Long-term effects of spinal cord injury on sexual function in men: implications for neuroplasticity

Lived Experiences of Sexuality and Sexual Functioning in Males with SCI: A Mixed-Methods Study

Background

Sexual dysfunction is highly prevalent in males with spinal cord injury (SCI) and has been recognized to be a key recovery priority.

Objectives

This cross-sectional, mixed-methods study aimed to investigate the major themes linked to sexual functioning in males with chronic (>1 year) SCI.

Methods

Twenty male participants with SCI, aged 25 to 59 years, completed validated questionnaires exploring sexual function/satisfaction and health-related quality of life and a semi-structured interview with an experienced sexual medicine physician. Sex hormone concentrations and metabolic biomarkers, along with body composition and habitual physical activity levels, were assessed. Interview recordings were transcribed and thematic analysis performed using combined COM-B (Capability, Opportunity, Motivation, and Behavior) and biopsychosocial models to identify and organize major contributors and barriers to sexual functioning.

Results

Metabolic and hormonal biomarkers largely fell within normal physiological ranges despite reduced sexual functioning reported in our cohort (19/20 participants reported some degree of erectile dysfunction). Qualitative analysis of interview transcripts revealed 24 themes. Adaptability was important for improving sexual satisfaction. Attraction and attentiveness to sex and partners remained stable over time, while the desire for intimacy increased post injury. Sexual social norms, and comparisons to the able-bodied population, provided challenges for sexual activity and partnership. Environmental concerns regarding access to sexual health resources and accessible physical spaces during intimacy were relevant. Mood disorders and general life stressors negatively impacted sexual desire, while physical activity encouraged sexual activity.

Conclusion

By considering a holistic view of sexuality in males with SCI, we identified key contributors and barriers to sexual functioning for the cohort studied.

Looking Beyond the Chair: Psycho-Perceptual Predictors of Sexual Distress and Sexual Satisfaction in Individuals with Spinal Cord Injury

Despite a large body of biomedical research, little is known about the psychological and perceptual predictors of sexual satisfaction (SS) and sexual distress (SD) post spinal cord injury (SCI). Guided by a bio-psycho-perceptual framework, this cross-sectional research aimed at assessing SS and SD in a large SCI sample using validated patient-reported outcome measures (PROM). Significant correlates and predictors of SS and SD were also identified. Ninety-one men and women with SCI completed PROMs of SS and SD, as well as psychological (mood, sexual and body esteem) and perceptual (interoceptive awareness, trait mindfulness, sexual mindfulness) factors. Neurological profiles were also assessed, along with experience of orgasm. Correlates of SS and SD were first identified using Pearson's correlations, then multiple hierarchical regression models were computed to isolate predictors. Orgasm experience and psychological factors emerged as moderate correlates of both SS and SD, while neurological factors did not. Interoceptive awareness and trait mindfulness showed weak associations with SD and none with SS. Among the tested predictors, experience of orgasm emerged as the strongest for SS (β = -.29, p < .01), followed by mood, which predicted SS and SD. Sexual and body esteem was predictive of SD only. In sexually active participants, sexual mindfulness predicted both SS (β = 0.55, p < .001) and SD (β = -0.56, p < .001) above and beyond all other variables. This study reveals unique aspects of SS and SD postinjury and supports further consideration of psychological and perceptual dimensions of SCI sexuality in rehabilitation research.

[Identification and Prioritization of Research Questions on Paraplegia Caused by Traumatic Spinal Cord Injury with Those Affected, Their Relatives and Health Care Professionals]

BACKGROUND

Objective With expertise based on experience, paraplegics, their relatives and health care professionals can contribute to the development of research questions relevant for those affected and those in health care practice. For this purpose, the James Lind Alliance (JLA) has provided a methodological approach. The aim of this study was to develop a research agenda for paraplegia resulting from traumatic spinal cord injury with an adapted JLA approach.

METHODS

Four consecutive online surveys of people with paraplegia caused by traumatic spinal cord injury, their relatives and caregivers were conducted. In the first survey, the respondents freely formulated research questions unanswered from their point of view. These were synthesized and checked to see if they can already be answered by available evidence. The unresolved questions were prioritized stepwise in the subsequent surveys. In the second survey, the relevance of questions was rated on a five-point rating scale (1-5). Questions with a mean value of 4 or higher were taken up in the third survey, in which the 10 most relevant questions were determined. These were ranked in the fourth survey as a top-10 list.

RESULTS

Based on the first survey (n=52), 38 unresolved research questions were identified. Of these, 26 questions were rated as important (2nd survey; n=53), from which 10 questions were selected (3rd survey; n=17) and ranked (4th survey; n=12) as a top-10 list. Four prioritized questions related to treatment of spinal cord injury or associated health issues, three to aspects of the health care system with regard to assistive devices and the implementation of new therapies, two to possibilities of those affected to improve their own situation, and one to research on the course of disease.

CONCLUSIONS

Nine priorities focus on research that could help improve the life and health care situation of paraplegic patients and one on curative treatment. The prioritized questions should be taken up by researchers and research funders for the benefit of patients and to help health care providers. For some priorities, a need for research was consistently identified in present guidelines or systematic reviews.

Consequences of spinal cord injury on the sympathetic nervous system

Spinal cord injury (SCI) damages multiple structures at the lesion site, including ascending, descending, and propriospinal axons; interrupting the conduction of information up and down the spinal cord. Additionally, axons associated with the autonomic nervous system that control involuntary physiological functions course through the spinal cord. Moreover, sympathetic, and parasympathetic preganglionic neurons reside in the spinal cord. Thus, depending on the level of an SCI, autonomic function can be greatly impacted by the trauma resulting in dysfunction of various organs. For example, SCI can lead to dysregulation of a variety of organs, such as the pineal gland, the heart and vasculature, lungs, spleen, kidneys, and bladder. Indeed, it is becoming more apparent that many disorders that negatively affect quality-of-life for SCI individuals have a basis in dysregulation of the sympathetic nervous system. Here, we will review how SCI impacts the sympathetic nervous system and how that negatively impacts target organs that receive sympathetic innervation. A deeper understanding of this may offer potential therapeutic insight into how to improve health and quality-of-life for those living with SCI.

