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Do psychological factors affect outcomes in musculoskeletal shoulder disorders? A systematic review

Sheikhzadeh, Ali; Wertli, Maria M; Weiner, Shira Schecter; Rasmussen-Barr, Eva; Weiser, Sherri
BACKGROUND:Psychological factors may impact recovery in patients undergoing treatment for shoulder complaints. The aim of this review is to systematically analyse the evidence for the effect of modifiable psychological factors (MPF) on outcome, for patients with musculoskeletal shoulder disorders undergoing conservative or surgical treatment. MPF refers to factors that may change with intervention. METHODS:This is a systematic literature review. Five databases searched (MEDLINE, CINAHL, Cochrane Library, Embase and PsycInfo), for longitudinal studies investigating the influence of MPF on prognosis of patients with shoulder disorders, all diagnoses, undergoing clinical interventions (conservative or surgical). Level of evidence was determined using Scottish Intercollegiate Guidelines Network (SIGN) methodology. Moderate and high quality evidence was included. We extracted all MPF, categorized constructs into the following domains: beliefs (self-efficacy, expectation of recovery), coping (catastrophizing, avoidant coping), and affect (depression, anxiety). We evaluated constructs for its predictive value of at least one outcome. Outcomes were informed by this review. Evidence was classified into three categories: evidence for, inconclusive evidence, and evidence against. RESULTS:Of 1170 references, 40 distinct publications based on 35 datasets were included (intervention type: 20 surgical; 20 conservative). Overall, 22 studies (20 cohort studies and 2 RCTs) were classified as high quality and 18 studies (16 cohort studies, 2 RCTs) were classified as moderate quality. Outcomes reported included pain, disability/function, perceived recovery, physical and mental health, and work status. Based on the review, of the psychological constructs explored, these data would suggest that expectation of recovery, catastrophizing, avoidant coping, depression, and anxiety may predict outcome for patients managed surgically. In patients undergoing conservative intervention the evidence was either against (catastrophizing, depression, anxiety) or inconclusive (self-efficacy, expectation of recovery, avoidant coping) for the predictive value of psychological factors on outcome. CONCLUSIONS:Five constructs were predictive of outcome for surgically managed patients. This suggests that implementing the biopsychosocial approach (i.e., preoperative screening, intervention by a trained clinician) may be advantageous for patients recommended for shoulder surgery,,. The same is not indicated for conservatively managed patients as no conclusive association of MPF with outcomes was noted. The importance of other MPF on outcome requires further investigation.
PMID: 34147071
ISSN: 1471-2474
CID: 4917972

Organization of Work Factors Associated with Work Ability among Aging Nurses

Stimpfel, Amy Witkoski; Arabadjian, Milla; Liang, Eva; Sheikhzadeh, Ali; Weiner, Shira Schecter; Dickson, Victoria Vaughan
The United States (U.S.) workforce is aging. There is a paucity of literature exploring aging nurses' work ability. This study explored the work-related barriers and facilitators influencing work ability in older nurses. We conducted a qualitative descriptive study of aging nurses working in direct patient care (N = 17). Participants completed phone or in-person semi-structured interviews. We used a content analysis approach to analyzing the data. The overarching theme influencing the work ability of aging nurses was intrinsically motivated. This was tied to the desire to remain connected with patients at bedside. We identified factors at the individual, unit-based work level and the organizational level associated with work ability. Individual factors that were protective included teamwork, and feeling healthy and capable of doing their job. Unit-based level work factors included having a schedule that accommodated work-life balance, and one's chronotype promoted work ability. Organizational factors included management that valued worker's voice supported work ability.
PMID: 31322064
ISSN: 1552-8456
CID: 3986382

Mapping glenohumeral laxity: effect of capsule tension and abduction in cadaveric shoulders

Kraszewski, Andrew P; Mayer, Stephanie W; Kontaxis, Andreas; Hillstrom, Howard J; Sheikhzadeh, Ali; Warren, Russell P
BACKGROUND:Shoulder capsular plication aims to restore the passive stabilization of the glenohumeral capsule; however, high reported recurrence rates warrant concern. Improving our understanding of the clinical laxity assessment across 2 dimensions, capsular integrity and shoulder position, can help toward the standardization of clinical tools. Our objectives were to test and describe glenohumeral laxity across 5 capsular tension levels and 4 humeral position levels and describe tension-position interplay. METHODS:We tested 14 dissected cadavers for glenohumeral laxity in 5 directions: anterior, posterior, and inferior translation, and internal and external axial rotation. Laxity was recorded across capsule tension (baseline, stretched, 5 mm, 10 mm, and 15 mm of plication) and position (0°, 20°, 40°, 60° of scapular abduction). Repeated-measures analysis of variance with post hoc contrasts tested the effect of tension, position, and composite tension × position on laxity. RESULTS:Capsule tension, position, and composite interplay had a statistically significant, although unequal, effect on laxity in each direction. Laxity was consistently overconstrained in 15-mm plication and was overall greatest in 20° and lowest in 60°. Restoration occurred most in 10 mm, but this depended on the position. The composite effect was significant for external and internal rotation and inferior laxity, but laxity at the middle range (20° or 40°) was different than at the end range (0° or 60°) for all directions. CONCLUSIONS:On average, laxity was restored to baseline tension after 10-mm plication, but this determination varied depending on shoulder position. Middle-range laxity behaved differently than end-range laxity across plication tensions. This information is useful in understanding the unstable shoulder as well as for standardizing clinical laxity assessment.
PMID: 29269137
ISSN: 1532-6500
CID: 2892282

