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Conyer RT, Sperling JW. Anatomic total shoulder arthroplasty in a patient with Parsonage-Turner syndrome: a case report. JSES REVIEWS, REPORTS, AND TECHNIQUES 2023; 3:540-547. [PMID: 37928996 PMCID: PMC10625010 DOI: 10.1016/j.xrrt.2023.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Affiliation(s)
- Ryan T. Conyer
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
| | - John W. Sperling
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
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Haeffner BD, Cueto RJ, Abdelmalik BM, Hones KM, Wright JO, Srinivasan RC, King JJ, Wright TW, Werthel JD, Schoch BS, Hao KA. The association between humeral lengthening and clinical outcomes after reverse shoulder arthroplasty: a systematic review and meta-analysis. J Shoulder Elbow Surg 2023; 32:e477-e494. [PMID: 37379967 DOI: 10.1016/j.jse.2023.05.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 05/04/2023] [Accepted: 05/13/2023] [Indexed: 06/30/2023]
Abstract
BACKGROUND The purpose of this study was to evaluate the relationship between humeral lengthening and clinical outcomes after reverse shoulder arthroplasty (RSA) with stratification based on measurement method and implant design. METHODS This systematic review was performed using PRISMA-P guidelines. PubMed/Medline, Cochrane Trials, and Embase were queried for articles evaluating the relationship between humeral lengthening and clinical outcomes inclusive of range of motion (ROM), strength, outcome scores, and pertinent complications (acromial and scapular spine fractures, nerve injury) after RSA. The relationship between humeral lengthening and clinical outcomes was reported descriptively overall and stratified by measurement method and implant design (globally medialized vs. lateralized). A positive association was defined as increased humeral lengthening being associated with greater ROM, outcome scores, or a greater incidence of complications, whereas a negative association denoted that increased humeral lengthening was associated with poorer ROM, outcome scores, or a lower incidence of complications. Meta-analysis was performed to compare humeral lengthening between patients with and without fractures of the acromion or scapular spine. RESULTS Twenty-two studies were included. Humeral lengthening was assessed as the acromiohumeral distance (AHD), the distance from the acromion to the greater tuberosity (AGT), the acromion to the deltoid tuberosity (ADT), and the acromion to the distal humerus (ADH). Of 11 studies that assessed forward elevation, a positive association with humeral lengthening was found in 6, a negative association was found in 1, and 4 studies reported no association. Of studies assessing internal rotation (n = 9), external rotation (n = 7), and abduction (n = 4), all either identified a positive or lack of association with humeral lengthening. Studies assessing outcome scores (n = 11) found either a positive (n = 5) or no (n = 6) association with humeral lengthening. Of the studies that assessed fractures of the acromion and/or scapular spine (n = 6), 2 identified a positive association with humeral lengthening, 1 identified a negative association, and 3 identified no association. The single study that assessed the incidence of nerve injury identified a positive association with humeral lengthening. Meta-analysis was possible for AGT (n = 2) and AHD (n = 2); greater humeral lengthening was found in patients with fractures for studies using the AGT (mean difference 4.5 mm, 95% CI 0.7-8.3) but not the AHD. Limited study inclusion and heterogeneity prohibited identification of trends based on method of measuring humeral lengthening and implant design. CONCLUSION The relationship between humeral lengthening and clinical outcomes after RSA remains unclear and requires future investigation using a standardized assessment method.
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Affiliation(s)
- Brett D Haeffner
- College of Medicine, University of Florida, Gainesville, FL, USA
| | - Robert J Cueto
- College of Medicine, University of Florida, Gainesville, FL, USA
| | | | - Keegan M Hones
- College of Medicine, University of Florida, Gainesville, FL, USA
| | - Jonathan O Wright
- Department of Orthopaedic Surgery and Sports Medicine, University of Florida, Gainesville, FL, USA
| | | | - Joseph J King
- Department of Orthopaedic Surgery and Sports Medicine, University of Florida, Gainesville, FL, USA
| | - Thomas W Wright
- Department of Orthopaedic Surgery and Sports Medicine, University of Florida, Gainesville, FL, USA
| | | | - Bradley S Schoch
- Department of Orthopaedic Surgery, Mayo Clinic, Jacksonville, FL, USA.
| | - Kevin A Hao
- College of Medicine, University of Florida, Gainesville, FL, USA
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How common is nerve injury after reverse shoulder arthroplasty? A systematic review. J Shoulder Elbow Surg 2023; 32:872-884. [PMID: 36427756 DOI: 10.1016/j.jse.2022.10.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Revised: 10/12/2022] [Accepted: 10/20/2022] [Indexed: 11/25/2022]
Abstract
BACKGROUND Nerve injury following reverse shoulder arthroplasty (RSA) is a known risk factor with wide ranging incidences reported. This systematic review evaluates the overall incidence of nerve injury following primary and revision RSA and summarizes the characteristics of the nerve injuries reported in the current literature. METHODS A systematic review was performed using separate database searches (Pubmed, Embase, Web of Science, Cochrane) following the PRISMA guidelines. Search criteria included the title terms "reverse shoulder," "reverse total shoulder," "inverted shoulder," and "inverted total shoulder" with publication dates ranging from 01/01/2010 to 01/01/2022. Studies that reported neurological injuries and complications were included and evaluated for primary RSA, revision RSA, number of nerve injuries, and which nerves were affected. RESULTS After exclusion, our systematic review consisted of 188 articles. A total of 40,146 patients were included, with 65% female. The weighted mean age was 70.3 years. The weighted mean follow-up was 35.4 months. The rate of nerve injury after RSA was 1.3% (510 of 40,146 RSAs). The rate of injury was greater in revision RSA compared to primary RSA (2.4% vs. 1.3%). Nerve injury was most common in RSAs done for a primary diagnosis of acute proximal humerus fracture (4.0%), followed by cuff tear arthropathy (3.0%), DJD (2.6%), and inflammatory arthritis (1.7%). Massive rotator cuff tears and post-traumatic arthritis cases had the lowest nerve injury rates (1.0% and 1.4%, respectively). The axillary nerve was the most commonly reported nerve that was injured in both primary and revision RSA (0.6%), followed by the ulnar nerve (0.26%) and median nerve (0.23%). Brachial plexus injury was reported in 0.19% of overall RSA cases. CONCLUSION Based on current English literature, nerve injuries occur at a rate of 1.3% after primary RSA compared with 2.4% after revision RSA. The most common nerve injury was to the axillary nerve (0.64%), with the most common operative diagnosis associated with nerve injury after RSA being acute proximal humerus fracture (4.0%). Surgeons should carefully counsel patients prior to surgery regarding the risk of nerve injury.
