1
|
Crouch G, Dhanekula ND, Byth K, Burn E, Lau SL, Nairn L, Nery L, Doyle J, Graham E, Ellis A, Clifton-Bligh RJ, Girgis CM. The Sydney AFF Score: A Simple Tool to Distinguish Females Presenting With Atypical Femur Fractures Versus Typical Femur Fractures. J Bone Miner Res 2021; 36:910-920. [PMID: 33528853 DOI: 10.1002/jbmr.4255] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 01/05/2021] [Accepted: 01/12/2021] [Indexed: 01/21/2023]
Abstract
Atypical femur fractures (AFF) are a rare but serious complication of long-term bisphosphonate use. Although clearly defined by ASBMR criteria, a proportion of patients with AFFs may go unrecognized and the use of qualitative fracture criteria may lead to uncertainty in AFF diagnosis, with significant therapeutic implications. A score that rapidly and accurately identifies AFFs among subtrochanteric femur fractures using quantitative, measurable parameters is needed. In a retrospective cohort of 110 female patients presenting with AFFs or typical femur fractures (TFFs), multiple logistic regression and decision tree analysis were used to develop the Sydney AFF score. This score, based on demographic and femoral geometry variables, uses three dichotomized independent predictors and adds one point for each: (age ≤80 years) + (femoral neck width <37 mm) + (lateral cortical width at lesser trochanter ≥5 mm), (score, 0 to 3). In an independent validation set of 53 female patients at a different centre in Sydney, a score ≥2 demonstrated 73.3% sensitivity and 69.6% specificity for AFF (area under the receiver-operating characteristic curve [AUC] 0.775, SE 0.063) and remained independently associated with AFF after adjustment for bisphosphonate use. The Sydney AFF score provides a quantitative means of flagging female patients with atraumatic femur fractures who have sustained an AFF as opposed to a TFF. This distinction has clear management implications and may augment current ASBMR diagnostic criteria. © 2021 American Society for Bone and Mineral Research (ASBMR).
Collapse
Affiliation(s)
- Gareth Crouch
- Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
| | - Nitesh D Dhanekula
- Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia.,Department of Orthopaedic Surgery, Westmead Hospital, Westmead, NSW, Australia
| | - Karen Byth
- Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia.,Western Sydney Local Health District (WSLHD) Research and Education Network, Westmead Hospital, Westmead, NSW, Australia
| | - Emma Burn
- Department of Medicine, West Suffolk Hospital, Bury St Edmonds, UK
| | - Sue Lynn Lau
- Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia.,Department of Endocrinology and Diabetes, Westmead Hospital, Westmead, NSW, Australia
| | - Lillias Nairn
- Department of Physiotherapy, Royal North Shore Hospital, St Leonards, NSW, Australia
| | - Liza Nery
- Department of Endocrinology and Diabetes, Royal North Shore Hospital, St Leonards, NSW, Australia
| | - Jean Doyle
- Department of Endocrinology and Diabetes, Royal North Shore Hospital, St Leonards, NSW, Australia
| | - Edward Graham
- Department of Orthopaedic Surgery, Westmead Hospital, Westmead, NSW, Australia
| | - Andrew Ellis
- Department of Orthopaedic Surgery, Royal North Shore Hospital, St Leonards, NSW, Australia
| | - Roderick J Clifton-Bligh
- Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia.,Department of Endocrinology and Diabetes, Royal North Shore Hospital, St Leonards, NSW, Australia.,Kolling Institute of Medical Research, Sydney, NSW, Australia
| | - Christian M Girgis
- Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia.,Department of Endocrinology and Diabetes, Westmead Hospital, Westmead, NSW, Australia.,Department of Endocrinology and Diabetes, Royal North Shore Hospital, St Leonards, NSW, Australia.,The Westmead Institute for Medical Research, Westmead, NSW, Australia
| |
Collapse
|
2
|
Camila N, Rita TS, Mesquita P, Jácomo R, Nery L, Barra G. Whole-exome sequencing as first-tier testing approach for identification of the causal mutations in hereditary spherocytosis candidate genes and the use of non-sanger-based methods for validation of the findings. Clin Chim Acta 2019. [DOI: 10.1016/j.cca.2019.03.963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
4
|
Affiliation(s)
- E.S. Dylke
