]
Abstract
OBJECTIVES Little is known about the long-term skeletal impact of bariatric procedures, particularly the increasingly commonly performed gastric sleeve surgery (GS). We examined bone density (BMD) change following three types of bariatric surgery Roux-en-Y gastric bypass (RYGB), GS and laparoscopic adjustable gastric banding (LAGB), compared with diet, over 36 months. METHODS Non-randomized, prospective study of participants with severe obesity (n = 52), undergoing weight-loss interventions: RYGB (n = 7), GS (n = 21), LAGB (n = 11) and diet (n = 13). Measurements of calciotropic indices, gut hormones (fasting and post prandial) peptide YY (PYY), glucagon-like peptide 1 (GLP1) and adiponectin together with dual-X-ray absorptiometry and quantitative computed tomography scans were performed thorough the study. RESULTS All groups lost weight during the first 12 months. Despite weight stability from 12 to 36 months and supplementation of calcium and vitamin D, there was progressive bone loss at the total hip (TH) over 36 months in RYGB -14% (95% CI: -12, -17) and GS -9% (95% CI: -7, -10). In RYGB forearm BMD also declined over 36 months -9% (95% CI: -6, -12) and LS BMD declined over the first 12 months -7% (95% CI: -3, -12). RYGB and GS groups experienced significantly greater bone loss until 36 months than LAGB and diet groups, which experienced no significant BMD loss. These bone losses remained significant after adjustment for weight loss and age. RYGB and GS procedures resulted in elevated postprandial PYY, adiponectin and bone turnover markers up to 36 months without such changes among LAGB and diet participants. CONCLUSIONS RYGB and GS but not LAGB resulted in ongoing TH bone loss for three postoperative years. For RYGB, bone loss was also observed at LS and non-weight-bearing forearms. These BMD changes were independent of weight and age differences. We, therefore, recommend close monitoring of bone health following RYGB and GS surgeries.
Collapse
|
32
|
Impact of sleeve gastrectomy on hip structural analysis in adolescents and young adults with obesity. Surg Obes Relat Dis 2020; 16:2022-2030. [PMID: 32861645 DOI: 10.1016/j.soard.2020.07.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Revised: 07/12/2020] [Accepted: 07/15/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND Sleeve gastrectomy (SG), the most commonly performed metabolic and bariatric surgery, is associated with reductions in areal bone mineral density at multiple sites, and changes in bone structure at the distal radius and tibia without reductions in strength estimates at these peripheral sites. Data are lacking regarding effects on hip strength estimates. OBJECTIVE To evaluate effects of SG on measures of hip structural analysis in adolescents and young adults over 12 months using dual-energy x-ray absorptiometry. SETTINGS Translational and Clinical Research Center. METHODS We enrolled 48 youth 14- to 22-years old with moderate-to-severe obesity; 24 underwent SG and 24 controls were followed without surgery (18 females, 6 males in each group). Hip structure was assessed using dual-energy x-ray absorptiometry at baseline and 12 months. Analyses are adjusted for age, sex, race, and the baseline bone measure. RESULTS The SG group lost 25.9% weight versus .3% in controls. Compared with controls, SG had reductions in narrow neck, intertrochanteric and femoral shaft bone mineral density Z-scores (P ≤ .012). Furthermore, SG had greater reductions in narrow neck and intertrochanteric region (but not femoral shaft) cross-sectional area, cortical thickness, cross-sectional moment of inertia and section modulus, and increases in buckling ratio (P ≤ .039). Differences were attenuated after adjusting for 12-month body mass index change. At 12 months, differences were minimal after adjusting for age, sex, race, and weight. CONCLUSIONS Over 12 months, SG had negative effects at the narrow neck and intertrochanteric regions of the hip, but not the femoral shaft. Reduced body mass index may compensate for these deleterious effects on bone.
Collapse
|
33
|
Yu EW, Kim SC, Sturgeon DJ, Lindeman KG, Weissman JS. Fracture Risk After Roux-en-Y Gastric Bypass vs Adjustable Gastric Banding Among Medicare Beneficiaries. JAMA Surg 2020; 154:746-753. [PMID: 31090893 DOI: 10.1001/jamasurg.2019.1157] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Importance Roux-en-Y gastric bypass (RYGB) is associated with significant bone loss and may increase fracture risk, whereas substantial bone loss and increased fracture risk have not been reported after adjustable gastric banding (AGB). Previous studies have had little representation of patients aged 65 years or older, and it is currently unknown how age modifies fracture risk. Objective To compare fracture risk after RYGB and AGB procedures in a large, nationally representative cohort enriched for older adults. Design, Setting, and Participants This population-based retrospective cohort analysis used Medicare claims data from January 1, 2006, to December 31, 2014, from 42 345 severely obese adults, of whom 29 624 received RYGB and 12 721 received AGB. Data analysis was performed from April 2017 to November 2018. Main Outcomes and Measures The primary outcome was incident nonvertebral (ie, wrist, humerus, pelvis, and hip) fractures after RYGB and AGB surgery defined using a combination of International Classification of Diseases, Ninth Edition and Current Procedural Terminology 4 codes. Results Of 42 345 participants, 33 254 (78.5%) were women. With a mean (SD) age of 51 (12) years, recipients of RYGB were younger than AGB recipients (55 [12] years). Both groups had similar comorbidities, medication use, and health care utilization in the 365 days before surgery. Over a mean (SD) follow-up of 3.5 (2.1) years, 658 nonvertebral fractures were documented. The fracture incidence rate was 6.6 (95% CI, 6.0-7.2) after RYGB and 4.6 (95% CI, 3.9-5.3) after AGB, which translated to a hazard ratio (HR) of 1.73 (95% CI, 1.45-2.08) after multivariable adjustment. Site-specific analyses demonstrated an increased fracture risk at the hip (HR, 2.81; 95% CI, 1.82-4.49), wrist (HR, 1.70; 95% CI, 1.33-2.14), and pelvis (HR, 1.48; 95% CI, 1.08-2.07) among RYGB recipients. No significant interactions of fracture risk with age, sex, diabetes status, or race were found. In particular, adults 65 years and older showed similar patterns of fracture risk to younger adults. Sensitivity analyses using propensity score matching showed similar results (nonvertebral fracture: HR 1.75; 95% CI, 1.22-2.52). Conclusions and Relevance This study of a large, US population-based cohort including a substantial population of older adults found a 73% increased risk of nonvertebral fracture after RYGB compared with AGB, including increased risk of hip, wrist, and pelvis fractures. Fracture risk was consistently increased among RYGB patients vs AGB across different subgroups, and to a similar degree among older and younger adults. Increased fracture risk appears to be an important unintended consequence of RYGB.