Restoration of the penile sensory pathway through end-to-side dorsal root neurorrhaphy in rats

Objective: Spinal cord injury often leads to the loss of penile sensation, and severely affects the individual's sexual function. The present study aimed to restore the penile sensory pathway through end-to-side dorsal root (DR) transfer neurorrhaphy in rats, and preliminarily verified the feasibility of the operation.Design: 40 male adult Sprague-Dawley rats were divided into three groups. In the model (n = 20) and resection (n = 10) groups, the right L6 DR, S1 DR, and the contralateral branch of the dorsal nerve of the penis (DNP) were transected. The distal stump of L6 DR in the model group was then anastomosed to the intact L4 DR. The sham group (n = 10) was not subjected to neural damage. Four months later, retrograde and transganglionic neural labeling, morphological examination, immunofluorescence (IF), and ultrastructural observation were carried out to test the reconstruction of the afferent pathway. Reflective erection (RE) was assessed by detecting the intracavernous pressure elicited by DNP stimulation.Results: The neural labeling tests indicated the integrity of the entire rebuilt penile afferent pathway. The morphological studies, IF, and ultrastructural observation showed that the regeneration of L6 axons in the model group was significantly better than that in the resection group; however, it had not reached the level of the sham group. The sham group rats exhibited typical RE following DNP stimulation, while the model and resection groups produced negative results.Conclusion: Our studies demonstrated the feasibility of end-to-side DR transfer neurorrhaphy for restoring the penile sensory pathway in rats.

Spinal Cord Injury Causes Reduction of Galanin and Gastrin Releasing Peptide mRNA Expression in the Spinal Ejaculation Generator of Male Rats

Spinal cord injury (SCI) in men is commonly associated with sexual dysfunction, including anejaculation, and chronic mid-thoracic contusion injury in male rats also impairs ejaculatory reflexes. Ejaculation is controlled by a spinal ejaculation generator consisting of a population of lumbar spinothalamic (LSt) neurons that control ejaculation through release of four neuropeptides including galanin and gastrin releasing peptide (GRP) onto lumbar and sacral autonomic and motor nuclei. It was recently demonstrated that spinal contusion injury in male rats caused reduction of GRP-immunoreactivity, but not galanin-immunoreactivity in LSt cells, indicative of reduced GRP peptide levels, but inconclusive results for galanin. The current study further tests the hypothesis that contusion injury causes a disruption of GRP and galanin mRNA in LSt cells. Male rats received mid-thoracic contusion injury and galanin and GRP mRNA were visualized 8 weeks later in the lumbar spinal cord using fluorescent in situ hybridization. Spinal cord injury significantly reduced GRP and galanin mRNA in LSt cells. Galanin expression was higher in LSt cells compared to GRP. However, expression of the two transcripts were positively correlated in LSt cells in both sham and SCI animals, suggesting that expression for the two neuropeptides may be co-regulated. Immunofluorescent visualization of galanin and GRP peptides demonstrated a significant reduction in GRP-immunoreactivity, but not galanin in LSt cells, confirming the previous observations. In conclusion, SCI reduced GRP and galanin expression in LSt cells with an apparent greater impact on GRP peptide levels. GRP and galanin are both essential for triggering ejaculation and thus such reduction may contribute to ejaculatory dysfunction following SCI in rats.

Restoration of Penile Sensation Through Neurological Bypass in Rats

OBJECTIVE

To explore the feasibility of the penile afferent pathway by the cutaneous branch of the genitofemoral nerve to the dorsal nerve of penile transfer in rats.

METHODS

A total of 54 male rats were randomly divided into model group (n = 18), resection group (n = 18), and sham group (n = 18). In the model group, the distal stump of bilateral DNP was anastomosed to the proximal stump of the bilateral CGN through end-to-end neurorrhaphy. In the resection group, bilateral DNP was severed and ligated, and no end-to-end anastomosis was performed. Only a surgical incision was made in the sham group, and no nerve injury was caused. After the operation, the feasibility of reconstructing the penile afferent pathway was explored by fluorescent-gold retrograde neural labeling. The intracavernous pressure assessment was then carried out. The morphological examination, histological staining of nerves, and ultrastructural observation were performed accordingly.

RESULTS

Fluorescent-gold labeled L1 and L2 neurons in the model group were positive. The mean ICP in the model group was (12.02 ± 2.03 mmHg), which is higher than the mean value in the resection group (0 mmHg, P < .05) but lower than that in the sham group (36.95 ± 5.33 mmHg; P < .05). The morphological studies, HE, and ultrastructure observation revealed that the regeneration of DNP axons in the model group was significantly better than that in the resection group yet did not reach the level of the sham group.

CONCLUSION

This experiment preliminarily proved the feasibility of restoration of the penile afferent pathway by CGN to DNP transfer in Rats.

Neurogenic Erectile Dysfunction. Where Do We Stand?

Erectile Dysfunction (ED) is the persistent inability to attain and maintain an erection sufficient to permit satisfactory sexual performance, causing tremendous effects on both patients and their partners. The pathophysiology of ED remains a labyrinth. The underlying mechanisms of ED may be vasculogenic, neurogenic, anatomical, hormonal, drug-induced and/or psychogenic. Neurogenic ED consists of a large cohort of ED, accounting for about 10% to 19% of all cases. Its diversity does not allow an in-depth clarification of all the underlying mechanisms nor a “one size fits all” therapeutical approach. In this review, we focus on neurogenic causes of ED, trying to elucidate the mechanisms that lie beneath it and how we manage these patients.

Kinematic analysis of penile reflexes in a rat model of spinal cord injury

The ex-copula penile dorsiflexion reflex (PDFR) is an established measure of sexual dysfunction in male rat models of spinal cord injury. Although the PDFR after complete spinal transection is well described, information regarding the more clinically relevant incomplete spinal contusion injury model is limited. This study examined, using two-dimensional (2D) kinematic analysis, the relationship between the PDFR and degree of white matter sparing (WMS). Male Wistar rats received a T9 contusion with varying degrees of impactor forces. Weekly kinematic recordings of the PDFR were made 3–8 weeks postinjury. Sexual reflex components examined included maximum angle of penile dorsiflexion, total penile event duration, and penile ascent speed. Post hoc comparison between animals grouped based upon injury severity (moderate–severe: 13.33%–17.15% WMS vs moderate: 20.85%–33.50% WMS) indicated PDFR effects. Specifically, the numbers of animals with more moderate contusions having data points above the median in both maximum angle of penile dorsiflexion and penile ascent speed were significantly lower than animals with more severe injuries. Total penile event duration was also affected but only at more chronic time points (6–8 weeks). Thus, 2D kinematic analysis of the PDFR allows for more consistent and quantifiable analysis of the subtle differences that can occur between injury severity groups in the rat contusion model.

Effect of Different Forms of Activity-Based Recovery Training on Bladder, Bowel, and Sexual Function After Spinal Cord Injury

OBJECTIVES

To investigate whether the urogenital and bowel functional gains previously demonstrated post-locomotor step training after chronic spinal cord injury could have been derived due to weight-bearing alone or from exercise in general.

DESIGN

Prospective cohort study; pilot trial with small sample size.