- Faculty of Health Sciences, University of Sydney, Sydney, Australia
| | - L.C. Ward
- Faculty of Health Sciences, University of Sydney, Sydney, Australia
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Australia
| | | | - L. Nery
- Department of Endocrinology, Royal North Shore Hospital, St Leonards, NSW, Australia
| | - S.L. Kilbreath
- Faculty of Health Sciences, University of Sydney, Sydney, Australia
| |
Collapse
|
5
|
Kilbreath S, Refshauge KM, Beith J, Ward L, Sawkins K, Paterson R, Clifton-Bligh P, Sambrook PN, Simpson JM, Nery L. Prevention of osteoporosis as a consequence of aromatase inhibitor therapy in postmenopausal women with early breast cancer: rationale and design of a randomized controlled trial. Contemp Clin Trials 2011; 32:704-9. [PMID: 21570487 DOI: 10.1016/j.cct.2011.04.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2010] [Revised: 04/12/2011] [Accepted: 04/27/2011] [Indexed: 11/12/2022]
Abstract
BACKGROUND Aromatase inhibitors (AIs) have improved the prognosis for breast cancer survivors and are now standard of care for postmenopausal women with hormone receptor positive early stage breast cancer. One side-effect, however, is a decrease in bone mineral density (BMD) and increased fracture risk. Since hormone replacement therapy (HRT) is contraindicated in these women, one prevention option is exercise combined with vitamin D and calcium. The effect of this intervention on drug-induced osteoporosis is unknown. METHODS A single-blind randomized controlled trial will be undertaken to test the hypothesis that exercise combined with vitamin D and calcium can prevent the decrease in BMD associated with the use of AIs. Sixty postmenopausal women prescribed an AI for the treatment of breast cancer will be randomized into either an exercise or control group. Participants randomized to the exercise group will undertake a 12-month gym-based exercise program, 3 times per week involving resistance and impact training. Participants in the control group will be advised on the benefits of exercise for preventing osteoporosis, but not prescribed exercise. Both groups will receive vitamin D and calcium supplements. The primary outcome will be total hip bone mineral density measured via dual energy X-ray absorptiometry (DXA). Study outcomes will be compared between groups at baseline, 6months and 12months. SUMMARY This study will investigate the effect of exercise in combination with vitamin D and calcium on prevention of drug-induced osteoporosis in postmenopausal women prescribed AIs for the treatment of breast cancer.
Collapse
Affiliation(s)
- Sharon Kilbreath
- Faculty of Health Sciences, University of Sydney, PO Box 170, Lidcombe, NSW 1825, Australia.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
6
|
Abstract
We studied the effect of inhaled corticosteroids on the increase in bone mineral content in prepubertal children with asthma. Forty-eight asthmatic, prepubertal children receiving either inhaled beclomethasone dipropionate or budesonide were evaluated. Nine children of similar age not receiving inhaled steroids served as controls. The average age of corticosteroid-treated children was 7.8 +/- 2.4 years, and of control children, 8.4 +/- 2.1 years (NS). The average dose of inhaled corticosteroids in the treated children was 0.67 +/- 0.48 mg/m(2)/day, and they were followed over a 9-20-month period. Total bone mineral content (TBMC) was measured at baseline and after 9-20 months. A derived value for 12 months' TBMC was calculated, assuming that changes in TBMC were linear with the passage of time. The change in TBMC over a 12-month period was 264 +/- 68 mg for the corticosteroid-treated children and 330 +/- 84 mg for control children (P < 0.025). In a multiple regression analysis in which adjustments were made for the effects of age, height, and weight, the change in TBMC in corticosteroid-treated children was inversely related to the inhaled steroid dose/m(2)/day (P = 0.016). The increase in the lumbar vertebral bone mineral density in control children was also significantly greater than in the corticosteroid-treated children (P < 0.025). We conclude that inhaled steroids, at an average dose of 0.67 mg/m(2)/day, when used in the treatment of asthma reduce the acquisition of bone mineral in prepubertal children.