Collapse
Affiliation(s)
- Elaine W Yu
- Endocrine Unit, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Seoyoung C Kim
- Division of Pharmacoepidemiology and Pharmacoeconomics; Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts.,Division of Rheumatology, Immunology and Allergy; Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Daniel J Sturgeon
- Center for Surgery and Public Health; Brigham and Women's Hospital,Harvard Medical School, Boston, Massachusetts
| | - Katherine G Lindeman
- Endocrine Unit, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Joel S Weissman
- Center for Surgery and Public Health; Brigham and Women's Hospital,Harvard Medical School, Boston, Massachusetts
| |
Collapse
|
34
|
Matos O, Ruthes EMP, Malinowski AKC, Lima AL, Veiga MS, Krause MP, Farah L, Souza CJF, Lass AD, Castelo-Branco C. Changes in bone mass and body composition after bariatric surgery. Gynecol Endocrinol 2020; 36:578-581. [PMID: 32406280 DOI: 10.1080/09513590.2020.1762558] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Aim: To analyze the effects of body weight loss on bone mineral density (BMD) on hip (Hip BMD) and lumbar spine (Lumbar BMD) after six months of bariatric surgery. Bariatric surgery is an effective treatment for morbid obesity. Nonetheless, there are scant data on the effect of weight bearing on bone structure.Material and methods: Seventeen obese women aged 41.2 ± 11.3 yrs. who underwent Roux-en-Y gastric bypass (RYGB) were included. Body composition assessments were performed through dual-energy X-ray absorptiometry immediately before and after 6-months RYGB. Data collected pre- and post-RYGB included total body weight, body mass index (BMI), lean body mass (LM), fat mass (FM) and bone mineral content. The pre- (PRE) and post-operative (POST) results were compared.Results: Lumbar BMD POST presented a non-significant loss of 1.8% whereas Hip BMD POST showed a significant loss of 17.8%. The analysis demonstrated that BMI and LM PRE explained 26% and 49%, respectively, of Hip BMD PRE variability. In addition, LM POST explained 30% of hip BMD POST variability and was not significant for Lumbar BMD POST.Conclusions: Obesity and rapid weight loss showed direct influence in Hip BMD after six months of bariatric surgery. However, its effect on the lumbar spine area was smaller due to the higher capacity of the spine to dissipate loads through its curvature.
Collapse
Affiliation(s)
- Oslei Matos
- Laboratory for Studies in Biomedical Engineering and Health, Federal University of Technology, Curitiba, Brazil
| | - Elena M P Ruthes
- Laboratory for Studies in Biomedical Engineering and Health, Federal University of Technology, Curitiba, Brazil
| | - Anna Karolyna C Malinowski
- Laboratory for Studies in Biomedical Engineering and Health, Federal University of Technology, Curitiba, Brazil
| | - Alice Lerias Lima
- Laboratory for Studies in Biomedical Engineering and Health, Federal University of Technology, Curitiba, Brazil
| | - Matheus S Veiga
- Laboratory for Studies in Biomedical Engineering and Health, Federal University of Technology, Curitiba, Brazil
| | - Maressa P Krause
- Laboratory for Studies in Biomedical Engineering and Health, Federal University of Technology, Curitiba, Brazil
| | - Leonardo Farah
- Laboratory for Studies in Biomedical Engineering and Health, Federal University of Technology, Curitiba, Brazil
| | | | - Andre D Lass
- Laboratory for Studies in Biomedical Engineering and Health, Federal University of Technology, Curitiba, Brazil
| | - Camil Castelo-Branco
- Clinic Institute of Gynecology, Obstetrics and Neonatology, Hospital Clinic, Faculty of Medicine, University of Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| |
Collapse
|
35
|
Corbeels K, Verlinden L, Lannoo M, Khalil R, Deleus E, Mertens A, Matthys C, Verstuyf A, Meulemans A, Vangoitsenhoven R, Carmeliet G, Van der Schueren B. The curious fate of bone following bariatric surgery: bone effects of sleeve gastrectomy (SG) and Roux-en-Y gastric bypass (RYGB) in mice. Int J Obes (Lond) 2020; 44:2165-2176. [PMID: 32546862 DOI: 10.1038/s41366-020-0626-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 05/12/2020] [Accepted: 06/01/2020] [Indexed: 12/18/2022]
Abstract
BACKGROUND Bone loss and increased fracture risk following bariatric surgery has been reported. We investigated whether the two most commonly performed surgeries, sleeve gastrectomy (SG) and Roux-en-Y gastric bypass (RYGB), lead to bone loss. In addition, we examined whether fortification of the diet with calcium citrate prevents bone loss. METHODS We used mouse models for SG and RYGB and compared bone loss with a group of sham mice with similar weight loss. All groups were switched at the time of surgery to a low-fat diet (LFD). We also examined whether fortification of the diet with calcium citrate and vitamin D was able to prevent bone loss. RESULTS At 2 weeks we observed no major bone effects. However, at 8 weeks, both trabecular and cortical bone were lost to the same extent after SG and RYGB, despite increased calcium absorption and adequate serum levels of calcium, vitamin D, and parathyroid hormone (PTH). Diet fortification with calcium citrate and vitamin D was able to partially prevent bone loss. CONCLUSIONS Both SG and RYGB lead to excess bone loss, despite intestinal adaptations to increase calcium absorption. Fortifying the diet with calcium citrate and vitamin D partly prevented the observed bone loss. This finding emphasizes the importance of nutritional support strategies after bariatric surgery, but also affirms that the exact mechanisms leading to bone loss after bariatric surgery remain elusive and thus warrant further research.
Collapse
Affiliation(s)
- Katrien Corbeels
- Clinical and Experimental Endocrinology, Department of Chronic Diseases, Metabolism and Ageing (CHROMETA), KU Leuven, Leuven, Belgium.