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Kawamata J, Suenaga N, Oizumi N, Matsumoto H, Kikuchi A, Inoue M. Differences in incidence rate and onset timing of undiagnosed finger symptom among shoulder surgeries related to complex regional pain syndrome. THE JOURNAL OF MEDICAL INVESTIGATION 2023; 70:415-422. [PMID: 37940526 DOI: 10.2152/jmi.70.415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2023]
Abstract
The purpose of this study was to clarify the difference in onset timing and incidence of undiagnosed finger symptom (UDFS) between various shoulder surgical procedures. In this study, UDFS symptoms included the following four symptoms in the fingers;edema, limited range-of-motion, skin color changes, and abnormal sensations. UDFS cases were defined as those presenting with at least one UDFS. In result, the incidence rate of UDFS cases was 7.1% overall (58/816 shoulders), 7.4% (32/432) in arthroscopic rotator cuff repair (ARCR), 9.0% (11/122) in open rotator cuff repair (ORCR), 1.4% (2/145) in arthroscopic subacromial decompression (ASD), 13.2% (5/38) in open reduction and internal fixation (ORIF), 11.1% (3/27) in humeral head replacement, 4.8% (1/21) in anatomical total shoulder arthroplasty, and 12.9% (4/31) in reverse total shoulder arthroplasty cases. The Rate was significantly higher with ARCR compared to ASD (p<.01). About onset timing in weeks postoperatively, the ORIF group had a statistically earlier symptom onset than the Rotator cuff repair (ARCR + ORCR) group (2.4 weeks vs. 6.0 weeks, p<.01). When classifying the onset timing into before and after the removal of the abduction pillow, the ORIF group showed a statistically higher rate of onset before brace removal than the Rotator cuff repair groups (p<.01). Differences in UDFS among shoulder surgeries were demonstrated in this study. J. Med. Invest. 70 : 415-422, August, 2023.
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Affiliation(s)
- Jun Kawamata
- Department of Orthopaedic Surgery, Kaisei Hospital, Hokkaido, Japan
| | - Naoki Suenaga
- Upper Extremity Center of Joint Replacement and Endoscopic Surgery, Hokushin Orthopaedic Hospital, Hokkaido , Japan
| | - Naomi Oizumi
- Upper Extremity Center of Joint Replacement and Endoscopic Surgery, Hokushin Orthopaedic Hospital, Hokkaido , Japan
| | - Hisashi Matsumoto
- Department of Rehabilitation, Hokushin Orthopaedic Hospital, Hokkaido, Japan
| | - Akira Kikuchi
- Department of Rehabilitation, Koga Hospital, Hokkaido, Japan
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Hao KA, Dean EW, Hones KM, King JJ, Schoch BS, Dean NE, Farmer KW, Struk AM, Wright TW. Influence of humeral lengthening on clinical outcomes in reverse shoulder arthroplasty. Orthop Traumatol Surg Res 2022; 109:103502. [PMID: 36470370 DOI: 10.1016/j.otsr.2022.103502] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 08/28/2022] [Accepted: 09/07/2022] [Indexed: 12/12/2022]
Abstract
BACKGROUND Deltoid tensioning secondary to humeral lengthening after reverse shoulder arthroplasty (RSA) is commonly theorized to be crucial to improving range of motion (ROM) but may predispose patients to acromial/scapular spine fractures and neurologic injury. Clinical evidence linking patient outcomes to humeral lengthening is limited. This study assesses the relationship between humeral lengthening and clinical outcomes after RSA. METHODS A single institution review of 284 RSAs performed in 265 patients was performed. Humeral lengthening was defined as the difference in the subacromial height preoperatively to postoperatively as measured on Grashey radiographs. The subacromial height was measured as the vertical difference between the most inferolateral aspect of the acromion and the most superior aspect of the greater tuberosity. The relationship between humeral lengthening and clinical outcomes was assessed on a continuous basis. Secondarily, clinical outcomes were assessed using a dichotomous definition of humeral lengthening (≤25 vs. >25mm) based on prior clinical and biomechanical work purporting a correlation with clinical outcomes. Improvement exceeding the minimal clinically important difference (MCID) and substantial clinical benefit (SCB) for ROM and outcome scores after RSA were also compared. RESULTS Humeral lengthening demonstrated a nonlinear relationship with postoperative ROM, clinical outcome scores, and shoulder strength and their improvement preoperatively to postoperatively. Furthermore, there were minimal differences in ROM measures, outcome scores, and shoulder strength when stratified using the dichotomous definition of humeral lengthening. No difference in the proportion of patients exceeding the MCID or SCB when stratified by humeral lengthening ≤25 vs. >25mm was found. There was no difference in humeral lengthening in patients with versus without complications. CONCLUSION No clear relationship between humeral lengthening and clinical outcomes was identified. The previously purported 25mm threshold for humeral lengthening did not predict improved patient outcomes. Outcomes after RSA are multifactorial; the relationship between humeral lengthening and outcomes is likely confounded by other patient and surgical factors. LEVEL OF EVIDENCE IV; Case Series.
