Persistence of depressive symptoms and gait speed recovery in older adults after hip fracture

Association of depressive disorders and dementia with mortality among older people with hip fracture

BACKGROUND

Hip fracture (HF) is a significant cause of mortality among older people. Almost half of the patients with HF have dementia, which increases the mortality risk further. Cognitive impairment is associated with depressive disorders (DDs) and both dementia and DDs are independent risk factors for poor outcome after HF. However, most studies that evaluate mortality risk after HF separate these conditions.

AIMS

To investigate whether dementia with depressive disorders (DDwD) affects the mortality risk at 12, 24, and 36 months after HF among older people.

METHODS

Patients with acute HF (n = 404) were included in this retrospective analysis of two randomized controlled trials performed in orthopedic and geriatric departments. Depressive symptoms were assessed using the Geriatric Depression Scale and cognitive function was assessed using the Mini-Mental State Examination. A consultant geriatrician made final depressive disorder and dementia diagnoses using the Diagnostic and Statistical Manual of Mental Disorders criteria, with support from assessments and medical records. The 12-, 24- and 36-month mortality after HF was analyzed using logistic regression models adjusted for covariates.

RESULTS

In analyses adjusted for age, sex, comorbidity, pre-fracture walking ability, and fracture type, patients with DDwD had increased mortality risks at 12 [odds ratio (OR) 4.67, 95% confidence interval (CI) 1.75-12.51], 24 (OR 3.61, 95% CI 1.71-7.60), and 36 (OR 4.53, 95% CI 2.24-9.14) months. Similar results were obtained for patients with dementia, but not depressive disorders, alone.

CONCLUSION

DDwD is an important risk factor for increased mortality at 12, 24, and 36 months after HF among older people. Routinely assessments after HF for cognitive- and depressive disorders could identify patients at risk for increased mortality, and enable early interventions.

TRIAL REGISTRATION

RCT2: International Standard Randomized Controlled Trial Number Register, trial registration number: ISRCTN15738119.

Prevalence and prognostic significance of depressive symptoms in a geriatric post-hip fracture assessment

OBJECTIVES

To investigate the prevalence and prognostic significance of post-hip fracture depressive symptoms.

METHODS

A naturalistic clinical cohort study. Data were collected on admission to hospital, geriatric assessment 4-6 months post-fracture and by telephone interview one-year post fracture. Depressive symptoms were assessed at the geriatric assessment using the 15-item Geriatric Depression Scale (GDS-15). Logistic regression analyses with multivariable models were conducted to examine the association of depressive symptoms with changes in mobility and living arrangements and Cox proportional hazards models for mortality between the geriatric assessment and one-year follow-up.

RESULTS

Of the 1070 patients, 22% (n = 238) had mild and 6% (n = 67) moderate to severe depressive symptoms. Patients with depressive symptoms had poorer nutritional status at baseline, lower scores on the cognitive and physical performance tests and poorer functional abilities in the geriatric assessment than those without. No association was observed between depressive symptoms and any of the outcomes at one-year follow-up. Poor nutritional status and physical functioning remained significant prognostic indicators.

CONCLUSION

Post-hip fracture depressive symptoms are common and deserve attention during post-hip fracture recovery and rehabilitation. Nonetheless, depressive symptoms have no impact on the change in mobility or living arrangements or mortality. These latter outcomes are mainly explained by poor nutritional status and functioning.

Depressive symptom heterogeneity among older adults after hip fracture

OBJECTIVE

to evaluate patterns of depressive symptoms after hip fracture and examine their impact on functional recovery.

METHODS

participants (n = 304) included older adults from the Baltimore Hip Studies 7th cohort who experienced a hip fracture. Depressive symptoms were measured at baseline or 2-, 6- or 12-month post-hip fracture using the 20-item Center for Epidemiologic Studies Depression scale. Gait speed was measured after hip fracture at 2-, 6- or 12-month follow-up. Latent class analysis was used to identify individuals with similar patterns of depressive symptoms after hip fracture. Item response probabilities characterised symptom profiles, and posterior probability estimates were used to assign participants to a baseline depressive symptom subtype. Weighted estimated equations compared post-fracture gait speed between baseline symptomatic and asymptomatic groups.

RESULTS

four patterns of depressive symptoms were identified: asymptomatic (50.8%), somatic (28.6%), melancholic (11.4%) and anhedonic (9.2%). The somatic subtype was characterised by difficultly concentrating and reduced energy and movement, whereas anhedonic symptoms were associated with the inability to experience pleasure. Melancholic symptoms corresponded to anhedonia, decreased physical activity and other psychological and somatic complaints. Compared with the asymptomatic group, somatic symptoms were consistently associated with slower gait speed, -0.03 metres per second (m/s) and between-group differences for melancholic symptomology were as large as -0.05 m/s, but the associations were not statistically significant.

