Faculty Bibliography

Objective: The frequency of self reported sexual difficulties was examined in a group of 322 individuals with traumatic brain injury (TBI) ($N = 193$ men; 129 women) and contrasted with reports of sexual difficulties in 264 individuals without disability (152 men; 112 women) residing in the community. Physiological, physical, and body images problems impacting sexual functioning were examined individually and then summed into a sexual dysfunction score. Mood, quality of life, health status and presence of an endocrine disorder were examined as predictors of sexual difficulties post TBI. Study design: In this retrospective study, data about sexual difficulties were analyzed separately for men and women with TBI and without disability. ANOVAs with post hoc analysis for continuous variables, chi-square analyses for categorical variables, and ANCOVAs for predictors of sexual difficulties were utilized. Results: When contrasted to individuals without disability, individuals with TBI reported more frequent: (1) physiological difficulties influencing their energy for sex, sex drive, ability to initiate sexual activities and achieve orgasm; (2) physical difficulties influencing body positioning, body movement and sensation, and (3) body image difficulties influencing feelings of attractive and comfort with having a partner view one's body during sexual activity. Additional gender specific TBI findings were observed. In comparison to gender matched groups without disability, men with TBI reported less frequent involvement in sexual activity and relationships, and more frequent difficulties in sustaining an erection; women with TBI reported more frequent difficulties in sexual arousal, pain with sex, masturbation and vaginal lubrication. While groups differed in core demographic variables, age was the only demographic variable that was related to reports of sexual difficulties in individuals with TBI and men without disability. Age at onset and severity of injury were negatively related to reports of sexual difficulties in individuals with TBI. In men with TBI and without disability, the most sensitive predictor of sexual dysfunction was level of depression. For women without disability, an endocrine disorder was the most sensitive predictor of sexual dysfunction. For women with TBI, an endocrine disorder and level depression combined were the most sensitive predictors of sexual difficulties. Conclusion: Individuals post TBI report frequent physiological, physical and body images difficulties which negatively impact sexual activity and interest. For men post TBI, predictors of sexual difficulties included age at interview, age at injury, and having milder injuries, however, depression was the most sensitive predictor of sexual dysfunctions. For women post TBI, predictors of their sexual difficulties included age at injury and having milder injuries, however, depression and an endocrine disorder combined were the most sensitive predictors of sexual dysfunction. Implications of this study include the need for broad-based assessment of sexual dysfunction, and the implementation of treatment studies to enhance sexual functioning post TBI

Mild traumatic brain injury (MTBI) is a common condition, afflicting as many as 1.5 million Americans yearly. Most individuals sustain MTBI as a result of motor vehicle collisions, but it may also occur as a result of falls, physical assault or sporting accidents. Problems related to MTBI include various pain syndromes, cognitive impairments, disorders of affect, cranial nerve dysfunction, and vertigo, arising from injury to the brain, head, or cervical spine. Symptoms are usually transient, although a small percentage of afflicted individuals develop long-lasting problems, often preventing them from leading productive lives. Recognition of these problems as arising from MTBI is difficult due to the frequent lack of abnormal findings on diagnostic tests and failure to identify a history of head trauma. The American Congress of Rehabilitation Medicine has defined MTBI, an important first step in identifying individuals who need treatment. Diagnosis is usually made by directed questions regarding trauma history and careful procurement and interpretation of appropriate tests. Once a diagnosis is made, proper care can be prescribed in order to lead patients toward more productive lives