| | - Lieve Verlinden
- Clinical and Experimental Endocrinology, Department of Chronic Diseases, Metabolism and Ageing (CHROMETA), KU Leuven, Leuven, Belgium
| | - Matthias Lannoo
- Clinical and Experimental Endocrinology, Department of Chronic Diseases, Metabolism and Ageing (CHROMETA), KU Leuven, Leuven, Belgium.,Department of Abdominal Surgery, University Hospitals Leuven, Leuven, Belgium
| | - Rougin Khalil
- Clinical and Experimental Endocrinology, Department of Chronic Diseases, Metabolism and Ageing (CHROMETA), KU Leuven, Leuven, Belgium
| | - Ellen Deleus
- Department of Abdominal Surgery, University Hospitals Leuven, Leuven, Belgium
| | - Ann Mertens
- Clinical and Experimental Endocrinology, Department of Chronic Diseases, Metabolism and Ageing (CHROMETA), KU Leuven, Leuven, Belgium.,Department of Endocrinology, University Hospitals Leuven, Leuven, Belgium
| | - Christophe Matthys
- Clinical and Experimental Endocrinology, Department of Chronic Diseases, Metabolism and Ageing (CHROMETA), KU Leuven, Leuven, Belgium.,Department of Endocrinology, University Hospitals Leuven, Leuven, Belgium
| | - Annemieke Verstuyf
- Clinical and Experimental Endocrinology, Department of Chronic Diseases, Metabolism and Ageing (CHROMETA), KU Leuven, Leuven, Belgium
| | - Ann Meulemans
- Clinical and Experimental Endocrinology, Department of Chronic Diseases, Metabolism and Ageing (CHROMETA), KU Leuven, Leuven, Belgium.,Department of Endocrinology, University Hospitals Leuven, Leuven, Belgium
| | - Roman Vangoitsenhoven
- Clinical and Experimental Endocrinology, Department of Chronic Diseases, Metabolism and Ageing (CHROMETA), KU Leuven, Leuven, Belgium.,Department of Endocrinology, University Hospitals Leuven, Leuven, Belgium
| | - Geert Carmeliet
- Clinical and Experimental Endocrinology, Department of Chronic Diseases, Metabolism and Ageing (CHROMETA), KU Leuven, Leuven, Belgium
| | - Bart Van der Schueren
- Clinical and Experimental Endocrinology, Department of Chronic Diseases, Metabolism and Ageing (CHROMETA), KU Leuven, Leuven, Belgium.,Department of Endocrinology, University Hospitals Leuven, Leuven, Belgium
| |
Collapse
|
36
|
|
37
|
Abstract
PURPOSE OF REVIEW This review outlines the recent findings regarding the impact of bariatric surgery on bone. It explores potential mechanisms for skeletal changes following bariatric surgery and strategies for management. RECENT FINDINGS Bone loss following bariatric surgery is multifactorial. Probable mechanisms include skeletal unloading, abnormalities in calciotropic hormones, and changes in gut hormones. Skeletal changes that occur after bariatric surgery are specific to procedure type and persist for several years post-operatively. Studies suggest that while bone loss begins early, fracture risk may be increased later in the post-operative course, particularly after Roux-en-Y gastric bypass (RYGB). Further research is needed to assess the extent to which skeletal changes following bariatric surgery result in fragility. Current management should be geared toward prevention of bone loss, correction of nutritional deficiencies, and incorporation of weight bearing exercise. Pharmacologic treatment should be considered for high-risk patients.
Collapse
Affiliation(s)
- Alexandra N Krez
- Endocrinology and Metabolic Bone Disease Service, Hospital for Special Surgery New York, New York, USA
| | - Emily M Stein
- Endocrinology and Metabolic Bone Disease Service, Hospital for Special Surgery New York, New York, USA.
- Weill Cornell Medical College, 535 East 70th Street, New York, NY, 10021, USA.
| |
Collapse
|
38
|
Misra M, Singhal V, Carmine B, Bose A, Kelsey MM, Stanford FC, Bram J, Aidlen J, Inge T, Bouxsein ML, Bredella MA. Bone outcomes following sleeve gastrectomy in adolescents and young adults with obesity versus non-surgical controls. Bone 2020; 134:115290. [PMID: 32084562 PMCID: PMC7138705 DOI: 10.1016/j.bone.2020.115290] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 02/13/2020] [Accepted: 02/15/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND Sleeve gastrectomy is the most commonly performed weight loss surgery in adolescents with moderate-to-severe obesity. While studies in adults have reported on the deleterious effects of gastric bypass surgery on bone structure and strength estimates, data are lacking for the impact of sleeve gastrectomy on these measures in adolescents. OBJECTIVE To evaluate the impact of sleeve gastrectomy on bone outcomes in adolescents and young adults over 12 months using dual energy X-ray absorptiometry (DXA) and high resolution peripheral quantitative computed tomography (HRpQCT). PARTICIPANTS AND METHODS We enrolled 44 youth 14-22 years old with moderate to severe obesity; 22 underwent sleeve gastrectomy and 22 were followed without surgery (16 females and 6 males in each group). At baseline and 12 months, DXA was used to assess areal bone mineral density (aBMD), HRpQCT of the distal radius and tibia was performed to assess bone geometry, microarchitecture and volumetric BMD (vBMD), and finite element analysis to assess strength estimates (stiffness and failure load). These analyses were adjusted for age, sex, race and the bone measure at baseline. Fasting blood samples were assessed for calcium, phosphorus, and 25(OH) vitamin D (25OHD) levels. RESULTS Over 12-months, the surgical group lost 27.2% of body weight compared to 0.1% in the non-surgical (control) group. Groups did not differ for changes in 25OHD levels (p = 0.186). Compared to controls, the surgical group had reductions in femoral neck and total hip aBMD Z-scores (p ≤ 0.0006). At the distal tibia, compared to controls, the surgical group had reductions in cortical area and thickness and trabecular number, and increases in trabecular area and separation (p ≤ 0.026). At the distal radius, the surgical group had greater reductions in trabecular vBMD, than controls (p = 0.010). The surgical group had an increase in cortical vBMD at both sites (p ≤ 0.040), possibly from a decrease in cortical porosity (p ≤ 0.024). Most, but not all, differences were attenuated after adjusting for 12-month change in BMI. Groups did not differ for changes in strength estimates over time, except that increases in tibial stiffness were lower in the surgical group (p = 0.044) after adjusting for 12-month change in BMI. CONCLUSIONS Over 12 months, weight loss associated with sleeve gastrectomy in adolescents had negative effects on areal BMD and certain HRpQCT parameters. However, bone strength estimates remained stable, possibly because of a simultaneous decrease in cortical porosity and increase in cortical volumetric BMD. Additional research is necessary to determine the relative contribution(s) of weight loss and the metabolic effects of surgery on bone outcomes, and whether the observed effects on bone stabilize or progress over time.
Collapse
Affiliation(s)
- Madhusmita Misra
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States of America; Division of Pediatric Endocrinology, Massachusetts General Hospital for Children and Harvard Medical School, Boston, MA, United States of America.