SETTING

Urogenital and bowel scientific core facility at a rehabilitation institute and spinal cord injury research center in the United States.

PARTICIPANTS

Men and women (N=22) with spinal cord injury (American Spinal Injury Association Impairment Scale grades of A-D) participated in this study.

INTERVENTIONS

Approximately 80 daily 1-hour sessions of either stand training or nonweight-bearing arm crank ergometry. Comparisons were made with previously published locomotor training data (step; N=7).

MAIN OUTCOME MEASURES

Assessments at both pre- and post-training timepoints included cystometry for bladder function and International Data Set Questionnaires for bowel and sexual functions.

RESULTS

Cystometry measurements revealed a significant decrease in bladder pressure and limited improvement in compliance with nonweight-bearing exercise but not with standing. Although International Data Set questionnaires revealed profound bowel dysfunction and marked deficits in sexual function pretraining, no differences were identified poststand or after nonweight-bearing exercise.

CONCLUSIONS

These pilot trial results suggest that, although stand and weight-bearing alone do not benefit pelvic organ functions after spinal cord injury, exercise in general may contribute at least partially to the lowering of bladder pressure and the increase in compliance that was seen previously with locomotor training, potentially through metabolic, humoral, and/or cardiovascular mechanisms. Thus, to maximize activity-based recovery training benefits for functions related to storage and emptying, an appropriate level of sensory input to the spinal cord neural circuitries controlling bladder and bowel requires task-specific stepping.

Male genital sensation after spinal cord injury: a review

Genital sensation (GS) is an essential component of male sexual function. Genital sensory disturbance (GSD) caused by spinal cord injury (SCI) has a severe impact on the patients' sexual function but has garnered little research focus. Under normal conditions, GS encompasses the erection, ejaculation, sexual arousal, and orgasm courses associated with physiological and psychological responses in male sexual activity. However, in SCI patients, the deficiency of GS makes the tactile stimulation of the penis unable to cause sexual arousal, disturbs the normal processes of erection and ejaculation, and decreases sexual desire and satisfaction. To provide an overview of the contemporary conception and management of male GS after SCI, we review the innervation and sexual function of male GS in this article, discuss the effects of GSD following SCI, and summarize the current diagnosis and treatment of GSD in male SCI patients.

Telemetric monitoring of penile pressure during mating in rats after chronic spinal cord injury

In men with a spinal cord injury (SCI), erectile function, ejaculation, and fertility are severely impaired. The present study utilized a telemetric pressure transducer implanted into the corpus cavernosum of the penis to examine sexual function during awake mating behavior in a rat contusion model with a range of Infinite Horizon Impactor forces distributed between 150 and 215 kdyn. The mating behavior paradigm included examination of the counts, average pressure, and average duration for mounts, intromissions, and ejaculations. Male Wistar rats were mated with receptive females in 30-min sessions preinjury (sexual acclimation) and once per week for 6 wk beginning after a 2-wk recovery period post-SCI. All SCI animals had significant deficits in sexual function in the parameters measured. These deficiencies were more prevalent in a subset having less than 20% white matter sparing, likely a reflection of the extent of bilateral spino-bulbo-spinal sexual circuitry disruption at the lesion epicenter. The resulting discoordination of the autonomic and somatic reflex control of erection and ejaculation recorded using telemetry devices in an awake, behaving animal model provides an effective means of gauging sexual function deficits after SCI and could have utility for quantifying recovery after a therapeutic intervention.

Predictive Factors of Male Sexual Dysfunction After Traumatic Spinal Cord Injury

STUDY DESIGN

Observational study (Ethics Committee Number 973.648).

OBJECTIVE

Evaluating the social and clinical factors associated with sexual dysfunction in men with traumatic spinal cord injury, as well as predictive factors for sexual dysfunction.

SUMMARY OF BACKGROUND DATA

Besides the motor and sensory loss, sexual function changes after spinal cord injury, ranging from decreased sexual desire to erectile disorders, orgasm, and ejaculation.

METHODS

Performed with 45 men, with traumatic spinal cord injury and sexually active. Sexual function was assessed by the International Index of Erectile Function and the level and degree of injury were determined following guidelines of International Standards for Neurological and Functional Examination Classification of Spinal Cord Injury. Bi and multivariate analysis was applied, with a 0.05 significance level.

RESULTS

Forty-five subjects with mean injury time of 7.5 years (CI 5.2-9.9) were evaluated. Having a fixed partner is a protective factor (OR: 0.25; 95% CI: 0.07-0.92) of erectile dysfunction. Sexual desire is associated with the fixed partner (OR: 0.12; 95% CI: 0.02-0.66), masturbation (OR: 0.13; 95% CI: 0.02-0.62), and sexual intercourse in the last month (OR: 0.13; 95% IC: 0.01-0.92). Ejaculation (OR: 0.01; 95% CI: 0.00-0.15) and erectile dysfunction (OR: 15.7; 95% CI: 1.38-178.58) are associated with orgasm. Psychogenic erection (OR: 0.07; 95% CI: 0.01-0.69), monthly frequency of sexual intercourse (OR: 11.3; 95% CI: 2.0-62.8), and orgasmic dysfunction (OR: 7.1; 95% CI: 1.1-44.8) are associated with satisfaction.

CONCLUSION

Fixed partner, ejaculation, masturbation are protective factors for sexual dysfunction. Erectile dysfunction, orgasmic, and infrequent sex dysfunction are predictors of sexual dysfunction.

LEVEL OF EVIDENCE

3.

Electrical Colon Stimulation Reflexively Increases Colonic Activity

OBJECTIVES

Most individuals with spinal cord injury have neurogenic bowel dysfunction, which includes slowed colonic motility and has a significant impact on their health and quality of life. Bowel management typically includes mechanical rectal distension to evoke a recto-colic reflex and promote bowel emptying. Electrical stimulation could replace this mechanical distension. The purpose of this study was to determine the feasibility of evoking colonic activity using electrical stimulation.

MATERIALS AND METHODS

Acute experiments were conducted in eight neural-intact cats under chloralose anesthesia. Patterned electrical stimulation was administered via electrodes placed on the surface of the distal colon or proximal colon. Distal and proximal colon pressures were measured using saline-filled balloon catheters. Outcome measures included peak colonic pressure; time to onset of response; and time to peak pressure compared to baseline without stimulation.

RESULTS

Stimulation elicited colonic activity in all animals. Peak colon pressures were 15 ± 28 cmH₂ O and were proportional to stimulation amplitudes. Time to onset and time to peak pressure were 13 ± 19 s and 37 ± 49 s, respectively, and were not significantly affected by stimulus parameters. Proximal colon stimulation only resulted in pressure responses from the proximal colon, but distal colon stimulation resulted in both proximal and distal responses in 40% of trials. Adding isoflurane anesthesia removed this proximal response to distal stimulation.