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Affiliation(s)
- Kevin A Hao
- College of Medicine, University of Florida, Gainesville, FL, USA
| | - Ethan W Dean
- Piedmont Orthopedics
- OrthoAtlanta, Atlanta, GA, USA
| | - Keegan M Hones
- College of Medicine, University of Florida, Gainesville, FL, USA
| | - Joseph J King
- Department of Orthopaedic Surgery and Sports Medicine, University of Florida, Gainesville, FL, USA
| | - Bradley S Schoch
- Department of Orthopedic Surgery, Mayo Clinic, Jacksonville, FL, USA
| | - Natalie E Dean
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Kevin W Farmer
- Department of Orthopaedic Surgery and Sports Medicine, University of Florida, Gainesville, FL, USA
| | - Aimee M Struk
- Department of Orthopaedic Surgery and Sports Medicine, University of Florida, Gainesville, FL, USA
| | - Thomas W Wright
- Department of Orthopaedic Surgery and Sports Medicine, University of Florida, Gainesville, FL, USA.
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Olson JJ, O’Donnell EA, Dang K, Huynh TM, Lu AZ, Kim C, Haberli J, Warner JJ. Prevalence, management, and outcomes of nerve injury after shoulder arthroplasty: a case-control study and review of the literature. JSES REVIEWS, REPORTS, AND TECHNIQUES 2022; 2:458-463. [PMID: 37588461 PMCID: PMC10426532 DOI: 10.1016/j.xrrt.2022.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 08/18/2023]
Abstract
Background Neurologic injury is a rare and potentially devastating complication of shoulder arthroplasty. Patients typically present with a mixed plexopathy or mononeuropathy, most commonly affecting the axillary and radial nerves. Given the paucity of studies available on the topic, our goal was to elucidate the prevalence of nerve injury after shoulder arthroplasty and to describe the treatment course and outcomes of neurologic injuries. Methods This is a retrospective case-control study performed at a single, urban, academic institution. Consecutive patients who underwent anatomic total shoulder arthroplasty (TSA) or reverse shoulder arthroplasty (RSA) by a single surgeon from 2014 to 2020 were reviewed, and patients with a documented nerve injury were identified. A control group of patients without nerve injury were selected in a 2:1 ratio controlling for age and procedure type (TSA vs. RSA; primary vs. revision). Data collected included demographics, comorbidities as per the Charlson Comorbidity Index, radiographic evaluations, surgical and implant details, patient-reported outcome measures, and perioperative complications. Results Of 923 patients, 33 (3.6%) sustained an iatrogenic nerve injury: 10 (2.1%) after TSA, 23 (5.0%) after RSA, and 3 (7.8%) after revision arthroplasty. Axillary mononeuropathy was most common (42%), followed by brachial plexopathies (18%). There was no significant difference in age, sex, race, body mass index, and preoperative diagnoses between groups. Patients with nerve injury had fewer comorbidities (Charlson Comorbidity Index <3, 33 vs. 65%, P<.001). Patients with nerve injury had higher rates of cervical spine pathology (15 vs. 6%; P = .15) and increased postoperative lateralization (8.9 mm [7.2] vs. 5.5 mm [7.3]; P<.06). The majority (91%) were managed with observation alone. Three (9%) underwent an additional procedure: carpal tunnel release (1, 3%), ulnar nerve decompression (1, 3%), and ulnar nerve transposition (1, 3%) for peripheral compressive neuropathies. At the final follow-up, 19 (57%) nerves fully recovered, and 14 (43%) showed mild residual sensorimotor dysfunction. The mean time to first sign of recovery and ultimate recovery were 11 (7.2) and 36 (23.5) weeks, respectively. At the final follow-up, patients with nerve injury performed worse on patient-reported outcomes, including visual analog score pain (2.2 vs. 1.0, P<.001), American Shoulder and Elbow Surgeons score (67.8 vs. 84.8, P<.001), and Single Assessment Numeric Evaluation scores (62 vs. 77, P = .009). Discussion Nerve injury after shoulder arthroplasty is rare, occurring in 3.6% of our patient population. Axillary mononeuropathy and brachial plexopathies are the most common. Most patients can be managed expectantly with observation and will recover at least partial nerve function, although clinical outcomes remain inferior to those without nerve complication.