| | - Vibha Singhal
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States of America; Division of Pediatric Endocrinology, Massachusetts General Hospital for Children and Harvard Medical School, Boston, MA, United States of America; Massachusetts General Hospital Weight Center, Boston, MA, United States of America
| | - Brian Carmine
- Department of Surgery, Boston Medical Center, Boston, MA, United States of America
| | - Amita Bose
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States of America
| | - Megan M Kelsey
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO, United States of America
| | - Fatima Cody Stanford
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States of America; Division of Pediatric Endocrinology, Massachusetts General Hospital for Children and Harvard Medical School, Boston, MA, United States of America; Massachusetts General Hospital Weight Center, Boston, MA, United States of America
| | - Jennifer Bram
- Weight Center, University of Massachusetts Medical School, Worcester, MA, United States of America
| | - Jeremy Aidlen
- Weight Center, University of Massachusetts Medical School, Worcester, MA, United States of America
| | - Thomas Inge
- Department of Pediatric Surgery, Children's Hospital Colorado, University of Colorado Denver, Aurora, CO, United States of America
| | - Mary L Bouxsein
- Department of Orthopedic Surgery, Beth Israel Deaconess Medical Center, and Division of Endocrinology, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Miriam A Bredella
- Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States of America
| |
Collapse
|
39
|
Saad R, Habli D, El Sabbagh R, Chakhtoura M. Bone Health Following Bariatric Surgery: An Update. J Clin Densitom 2020; 23:165-181. [PMID: 31519474 DOI: 10.1016/j.jocd.2019.08.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 08/02/2019] [Accepted: 08/05/2019] [Indexed: 12/13/2022]
Abstract
Obesity rates are increasing rapidly, and bariatric surgery is currently the most effective tool for weight loss. Recently, bariatric surgery induced bone loss has gained attention. Such detrimental effect on bone is multifactorial and causes may include nutrient deficiencies, gut and gonadal hormonal changes, mechanical unloading, loss of lean mass, increased bone marrow fat, and increased risk of fall. This review describes the available evidence on bone loss and fracture risk following bariatric surgery and summarizes the guidelines on the topic. Increased bone resorption starts early postsurgery, and bone markers peak at 1-2 yr. Across studies, the drop in areal bone mineral density is inconsistent at the lumbar spine, while a 2%-5% drop at 6 mo and a 6%-10.5% at 9-12 mo are observed at the total hip. Conversely, studies using quantitative CT showed a 6%-7% decrease in volumetric bone mineral density at the lumbar spine at 6-12 mo postsurgery. These studies also report significant bone loss at the radius and tibia, in addition to alteration in bone microarchitecture. Fracture risk increases 2 yr after surgery, more so following malabsorptive procedures. Fractures were reported at axial, weight bearing sites and at appendicular sites. The available evidence is very heterogeneous, and mostly derived from studies on Roux-en-y gastric bypass in premenopausal women. Data on restrictive procedures is scarce. Our findings suggest that the early postoperative phase represents the "golden window" to intervene and promote bone health. More research is needed to determine the effect of different bariatric procedures on bone, to identify optimal interventions to prevent bone loss and to characterize high risk individuals who should be targeted.
Collapse
Affiliation(s)
- Randa Saad
- Calcium Metabolism and Osteoporosis Program, WHO Collaborating Center for Metabolic Bone Disorders, Division of Endocrinology and Metabolism, Department of Internal Medicine-American University of Beirut Medical Center, Beirut, Lebanon
| | - Dalal Habli
- Department of Internal Medicine - American University of Beirut Medical Center, Beirut, Lebanon
| | - Rawaa El Sabbagh
- Department of Internal Medicine - American University of Beirut Medical Center, Beirut, Lebanon
| | - Marlene Chakhtoura
- Calcium Metabolism and Osteoporosis Program, WHO Collaborating Center for Metabolic Bone Disorders, Division of Endocrinology and Metabolism, Department of Internal Medicine-American University of Beirut Medical Center, Beirut, Lebanon.
| |
Collapse
|
40
|
Complexities of spine surgery in obese patient populations: a narrative review. Spine J 2020; 20:501-511. [PMID: 31877389 PMCID: PMC7136130 DOI: 10.1016/j.spinee.2019.12.011] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 12/17/2019] [Accepted: 12/18/2019] [Indexed: 02/03/2023]
Abstract
The obese population is particularly challenging to the spine surgeon in all phases of care. A narrative literature review was performed to review difficulties in spine surgery on the obese patient population and techniques for mitigation. We specifically aimed to assess several topics with regard to this population: patient selection and preoperative care; intraoperative and surgical techniques; and postoperative care, outcomes, and complications. The literature review demonstrated that obese patients are at increased surgical risk with spine surgery due to a variety of factors at all stages of intervention. Preoperatively, obese patients have worse outcomes with physical therapy and present technical difficulties for injections. Transport to a hospital, imaging, resuscitation, and intubation are all challenged by increased body habitus. Intraoperatively, obese patients have increased operative times, blood loss, surgical site infections, and nerve palsies. Patient positioning and intraoperative imaging may be limited. Surgery itself may be technically challenging due to body habitus and minimally invasive techniques are becoming more prevalent in this population. Postoperatively, several studies demonstrate that obese patients have inferior outcomes compared with nonobese counterparts. Patient selection is a key for elective interventions, and appropriate infrastructure aids in the ultimate outcomes for both elective and nonelective surgical treatments. Overall, obese patients present several challenges to the spine surgeon, and certain precautions can be undertaken preoperatively, intraoperatively, and postoperatively to mitigate the associated risks to optimize outcomes.
Collapse
|
41
|
Hansen S, Jørgensen NR, Hermann AP, Støving RK. Continuous decline in bone mineral density and deterioration of bone microarchitecture 7 years after Roux-en-Y gastric bypass surgery. Eur J Endocrinol 2020; 182:303-311. [PMID: 31940278 PMCID: PMC7087496 DOI: 10.1530/eje-19-0741] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 01/14/2020] [Indexed: 12/13/2022]
Abstract
OBJECTIVE Roux-en-Y-gastric bypass (RYGB) surgery is an effective treatment for morbid obesity. A possible overlooked side effect is negative bone metabolic consequences. DESIGN A seven-year prospective study following ten women and seven men after RYGB (baseline mean age 43 ± 8 years, BMI 42 ± 6 kg/m2). METHODS Lumbar spine and total hip bone mineral density (BMD) using dual energy x-ray absorptiometry, distal radius and tibia bone geometry, volumetric BMD, microarchitecture and finite element estimated bone strength using high-resolution peripheral quantitative CT and biochemical markers of bone remodelling were assessed at baseline, 2 and 7 years. RESULTS Compared to baseline, body weight was 24 ± 10% lower after 2 years and 21 ± 11% after 7 years. During the 7 years of follow-up, radius and tibia vBMD had declined 13 ± 8% and 8 ± 7% from baseline to 2 years and further 10 ± 7% and 7 ± 8% from 2 to 7 years (all P < 0.001). At both radius and tibia, cortical thickness declined and cortical porosity increased. From baseline to 7 years, there were clear indications of deteriorations of the trabecular network with fewer, more widely spaced and more in-homogeneously distributed trabeculae in both radius and tibia. Overall, declines in estimated bone strength of 16 ± 9% in radius and 16 ± 7% in tibia were observed (both P < 0.001). CONCLUSION Seven years after RYGB, evidence of continuous declines in BMD and ongoing deterioration of bone microarchitecture and reduced estimated bone strength compared to baseline and 2 years post-surgery results were found. These findings emphasize the need for regular assessment of bone health in patients with prior RYGB.