CONCLUSIONS

Distal colon stimulation evoked colonic activity. The dependence of this response on stimulation location and anesthesia suggests that responses were reflex mediated. Colonic stimulation may have the potential to improve colonic motility for individuals with neurogenic bowel dysfunction.

Chronic Spinal Cord Injury Reduces Gastrin-Releasing Peptide in the Spinal Ejaculation Generator in Male Rats

Spinal cord injury (SCI) causes sexual dysfunction, including anejaculation in men. Likewise, chronic mid-thoracic contusion injury impairs ejaculatory reflexes in male rats. Ejaculation is controlled by a spinal ejaculation generator (SEG) comprised of a population of lumbar spinothalamic (LSt) neurons. LSt neurons co-express four neuropeptides, including gastrin-releasing peptide (GRP) and galanin and control ejaculation via release of these peptides in lumbar and sacral autonomic and motor nuclei. Here, we tested the hypothesis that contusion injury causes a disruption of the neuropeptides that are expressed in LSt cell bodies and axon terminals, thereby causing ejaculatory dysfunction. Male Sprague Dawley rats received contusion or sham surgery at spinal levels T6-7. Five to six weeks later, animals were perfused and spinal cords were immunoprocessed for galanin and GRP. Results showed that numbers of cells immunoreactive for galanin were not altered by SCI, suggesting that LSt cells are not ablated by SCI. In contrast, GRP immunoreactivity was decreased in LSt cells following SCI, evidenced by fewer GRP and galanin/GRP dual labeled cells. However, SCI did not affect efferent connections of LSt, cells as axon terminals containing galanin or GRP in contact with autonomic cells were not reduced following SCI. Finally, no changes in testosterone plasma levels or androgen receptor expression were noted after SCI. In conclusion, chronic contusion injury decreased immunoreactivity for GRP in LSt cell soma, but did not affect LSt neurons per se or LSt connections within the SEG. Since GRP is essential for triggering ejaculation, such loss may contribute to ejaculatory dysfunction following SCI.

Activity-Based Training Alters Penile Reflex Responses in a Rat Model of Spinal Cord Injury

INTRODUCTION

Multisystem functional gains have been reported in males with spinal cord injury (SCI) after undergoing activity-based training (ABT), including increases in scoring of sexual function and reports of improved erectile function.

AIM

This study aims to examine the effect of daily 60-minute locomotor training and exercise in general on sexual function in a rat SCI contusion model.

METHODS

Male Wistar rats received a T9 contusion SCI. Animals were randomized into 4 groups: a quadrupedal stepping group (SCI + QT), a forelimb-only exercise group (SCI + FT), a non-trained harnessed group (SCI + NT), and a home cage non-trained group (SCI + HC). The 2 non-trained groups were combined (SCI) post hoc. Daily training sessions were 60 minutes in duration for 8 weeks. Urine samples were collected during bi-weekly 24-hour metabolic cage behavioral testing. Latency, numbers of penile dorsiflexion, and glans cupping were recorded during bi-weekly penile dorsiflexion reflex (PDFR) testing. Terminal electromyography (EMG) recordings of the bulbospongiosus muscle (BSM) were recorded in response to stimulation of the dorsal nerve of the penis (DNP).

OUTCOMES

ABT after SCI had a significant effect on PDFR, as well as BSM EMG latency and burst duration.

RESULTS

SCI causes a significant decrease in the latency to onset of PDFR. After 8 weeks of ABT, SCI + QT animals had a significantly increased latency relative to the post-SCI baseline. BSM EMG response to DNP stimulation had a significantly decreased latency and increase in average and maximum amplitude in SCI + QT animals. SCI animals had a significantly longer burst duration than trained animals. Time between PDFR events, penile dorsiflexion, glans cupping, and urine testosterone were not affected by ABT.

CLINICAL IMPLICATIONS

ABT has a positive influence on sexual function and provides a potential therapy to enhance the efficacy of current sexual dysfunction therapies in the male SCI population.

STRENGTHS AND LIMITATIONS

Several significant small improvements in sexual function were found in a clinically relevant rat model of SCI using a readily available rehabilitative therapy. The limited findings could reflect insensitivity of the PDFR as a measure of erectile function.

CONCLUSIONS

These results indicate that task-specific stepping and/or loading provide sensory input to the spinal cord impacting the neural circuitry responsible for sexual function. Steadman CJ, Hoey RF, Montgomery LR, et al. Activity-Based Training Alters Penile Reflex Responses in a Rat Model of Spinal Cord Injury. J Sex Med 2019; 16:1143-1154.

Improving Sexual Function by Using Focal Vibrations in Men with Spinal Cord Injury: Encouraging Findings from a Feasibility Study

Erectile dysfunction (ED) is a frequent and disabling condition in patients with spinal cord injury (SCI). Spasticity can negatively affect sexual intercourse, as it may interfere with positioning, mobility, and muscle activation and strength, leading to ED. The aim of our study was to evaluate the feasibility and efficacy of muscle vibration (MV) applied to the pelvic muscles in improving ED in men with SCI. Ten adult men with traumatic SCI were submitted to 15 sessions of MV, applied on the perineum and the suprapubic and sacrococcygeal areas, using a pneumatic vibrator. MV was performed three times a week for five consecutive weeks, each session lasting 30 min. Muscle tone and sexual function were assessed before and after MV using the Modified Ashworth Scale (MAS) and International Index of Erectile Function (IIEF). We assessed the cremasteric and bulbocavernosus reflexes, as well as the electrophysiological bulbocavernosus reflex (eBCR) and pudendal nerve somatosensory-evoked potential (PSEP). MV was safe and well tolerated. All the patients reported an improvement in MAS and IIEF, with better reflexive responses, and a significant increase in eBCR and PSEP amplitude. In conclusion, MV of the pelvic floor is a promising method to reduce segmental spasticity and improve ED in men with incomplete SCI. However, our findings require confirmation through a randomized clinical trial with a larger sample size and longer trial period to examine long-term after effects.