Medical Aspects of Fitness to Drive : The Human Factors Role

Sheikhzadeh, Ali; Pinto, Vivek
Orthopedic surgeons and other stakeholders need better return-to-driving guidelines for post–orthopedic surgery and trauma patients. The state of the current orthopedic research is in need of better methodology, particularly regarding control over the cognitive domain’s influence on the physical domain. Recommendations need to be based on an individual’s assessment of physical performance rather than the passage of time after surgery. This article highlights the areas of concern for driving research in the orthopedic community and how they can affect study design
ISSN: 1064-8046
CID: 2892292

Assessment of engineering controls designed for handling unstable loads: An electromyography assessment

Pinto, V.J.; Sheikhzadeh, A.; Halpern, M.; Nordin, M.
ISSN: 0169-8141
CID: 629022

Kinematic analysis of dynamic shoulder motion in patients with reverse total shoulder arthroplasty

Kwon, Young W; Pinto, Vivek J; Yoon, Jangwhon; Frankle, Mark A; Dunning, Page E; Sheikhzadeh, Ali
BACKGROUND: Reverse total shoulder arthroplasty (rTSA) has been used to treat patients with irreparable rotator cuff dysfunction. Despite the proven clinical efficacy, there is minimal information regarding the underlying changes to the shoulder kinematics associated with this construct. Therefore, we sought to examine the kinematics of dynamic shoulder motion in patients with well-functioning rTSA. METHODS: We tested 12 healthy subjects and 17 patients with rTSA. All rTSA patients were able to elevate their arms to at least 90 degrees and received the implant as the primary arthroplasty at least 6 months before testing. On average, the rTSA patients elevated their arms to 112 degrees +/- 12 degrees (mean +/- SD) and reported an American Shoulder and Elbow Surgeons outcome score of 90.6 +/- 6.3. A 3-dimensional electromagnetic motion capture device was used to detect the dynamic motion of the trunk, scapula, and humerus during bilateral active shoulder elevation along the sagittal, scapular, and coronal planes. RESULTS: In both healthy and rTSA shoulders, the majority of the humeral-thoracic motion was provided by the glenohumeral motion. Therefore, the ratio of glenohumeral to scapulothoracic (ST) motion was always greater than 1.62 during elevation along the scapular plane. In comparison to healthy subjects, however, the contribution of ST motion to overall shoulder motion was significantly increased in the rTSA shoulders. This increased contribution was noted in all planes of shoulder elevation and was maintained when weights were attached to the arm. CONCLUSION: Kinematics of the rTSA shoulders are significantly altered, and more ST motion is used to achieve shoulder elevation.
PMID: 22036549
ISSN: 1058-2746
CID: 174365

The effect of a new syringe design on the ability of rheumatoid arthritis patients to inject a biological medication

Sheikhzadeh, Ali; Yoon, Jangwhon; Formosa, Dan; Domanska, Barbara; Morgan, Darrell; Schiff, Michael
Self-administration of new biological medications can be difficult for Rheumatoid Arthritis patients with functional impairment and hand and dexterity limitation. Twenty-three Rheumatoid Arthritis (RA) patients participated in this study to compare preferences and injection forces using a conventional syringe and a new ergonomically designed syringe. Injection force measurements were collected in two ways: a) isometric forces, with the syringes' plungers in fixed positions (depressed halfway and fully depressed), and b) forces exerted during injection of the medication. Subjects' grip and pinch strengths were measured. A perception questionnaire gauged subjects' impressions and preferences. Subjects were capable of exerting significantly higher isometric forces using the new syringe with the plunger fixed both halfway and fully depressed. During injection of the medication, peak and mean injection forces were significantly higher, and duration was shorter, when using the new syringe. Subjects rated the new syringe higher on all twenty attributes on preference and performance. Therefore, it is expected that the new syringe will benefit self-administration of medication injection for RA patients
PMID: 21696704
ISSN: 1872-9126
CID: 139470

Biomechanics of the hip

Chapter by: Sheikhzadeh, Ali; Kendall, Owen; Frankel, Victor H
in: Basic Biomechanics of the Musculoskeletal System by Nordin, Margareta; Frankel, Victor H [Eds]
Philadelphia : Lippincott Williams and Wilkins, 2012
pp. 206-223
ISBN: 1451117094
CID: 1331512

Evaluation of a novel pre-filled syringe for self-administration of certolizumab pegol results from a syringe usability study [Meeting Abstract]

Schiff, M; Sheikhzadeh, A; Formosa, D; Domanska, B; Morgan, D
ISSN: 1078-0998
CID: 106963

Evaluation of a Novel Pre-filled Syringe for Self-administration of Certolizumab Pegol: Results from a Syringe Usability Study [Meeting Abstract]

Schiff, M; Sheikhzadeh, A; Formosa, D; Domanska, B; Morgan, D
ISSN: 0002-9270
CID: 106466