Collapse
Affiliation(s)
- H D Allen
- Department of Paediatrics, Royal North Shore Hospital, Sydney, New South Wales, Australia
| | | | | | | | | | | |
Collapse
|
7
|
Diamond T, Nery L, Hales I. A therapeutic dilemma: suppressive doses of thyroxine significantly reduce bone mineral measurements in both premenopausal and postmenopausal women with thyroid carcinoma. J Clin Endocrinol Metab 1991; 72:1184-8. [PMID: 2026740 DOI: 10.1210/jcem-72-6-1184] [Citation(s) in RCA: 122] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
We measured lumbar spine, femoral neck, and forearm bone mineral (BMD) in 24 women (14 premenopausal and 10 postmenopausal) who had been treated with total thyroidectomy and 131 Iodine ablation therapy for nonanaplastic thyroid carcinoma and 24 case controls. At the time of the study, all patients were free of cancer (negative 131 Iodine whole body scan and serum thyroglobulin levels less than 0.3 micrograms/L) and all were receiving doses of T4 sufficiently high to prevent a rise in a serum thyroid-stimulating hormone concentration after an iv bolus of TRH. Femoral neck BMD were significantly reduced in both the premenopausal women (89 +/- 3.8% of case controls, 95% CI, 81 to 98) and postmenopausal women (77 +/- 3.9% of case controls; 95% CI, 68 to 86) receiving T4. Lumbar spine BMD and forearm BMD were unaffected in the premenopausal women, but significantly reduced in the postmenopausal women receiving T4 (lumbar spine BMD = 84 +/- 6.2% of case controls; 95% CI, 70 to 98 and forearm BMD = 89 +/- 5.6% of case controls; 95% CI, 76 to 101). Serum bone Gla-protein, a marker of bone turnover, was significantly increased in both the premenopausal and the postmenopausal women receiving T4 compared to case controls (P less than 0.001 for the difference between patient groups and controls). Whereas the cumulative dose of T4 was highly correlated with the femoral neck BMD in the premenopausal patients (r = 0.528; P less than 0.05); the presence of hypogonadism was the main determinant of the lumbar spine and forearm BMD. This data confirms that premenopausal and postmenopausal women receiving suppressive doses of T4 for thyroid carcinoma have diminished bone mineral measurements and are at risk for osteoporosis.
Collapse
Affiliation(s)
- T Diamond
- Department of Endocrinology, St. George Hospital, Kogarah, Sydney, Australia
| | | | | |
Collapse
|
8
|
Abstract
STUDY OBJECTIVE To measure spinal and peripheral bone mineral densities in patients with acromegaly. DESIGN Retrospective study. SETTING Tertiary care center. SUBJECTS Twenty-four patients with acromegaly and 24 case controls. Seventeen patients (12 eugonadal and 5 hypogonadal) had "active" disease as indicated by elevated plasma concentrations of growth hormone or somatomedin C or both at the time of the study. Seven patients (all hypogonadal) had inactive disease by these criteria. MEASUREMENTS AND MAIN RESULTS Bone mineral was measured by single photon absorptiometry of the forearm and dual photon absorptiometry of the spine. The forearm bone mineral content of patients with active disease, regardless of gonadal status, was significantly higher than that of normal subjects (P less than 0.001) or of patients with inactive disease (P less than 0.001). The disease "activity" (17.2 +/- 3.7; CI, 9.5 to 24.9) and the sex of the patient (female, -16.6 +/- 3.4; CI, -23.7 to -9.5) were the only independent predictors of forearm measurements. Vertebral bone densities were lower in acromegalic patients than in normal subjects (P less than 0.001). Vertebral values were correlated with the gonadal status of the patients (hypogonadism, -0.126 +/- 0.056; CI, -0.244 to -0.009) and with serum calcium concentrations (0.592 +/- 0.274; CI, 0.032 to 1.153) but not with acromegalic activity. In 13 patients, forearm bone was measured before and after treatment (mean duration of follow-up, 3.4 years). Patients with persistently elevated, plasma somatomedin C concentrations at the end of the study period showed a mean annual increase of 1.5% in forearm measurements during the period of observation, whereas patients with normal concentrations showed a mean annual decrease of 1.0% (P less than 0.01 for the difference between the groups). The percent change in forearm bone mineral content per year (y) was highly correlated with residual somatomedin C activity (x): y = 2.023x - 2.75; r = 0.665. CONCLUSIONS Forearm and vertebral bone mineral measurements change in opposite directions in acromegaly. The high forearm values are attributable to the growth-promoting action of growth hormone and somatomedin C, whereas low vertebral values are associated with hypogonadism.
Collapse
Affiliation(s)
- T Diamond
- Royal North Shore Hospital, Sydney, Australia
| | | | | |
Collapse
|