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Affiliation(s)
| | - Evan A. O’Donnell
- Sports Medicine Service, Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, MA, USA
| | - Khang Dang
- Boston Shoulder Institute, Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, MA, USA
| | - Tiffany M. Huynh
- Boston Shoulder Institute, Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, MA, USA
| | - Amy Z. Lu
- Boston Shoulder Institute, Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, MA, USA
| | - Christine Kim
- Boston Shoulder Institute, Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, MA, USA
| | - Jillian Haberli
- Boston Shoulder Institute, Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, MA, USA
| | - Jon J.P. Warner
- Boston Shoulder Institute, Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, MA, USA
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Serrano Mateo L, Maranillo Alcaide E, Arvinius C, Sañudo Tejero JR, Marco F. Elongation of the brachial plexus after reverse shoulder arthroplasty: an anatomical study. Surg Radiol Anat 2022; 44:861-868. [PMID: 35381847 DOI: 10.1007/s00276-022-02929-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Accepted: 03/15/2022] [Indexed: 11/30/2022]
Abstract
INTRODUCTION The use of reverse shoulder arthroplasty (RSA) is becoming more extended and its clinical results are good or excellent according to the literature. The main biomechanical characteristic of RSA is that it lowers and medializes the centre of rotation of the shoulder causing an arm lengthening. Although the number of neurological complications is low (5%), there are more neurophysiological changes in the brachial plexus with RSA than with the anatomic shoulder arthroplasty. The main goal of this study was to quantify the lengthening of the terminal branches of the brachial plexus suffered after RSA implantation. MATERIALS AND METHODS 20 Embalmed cadavers were analysed. Four distances using bone references were employed to measure the lengthening of the arm and subacromial space. The brachial plexus and its terminal branches (radial, axillary, ulnar, musculocutaneous and median nerves) and the axillary artery, were identified and marked. Measurements were made to determine the change of position of the neurovascular structures, the arm lengthening and the lengthening of each nerve before and after the implantation of RSA. Two models of RSA were used: SMR®(Lima) and Delta Xtend®(DePuy-Synthes). RESULTS The mean arm elongation was 10.5 mm. The subacromial space suffers an elongation of 20.5-29.8%. All the neurovascular structures suffered elongation: median nerve 23.1%, musculocutaneous nerve 22.1%, ulnar nerve 19%, radial nerve 17%, axillary nerve 12-14.5%, axillary artery 24.8%. There were no differences in the results between the types of prosthesis. CONCLUSIONS Due to its design, the RSA causes an arm lengthening which is reflected by the elongation of the neurovascular structures of the arm.
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Affiliation(s)
- Laura Serrano Mateo
- Trauma and Orthopaedic Department, Clínico San Carlos Hospital, Professor Martin Lagos s/n st, 28040, Madrid, Spain.
| | - Eva Maranillo Alcaide
- Anatomy and Embryology Department, Medicine Faculty, Complutense University, Madrid, Spain
| | - Camilla Arvinius
- Trauma and Orthopaedic Department, Clínico San Carlos Hospital, Professor Martin Lagos s/n st, 28040, Madrid, Spain
| | | | - Fernando Marco
- Trauma and Orthopaedic Department, Clínico San Carlos Hospital, Professor Martin Lagos s/n st, 28040, Madrid, Spain
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Patel MS, Daher M, Fuller DA, Abboud JA. Incidence, Risk Factors, Prevention, and Management of Peripheral Nerve Injuries Following Shoulder Arthroplasty. Orthop Clin North Am 2022; 53:205-213. [PMID: 35365265 DOI: 10.1016/j.ocl.2021.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
In this article, the authors review the incidence and causes of iatrogenic peripheral nerve injuries following shoulder arthroplasty and provide preventative measures to decrease nerve injury rate and management options. They describe common direct and indirect causes of injury such as laceration and retractor use versus arm positioning and lengthening, respectively. Preventative measures include an understanding of anatomy and high-risk locations in the shoulder, minimizing extreme ranges of arm motion and utilization of intraoperative nerve monitoring. Lastly, the authors review diagnosis and management of neurologic symptoms including how and when to use electrodiagnostic studies, nerve grafts, transfers, or muscle/tendon transfers.
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Affiliation(s)
- Manan S Patel
- Department of Orthopaedic Surgery, Cooper University Hospital, Camden, NJ, USA
| | - Mohammad Daher
- Faculty of Medicine, Saint-Joseph University, Beirut, Lebanon
| | - David A Fuller
- Department of Orthopaedic Surgery, Cooper Medical School of Rowan University, Camden, NJ, USA
| | - Joseph A Abboud
- Department of Orthopaedic Surgery, The Rothman Institute at Thomas Jefferson University, Rothman Orthopaedic Institute at Thomas Jefferson University, 925 Chestnut Street 5th Floor, Philadelphia, PA 19107, USA.