Collapse
Affiliation(s)
- Stinus Hansen
- Department of Medicine, Hospital South West Jutland, Esbjerg, Denmark
- Institute of Regional Health Research, University of Southern Denmark, Odense, Denmark
- Correspondence should be addressed to S Hansen;
| | - Niklas Rye Jørgensen
- Department of Clinical Biochemistry, Rigshospitalet, Glostrup, Denmark
- OPEN, Odense Patient data Explorative Network, Odense University Hospital/Institute of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Anne Pernille Hermann
- Department of Endocrinology, Odense University Hospital, Odense, Denmark
- Institute of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Rene Klinkby Støving
- Department of Endocrinology, Odense University Hospital, Odense, Denmark
- Institute of Clinical Research, University of Southern Denmark, Odense, Denmark
| |
Collapse
|
42
|
Blom-Høgestøl IK, Mala T, Kristinsson JA, Brunborg C, Gulseth HL, Eriksen EF. Changes in bone quality after Roux-en-Y gastric bypass: A prospective cohort study in subjects with and without type 2 diabetes. Bone 2020; 130:115069. [PMID: 31593823 DOI: 10.1016/j.bone.2019.115069] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 08/20/2019] [Accepted: 09/12/2019] [Indexed: 01/17/2023]
Abstract
BACKGROUND Obesity and type 2 diabetes (T2D) are associated with an increased risk of skeletal fractures despite a normal areal bone mineral density (aBMD) and low bone turnover, possibly due to reduced bone material strength. Roux-en-Y gastric bypass (RYGB) enables a substantial and persistent weight loss and resolution of obesity related comorbidities such as T2D. However, the procedure induces a decrease in aBMD and increased bone turnover and fracture rate. To our knowledge, changes in bone material strength after RYGB have not been explored. This study aimed to evaluate changes in factors influencing bone quality; bone material strength, aBMD and bone turnover markers, in a population with morbid obesity undergoing RYGB and whether these changes differed in participants with and without T2D. We also sought to assess factors associated with bone material strength and bone mineral density in obese subjects before and after RYGB. METHODS We examined 34 participants before and one year after RYGB, of whom 13 had T2D. Bone material strength index (BMSi) was evaluated by impact microindentation, aBMD and body composition by Dual energy X-ray absorptiometry, levels of bone turnover markers and calciotropic hormones were estimated from fasting serum samples. Participants with and without T2D were comparable before surgery, with the exception of glycosylated hemoglobin (HbA1c). RESULTS Preoperatively, BMSi was inversely associated with BMI, βunadjusted -1.1 (-1.9 to -0.28), R2=0.19, p=0.010, and this association remained significant after adjusting for age and gender. After RYGB the participants had lost a mean±SD of 33.9±10.9kg, 48.7±14.2 % of total body fat, increased physical activity, unchanged vitamin D levels, and all but one of the 13 participants with T2D were in diabetes remission. BMSi increased from 78.1±8.5 preoperatively to 82.0±6.4 one year after RYGB, corresponding to an increase of 4.0±9.8 in absolute units or 6.3±14.0 %, p=0.037. The increase was comparable in participants with and without T2D. In subjects with T2D, a larger decrease in HbA1c was associated with a larger increase in BMSi βunadjusted -9.2 (-16.5 to -1.9), R2=0.47, p=0.019. Bone turnover markers (CTX-1 and PINP) increased by 195.1±133.5 % and 109.5±70.6 %, respectively. aBMD decreased by 3.9±5.5 % in the lumbar spine, 8.2±4.6 % in the femoral neck, 11.6±4.9 % in total hip and 9.4±3.8 % in total body. CONCLUSION Our findings indicate that bone material strength improves despite an increase in bone turnover and a decrease in aBMD one year after RYGB. Trends were statistically comparable in participants with and without T2D. However, improved glucose control was associated with improved bone material strength in participants with T2D.
Collapse
Affiliation(s)
- I K Blom-Høgestøl
- Department of Endocrinology, Morbid Obesity and Preventive Medicine, Oslo University Hospital, Oslo, Norway; Institute of Clinical Medicine, University of Oslo, Oslo, Norway.
| | - T Mala
- Department of Endocrinology, Morbid Obesity and Preventive Medicine, Oslo University Hospital, Oslo, Norway; Department of Gastrointestinal Surgery and Paediatric Surgery, Oslo University, Norway
| | - J A Kristinsson
- Department of Endocrinology, Morbid Obesity and Preventive Medicine, Oslo University Hospital, Oslo, Norway; Department of Gastrointestinal Surgery and Paediatric Surgery, Oslo University, Norway
| | - C Brunborg
- Oslo Centre for Biostatistics and Epidemiology, Research Support Services, Oslo University Hospital, Oslo, Norway
| | - H L Gulseth
- Department of Endocrinology, Morbid Obesity and Preventive Medicine, Oslo University Hospital, Oslo, Norway; Department of Chronic Diseases and Ageing, Norwegian Institute of Public Health, Norway
| | - E F Eriksen
- Department of Endocrinology, Morbid Obesity and Preventive Medicine, Oslo University Hospital, Oslo, Norway; Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| |
Collapse
|
43
|
Tangalakis LL, Tabone L, Spagnoli A, Muehlbauer M, Omotosho P, Torquati A. Effects of Roux-en-Y Gastric Bypass on Osteoclast Activity and Bone Density in Morbidly Obese Patients with Type 2 Diabetes. Obes Surg 2020; 30:290-295. [PMID: 31471767 PMCID: PMC7515205 DOI: 10.1007/s11695-019-04154-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
INTRODUCTION Roux-en-Y gastric bypass (RYGB) is a well-established treatment for morbid obesity and type 2 diabetes. The effects of RYGB on bone metabolism and bone health are largely unknown. OBJECTIVE Determine the changes in osteoclast function and bone density 1 year after RYGB as compared with a control group undergoing a diabetes support and education program (DSE). DESIGN A prospective cohort study with patients matched for weight and age assigned to RYGB or DSE. SETTING Large academic institution. PATIENTS OR OTHER PARTICIPANTS Patients with type 2 diabetes mellitus and morbid obesity (body mass index greater than 35 kg/m2). INTERVENTION Subjects either received laparoscopic RYBG or DSE, which consisted of nutritional, exercise, and dietary counseling performed by a certified diabetic educator and a nutritionist three times over a year. MAIN OUTCOME MEASURE Osteoclast activity, bone mineral density. RESULTS One year after, intervention subjects undergoing RYGB have a 280% increase in osteoclast activity as compared with a 7.6% increase in the DSE control group (P < 0.001). Furthermore, there was a statistically significant increase in sclerostin levels in subjects undergoing RYGB compared with an increase in the control group. The total bone mineral density was statistically unchanged within 1 year of intervention in both groups. A statistically significant decrease in bone mineral density in the left ribs (decrease of 6.8%, P < 0.05) and lumbar spine (decrease of 4.0%, P < 0.05) was seen 1 year after RYGB. CONCLUSIONS There is a significant increase in osteoclast activity observed 1 year after RYGB; the long-term clinical implications of this increased bone metabolism are unknown.