OBJECTIVE: To demonstrate that after spinal cord injury (SCI) suppression of the parathyroid-vitamin D axis is associated with the degree of neurologic impairment and not the level of injury. DESIGN: A retrospective analysis of clinical and biochemical data obtained from hospital records of patients with SCI compared to a control group of patients with traumatic brain injury (TBI). SETTING: The inpatient rehabilitation unit of a tertiary care hospital. SUBJECTS: The medical records of 82 consecutive admissions to the rehabilitation unit with a diagnosis of SCI or TBI were reviewed. Patients with SCI were classified by the American Spinal Injury Association (ASIA) impairment scale and then grouped based on the completeness and level of injury. MAIN OUTCOME MEASURE: Comparisons of serum parathyroid hormone (PTH), 25-hydroxyvitamin D, and 1,25-dihydroxyvitamin D (1,25-D) were planned. Multiple comparisons were performed for total and ionized serum calcium levels, serum phosphorus levels, and 24-hour urinary calcium excretion rates to reflect changes in mineral homeostasis. Multiple comparisons were also performed for serum albumin, prolactin, thyroid function tests, and AM cortisol levels, as well as 24-hour urinary urea nitrogen and cortisol excretion rates to reflect metabolic responses to stress. RESULTS: Patients with SCI had significant suppression in PTH (p < .000009) and 1,25-D (p < .02) levels with elevated phosphorus (p < 0.03) and prolactin (p < .03) levels compared to patients with TBI. Also, more patients with SCI were hypoalbuminemic (p < .003) than patients with TBI. Patients with complete SCI (ASIA A) had more suppressed PTH (p < .03) and higher urinary urea nitrogen (p < .05) levels than SCI patients with incomplete injuries (ASIA B-D). Patients with complete, but not incomplete, SCI had lower albumin levels than patients with TBI (p < .05). These differences were not found between patients with tetraplegic and paraplegic SCI. ASIA motor scores did not correlate with any of the measured parameters but when used as a covariate did abolish differences in PTH and 1,25-D among the study groups by ANOVA. CONCLUSION: In patients with SCI, the degree of neurologic impairment, and not the level of injury, is associated with PTH suppression and markers of metabolic stress

Older patients who are referred for rehabilitation after undergoing orthopaedic procedures have numerous age-related conditions that may interfere with physical performance and safety. The general rehabilitation goals are to return each patient to the premorbid functional level of mobility and self-care, teach the exercises that are to be performed after hospital discharge, reduce the risk of falls, and ensure that the patient is discharged to a safe environment. Before elective surgery, the elderly orthopaedic patient should be instructed to perform breathing exercises to prevent pulmonary complications and active lower limb exercises to maintain good circulation and joint mobility, and be instructed in functional activities for mobilization in and out of bed. Postoperatively, the interdisciplinary rehabilitation team must facilitate early resumption of active exercises and self-care tasks and discourage prolonged bed rest and dependency on nursing staff and family members. Physical and occupational therapy should be provided to restore mobility and self-care functions. If discharge to home is planned, the home environment should be assessed and modifications recommended to reduce the risk of falls and ensure independent functioning to the extent possible. When the rehabilitation goals have been obtained, the patient should be discharged from the hospital, but additional therapy may be required, either at home or at an outpatient facility

The influence of the activities of daily living on human growth hormone (hGH) release and plasma insulin-like growth factor (IGF-I) levels is not known. Individuals with spinal cord injury (SCI) and paralysis generally have reduced levels of activity compared with ambulatory subjects. We studied sixteen subjects with SCI and sixteen nonSCI subjects matched for age, gender and body mass index (BMI) as controls. After an intravenous infusion of arginine hydrochloride (30 g/subject over 30 minutes), mean plasma hGH values at 30 and 60 minutes were significantly lower in the group with SCI compared with the control group (3.4 +/- 0.7 versus 10.7 +/- 2.5 ng/ml, p < 0.01; and 5.2 +/- 1.5 versus 12.5 +/- 2.7 ng/ml, p < 0.05). Also, peak and sum hGH responses were significantly lower in the group with SCI than in the control group (5.8 +/- 1.5 versus 14.1 +/- 2.8 ng/ml, p < 0.01; and 15.2 +/- 3.1 versus 34.8 +/- 7.2 ng/ml, p < 0.02). Controlling for age and BMI, the results remained significant. However, the mean plasma IGF-I level was significantly lower in SCI subjects younger than 45 years old than in the similar subgroup of age-restricted controls (202 +/- 19 versus 324 +/- 27 ng/ml, p < 0.05), whereas, a comparison of subgroups of subjects 45 years or older did not reveal a significant difference. These findings support the hypothesis that decreased daily physical activity results in depression of the hGH/IGF-I axis in younger individuals with SCI and may be considered to be a state of premature aging.(ABSTRACT TRUNCATED AT 250 WORDS)