A Multidisciplinary Approach to Sexual and Fertility Rehabilitation: The Sexual Rehabilitation Framework

Many studies have identified improvement in sexual function as a priority for persons with spinal cord injury (SCI). Due to the various secondary sensory, motor, and autonomic consequences following SCI and due to the complexity of sexuality per se, this area can be overwhelming to many health care professionals. The literature indicate that sexual and fertility rehabilitation must be addressed in a biopsychosocial manner and include various disciplines. The multidisciplinary utilization of a Sexual Rehabilitation Framework (SRF) allows the medical and/or psychosocial factors that impede or improve sexual and reproductive function to be examined. The SRF is a user-friendly and simplified way to proactively address the major biopsychosocial areas of sexuality and to create a plan of action for the person with SCI. It is an adjunct tool to the full sexual history, and it encourages all disciplines involved in SCI rehabilitation to address the issue of sexual function in the same manner as they would other activities of daily living. Eight areas are included in the SRF: sexual drive/interest, sexual functioning, fertility and contraception, factors associated with the condition, motor and sensory influences, bladder and bowel influences, sexual self-view and self-esteem, and partnership issues. The use of the SRF is encouraged in both inpatient and outpatient settings. Multidisciplinary or interdisciplinary team work is encouraged in sexual and fertility rehabilitation to move clinicians toward providing proactive and comprehensive care for individuals with SCI or other chronic disabilities.

[Sexual life quality of spinal cord-injured men receiving pharmacological treatment for erectile dysfunction and their partners]

OBJECTIVE

To assess the quality of sexual life reported by spinal cord-injured men treated with oral drugs for erectile dysfunction (ED) and their female partners.

MATERIAL AND METHOD

Men with spinal cord injuries (SCI) complaining of ED and their female partners were evaluated using the Sexual Life Quality Questionnaire (SLQQ), a fully validated instrument in Spain. Two studies were conducted. A transversal study (1) on patients who were already on treatment with phosphodiesterase type 5 inhibitors (PDE5Is) and their partners, with 73 couples providing valid data. An additional prospective study (2) assessed SCI patients naive to PDE5Is in which both the patients and their spouses answered the SLQQ before treatment and after 3 months taking PDE5Is regularly, with 12 couples completing the study.

RESULTS

The SLQQ scores of SC injured men on PDE5Is (study 1) were under the remembered pre-lesion level, with lower scores reported by those with complete lesions (P<.2 vs incomplete). Their partners' SLQQ scores were apparently similar to pre-injury times. The SLQQ scores of the patients and their partners were well correlated (r = 0.57, P<.0001), and they both reported high treatment satisfaction. Study 2: Untreated SCI patients reported very low SLQQ scores that were improved by PDE5Is treatment (P<.004), albeit without reaching the pre-injury level. A similar trend was found in their partners. Again both patients and partners reported high treatment satisfaction scores (P <.001).

CONCLUSION

The sexual life quality levels of SC injured men on PDE5Is and their able-bodied spouses are well correlated. Both partners report high treatment satisfaction scores.

Fertility and sexuality in the spinal cord injury patient

BACKGROUND

After a spinal cord injury, patients have different perceptions of sexuality, sexual function, and potential for fertility. These changes can greatly impact quality of life over a lifetime.

PURPOSE

The purpose of this workgroup was to identify common evidence based or expert opinion themes and recommendations regarding treatment of sexuality, sexual function and fertility in the spinal cord injury population.

METHODS

As part of the SIU-ICUD joint consultation of Urologic Management of the Spinal Cord Injury (SCI), a workgroup and comprehensive literature search of English language manuscripts regarding fertility and sexuality in the spinal cord injury patient were formed. Articles were compiled, and recommendations in the chapter are based on group discussion and follow the Oxford Centre for Evidence-based Medicine system for levels of evidence (LOEs) and grades of recommendation (GORs).

RESULTS

Genital arousal, ejaculation, and orgasm are significantly impacted after spinal cord injury in both male and female SCI patients. This may have a more significant impact on potential for fertility in male spinal cord injury patients, particularly regarding ability of generate erection, semen quantity and quality. Female patients should be consulted that pregnancy is still possible after injury and a woman should expect resumption of normal reproductive function. As a result, sexual health teaching should be continued in women despite injury. Pregnancy in a SCI may cause complications such as autonomic dysreflexia, so this group should be carefully followed during pregnancy.

CONCLUSIONS

By understanding physiologic changes after injury, patients and care teams can work together to achieve goals and maximize sexual quality of life after the injury.

Delayed Ejaculation: Pathophysiology, Diagnosis, and Treatment

Delayed ejaculation (DE) is a poorly defined and uncommon form of male sexual dysfunction, characterized by a marked delay in ejaculation or an inability to achieve ejaculation. It is often quite concerning to patients and their partners, and sometimes frustrates couples' attempts to conceive. This article aims to review the pathophysiology of DE and anejaculation (AE), to explore our current understanding of the diagnosis, and to present the treatment options for this condition. Electronic databases were searched from 1966 to October 2017, including PubMed (MEDLINE) and Embase. We combined “delayed ejaculation,” “retarded ejaculation,” “inhibited ejaculation,” or “anejaculation” as Medical Subject Headings (MeSH) terms or keywords with “epidemiology,” “etiology,” “pathophysiology,” “clinical assessment,” “diagnosis,” or “treatment.” Relevant sexual medicine textbooks were searched as well. The literature suggests that the pathophysiology of DE/AE is multifactorial, including both organic and psychosocial factors. Despite the many publications on this condition, the exact pathogenesis is not yet known. There is currently no single gold standard for diagnosing DE/AE, as operationalized criteria do not exist. The history is the key to the diagnosis. Treatment should be cause-specific. There are many approaches to treatment planning, including various psychological interventions, pharmacotherapy, and specific treatments for infertile men. An approved form of drug therapy does not exist. A number of approaches can be employed for infertile men, including the collection of nocturnal emissions, prostatic massage, prostatic urethra catheterization, penile vibratory stimulation, probe electroejaculation, sperm retrieval by aspiration from either the vas deferens or the epididymis, and testicular sperm extraction.

Orgasm and SCI: what do we know?

STUDY DESIGN

narrative review OBJECTIVES: To determine the percentage of persons with SCI able to achieve orgasm and ejaculation, the associations between ejaculation and orgasm and the subjective and autonomic findings during these events, and the potential benefits with regards to spasticity.

SETTING

Two American medical centers METHODS: Data bases were searched for the terms orgasm and SCI and ejaculation and SCI. Search criteria were human studies published in English from 1990 to 12/2/2016.

RESULTS

Approximately 50% of sexually active men and women report orgasmic ability after SCI. There is a relative inability of persons with complete lower motor neuron injuries affecting the sacral segments to achieve orgasm. Time to orgasm is longer in persons with SCIs than able-bodied (AB) persons. With orgasm, elevated blood pressure (BP) occurs after SCI in a similar fashion to AB persons. With penile vibratory stimulation and electroejaculation, BP elevation is common and prophylaxis is recommended in persons with injuries at T6 and above. Dry orgasm occurs approximately 13% of times in males. Midodrine, vibratory stimulation, clitoral vacuum suction, and 4-aminopyridine may improve orgasmic potential.

CONCLUSIONS

Depending on level and severity of injury, persons with SCIs can achieve orgasm. Sympathetically mediated changes occur during sexual response with culmination at orgasm. Future research should address benefits of orgasm. Additionally, inherent biases associated with studying orgasm must be considered.