Collapse
Affiliation(s)
- Laurel L Tangalakis
- Department of Surgery, Rush University Medical Center, 1750 W Harrison St, 791 Jelke, Chicago, IL, 60612, USA.
| | - Lawrence Tabone
- Department of Surgery, Duke University Medical Center, Durham, North Carolina, USA
| | - Anna Spagnoli
- Department of Surgery, Rush University Medical Center, 1750 W Harrison St, 791 Jelke, Chicago, IL, 60612, USA
| | - Mike Muehlbauer
- Sarah W. Steadman Nutrition and Metabolism Center, Duke University Medical Center, Durham, North Carolina, USA
| | - Philip Omotosho
- Department of Surgery, Rush University Medical Center, 1750 W Harrison St, 791 Jelke, Chicago, IL, 60612, USA
| | - Alfonso Torquati
- Department of Surgery, Rush University Medical Center, 1750 W Harrison St, 791 Jelke, Chicago, IL, 60612, USA
| |
Collapse
|
44
|
Smit MA, van Kinschot CMJ, van der Linden J, van Noord C, Kos S. Clinical Guidelines and PTH Measurement: Does Assay Generation Matter? Endocr Rev 2019; 40:1468-1480. [PMID: 31081903 DOI: 10.1210/er.2018-00220] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Accepted: 03/08/2019] [Indexed: 11/19/2022]
Abstract
PTH is an important regulator of calcium and phosphate homeostasis and bone remodeling. It is metabolized into PTH fragments, which are measured to a different extent by PTH assays of different generations because of differences in fragments recognized and lack of assay standardization. PTH is measured in the workup of several conditions, and clinical guidelines provide recommendations concerning these measurements. This review provides an overview of the impact of differences between PTH assays, applying distinct clinical guidelines for primary and secondary hyperparathyroidism and perioperative use of PTH measurements. Guidelines deal with PTH measurement in different ways, recommending either trend monitoring, the use of a fold increase of the upper reference limit, or an absolute PTH cutoff value. For classic primary hyperparathyroidism (PHPT), the type of PTH assay used will not affect diagnosis or management because the precise concentration of PTH is less relevant. In chronic kidney disease, the guideline recommends treating secondary hyperparathyroidism above a twofold to ninefold PTH increase, which will result in different clinical decisions depending on the assay used. For patients after bariatric surgery, guidelines state absolute cutoff values for PTH, but the impact of different generation assays is unknown because direct comparison of PTH assays has never been performed. During parathyroid surgery, PTH measurements with a third-generation assay reflect treatment success more rapidly than second-generation assays. Increased awareness among clinicians regarding the complexity of PTH measurements is warranted because it can affect clinical decisions.
Collapse
Affiliation(s)
- Marjon A Smit
- Department of Clinical Chemistry, Maasstad Hospital, Rotterdam, Netherlands
| | | | | | | | - Snježana Kos
- Department of Clinical Chemistry, Maasstad Hospital, Rotterdam, Netherlands
| |
Collapse
|
45
|
Lespessailles E, Paccou J, Javier RM, Thomas T, Cortet B. Obesity, Bariatric Surgery, and Fractures. J Clin Endocrinol Metab 2019; 104:4756-4768. [PMID: 30901056 DOI: 10.1210/jc.2018-02084] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 03/13/2019] [Indexed: 12/14/2022]
Abstract
CONTEXT Obesity and its associated comorbidities are a recognized and growing public health problem. For a long time, obesity-associated effects on bone were considered to strengthen the bone, mainly because of the known relationship between body weight and bone mass and the long-term weight-bearing load effect on bone. However, recent epidemiologic studies have shown that obesity may not have a fully protective effect on the occurrence of fragility fractures. The goal of this article is to review updated information on the link between obesity, bariatric surgery, and fractures. METHODS The primary source literature for this review was acquired by searching a published database for reviews and articles up to January 2018. Additional references were selected through the in-depth analysis of the relevant studies. RESULTS We present data showing that overweight and obesity are often encountered in fracture cases. We also analyzed possible reasons and risk factors for fractures associated with overweight and patients with obesity. In addition, this review focuses on the complex effects of dramatic changes in body composition when interpreting dual-energy X-ray absorptiometry readings and findings. Finally, we review the data on the effects and consequences of bariatric surgery on bone metabolism and the risk of fractures in patients undergoing these procedures. CONCLUSION Because of various adiposity-induced effects, patients with obesity are at risk for fracture in certain sites. Bariatric surgery increases the risk of fractures in patients undergoing malabsorptive procedures.
Collapse
Affiliation(s)
- Eric Lespessailles
- Department of Rheumatology, Regional Hospital of Orleans, University of Orleans, Orleans, France
| | - Julien Paccou
- Department of Rheumatology, University Hospital of Lille, University of Lille, Lille, France
| | - Rose-Marie Javier
- Department of Rheumatology, Strasbourg University Hospital, Strasbourg, France
| | - Thierry Thomas
- Department of Rheumatology, Nord Hospital, University Hospital of St-Etienne, University of Lyon, Saint-Etienne, France
| | - Bernard Cortet
- Department of Rheumatology, University Hospital of Lille, University of Lille, Lille, France
| | | |
Collapse
|
46
|
Murai IH, Roschel H, Dantas WS, Gil S, Merege-Filho C, de Cleva R, de Sá-Pinto AL, Lima F, Santo MA, Benatti FB, Kirwan JP, Pereira RM, Gualano B. Exercise Mitigates Bone Loss in Women With Severe Obesity After Roux-en-Y Gastric Bypass: A Randomized Controlled Trial. J Clin Endocrinol Metab 2019; 104:4639-4650. [PMID: 31322672 DOI: 10.1210/jc.2019-00074] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Accepted: 07/15/2019] [Indexed: 11/19/2022]
Abstract
CONTEXT Bone loss after bariatric surgery potentially could be mitigated by exercise. OBJECTIVE To investigate the role of exercise training (ET) in attenuating bariatric surgery-induced bone loss. DESIGN Randomized, controlled trial. SETTING Referral center for bariatric surgery. PATIENTS Seventy women with severe obesity, aged 25 to 55 years, who underwent Roux-en-Y gastric bypass (RYGB). INTERVENTION Supervised, 6-month, ET program after RYGB vs. standard of care (RYGB only). OUTCOMES Areal bone mineral density (aBMD) was the primary outcome. Bone microarchitecture, bone turnover, and biochemical markers were secondary outcomes. RESULTS Surgery significantly decreased femoral neck, total hip, distal radius, and whole body aBMD (P < 0.001); and increased bone turnover markers, including collagen type I C-telopeptide (CTX), procollagen type I N-propeptide (P1NP), sclerostin, and osteopontin (P < 0.05). Compared with RYGB only, exercise mitigated the percent loss of aBMD at femoral neck [estimated mean difference (EMD), -2.91%; P = 0.007;], total hip (EMD, -2.26%; P = 0.009), distal radius (EMD, -1.87%; P = 0.038), and cortical volumetric bone mineral density at distal radius (EMD, -2.09%; P = 0.024). Exercise also attenuated CTX (EMD, -0.20 ng/mL; P = 0.002), P1NP (EMD, -17.59 ng/mL; P = 0.024), and sclerostin levels (EMD, -610 pg/mL; P = 0.046) in comparison with RYGB. Exercise did not affect biochemical markers (e.g., 25(OH)D, calcium, intact PTH, phosphorus, and magnesium). CONCLUSION Exercise mitigated bariatric surgery-induced bone loss, possibly through mechanisms involving suppression in bone turnover and sclerostin. Exercise should be incorporated in postsurgery care to preserve bone mass.
