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Featured researches published by Jacob Ronen.


Disability and Rehabilitation | 2007

The Spinal Cord Independence Measure (SCIM) version III: Reliability and validity in a multi-center international study

M Itzkovich; Ilana Gelernter; Fin Biering-Sørensen; C Weeks; M T Laramee; B C Craven; M Tonack; Sander L. Hitzig; E Glaser; G Zeilig; S. Aito; G Scivoletto; M Mecci; R J Chadwick; W. S. El Masry; A Osman; Clive Glass; P Silva; B M Soni; B P Gardner; Gordana Savic; E M K Bergström; V Bluvshtein; Jacob Ronen; Amiram Catz

Purpose. To examine the third version of the Spinal Cord Independence Measure (SCIM III) for reliability and validity in a multi-center cohort study. Method. Four hundred and twenty-five patients with spinal cord lesions from 13 spinal cord units in six countries from three continents were assessed with SCIM III and the Functional Independence measure (FIM) on admission to rehabilitation and before discharge. Results. Total agreement between raters was above 80% in most SCIM III tasks, and all kappa coefficients were statistically significant (P < 0.001). The coefficients of Pearson correlation between the paired raters were above 0.9, and intraclass correlation coefficients were above 0.94. Cronbachs α was above 0.7. The coefficient of Pearson correlation between FIM and SCIM III was 0.790 (P < 0.01). SCIM III was more responsive to changes than FIM in the subscales of Respiration and sphincter management and Mobility indoors and outdoors. Conclusions. The results support the reliability and validity of SCIM III in a multi-cultural setup. Despite several limitations of the study, the results indicate that SCIM III is an efficient measure for functional assessment of SCL patients and can be safely used for clinical and research trials, including international multi-center studies.


Disability and Rehabilitation | 2001

The Catz-Itzkovich SCIM: a revised version of the Spinal Cord Independence Measure

Amiram Catz; M Itzkovich; Flavia Steinberg; Ora Philo; Haim Ring; Jacob Ronen; Raluca Spasser; Reuven Gepstein; Ada Tamir

PURPOSE To examine the suitability of the revised Spinal Cord Independence Measure, the Catz-ltzkovich SCIM, for evaluation of patients with spinal cord lesions, as compared to the original SCIM and to the Functional Independence Measure (FIM). METHOD The revised SCIM was applied by paired independent teams of occupational therapists, physiotherapists and nurses and the FIM by a single nurse. The examiners assigned scores to the functional capabilities of 28 patients with spinal cord lesions. The scores by the revised SCIM were analysed for reproducibility as between the two teams of examiners (interrater reliability) and for their correlation with the FIM scores. RESULTS The frequency of identical scoring by two independent examiners (total agreement) was 80% or higher for 13/18 individual functions listed in the revised SCIM. In the self-care category it was 80-99%, as compared to 75-87% before revision. In neither bowel management nor bed mobility was there an increase over the original SCIM in the frequency of identical scores, despite rephrasing and restructuring of the scoring criteria. A high correlation was noted between the paired scores for all functions listed as well as for those comprising each of the four functional categories (r = 0.90-0.96, p <0.001). The total revised-SCIM scores were significantly correlated with those derived by the FIM (r = 0.835, p < 0.001). CONCLUSIONS The findings indicate that the newly revised SCIM (Catz-Itzkovich) is a valid and highly reproducible measure of daily function in patients with spinal cord lesions, and is superior to the original SCIM. We recommend that it supersede the original SCIM.Purpose : To examine the suitability of the revised Spinal Cord Independence Measure, the Catz-Itzkovich SCIM, for evaluation of patients with spinal cord lesions, as compared to the original SCIM and to the Functional Independence Measure (FIM). Method : The revised SCIM was applied by paired independent teams of occupational therapists, physiotherapists and nurses and the FIM by a single nurse. The examiners assigned scores to the functional capabilities of 28 patients with spinal cord lesions. The scores by the revised SCIM were analysed for reproducibility as between the two teams of examiners (interrater reliability) and for their correlation with the FIM scores. Results : The frequency of identical scoring by two independent examiners (total agreement) was 80% or higher for 13/18 individual functions listed in the revised SCIM. In the self-care category it was 80-99%, as compared to 75-87% before revision. In neither bowel management nor bed mobility was there an increase over the original SCIM in the frequency of identical scores, despite rephrasing and restructuring of the scoring criteria. A high correlation was noted between the paired scores for all functions listed as well as for those comprising each of the four functional categories ( r = 0.90-0.96, p < 0.001). The total revised-SCIM scores were significantly correlated with those derived by the FIM ( r = 0.835, p < 0.001). Conclusions : The findings indicate that the newly revised SCIM (Catz-Itzkovich) is a valid and highly reproducible measure of daily function in patients with spinal cord lesions, and is superior to the original SCIM. We recommend that it supersede the original SCIM.