Evaluation of sexual and fertility dysfunction in spinal cord-injured men in Jamaica

INTRODUCTION

Sexual dysfunction and infertility are common in males with traumatic spinal cord injuries (SCIs). The objective of this study was to determine the prevalence of sexual dysfunction and infertility in males with traumatic SCI managed in Jamaica, as well as the therapeutic options offered.

CASE PRESENTATION

A cross-sectional study including males with traumatic SCI managed at the Sir John Golding Rehabilitation Centre, Kingston, Jamaica was carried out between 1 January and 31 December 2015. Sexual function was measured with the International Index of Erectile Function Questionnaire, and further information on social history, fertility desires and treatment options offered were collected. Data were analyzed using Stata 12 for Windows (College Station, TX, USA). The mean age of patients at the time of study was 38.8±15.3 years (range 19-71) with a mean duration of injury of 3.7±2.4 years (range 1.3-15.6). Of 45 patients with traumatic SCI surveyed, 90.7% had erectile dysfunction, with 62.8% being classified as severe and 73.3% of men were unable to ejaculate. Treatment for erectile and ejaculatory dysfunction was offered in only two patients, respectively. Most (71.1%) patients indicated that they wanted to have children in the future, however, no one had been referred for assisted reproductive techniques.

DISCUSSION

Men with traumatic SCI have high rates of severe erectile and ejaculatory dysfunctions, but have preserved interests in maintaining fertility. Adherence to guidelines for sexual education for men with traumatic SCI in Jamaica and the Caribbean is needed.

Multiple Orgasms in Men-What We Know So Far

INTRODUCTION

There is much popular discussion on strategies to facilitate multiple orgasms in men (ie, 100,000+ hits in Google), yet the topic has not received an objective comprehensive review in the literature.

AIM

To review the literature on male multiple orgasms.

METHODS

We searched the literature for publications on "male multiple orgasms" and factors influencing male multiple orgasms in Google, PubMed, and PsychINFO. This yielded 15 relevant publications.

MAIN OUTCOME MEASURES

A comprehensive overview on the topic of male multiple orgasms and factors that influence the propensity of men to experience multiple orgasms.

RESULTS

Few men are multiorgasmic: <10% for those in their 20s, and <7% after the age of 30. The literature suggests 2 types of male multiple orgasms: "sporadic" multiorgasms, with interorgasmic intervals of several minutes, and "condensed" multiorgasms, with bursts of 2-4 orgasms within a few seconds to 2 minutes. Multiple orgasms appear physiologically similar to the single orgasm in mono-orgasmic men. However, in a single case study, a multiorgasmic man did not experience with his first orgasm the prolactin surge that usually occurs with orgasm in mono-orgasmic men. Various factors may facilitate multiple orgasms: (1) practicing to have an orgasm without ejaculation; (2) using psychostimulant drugs; (3) having multiple and/or novel sexual partners; or (4) using sex toys to enhance tactile stimulation. However, confirmatory physiological data on any of these factors are few. In some cases, the ability to experience multiple orgasms may increase after medical procedures that reduce ejaculation (eg, prostatectomy or castration), but what factor(s) influence this phenomenon is poorly investigated.

CONCLUSION

Despite popular interest, the topic of male multiple orgasms has received surprisingly little scientific assessment. The role of ejaculation and physiological change during the refractory period in inhibiting multiple orgasms has barely been investigated.

Sexual Functioning in Men Living with a Spinal Cord Injury-A Narrative Literature Review

BACKGROUND

Sexual dysfunction is a major concern for Indian men living with a spinal cord injury.

OBJECTIVES

To examine the literature related to sexuality traumatic cord injury and its impact on sexual functioning.

MATERIALS AND METHODS

Databases using Cumulative Index to Nursing and Allied Health Literature (CINAHL) 2000-2012, Medline 1989-2012, Applied Social Sciences Index and Abstracts (ASSIA) 1989-2012 and Google Scholar were the search engines used used for literature review.

RESULTS

The search yielded a total of 457 articles and only 75 of them were found relevant. The minimum number of articles required to meet the inclusion criteria for this review was 25-30 articles. Out of the 75 articles, 33 were considered relevant or related to the topic of sexual functioning, spinal cord injury, and paraplegia. Six areas were identified: Sexual stigmatization, physiological barriers to sexual satisfaction, clinical aspects of sexual functioning, biomedical approaches to sexual dysfunction, partner satisfaction, and lack of accessibility to sexual education.

CONCLUSION

Spinal cord injury and sexual functioning affects a large segment of the male Indian population, yet most current research focuses on quantitative measurement with the emphasis on ejaculatory dysfunction, orgasm impairment, incontinence, and other physiological dysfunction. Further research is needed to address the subjective accounts of patients themselves with respect to the emotional and social impact of sexual disability. This would help to identify the best possible outcomes for both treatment and rehabilitation.

Midodrine in patients with spinal cord injury and anejaculation: A double-blind randomized placebo-controlled pilot study

OBJECTIVE

The objective of this study is to evaluate the efficacy of midodrine in the treatment of anejaculation in men with spinal cord injury (SCI).

STUDY DESIGN

Prospective, double-blind, randomized, placebo-controlled pilot study.

METHOD

Men with anejaculation associated with SCI (level of injury above T10) of more than 1 year in duration were approached. Those with no ejaculatory response to one penile vibratory stimulation (PVS) trial were assigned in a double-blind manner to one of the two following interventions once a week for a maximum of 3 weeks or until ejaculation occurred: oral administration of flexible midodrine (7.5-22.5 mg max) followed by PVS (group M), or oral administration of flexible sham-midodrine (placebo) followed by PVS (group P). Sociodemographic data, medical characteristics, and plasma desglymidodrine concentration were collected for all participants.

OUTCOME MEASURE

Ejaculation success rate in each group.

RESULTS

Among the 78 men approached, 23 participants (level of SCI: C4-T9) were randomized. Three participants abandoned the study and 20 completed the study; 10 were assigned to group M, 10 to group P. Ejaculation was reached for one participant of group M and for two participants of group P. Autonomic dysreflexia associated to PVS occurred in three patients.

CONCLUSION

In this small sample study, treatment of anejaculation after SCI with midodrine and PVS did not result in a better rate of antegrade ejaculation in 10 men than in 10 men treated with a placebo and PVS.