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Lee JH, Chun YM, Kim DS, Lee DH, Shin SJ. Early restoration of shoulder function in patients with the Grammont prosthesis compared to lateralized humeral design in reverse shoulder arthroplasty. J Shoulder Elbow Surg 2021; 30:2533-2542. [PMID: 33813010 DOI: 10.1016/j.jse.2021.03.145] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 03/19/2021] [Accepted: 03/22/2021] [Indexed: 02/01/2023]
Abstract
BACKGROUND This study aimed to compare the clinical outcomes and radiographic parameters of patients after reverse shoulder arthroplasty (RSA) between the Grammont prosthesis and lateralized humeral design prosthesis. METHODS A total of 114 patients who underwent RSA with a lateralized humeral design (group L; 71 shoulders) and medialized humeral design (group M; 43 shoulders) prosthesis for cuff tear arthropathy or irreparable rotator cuff tear were enrolled. Clinical outcomes including visual analog scale (VAS), American Shoulder and Elbow Surgeons Standardized Shoulder Assessment Form (ASES), and Constant scores and range of motion (ROM) were serially followed up at postoperative 3, 6, 12, and 24 months. Radiographic parameters were measured to evaluate preoperative and postoperative status. RESULTS Both prostheses demonstrated similar clinical outcomes and shoulder function preoperatively and at postoperative 2 years (P >.05). However, patients in group M had significantly better postoperative active forward flexion (postoperative 3 months, 115° ± 12° vs. 101° ± 14°; P <.001; 6 months, 125° ± 13° vs. 118° ± 13°; P <.013) and abduction (3 months, 105° ± 12° vs. 98° ± 12°; P = .002); VAS (3 months, 3.1 ± 1.2 vs. 3.7 ± 1.4; P = .031; 6 months, 2.3 ± 1.1 vs. 2.8 ± 1.3; P = .038); ASES (3 months, 64.2 ± 7.0 vs. 60.4 ± 9.2; P = .022; 6 months, 70.6 ± 6.0 vs. 66.6 ± 8.1; P = .007); and Constant scores (6 months, 59.6 ± 6.9 vs. 55.7 ± 9.3; P = .020). Group L showed a significantly lower rate of scapular notching than group M (15.5% vs. 41.8%; P < .001). The position of the proximal humerus in group L was more lateralized and less distalized than in group M after RSA. CONCLUSIONS RSA with both the Grammont and lateralized humeral design prostheses provided similar shoulder ROM restoration and functional improvements at a minimum of 2 years. However, patients with a humeral lateralized prosthesis showed slower recovery of shoulder function and ROM up to postoperative 6 months despite a lower incidence of scapular notching.
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Affiliation(s)
- Jae-Hoo Lee
- Department of Orthopaedic Surgery, Inje University, Ilsan Paik Hospital, Goyang-si, Republic of Korea
| | - Yong-Min Chun
- Department of Orthopaedic Surgery, Arthroscopy and Joint Research Institute, Severance Hospital, Yonsei University, College of Medicine, Seoul, Republic of Korea
| | - Doo-Sup Kim
- Department of Orthopaedic Surgery, Wonju College of Medicine, Wonju Severance Christian Hospital, Yonsei University, Wonju, Republic of Korea
| | - Doo-Hyung Lee
- Department of Orthopaedic Surgery, School of Medicine, Ajou University, Suwon, Republic of Korea
| | - Sang-Jin Shin
- Department of Orthopaedic Surgery, Ewha Shoulder Disease Center, Seoul Hospital, Ewha Womans University School of Medicine, Seoul, Republic of Korea.
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Nabergoj M, Denard PJ, Collin P, Trebše R, Lädermann A. Radiological changes, infections and neurological complications after reverse shoulder arthroplasty related to different design types and their rates: Part II. EFORT Open Rev 2021; 6:1109-1121. [PMID: 34909229 PMCID: PMC8631237 DOI: 10.1302/2058-5241.6.210040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Early reported complication rates with the Grammont-type reverse shoulder arthroplasty (RSA) were very high, up to 24%.A 'problem' is defined as an intraoperative or postoperative event that is not likely to affect the patient's final outcome, such as intraoperative cement extravasation and radiographic changes. A 'complication' is defined as an intraoperative or postoperative event that is likely to affect the patient's final outcome, including infection, neurologic injury and intrathoracic central glenoid screw placement.Radiographic changes around the glenoid or humeral components of the RSA are very frequently observed and described in the literature.High complication rates related to the Grammont RSA design led to development of non-Grammont designs which led to a dramatic fall in the majority of complications.The percentage of radiological changes after RSA is not negligible and remains unsolved, despite a decrease in its occurrence in the last decade. However, such changes should be now considered as simple problems because they rarely have a negative influence on the patient's final outcome, and their prevalence has dramatically decreased.With further changes in indications and designs for RSA, it is crucial to accurately track the rates and types of complications to justify its new designs and increased indications. Cite this article: EFORT Open Rev 2021;6:1109-1121. DOI: 10.1302/2058-5241.6.210040.
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Affiliation(s)
- Marko Nabergoj
- Valdoltra Orthopaedic Hospital, Ankaran, Slovenia
- Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | | | - Philippe Collin
- Centre Hospitalier Privé Saint-Grégoire (Vivalto Santé), Saint- Grégoire, France
| | - Rihard Trebše
- Valdoltra Orthopaedic Hospital, Ankaran, Slovenia
- Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Alexandre Lädermann
- Division of Orthopaedics and Trauma Surgery, La Tour Hospital
- Division of Orthopaedics and Trauma Surgery, Department of Surgery, Geneva University Hospitals, Geneva, Switzerland
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Nabergoj M, Denard PJ, Collin P, Trebše R, Lädermann A. Mechanical complications and fractures after reverse shoulder arthroplasty related to different design types and their rates: part I. EFORT Open Rev 2021; 6:1097-1108. [PMID: 34909228 PMCID: PMC8631242 DOI: 10.1302/2058-5241.6.210039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
The initial reverse shoulder arthroplasty (RSA), designed by Paul Grammont, was intended to treat rotator cuff tear arthropathy in elderly patients. In the early experience, high complication rates (up to 24%) and revision rates (up to 50%) were reported.The most common complications reported were scapular notching, whereas clinically more relevant complications such as instability and acromial fractures were less commonly described.Zumstein et al defined a 'complication' following RSA as any intraoperative or postoperative event that was likely to have a negative influence on the patient's final outcome.High rates of complications related to the Grammont RSA design led to development of non-Grammont designs, with 135 or 145 degrees of humeral inclination, multiple options for glenosphere size and eccentricity, improved baseplate fixation which facilitated glenoid-sided lateralization, and the option of humeral-sided lateralization.Improved implant characteristics combined with surgeon experience led to a dramatic fall in the majority of complications. However, we still lack a suitable solution for several complications, such as acromial stress fracture. Cite this article: EFORT Open Rev 2021;6:1097-1108. DOI: 10.1302/2058-5241.6.210039.