Spine | 2004

Recovery of Neurologic Function Following Nontraumatic Spinal Cord Lesions in Israel

Amiram Catz; Diana Goldin; Beno Fishel; Jacob Ronen; Vadim Bluvshtein; Ilana Gelernter

Study Design. Retrospective cohort study. Objective. To assess neurologic recovery and the manner in which it is affected by various factors following nontraumatic spinal cord lesions (NTSCLs). Summary of Background Data. NTSCLs comprise a considerable portion of spinal cord lesions. However, information about neurologic recovery in these lesions is scarce. Method. The study sample included 1,085 patients with NTSCL treated between 1962 and 2000 at the premier referral hospital for rehabilitation in Israel. Demographic and clinical data were collected from hospital charts. The degree of neurologic recovery was determined by comparing each patients Frankel grades of neurologic deficit at first admission to rehabilitation and at discharge from the same hospitalization. The study population was also compared with previously studied 250 patients with traumatic spinal cord lesions (TSCLs). Results. Complete or substantial neurologic recovery (upgrade to Frankel Grade D or E) occurred during rehabilitation in 51% of patients who were Grade A, B, or C on admission, and in 57% of those who were Grade C. Neurologic recovery in NTSCL during rehabilitation was significantly affected by initial Frankel grade and by NTSCL etiology. Age had a borderline effect. Gender, lesion level, and the decade of rehabilitation did not affect recovery. Recovery rate was usually higher in NTSCLs than in TSCLs. Conclusions. The prognosis for neurologic recovery is affected mainly by SCL severity and etiology, and is usually better in NTSCLs than in TSCLs.


American Journal of Physical Medicine & Rehabilitation | 2003

Reliability of the Catz-Itzkovich Spinal Cord Independence Measure assessment by interview and comparison with observation

M Itzkovich; Ada Tamir; Ora Philo; Flavia Steinberg; Jacob Ronen; Raluca Spasser; Reuven Gepstein; Haim Ring; Amiram Catz

Itzkovich M, Tamir A, Philo O, Steinberg F, Ronen J, Spasser R, Gepstein R, Ring H, Catz A: Reliability of the Catz-Itzkovich spinal cord independence measure assessment by interview and comparison with observation. Am J Phys Med Rehabil 2003;82:267–272. Objective To examine the reliability of assessment with the Catz-Itzkovich Spinal Cord Independence Measure II (SCIM II) by interview and compare the findings with assessment by observation. Design In a cohort, comparative study, 28 inpatients with spinal cord lesions were assessed by two nurses using the Catz-Itzkovich SCIM II (interview) and by a multidisciplinary team (observation). Results Total agreement between interviewers ranged from 50% to 80% (Kappa coefficients 0.40–0.60). Pearson’s coefficients of the correlation between scores obtained for the various SCIM subscales by interview or observation were 0.765–0.940 (P < 0.0001). The differences in mean scores obtained between the interview and observation methods were small and not statistically significant for most of the subscales. Conclusions The results support the reliability of the Catz-Itzkovich SCIM assessment by interview and show it to be comparable with assessment by observation. The SCIM II interview may serve as an accurate measure of daily function in patients with spinal cord injury. However, with the sample of the study being relatively small, a larger scale examination is needed to generalize the results.


Spine | 2002

Recovery of neurologic function after spinal cord injury in Israel.