Sexual dysfunction in patients with spinal cord lesions

Many aspects of sexuality can be disrupted following a spinal cord lesion (SCL). It can alter an individual's self-esteem and body image, interfere with positioning and mobility, introduce unexpected problems with incontinence and spasticity, decrease pleasure, and delay orgasm. Sexual concerns in men can involve erectile function, essential for intercourse, ejaculation function, necessary for fertility, and the ability to reach orgasm. In women they can involve concerns with vaginal lubrication, genital congestion, and vaginal infections, which can all go unnoticed, and orgasm, which may be lost. All of these concerns must be addressed during rehabilitation as individuals with SCL continue to live an active sexual life, and consider sexuality among their top priority for quality of life. This chapter describes the impact of SCL on various phases of men's and women's sexual responses and on various aspects of sexuality. Treatments are described in terms of what is currently available and what is specific to the SCL population. New approaches in particular for women are described, along with tips from sexual counseling which consider an overall approach, taking into account the primary, secondary, and tertiary consequences of the SCL on the individual's sexuality. Throughout the chapter, attempts are made to integrate neurophysiologic knowledge, findings from the literature on SCL, and clinical experience in sexual rehabilitation.

Evaluation of Sexual Function and Its Contributing Factors in Men With Spinal Cord Injury Using a Self-Administered Questionnaire

Sexual activity is an important aspect of life in patients with spinal cord injury (SCI), rated as one of the top priorities for recovery of function. This study was conducted to establish an understanding of the severity of erectile dysfunction (ED), a major component of male sexual activity, and its correlates in patients with SCI in our community. In a cross-sectional study, 37 male veterans with SCI admitted for regular follow-up at our center were recruited. Demographic and SCI-related descriptive information was gathered through a self-administered questionnaire. Sexual Health Inventory for Men was used to assess the presence and severity of ED. Euro Quality of Life questionnaire and General Health Questionnaire (GHQ-12) were also administered. The mean age of the participants was 45.7 ± 6.5 years with injury duration of 24.7 ± 6.2 years. Mean GHQ-12 score of 3.65 ± 3.38 and mean Sexual Health Inventory for Men score of 11.57 ± 5.28 were measured. All participants had ED, and 27% were suffering from severe ED. Sleep deprivation, worse GHQ-12 score, and hypertension were significantly associated with higher risk of much severe ED ( p < .05). In conclusion, ED is a common problem in veterans with SCI and is inversely associated with their general health status.

Transverse myelitis

Transverse myelitis (TM) includes a pathobiologically heterogeneous syndrome characterized by acute or subacute spinal cord dysfunction resulting in paresis, a sensory level, and autonomic (bladder, bowel, and sexual) impairment below the level of the lesion. Etiologies for TM can be broadly classified as parainfectious, paraneoplastic, drug/toxin-induced, systemic autoimmune disorders, and acquired demyelinating diseases. We discuss the clinical evaluation, workup, and acute and long-term management of patients with TM. Additionally, we briefly discuss various disease entities that may cause TM and their salient distinguishing features, as well as disorders that may mimic TM.

Rehabilitation and treatment of spinal cord tumors

CONTEXT

Due to advances in acute oncological treatment, patients with spinal cord tumors exhibit improved survival. However, these patients have not received the full benefits of rehabilitation services to address their neurological deficits and rehabilitation goals.

OBJECTIVE

To evaluate the epidemiology and pathophysiology of spinal cord tumors, address methods of acute oncological management, review treatment for neurological sequelae, and understand the implications as they relate to rehabilitation.

METHODS

An extensive literature review was performed regarding the epidemiology, pathophysiology, acute oncological management, neurological sequelae, and rehabilitation for patients with spinal cord tumors. Databases used included pubmed.gov and OVID, as well as individual journal and textbook articles.

RESULTS

Access to treatment should be increased given improved survival and functional deficits for patients with spinal cord tumors. Individuals can benefit from inpatient rehabilitation programs, in spite of increased medical co-morbidity and neurological deficits. Specific areas of improvement include functionality, mood, quality of life, and survival. Adjustments to treatment plans must incorporate medical complications from cancer and its treatment, perceived quality of life, and prognosis.

CONCLUSIONS

Patients with spinal cord tumors who participate in rehabilitation programs show general improvement in function, mood, quality of life, and survival. Adaptations to care plans should be made to accommodate medical co-morbidities from cancer and its treatment, patient perceptions, and prognosis.

[Sexual disorders from the perspective of the neurologist]

The temporal lobes and other cortical regions are involved in the emotional, cognitive and sensorimotor aspects of central control of sexual behaviour, whereas the insula, anterior cingulate and hypothalamus coordinate the activation of the autonomic nervous system. Facilitatory and inhibitory descending pathways modify the activity of thoracolumbar sympathetic and sacral parasympathetic and somatic spinal centres which control the sexual response, i.e. arousal, orgasm and ejaculation. A normal hormonal milieu and vascular system, but also a healthy psychosocial context, are necessary for a fulfilled sexual life. Sexual dysfunction is not uncommon in the general population, particularly in the elderly; it is more common in neurological patients. It significantly lowers their quality of life. The neurologist should diagnose sexual dysfunction in his patients and provide basic management including explanation, suggestions and--if necessary--drugs.

Bilateral bulbospinal projections to pudendal motoneuron circuitry after chronic spinal cord hemisection injury as revealed by transsynaptic tracing with pseudorabies virus

Complications of spinal cord injury in males include losing brainstem control of pudendal nerve-innervated perineal muscles involved in erection and ejaculation. We previously described, in adult male rats, a bulbospinal pathway originating in a discrete area within the medullary gigantocellularis (GiA/Gi), and lateral paragigantocellularis (LPGi) nuclei, which when electrically microstimulated unilaterally, produces a bilateral inhibition of pudendal motoneuron reflex circuitry after crossing to the contralateral spinal cord below T8. Microstimulation following a long-term lateral hemisection, however, revealed reflex inhibition from both sides of the medulla, suggesting the development or unmasking of an injury-induced bulbospinal pathway crossing the midline cranial to the spinal lesion. In the present study, we investigated this pathway anatomically using the transsynaptic neuronal tracer pseudorabies virus (PRV) injected unilaterally into the bulbospongiosus muscle in uninjured controls, and ipsilateral to a chronic (1-2 months) unilateral lesion of the lateral funiculus. At 4.75 days post-injection, PRV-labeled cells were found bilaterally in the GiA/Gi/LPGi with equal side-to-side labeling in uninjured controls, and with significantly greater labeling contralateral to the lesion/injection in lesioned animals. The finding of PRV-labeled neurons on both sides of the medulla after removing the mid-thoracic spinal pathway on one side provides anatomical evidence for the bilaterality in both the brainstem origin and the lumbosacral pudendal circuit termination of the spared lateral funicular bulbospinal pathway. This also suggests that this bilaterality may contribute to the quick functional recovery of bladder and sexual functions observed in animals and humans with lateral hemisection injury.