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Affiliation(s)
- Marko Nabergoj
- Valdoltra Orthopaedic Hospital, Ankaran, Slovenia
- Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Patrick J. Denard
- Department of Orthopaedic & Rehabilitation, Oregon Health & Science University, Portland, Oregon, USA
| | - Philippe Collin
- Centre Hospitalier Privé Saint-Grégoire (Vivalto Santé), Saint-Grégoire, France
| | - Rihard Trebše
- Valdoltra Orthopaedic Hospital, Ankaran, Slovenia
- Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Alexandre Lädermann
- Division of Orthopaedics and Trauma Surgery, La Tour Hospital, Meyrin, Switzerland
- Division of Orthopaedics and Trauma Surgery, Department of Surgery, Geneva University Hospitals, Geneva, Switzerland
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12
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Patel MS, Wilent WB, Gutman MJ, Abboud JA. Incidence of peripheral nerve injury in revision total shoulder arthroplasty: an intraoperative nerve monitoring study. J Shoulder Elbow Surg 2021; 30:1603-1612. [PMID: 33096272 DOI: 10.1016/j.jse.2020.09.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 09/18/2020] [Accepted: 09/21/2020] [Indexed: 02/01/2023]
Abstract
BACKGROUND The incidence of nerve injuries in revision total shoulder arthroplasty (TSA) is not well defined in the literature and may be higher than that in primary procedures, with 1 study reporting a complication rate of 50% for shoulder revisions. Given that continuous intraoperative nerve monitoring (IONM) can be an effective tool in diagnosing evolving neurologic dysfunction and preventing postoperative injuries, the purpose of this study was to report on IONM data and nerve injury rates in a series of revision TSAs. METHODS A retrospective cohort review of consecutive patients who underwent revision TSA was performed from January 2016 to March 2020. Indications for revision included infection (n = 7); failed total arthroplasty and hemiarthroplasty secondary to pain, dysfunction, and/or loose components (n = 36); and periprosthetic fracture (n = 1). Of the shoulders, 32 underwent revision to a reverse TSA, 6 underwent revision to an anatomic TSA, and 6 underwent spacer placement. IONM data included transcranial electrical motor evoked potentials (MEPs), somatosensory evoked potentials, and free-run electromyography. The motor alert threshold was set at ≥80% signal attenuation in any peripheral nerve. Patients were screened for neurologic deficits immediately following surgery, prior to administration of an interscalene nerve block, and during the first 2 postoperative visits. Additional data collection included surgical indication, sex, laterality, age at surgery, procedure performed, body mass index, history of tobacco use, Charlson Comorbidity Index, medical history, and preoperative range of motion. RESULTS A total of 44 shoulders in 38 patients were included, with a mean age of 63.2 years (standard deviation, 13.0 years). Of the procedures, 22.4% (n = 10) had an MEP alert, with 8 isolated to a single nerve (7 axillary and 1 radial) and 1 isolated to the axillary and musculocutaneous nerves. Only 1 patient experienced a major brachial plexus alert involving axillary, musculocutaneous, radial, ulnar, and median nerve MEP alerts, as well as ulnar and median nerve somatosensory evoked potential alerts. Age, sex, body mass index, Charlson Comorbidity Index, and preoperative range of motion were not found to be significantly different between cases in which an MEP alert occurred and cases with no MEP alerts. In the postoperative period, no minor or major nerve injuries were found whereas distal peripheral neuropathy developed in 4 patients (9.1%). CONCLUSION Among 44 surgical procedures, no patients (0%) had a major or minor nerve injury postoperatively and 4 patients (9.1%) complained of distal peripheral neuropathy postoperatively. In this study, we have shown that through the use of IONM, the rate of minor and major nerve injuries can be minimized in revision shoulder arthroplasty.
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Affiliation(s)
- Manan S Patel
- Department of Shoulder and Elbow Surgery, Rothman Orthopaedic Institute, Philadelphia, PA, USA.
| | | | - Michael J Gutman
- Department of Shoulder and Elbow Surgery, Rothman Orthopaedic Institute, Philadelphia, PA, USA
| | - Joseph A Abboud
- Department of Shoulder and Elbow Surgery, Rothman Orthopaedic Institute, Philadelphia, PA, USA
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Vajapey SP, Contreras ES, Cvetanovich GL, Neviaser AS. Neurologic complications in primary anatomic and reverse total shoulder arthroplasty: A review. J Clin Orthop Trauma 2021; 20:101475. [PMID: 34178600 PMCID: PMC8213914 DOI: 10.1016/j.jcot.2021.06.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 06/01/2021] [Accepted: 06/07/2021] [Indexed: 11/17/2022] Open
Abstract
Neurologic injury during shoulder replacement is one of the less common complications of the procedure, however the clinical implications can be significant. The purpose of this paper is to review the current literature on neurologic complications in various types of shoulder replacement and provide recommendations regarding avoidance, evaluation, and management of these complications.