Amiram Catz; Michael Thaleisnik; Beno Fishel; Jacob Ronen; Raluca Spasser; Yoram Folman; Esther L. Shabtai; Reuven Gepstein

Study Design. A retrospective cohort study was conducted. Objective. To assess neurologic recovery and the manner in which it is affected by the severity of the neurologic damage after spinal cord injury. Summary of Background Data. Studies from various countries, but not from Israel, have shown considerable potential for recovery of the damaged human spinal cord. Methods. The study sample included 250 patients with a traumatic spinal cord lesion treated between 1962 and 1992 at the major referral hospital for rehabilitation in Israel. Demographic and clinical data were collected from the hospital charts. The degree of neurologic recovery in each patient was determined by comparing the Frankel grade of neurologic deficit at first admission for rehabilitation with the grade at discharge from that hospitalization. Results. There was median delay of 36 days between injury and admission for rehabilitation. During rehabilitation, full or substantial neurologic recovery (upgrade to Frankel Grade D or E) occurred in 27% of all the patients who were Grade A, B, or C on admission, and in 54% of those who were Grade C. The neurologic recovery was negatively associated with severity of the neurologic deficit. Conclusions. The outcome findings are similar to those reported from spinal rehabilitation units in other countries. The study is a further demonstration of the considerable potential for neurologic recovery after spinal cord injury, when posttraumatic or postsurgical management is focused on prevention of complications and maximal use of functional ability.


Journal of Rehabilitation Medicine | 2002

Disability assessment by a single rater or a team: a comparative study with the Catz-Itzkovich spinal cord independence measure.

Amiram Catz; M Itzkovich; Flavia Steinberg; Ora Philo; Haim Ring; Jacob Ronen; Raluca Spasser; Reuven Gepstein; Ada Tamir

The Catz-Itzkovich Spinal Cord Independence Measure was found to be reliable and more sensitive than the FIM to functional changes, when used by a multidisciplinary team. This study was performed to find out whether assessment may be similar when done by a single rater. Twenty-eight patients with spinal cord lesions participated in the study, in which examinations performed within a week by a single nurse or a team were compared for correlation, differences and agreement. The team members scored their relevant fields. A significant correlation was found between the nurses scoring and that of physiotherapists and occupational therapists (r = 0.82-0.94; p < 0.0001), and the differences between the mean scores were small. The agreement between raters was modest, however (total agreement 38-90%, Kappa 0.17-0.73). It was concluded that although disability assessment performed by a single nurse may not be as accurate as by a multidisciplinary team, it could be reliable and valid.


Spinal Cord | 2008

Survival, neurological recovery and morbidity after spinal cord injuries following road accidents in Israel

E. Tchvaloon; Lilach Front; Ilana Gelernter; Jacob Ronen; Vadim Bluvshtein; Amiram Catz

Design:A retrospective cohort study.Objective:Assess outcomes in patients with spinal cord injuries (SCI) following road accidents, and factors that affect them.Setting:Loewenstein Rehabilitation Hospital, Raanana, Israel.Subjects:A total of 143 patients admitted for rehabilitation between 1962 and 2004.Methods:Survival rates were estimated using the product limit (Kaplan–Meyer) method and their association with risk factors was analyzed with the Cox model. Neurological recovery was determined by comparing the Frankel grade at admission to rehabilitation and at discharge. The relation between recovery and various factors was tested with logistic regression.Results:The risk of SCI in road accidents is higher among car drivers and motorcycle or bicycle riders. Median survival was 43 years. Survival was negatively associated with age at injury (P<0.0002) and with diagnosis of pressure sores (P=0.0065). Recovery of at least one Frankel grade occurred in 29.1% of patients. Useful recovery (upgrade to Frankel grade D or E) occurred in 23.1% of all patients. Neurological recovery was negatively associated with the severity of neurological deficit (P<0.001) and with thoracic injuries (P=0.046). The most common complications were pressure sores and those of the urinary and respiratory systems.Conclusions:In SCI following road accidents, survival rates were higher and recovery rates lower than in mixed types of trauma. This may be related to better compensation followed by better nursing for road accident victims in Israel, which may prevent life-shortening complications, and to more severe injuries caused by road accidents.Sponsorship:The Israeli Union of Insurance Companies.