Collapse
Affiliation(s)
- Igor H Murai
- Applied Physiology & Nutrition Research Group, Laboratory of Assessment and Conditioning in Rheumatology, School of Physical Education and Sport, Hospital das Clínicas HCFMUSP, Faculdade de Medicina FMUSP, University of São Paulo, São Paulo, Brazil
| | - Hamilton Roschel
- Applied Physiology & Nutrition Research Group, Laboratory of Assessment and Conditioning in Rheumatology, School of Physical Education and Sport, Hospital das Clínicas HCFMUSP, Faculdade de Medicina FMUSP, University of São Paulo, São Paulo, Brazil
- Rheumatology Division, Hospital das Clínicas HCFMUSP, Faculdade de Medicina FMUSP, University of São Paulo, São Paulo, Brazil
| | - Wagner S Dantas
- Applied Physiology & Nutrition Research Group, Laboratory of Assessment and Conditioning in Rheumatology, School of Physical Education and Sport, Hospital das Clínicas HCFMUSP, Faculdade de Medicina FMUSP, University of São Paulo, São Paulo, Brazil
| | - Saulo Gil
- Applied Physiology & Nutrition Research Group, Laboratory of Assessment and Conditioning in Rheumatology, School of Physical Education and Sport, Hospital das Clínicas HCFMUSP, Faculdade de Medicina FMUSP, University of São Paulo, São Paulo, Brazil
| | - Carlos Merege-Filho
- Applied Physiology & Nutrition Research Group, Laboratory of Assessment and Conditioning in Rheumatology, School of Physical Education and Sport, Hospital das Clínicas HCFMUSP, Faculdade de Medicina FMUSP, University of São Paulo, São Paulo, Brazil
| | - Roberto de Cleva
- Gastroenterology Department, Digestive Surgery Division, Hospital das Clínicas HCFMUSP, Faculdade de Medicina FMUSP, University of São Paulo, São Paulo, Brazil
| | - Ana L de Sá-Pinto
- Rheumatology Division, Hospital das Clínicas HCFMUSP, Faculdade de Medicina FMUSP, University of São Paulo, São Paulo, Brazil
| | - Fernanda Lima
- Rheumatology Division, Hospital das Clínicas HCFMUSP, Faculdade de Medicina FMUSP, University of São Paulo, São Paulo, Brazil
| | - Marco A Santo
- Gastroenterology Department, Digestive Surgery Division, Hospital das Clínicas HCFMUSP, Faculdade de Medicina FMUSP, University of São Paulo, São Paulo, Brazil
| | - Fabiana B Benatti
- Applied Physiology & Nutrition Research Group, Laboratory of Assessment and Conditioning in Rheumatology, School of Physical Education and Sport, Hospital das Clínicas HCFMUSP, Faculdade de Medicina FMUSP, University of São Paulo, São Paulo, Brazil
- School of Applied Sciences, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
| | - John P Kirwan
- Integrative Physiology and Molecular Metabolism Group, Pennington Biomedical Research Center, Baton Rouge, Louisiana
| | - Rosa M Pereira
- Rheumatology Division, Hospital das Clínicas HCFMUSP, Faculdade de Medicina FMUSP, University of São Paulo, São Paulo, Brazil
| | - Bruno Gualano
- Applied Physiology & Nutrition Research Group, Laboratory of Assessment and Conditioning in Rheumatology, School of Physical Education and Sport, Hospital das Clínicas HCFMUSP, Faculdade de Medicina FMUSP, University of São Paulo, São Paulo, Brazil
- Rheumatology Division, Hospital das Clínicas HCFMUSP, Faculdade de Medicina FMUSP, University of São Paulo, São Paulo, Brazil
| |
Collapse
|
47
|
Wu PH, Gibbons M, Foreman SC, Carballido-Gamio J, Han M, Krug R, Liu J, Link TM, Kazakia GJ. Cortical bone vessel identification and quantification on contrast-enhanced MR images. Quant Imaging Med Surg 2019; 9:928-941. [PMID: 31367547 DOI: 10.21037/qims.2019.05.23] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Background Cortical bone porosity is a major determinant of bone strength. Despite the biomechanical importance of cortical bone porosity, the biological drivers of cortical porosity are unknown. The content of cortical pore space can indicate pore expansion mechanisms; both of the primary components of pore space, vessels and adipocytes, have been implicated in pore expansion. Dynamic contrast-enhanced MRI (DCE-MRI) is widely used in vessel detection in cardiovascular studies, but has not been applied to visualize vessels within cortical bone. In this study, we have developed a multimodal DCE-MRI and high resolution peripheral QCT (HR-pQCT) acquisition and image processing pipeline to detect vessel-filled cortical bone pores. Methods For this in vivo human study, 19 volunteers (10 males and 9 females; mean age =63±5) were recruited. Both distal and ultra-distal regions of the non-dominant tibia were imaged by HR-pQCT (82 µm nominal resolution) for bone structure segmentation and by 3T DCE-MRI (Gadavist; 9 min scan time; temporal resolution =30 sec; voxel size 230×230×500 µm3) for vessel visualization. The DCE-MRI was registered to the HR-pQCT volume and the voxels within the MRI cortical bone region were extracted. Features of the DCE data were calculated and voxels were categorized by a 2-stage hierarchical kmeans clustering algorithm to determine which voxels represent vessels. Vessel volume fraction (volume ratio of vessels to cortical bone), vessel density (average vessel count per cortical bone volume), and average vessel volume (mean volume of vessels) were calculated to quantify the status of vessel-filled pores in cortical bone. To examine spatial resolution and perform validation, a virtual phantom with 5 channel sizes and an applied pseudo enhancement curve was processed through the proposed image processing pipeline. Overlap volume ratio and Dice coefficient was calculated to measure the similarity between the detected vessel map and ground truth. Results In the human study, mean vessel volume fraction was 2.2%±1.0%, mean vessel density was 0.68±0.27 vessel/mm3, and mean average vessel volume was 0.032±0.012 mm3/vessel. Signal intensity for detected vessel voxels increased during the scan, while signal for non-vessel voxels within pores did not enhance. In the validation phantom, channels with diameter 250 µm or greater were detected successfully, with volume ratio equal to 1 and Dice coefficient above 0.6. Both statistics decreased dramatically for channel sizes less than 250 µm. Conclusions We have a developed a multi-modal image acquisition and processing pipeline that successfully detects vessels within cortical bone pores. The performance of this technique degrades for vessel diameters below the in-plane spatial resolution of the DCE-MRI acquisition. This approach can be applied to investigate the biological systems associated with cortical pore expansion.