CONCLUSION

findings demonstrate unique depressive symptom subtypes in older adults after hip fracture and provide confirmatory evidence of unique clinical phenotypes; however, their impact on functional recovery after hip fracture remains unclear.

Differences in geometric strength at the contralateral hip between men with hip fracture and non-fractured comparators

Older men sustain excess bone mineral density (BMD) declines after hip fracture; however, BMD provides no information on mechanical structure and strength. The aim was to assess whether changes in hip bone geometry in older men after hip fracture differ than that expected with aging. Two cohorts were used: Baltimore Hip Studies 7th cohort (BHS-7) and Baltimore Men's Osteoporosis Study (MOST). The sample (N = 170) included older Caucasian men with hip fracture that were propensity score matched (1:1) to community-dwelling non-fractured comparators. Hip Structural Analysis (HSA) calculated aerial BMD and metrics of bone structural strength: cross-sectional bone area (CSA), cortical outer diameter (OD), section modulus (SM), and centroid position (CP). Mixed-effect models estimated changes in HSA parameters and adjusted robust regression models evaluated between-cohort differences in annual percent change at the narrow neck (NN), intertrochanteric (IT), and femoral shaft (FS). Hip fracture was associated with statistically greater declines in NN CSA (β = -2.818; 95% CI: -3.300%, -2.336%), SM (β = -1.896%; 95% CI: -2.711%, -1.080%) and CP (β = -0.884%; 95% CI: -0.889%, -0.880%) and significantly larger increases in NN OD (β = 0.187%; 95% CI: 0.185%, 0.190%). Differences in IT HSA parameters were like the NN but larger in magnitude, while there were favorable changes in FS geometry where fragility fractures are rare. Findings indicate there are declines in bone structure and strength at the NN and IT regions of the proximal femur in older men during hip fracture recovery that far exceed what occurs during normal aging.

Functional Outcomes After Muscle-Sparing Fixation of Flail Chest Injuries

OBJECTIVES

To present outcomes in a multicenter review of a large number of flail chest patients.

DESIGN

Retrospective case series.

SETTING

One urban Level I and 1 urban Level II trauma center.

PATIENTS/PARTICIPANTS

Fifty-two adult patients who underwent treatment of their flail chest injury with locking plate and screw constructs through muscle-sparing approaches, followed for a minimum of 1 year postoperatively.

RESULTS

All patients went on to successful union, with complication rates in line with recent published norms. Periscapular strength returned to greater than 90% of the noninjured side by 3 months postoperatively and to within a mean of 95% of the noninjured side by 6 months postoperatively. Glenohumeral range of motion similarly improved over this same interval.

CONCLUSIONS

Use of anatomically designed modern locking plate and screw fixation constructs with muscle-sparing approaches results in efficient return to function and restoration of shoulder function and strength as compared with the noninjured shoulder.

LEVEL OF EVIDENCE

Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.

Pain severity as a mediator of the association between depressive symptoms and physical performance in knee osteoarthritis

OBJECTIVE

Depressive symptoms in knee osteoarthritis (OA) are associated with increased pain severity and declines in physical performance. This study examined whether pain severity mediates the association between depressive symptoms and physical performance in persons with radiographic knee OA.

METHOD

Three years of annual data from participants (n = 1,463) with radiographic knee OA in the Osteoarthritis Initiative (OAI) were analyzed. Depressive symptoms were measured using the Center for Epidemiological Studies Depression (CES-D) scale. Pain severity was evaluated with the Western Ontario and McMaster Universities Arthritis Index. Physical performance was assessed via standardized gait speed. Marginal structural models were used to assess the direct (unmediated) effects of depressive symptoms on physical performance and indirect (mediated) effects through pain severity.

RESULTS

Direct and indirect effects for a difference in CES-D score of 0-1 were -0.0051 (95% confidence intervals (CI): -0.0053, -0.0049) and -0.0016 (95% CI: -0.0024, -0.0007) standard deviations in gait speed, respectively. Higher depressive symptom severity exhibited diminishing, incremental, direct and indirect effects and for a difference in CES-D score of 15-16 were -0.0045 (95% CI: -0.0047, -0.0042) and -0.0009 (95% CI: -0.0014, -0.0004) standard deviations in gait speed, respectively. Therefore, the magnitude of the mediated, indirect effect, was never larger than 24%.

CONCLUSION

Pain severity mediated approximately one-fifth of the association between depressive symptoms and physical performance in persons with radiographic knee OA, and the diminishing incremental effects may explain why unimodal treatment strategies with a single disease target are often ineffective in depressed OA patients.