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Affiliation(s)
- Sravya P. Vajapey
- Corresponding author. Department of Orthopaedics, The Ohio State University Wexner Medical Center, 241 W. 11th Avenue, Suite 6081, Columbus, Ohio, 43201.
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Florczynski M, Paul R, Leroux T, Baltzer H. Prevention and Treatment of Nerve Injuries in Shoulder Arthroplasty. J Bone Joint Surg Am 2021; 103:935-946. [PMID: 33877057 DOI: 10.2106/jbjs.20.01716] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
➤ Nerve injuries during shoulder arthroplasty have traditionally been considered rare events, but recent electrodiagnostic studies have shown that intraoperative nerve trauma is relatively common. ➤ The brachial plexus and axillary and suprascapular nerves are the most commonly injured neurologic structures, with the radial and musculocutaneous nerves being less common sites of injury. ➤ Specific measures taken during the surgical approach, component implantation, and revision surgery may help to prevent direct nerve injury. Intraoperative positioning maneuvers and arm lengthening warrant consideration to minimize indirect injuries. ➤ Suspected nerve injuries should be investigated with electromyography preferably at 6 weeks and no later than 3 months postoperatively, allowing for primary reconstruction within 3 to 6 months of injury when indicated. Primary reconstructive options include neurolysis, direct nerve repair, nerve grafting, and nerve transfers. ➤ Secondary reconstruction is preferred for injuries presenting >12 months after surgery. Secondary reconstructive options with favorable outcomes include tendon transfers and free functioning muscle transfers.
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Affiliation(s)
- Matthew Florczynski
- Departments of Orthopaedic Surgery (M.F., R.P., and T.L.) and Plastic and Reconstructive Surgery (R.P. and H.B.), University of Toronto, Toronto, Ontario, Canada
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15
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Factors Influencing Appropriate Implant Selection and Position in Reverse Total Shoulder Arthroplasty. Orthop Clin North Am 2021; 52:157-166. [PMID: 33752837 DOI: 10.1016/j.ocl.2020.12.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Reverse shoulder arthroplasty has increased in popularity and has provided improved but somewhat variable results. These variable outcomes may be related to many factors, including implant design, component positioning, specific indication, and patient anatomy. The original Grammont design provided a solution to the high failure rate at the time but was found to have a high rate of scapular notching and poor restoration of rotation. Modern lateralized designs are more consistent in reducing scapular notching while improving range of motion, especially in regards to external rotation. This review article summarizes the effects of modern reverse shoulder prostheses on outcomes.
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Crum RJ, de SA DL, Su FL, Lesniak BP, Lin A. Decreased complication profile and improved clinical outcomes of primary reverse total shoulder arthroplasty after 2010: A systematic review. Shoulder Elbow 2021; 13:154-167. [PMID: 33897847 PMCID: PMC8039761 DOI: 10.1177/1758573219852977] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 03/31/2019] [Accepted: 04/29/2019] [Indexed: 01/23/2023]
Abstract
The purpose of this review was to update the complication profile of reverse total shoulder arthroplasty (rTSA) post-2010, given greater procedural familiarity, improved learning curves, enhanced implant designs, and increased attention to the nuances of patient selection. Three electronic databases were searched and screened in duplicate from 1 January 2010 to 16 December 2018 based on predetermined criteria. Twenty-two studies examining 1455 patients (26% male; mean age: 73.4 ± 3.6; mean follow-up: 23.4 ± 14.3 months) were reviewed. Post-operative motion ranged a mean 122.4° ± 11.5° flexion, 109° ± 19.4° abduction, and 33° ± 11.2°/41° ± 5° external/internal rotation. Post-operative mean Constant score was 58.9 ± 10.1, American Shoulder Elbow Surgeon score was 73.4 ± 6.1, Simple Shoulder Test score was 63.5 ± 6.5, and a Visual Analog Scale pain score was 1.6 ± 0.9. The overall complication rate was 18.2% and major complication rate was 15.4%. Compared to pre-2010, the overall complication rate of 18.2% is lower than previous rates of 19%-68%, with the rate of "major" complications dropping three-fold from 15.4% to 4.6%. The data suggest that rTSA is a safe and efficacious alternative to aTSA and HA, and the "stale" nature of previous complication profiles are points fundamental to perioperative discussions surrounding rTSA.
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Affiliation(s)
- Raphael J Crum
- University of Pittsburgh School of Medicine, Pittsburgh, PA, USA,Raphael J Crum, University of Pittsburgh
School of Medicine, 3550 Terrace Street, Pittsburgh, PA 15213, USA.
| | | | - Favian L Su
- University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Bryson P Lesniak
- Center for Sports Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Albert Lin
- Center for Sports Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
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Offset in Reverse Shoulder Arthroplasty: Where, When, and How Much. J Am Acad Orthop Surg 2021; 29:89-99. [PMID: 33264136 DOI: 10.5435/jaaos-d-20-00671] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 10/05/2020] [Indexed: 02/01/2023] Open
Abstract
Since the advent of Paul Grammont medialized reverse shoulder prosthesis in the 1980s, shoulder surgeons have had a reliable option for treating glenohumeral joint disease in the rotator cuff-deficient shoulder. However, the prosthesis is not without complications, including scapular notching, instability, and limited rotational motion. Implants have been modified from the original design in an effort to reduce the risk of these complications. Increasing the offset, or lateralization, of the glenosphere may reduce the rate of scapular notching, reduce impingement, increase stability, and improve rotational motion. However, a more lateralized glenosphere could lead to baseplate loosening, decreased deltoid efficiency, and increased risk of acromial fracture. Increasing the offset on the humeral side, rather than the glenosphere side, may be able to reduce the rate of scapular notching and improve rotational motion without an increased risk of baseplate loosening. Humeral lateralization also improves tension of the rotator cuff and maintains good deltoid efficiency. However, humeral lateralization provides little stability benefit, and acromial fracture remains a risk. Ultimately, the surgeon must be familiar with the implants he or she is using and the options for both glenosphere and humeral lateralization to ensure that risks and benefits can be weighed for each patient.