The development of a sensory substitution system for the sexual rehabilitation of men with chronic spinal cord injury

INTRODUCTION

Sexual health is often severely impacted after spinal cord injury (SCI). Current research has primarily addressed male erection and fertility, when in fact pleasure and orgasm are top priorities for functional recovery. Sensory substitution technology operates by communicating input from a lost sensory pathway to another intact sensory modality. It was hypothesized that through training and neuroplasticity, mapped tongue sensations would be interpreted as sensory perceptions arising from insensate genitalia, and improve the sexual experience.

AIM

To report the development of a sensory substitution system for the sexual rehabilitation of men with chronic SCI.

METHODS

Subjects performed sexual self-stimulation while using a novel sensory substitution device that mapped the stroking motion of the hand to a congruous flow of electrocutaneous sensations on the tongue.

MAIN OUTCOME MEASURES

Three questionnaires, along with structured interviews, were used to rate the perceived sexual sensations following each training session.

RESULTS

Subjects completed 20 sessions over approximately 8 weeks of training. Each subject reported an increased level of sexual pleasure soon after training with the device. Each subject also reported specific perceptions of cutaneous-like sensations below their lesion that matched their hand motion. Later sessions, while remaining pleasurable and interesting, were inconsistent, and no subject reported an orgasmic feeling during a session. The subjects were all interested in continuing training with the device at home, if possible, in the future.

CONCLUSIONS

This study is the first to show that sensory substitution is a possible therapeutic avenue for sexual rehabilitation in people lacking normal genital sexual sensations. However more research, for instance on frequency and duration of training, is needed in order to induce functional lasting neuroplasticity. In the near term, SCI rehabilitation should more fully address sexuality and the role of neuroplasticity for promoting the maximal potential for sexual pleasure and orgasm.

Select spinal lesions reveal multiple ascending pathways in the rat conveying input from the male genitalia

The specific white matter location of all the spinal pathways conveying penile input to the rostral medulla is not known. Our previous studies using rats demonstrated the loss of low but not high threshold penile inputs to medullary reticular formation (MRF) neurons after acute and chronic dorsal column (DC) lesions of the T8 spinal cord and loss of all penile inputs after lesioning the dorsal three-fifths of the cord. In the present study, select T8 lesions were made and terminal electrophysiological recordings were performed 45-60 days later in a limited portion of the nucleus reticularis gigantocellularis (Gi) and Gi pars alpha. Lesions included subtotal dorsal hemisections that spared only the lateral half of the dorsal portion of the lateral funiculus on one side, dorsal and over-dorsal hemisections, and subtotal transections that spared predominantly just the ventromedial white matter. Electrophysiological data for 448 single unit recordings obtained from 32 urethane-anaesthetized rats, when analysed in groups based upon histological lesion reconstructions, revealed (1) ascending bilateral projections in the dorsal, dorsolateral and ventrolateral white matter of the spinal cord conveying information from the male external genitalia to MRF, and (2) ascending bilateral projections in the ventrolateral white matter conveying information from the pelvic visceral organs (bladder, descending colon, urethra) to MRF. Multiple spinal pathways from the penis to the MRF may correspond to different functions, including those processing affective/pleasure/motivational, nociception, and mating-specific (such as for erection and ejaculation) inputs.

What do spinal cord injury consumers want? A review of spinal cord injury consumer priorities and neuroprosthesis from the 2008 neural interfaces conference

OBJECTIVE

  To summarize research to understand the priorities of consumers with spinal cord injury (SCI) as related to neuroprosthesis.

MATERIALS AND METHODS

  This review is generated from results presented during a session at the 2008 Neural Interfaces Conference held in Cleveland, OH including presentations of research, observation of a panel discussion, and a case study.

RESULTS

  Understanding priorities of consumers living with SCI may help guide development of technology to potentially increase quality of life, confidence, and independence. Those living with quadriplegia desire arm and hand function while persons with paraplegia wish to regain sexual function. Shared priorities in the SCI population are the restoration of bladder and bowel function and the importance of exercise for functional recovery.

CONCLUSION

  Understanding the consumer is the cornerstone to successful delivery of a neuroprosthesis. Translational research by multidisciplinary teams is needed to understand these issues and move technology for people living with SCI from the bench to the bedside.

Functioning and disability in spinal cord injury from the consumer perspective: an international qualitative study using focus groups and the ICF

STUDY DESIGN

Qualitative, multi-center study.

OBJECTIVES

To examine the lived experiences of persons with spinal cord injury (SCI) in both the early post-acute and the long-term context using the International Classification of Functioning, Disability and Health (ICF) as a frame of reference.

SETTING

International study sites representing the six World Health Organization world regions.

METHODS

A qualitative study using focus groups methodology was conducted. Sample size was determined by saturation. The focus groups were digitally recorded and transcribed verbatim. The meaning condensation procedure was used for the data analysis. The resulting meaningful concepts were linked to ICF categories according to established linking rules.

RESULTS

Forty-nine focus groups with 230 participants were performed. Saturation was reached in four out of the six world regions. A total of 3122 and 4423 relevant concepts were identified in the focus groups for the early post-acute and the long-term context, respectively, and linked to a total of 171 and 188 second-level categories. All chapters of the ICF components Body functions, Activities and participation and Environmental factors were represented by the linked ICF categories. In all, 36 and 113 concepts, respectively, are not classified by the ICF and 306 and 444, respectively, could be assigned to the ICF component Personal Factors, which is not yet classified.

CONCLUSION

A broad range of the individual experiences of persons with SCI is covered by the ICF. A large number of experiences were related to Personal Factors.

Measurement of sexual functioning after spinal cord injury: preferred instruments

BACKGROUND/OBJECTIVE

To determine the utility of certain instruments to assess sexuality and fertility after SCI, an expert panel identified key areas to study and evaluated available instruments. These were rated according to certain predefined criteria.

METHODS

The authors divided sexual issues into male and female sexual function, male reproductive function, and female reproductive function. The instruments that have been used most frequently to measure these aspects of sexual function over the past 5 years were identified by expert consensus. Finally, these instruments were subjected to a critical review.

RESULTS

The Female Sexual Function Index (FSFI), measurement of vaginal pulse amplitude (VPA), the International Index of Erectile Function (IIEF), and the measurement of ejaculatory function and semen quality were considered appropriate measures to assess sexual responses and reproductive function after SCI. There were no measures identified to assess female reproductive function.

CONCLUSIONS

For clinical trials aiming to improve sexual function after SCI, the FSFI or the IIEF is currently preferred. Although VPA is an appropriate means to assess female sexual responses, it is only useful for laboratory studies and is too invasive for use in clinical trials. For assessment of male fertility potential, assessment of ejaculatory capacity and semen analysis are recommended.