Collapse
Affiliation(s)
- Po-Hung Wu
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA, USA
| | - Matthew Gibbons
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA, USA
| | - Sarah C Foreman
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA, USA
| | | | - Misung Han
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA, USA
| | - Roland Krug
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA, USA
| | - Jing Liu
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA, USA
| | - Thomas M Link
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA, USA
| | - Galateia J Kazakia
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA, USA
| |
Collapse
|
48
|
Justinussen T, Madsbad S, Holst JJ, Bojsen-Møller KN. Pros and cons of Roux en-Y gastric bypass surgery in obese patients with type 2 diabetes. Expert Rev Endocrinol Metab 2019; 14:243-257. [PMID: 31215828 DOI: 10.1080/17446651.2019.1628639] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Accepted: 06/04/2019] [Indexed: 02/06/2023]
Abstract
INTRODUCTION The worldwide prevalence of obesity and type 2 diabetes (T2D) constitutes an epidemic that is a threat to public health. Bariatric surgery, including Roux en-Y gastric bypass (RYGB), is currently the most effective treatment to induce long-term weight loss and remission of co-morbid conditions. Surgery, however, comes with an added risk of complications, highlighting the need to understand the comparative effectiveness and risks of surgical versus conventional approaches to the treatment of obesity and T2D. AREAS COVERED Positive and negative outcomes of RYGB surgery in patients with T2D are assessed, with a primary focus on RYGB surgery versus standard non-surgical treatment of obese patients with T2D in randomized clinical trials or high-quality observational cohorts. Searches were conducted in the PubMed database up to 11 April 2019 for relevant studies. EXPERT OPINION High-level evidence reveals that RYGB ameliorates the clinical manifestations of T2D to a significantly higher degree than medical therapy. Postoperative incidence of beneficial effects and complications, however, differ across subgroups of patients with different preoperative characteristics. Key knowledge gaps, particularly on long-term complications, microvascular- and macrovascular events, and mortality should be addressed, so treatment with RYGB can be applied in an individualized approach to maximize benefits and minimize complications.
Collapse
Affiliation(s)
- Tummas Justinussen
- a Department of Endocrinology , Copenhagen University Hospital Hvidovre , Hvidovre , Denmark
- b Novo Nordisk Foundation Centre for Basic Metabolic Research , University of Copenhagen , Copenhagen , Denmark
| | - Sten Madsbad
- a Department of Endocrinology , Copenhagen University Hospital Hvidovre , Hvidovre , Denmark
- b Novo Nordisk Foundation Centre for Basic Metabolic Research , University of Copenhagen , Copenhagen , Denmark
| | - Jens Juul Holst
- b Novo Nordisk Foundation Centre for Basic Metabolic Research , University of Copenhagen , Copenhagen , Denmark
- c Department of Biomedical Sciences, Faculty of Health , University of Copenhagen , Copenhagen , Denmark
| | - Kirstine Nyvold Bojsen-Møller
- a Department of Endocrinology , Copenhagen University Hospital Hvidovre , Hvidovre , Denmark
- b Novo Nordisk Foundation Centre for Basic Metabolic Research , University of Copenhagen , Copenhagen , Denmark
| |
Collapse
|
49
|
Caksa S, Yuan A, Rudolph SE, Yu EW, Popp KL, Bouxsein ML. Influence of soft tissue on bone density and microarchitecture measurements by high-resolution peripheral quantitative computed tomography. Bone 2019; 124:47-52. [PMID: 30998999 DOI: 10.1016/j.bone.2019.04.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 04/11/2019] [Accepted: 04/13/2019] [Indexed: 10/27/2022]
Abstract
High-resolution peripheral quantitative computed tomography (HR-pQCT) is a non-invasive method of measuring volumetric bone mineral density (vBMD) and microarchitecture at the distal radius and tibia. With increasing use of this technology, it is crucial to understand the potential impact of overlying soft tissue on the accuracy of HR-pQCT measures. Thus, we examined the effects of a simulated increase in adiposity (via 6- and 12-mm thick layers of overlying circumferential fat) on HR-pQCT measures of a hydroxyapatite (HA) phantom and in women (n = 20, aged 18-75 years). In the phantom, increasing the amount of overlying fat tissue led to a corresponding decrease in the mean measured density for each HA rod. In women, fat-layering led to a decrease in total vBMD (-2.9 to -3.7%, p < 0.001), cortical vBMD (-1.4% to -5.5%, p < 0.001), and estimated failure load (-1.4 to -5.7%, p = 0.002) at the radius, with similar changes in the tibia. Trabecular microarchitectural measurements were also impacted by simulated adiposity, with fat-layering leading to decreased trabecular thickness and separation and increased trabecular number at the radius (Δ's = 5 to 12%) with more pronounced differences at the tibia (Δ's = 14 to 40%). At the tibia, fat-layering also led to decreased cortical thickness and increased cortical porosity. Altogether, these results demonstrate that overlying adipose tissue can lead to artifacts in bone measurements by HR-pQCT, resulting in an underestimation of vBMD and generally, an overestimation of bone microarchitecture impairment. Therefore, soft tissue artifact should be considered when interpreting HR-pQCT results, particularly in those with high BMI and/or marked changes in adiposity.
Collapse
Affiliation(s)
- Signe Caksa
- Endocrine Unit, Massachusetts General Hospital, 50 Blossom Street, THR-1051 Boston, MA, USA
| | - Amy Yuan
- Endocrine Unit, Massachusetts General Hospital, 50 Blossom Street, THR-1051 Boston, MA, USA
| | - Sara E Rudolph
- Endocrine Unit, Massachusetts General Hospital, 50 Blossom Street, THR-1051 Boston, MA, USA
| | - Elaine W Yu
- Endocrine Unit, Massachusetts General Hospital, 50 Blossom Street, THR-1051 Boston, MA, USA; Harvard Medical School, 25 Shattuck St., Boston, MA, USA
| | - Kristin L Popp
- Endocrine Unit, Massachusetts General Hospital, 50 Blossom Street, THR-1051 Boston, MA, USA; United States Army Research Institute of Environmental Medicine, 10 General Greene Ave, Natick, MA, USA; Harvard Medical School, 25 Shattuck St., Boston, MA, USA.
| | - Mary L Bouxsein
- Endocrine Unit, Massachusetts General Hospital, 50 Blossom Street, THR-1051 Boston, MA, USA; Harvard Medical School, 25 Shattuck St., Boston, MA, USA; Center for Advanced Orthopedic Studies, Beth Israel Deaconess Medical Center, One Overland Street, Boston, MA, USA
| |
Collapse
|
50
|
Gabbard J, Breznau C, Marterre B. Palliative Management Pearls for Postbariatric Surgery Patients #373. J Palliat Med 2019; 22:591-592. [PMID: 31063445 DOI: 10.1089/jpm.2019.0074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|