Disability and Rehabilitation | 2005

Outcomes in patients admitted for rehabilitation with spinal cord or cauda equina lesions following degenerative spinal stenosis

Jacob Ronen; Diana Goldin; M Itzkovich; Vadim Bluvshtein; Ilana Gelernter; Arkady Livshitz; Yoram Folman; Amiram Catz

Purpose. To evaluate outcome measures and the factors affecting them in patients treated between 1962 and 2000 at Loewenstein Rehabilitation Hospital, Israel. Method. This retrospective cohort study included 262 patients with spinal neurological lesions (spinal cord or cauda equina lesions) following degenerative spinal stenosis. Data were collected retrospectively. Survival was assessed using the Kaplan-Meier method and the relative mortality risk by the Cox model. Neurological recovery was evaluated by the change in Frankel grades, and factors that affect it were assessed by logistic regression. Associations of length of stay in rehabilitation were analyzed with ANOVA. Results. Median age at lesion onset was 61 years and median survival 17.6 years. Age at spinal neurological lesion onset was found to be the only factor with a significant effect on survival. Of the 148 patients who had Frankel grades A, B, or C on admission, 58% achieved recovery to grades D and E. Frankel grade at admission, age, and spinal neurological level had a significant effect on recovery. The mean length of stay was 99.7 days, and only Frankel grade had a significant effect on length of stay. Conclusions. Patients with spinal stenosis and disabling spinal neurological lesions can achieve significant neurological recovery and survive for many years. They require adequate care in a specialist rehabilitation system.


Disability and Rehabilitation | 2001

Spinal pain independence measure - a new scale for assessment of primary ADL dysfunction related to LBP

M Itzkovich; Amiram Catz; Ada Tamir; Jacob Ronen; Ora Philo; Flavia Steinberg; Eytana Tabacaru; Raluca Spasser; Reuven Gepstein

Purpose/Method : SPIM-Spinal Pain Independence Measure, a new disability scale designed for patients with chronic low back pain disability, has been developed and studied at the Spinal Department of Loewenstein Rehabilitation Hospital. The SPIM differs from other existing scales for evaluation of chronic back disability, in that it is designated particularly for patients with deficits in primary ADL and evaluates function by observation. Results/Conclusions : This study shows the SPIM to be reliable; it supports the validity of the scale and points out a possible advantage of the SPIM over existing scales in sensitivity to functional change of patients with prominent disability. Further elaboration and examination of the SPIM is still needed.PURPOSE/METHOD SPIM Spinal Pain Independence Measure. a new disability scale designed for patients with chronic low back pain disability, has been developed and studied at the Spinal Department of Loewenstein Rehabilitation Hospital. The SPIM differs from other existing scales for evaluation of chronic back disability, in that it is designated particularly for patients with deficits in primary ADL and evaluates function by observation. RESULTS/CONCLUSIONS This study shows the SPIM to be reliable: it supports the validity of the scale and points out a possible advantage of the SPIM over existing scales in sensitivity to functional change of patients with prominent disability. Further elaboration and examination of the SPIM is still needed.


Disability and Rehabilitation | 2005

Rupture of quadriceps tendon in a patient with postanoxic choreoathetosis

Tatiana Vander; Beniamin Kish; Simon Strauss; Jacob Ronen; Vadim Bluvstein; Amiram Catz

Purpose. To describe a case of quadriceps tendon rupture in a patient with postanoxic choreoathetotic movements. Case report: A 20-year-old man was admitted to a rehabilitation hospital after anoxic brain injury. As a result of the injury, he developed continuous flowing choreoathetotic movements. He contracted fever and swollen and painful right knee, and only when periarticular edema decreased did a suprapatellar gap appear and quadriceps tendon rupture was diagnosed. Conclusions: Considering the possibility of tendon rupture when evaluating a patient with non-volitional movements and ‘arthritic’ presentation in a rehabilitation setting, may prevent delay of quadriceps surgical repair.

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Ora Philo

Technion – Israel Institute of Technology

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G Zeilig

Sheba Medical Center

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