Radiographic evaluation of humeral head reconstruction with stemmed and stemless spherical implants compared with stemless elliptical head implants
Background: The purpose of this study was to compare the accuracy of anatomic reconstruction of three different humeral head designs after anatomic total shoulder arthroplasty. Methods: Postoperative radiographs of 117 patients who underwent anatomic total shoulder arthroplasty with three different...
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| Format: | Article |
| Language: | English |
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Elsevier
2021-09-01
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| Series: | JSES International |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S266663832100133X |
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| author | Leonardo Cavinatto, MD, PhD Omar Khatib, MD Alexander Martusiewicz, MD Denise M. Koueiter, MS Brett P. Wiater, MD J. Michael Wiater, MD |
| author_facet | Leonardo Cavinatto, MD, PhD Omar Khatib, MD Alexander Martusiewicz, MD Denise M. Koueiter, MS Brett P. Wiater, MD J. Michael Wiater, MD |
| author_sort | Leonardo Cavinatto, MD, PhD |
| collection | DOAJ |
| description | Background: The purpose of this study was to compare the accuracy of anatomic reconstruction of three different humeral head designs after anatomic total shoulder arthroplasty. Methods: Postoperative radiographs of 117 patients who underwent anatomic total shoulder arthroplasty with three different implant designs (stemmed spherical, stemless spherical, and stemless elliptical) were analyzed for landmarks that represented the prearthritic state and final implant position. We assessed the change in center of rotati7on and humeral head height on the anteroposterior view and the percentage of prosthesis overhang on the axillary lateral view. A modified anatomic reconstruction index, a compound score that rated each of the 3 parameters from 0 to 2, was created to determine the overall accuracy of the reconstruction. Results: Excellent modified anatomic reconstruction index scores (5 or 6 points) were achieved by 68.1% of the cases in the stemless elliptical group compared with 33.3% of the cases in the stemless spherical group and by 28.3% of the cases in the stemmed spherical group (P = .001).The mean difference in restoration of humeral head height (P < .001) and percentage of prosthesis overhang (P < .001) was superior for the stemless elliptical group compared with the two other spherical head groups. There was no difference between groups for the shift in center of rotation (P = .060). Conclusions: In this radiographic investigation comparing three different humeral head designs with respect to anatomic restoration parameters, the stemless elliptical implant more closely restored the geometry of the prearthritic humeral head as assessed by humeral head height, prosthesis overhang, and a compound reconstruction score. |
| first_indexed | 2024-12-16T08:06:54Z |
| format | Article |
| id | doaj.art-a45a6139c39441b8b76ef64ad80c437a |
| institution | Directory Open Access Journal |
| issn | 2666-6383 |
| language | English |
| last_indexed | 2024-12-16T08:06:54Z |
| publishDate | 2021-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | JSES International |
| spelling | doaj.art-a45a6139c39441b8b76ef64ad80c437a2022-12-21T22:38:26ZengElsevierJSES International2666-63832021-09-0155889893Radiographic evaluation of humeral head reconstruction with stemmed and stemless spherical implants compared with stemless elliptical head implantsLeonardo Cavinatto, MD, PhD0Omar Khatib, MD1Alexander Martusiewicz, MD2Denise M. Koueiter, MS3Brett P. Wiater, MD4J. Michael Wiater, MD5Department of Orthopaedic Surgery, Beaumont Health, Royal Oak, MI, USADepartment of Orthopaedic Surgery, Beaumont Health, Royal Oak, MI, USADepartment of Orthopaedic Surgery, Beaumont Health, Royal Oak, MI, USADepartment of Orthopaedic Surgery, Beaumont Health, Royal Oak, MI, USADepartment of Orthopaedic Surgery, Beaumont Health, Royal Oak, MI, USACorresponding author: J. Michael Wiater, MD, Department of Orthopaedic Surgery, Beaumont Health System, 3535 W 13 Mile Road, Suite 744, Royal Oak, MI 48073, USA.; Department of Orthopaedic Surgery, Beaumont Health, Royal Oak, MI, USABackground: The purpose of this study was to compare the accuracy of anatomic reconstruction of three different humeral head designs after anatomic total shoulder arthroplasty. Methods: Postoperative radiographs of 117 patients who underwent anatomic total shoulder arthroplasty with three different implant designs (stemmed spherical, stemless spherical, and stemless elliptical) were analyzed for landmarks that represented the prearthritic state and final implant position. We assessed the change in center of rotati7on and humeral head height on the anteroposterior view and the percentage of prosthesis overhang on the axillary lateral view. A modified anatomic reconstruction index, a compound score that rated each of the 3 parameters from 0 to 2, was created to determine the overall accuracy of the reconstruction. Results: Excellent modified anatomic reconstruction index scores (5 or 6 points) were achieved by 68.1% of the cases in the stemless elliptical group compared with 33.3% of the cases in the stemless spherical group and by 28.3% of the cases in the stemmed spherical group (P = .001).The mean difference in restoration of humeral head height (P < .001) and percentage of prosthesis overhang (P < .001) was superior for the stemless elliptical group compared with the two other spherical head groups. There was no difference between groups for the shift in center of rotation (P = .060). Conclusions: In this radiographic investigation comparing three different humeral head designs with respect to anatomic restoration parameters, the stemless elliptical implant more closely restored the geometry of the prearthritic humeral head as assessed by humeral head height, prosthesis overhang, and a compound reconstruction score.http://www.sciencedirect.com/science/article/pii/S266663832100133XStemmed humeral headStemless humeral headStemless Elliptical humeral headAnatomic total Shoulder arthroplastyRadiographic studyHumeral head reconstruction |
| spellingShingle | Leonardo Cavinatto, MD, PhD Omar Khatib, MD Alexander Martusiewicz, MD Denise M. Koueiter, MS Brett P. Wiater, MD J. Michael Wiater, MD Radiographic evaluation of humeral head reconstruction with stemmed and stemless spherical implants compared with stemless elliptical head implants JSES International Stemmed humeral head Stemless humeral head Stemless Elliptical humeral head Anatomic total Shoulder arthroplasty Radiographic study Humeral head reconstruction |
| title | Radiographic evaluation of humeral head reconstruction with stemmed and stemless spherical implants compared with stemless elliptical head implants |
| title_full | Radiographic evaluation of humeral head reconstruction with stemmed and stemless spherical implants compared with stemless elliptical head implants |
| title_fullStr | Radiographic evaluation of humeral head reconstruction with stemmed and stemless spherical implants compared with stemless elliptical head implants |
| title_full_unstemmed | Radiographic evaluation of humeral head reconstruction with stemmed and stemless spherical implants compared with stemless elliptical head implants |
| title_short | Radiographic evaluation of humeral head reconstruction with stemmed and stemless spherical implants compared with stemless elliptical head implants |
| title_sort | radiographic evaluation of humeral head reconstruction with stemmed and stemless spherical implants compared with stemless elliptical head implants |
| topic | Stemmed humeral head Stemless humeral head Stemless Elliptical humeral head Anatomic total Shoulder arthroplasty Radiographic study Humeral head reconstruction |
| url | http://www.sciencedirect.com/science/article/pii/S266663832100133X |
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