Revision Arthroplasty with Use of a Reverse Shoulder Prosthesis-Allograft Composite

Chacon, Ariel; Virani, Nazeem A.; Shannon, Robert; Levy, Jonathan C.; Pupello, Derek; Frankle, Mark A.

doi:10.2106/jbjs.h.00094

Cited by 131 publications

(87 citation statements)

References 15 publications

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“…20 The Simple Shoulder Test (SST) is a shoulder-specific scale that has been used to characterize changes over time following SA. 5,6 Previous studies have shown that the SST is valid and reliable. 3,10,30 In fact, its reliability has been shown to be superior to other shoulder-specific scales.…”

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confidence: 99%

The Simple Shoulder Test Is Responsive in Assessing Change Following Shoulder Arthroplasty

Roy

MacDermid²,

Faber³

et al. 2010

J Orthop Sports Phys Ther

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Shoulder arthroplasty (SA) is an accepted means of pain relief and improving function in patients with advanced joint destruction. 35 Measures of physical impairment and selfreported function are commonly used to assess the outcomes of these procedures. Various self-reporting scales are available to measure the functional outcome of shoulder surgery, but only a few While the responsiveness of the SST has been established for rotator cuff repair, it has not been determined for patients undergoing arthroplasty.t MethoDS: Patients undergoing shoulder arthroplasty (n = 120) were evaluated prior to surgery and 6 months after. The evaluation included the SST, Disabilities of the Arm, Shoulder and Hand questionnaire, range of motion, and isometric strength. Responsiveness to change was assessed using standardized response mean (SRM), while longitudinal construct validity was evaluated using Pearson correlation. Receiver operating characteristics curves were plotted to determine clinically important difference of SST.t reSUltS: The SST and Disabilities of the Arm, Shoulder and Hand questionnaire were highly responsive (SRM, 1.70) for this population. For the assessment of impairment, range of motion (SRM, 0.64-1.03) was moderately to highly responsive, while isometric strength was minimally to moderately responsive (SRM, 0.32-0.69). The clinically important difference of the SST was established at 3.0 SST points. Pearson correlations indicated moderate associations between the change scores of the SST and the Disabilities of the Arm, Shoulder and Hand questionnaire (r = 0.49).t ConClUSionS: The SST has been previously shown to be valid and highly reliable. The present results show that the SST is also responsive following shoulder arthroplasty and that it has a clinically important difference of 3.0 SST points. This should provide confidence to clinicians who wish to use a brief shoulder-specific measure in their practice.

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confidence: 99%

The Simple Shoulder Test Is Responsive in Assessing Change Following Shoulder Arthroplasty

Roy

MacDermid²,

Faber³

et al. 2010

J Orthop Sports Phys Ther

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“…The reported incidence for unconstrained primary shoulder replacement ranges from 0 to 4% [3][4][5][6]. The risk of infection rises with the number of revisions performed.…”

Section: Discussionmentioning

confidence: 99%

Humeral bone defect after multiple surgeries in a post-traumatic case

et al. 2010

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“…By restoring stability to the joint and tensioning the remaining muscles in a more anatomic fashion, external rotation could be improved. Furthermore, clinical studies have confirmed that restoring the lateral offset of the humerus leads to an increase in external rotation postoperatively in a variety of pathologic conditions [9,14,22,43,44]. In addition, these authors believed restoring muscle tension would also help restore the stability of the glenohumeral joint by increasing the compression on the humerus, a factor that was compromised with medialization and hence slackening of those rotator cuff muscles.…”

Section: Muscle Function: Loss Of External Rotation Strengthmentioning

confidence: 95%

How Reverse Shoulder Arthroplasty Works

Walker

Brooks

Willis

et al. 2011

Clinical Orthopaedics &Amp; Related Research

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Background The reverse total shoulder arthroplasty was introduced to treat the rotator cuff-deficient shoulder. Since its introduction, an improved understanding of the biomechanics of rotator cuff deficiency and reverse shoulder arthroplasty has facilitated the development of modern reverse arthroplasty designs. Questions/purposes We review (1) the basic biomechanical challenges associated with the rotator cuffdeficient shoulder; (2) the biomechanical rationale for newer reverse shoulder arthroplasty designs; (3) the current scientific evidence related to the function and performance of reverse shoulder arthroplasty; and (4) specific technical aspects of reverse shoulder arthroplasty. Methods A PubMed search of the English language literature was conducted using the key words reverse shoulder arthroplasty, rotator cuff arthropathy, and biomechanics of reverse shoulder arthroplasty. Articles were excluded if the content fell outside of the biomechanics of these topics, leaving the 66 articles included in this review. Results Various implant design factors as well as various surgical implantation techniques affect stability of reverse shoulder arthroplasty and patient function. To understand the implications of individual design factors, one must understand the function of the normal and the cuff-deficient shoulder and coalesce this understanding with the pathology presented by each patient to choose the proper surgical technique for reconstruction. Conclusions Several basic science and clinical studies improve our understanding of various design factors in reverse shoulder arthroplasty. However, much work remains to further elucidate the performance of newer designs and to evaluate patient outcomes using validated instruments such as the American Society for Elbow Surgery, simple shoulder test, and the Constant-Murley scores.

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Revision Arthroplasty with Use of a Reverse Shoulder Prosthesis-Allograft Composite

Cited by 131 publications

References 15 publications

The Simple Shoulder Test Is Responsive in Assessing Change Following Shoulder Arthroplasty

The Simple Shoulder Test Is Responsive in Assessing Change Following Shoulder Arthroplasty

Humeral bone defect after multiple surgeries in a post-traumatic case

How Reverse Shoulder Arthroplasty Works

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