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Abstract
Background Persistent anterior shoulder pain is an under-reported complication after reverse total shoulder arthroplasty (RTSA). The purpose of this study was to determine the effectiveness of open conjoint tendon release in patients with anterior shoulder pain due to conjoint tendinitis after RTSA. Methods Open conjoint tendon release was performed by the senior author from June 2014 to November 2018 in patients with persistent anterior shoulder pain after RTSA. Patients were evaluated preoperatively and at a minimum of 1 year postoperatively by phone interview with patient-reported outcome scores including a visual analog scale score for pain and the American Shoulder and Elbow Surgeons score. Results We evaluated 11 of 12 patients (92% follow-up) at a minimum of 1 year (average, 27 ± 11 months) after conjoint tendon release. American Shoulder and Elbow Surgeons and visual analog scale pain scores improved from 29.0 ± 22.1 and 7.3 ± 2.0, respectively, preoperatively to 58.2 ± 30.6 and 3.1 ± 3.5, respectively, postoperatively, after open conjoint tendon release (P = .02 and P = .003, respectively). Of the patients, 45% (5 of 11) reported improvement but with some coracoid pain after the release whereas 55% (6 of 11) reported no coracoid pain after the release. No complications occurred as a result of the release, and no patients required reoperation. Conclusion Our results suggest that conjoint tendinitis may be a cause of persistent postoperative anterior shoulder pain after RTSA and open conjoint tendon release is a successful treatment.
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Lee JH, Chun YM, Kim DS, Lee DH, Shin SJ. Clinical comparison of humeral-lateralization reverse total shoulder arthroplasty between patients with irreparable rotator cuff tear and patients with cuff tear arthropathy. JSES Int 2020; 4:694-700. [PMID: 32939508 PMCID: PMC7478985 DOI: 10.1016/j.jseint.2020.03.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Background This study aimed to compare the clinical and radiologic outcomes between patients with irreparable cuff tears (ICTs) and those with cuff tear arthropathy (CTA) after reverse total shoulder arthroplasty (RTSA) with a humeral-lateralization prosthesis. Methods A total of 127 patients with ICTs and CTA who underwent RTSA were enrolled and matched at a 1:2 ratio by propensity score. Preoperative shoulder function was assessed for all patients. Radiologic parameters including the acromion-deltoid tuberosity (ADT) distance, lateral humeral offset, and scapular notching were evaluated. Results Thirty-four patients in the ICT group and 68 patients in the CTA group were matched for comparison. Preoperatively, mean active forward flexion in the ICT group (89.7° ± 29.4°) was significantly better than that in the CTA group (65.5° ± 24.0°, P < .001). In the CTA group, fatty infiltration of the supraspinatus was worse (3.7 ± 0.5) and the ADT distance was shorter (134.0 ± 12.0 mm) compared with the ICT group preoperatively (3.3 ± 0.8 [P = .008] and 140.7 ± 12.5 mm [P = .001], respectively). There was no significant difference in postoperative functional or radiologic outcomes between the 2 groups. However, gains in active forward flexion (37.9° in ICT group vs. 61.5° in CTA group, P < .01) and abduction (42.1° in ICT group vs. 60.6° in CTA group, P < .01) were significantly greater in the CTA group than in the ICT group. Conclusions Shoulder function was significantly improved after RTSA regardless of the preoperative diagnosis. Postoperatively, radiologic findings were not significantly different between the 2 groups. Due to the fact that preoperative range of motion and rotator cuff status were better in patients with ICTs, improvements in active forward flexion and abduction were significantly greater in patients with CTA.
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Affiliation(s)
- Jae-Hoo Lee
- Department of Orthopaedic Surgery, Inje University, Ilsan Paik Hospital, Goyang-si, Republic of Korea
| | - Yong-Min Chun
- Department of Orthopaedic Surgery, Arthroscopy and Joint Research Institute, Severance Hospital, College of Medicine, Yonsei University, Seoul, Republic of Korea
| | - Doo-Sup Kim
- Department of Orthopaedic Surgery, Wonju College of Medicine, Wonju Severance Christian Hospital, Yonsei University, Wonju, Republic of Korea
| | - Doo-Hyung Lee
- Department of Orthopaedic Surgery, School of Medicine, Ajou University, Suwon, Republic of Korea
| | - Sang-Jin Shin
- Department of Orthopaedic Surgery, Ewha Shoulder Disease Center, Seoul Hospital, Ewha Womans University School of Medicine, Seoul, Republic of Korea
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Kim HJ, Kwon TY, Jeon YS, Kang SG, Rhee YG, Rhee SM. Neurologic deficit after reverse total shoulder arthroplasty: correlation with distalization. J Shoulder Elbow Surg 2020; 29:1096-1103. [PMID: 32081632 DOI: 10.1016/j.jse.2019.11.014] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Revised: 11/15/2019] [Accepted: 11/23/2019] [Indexed: 02/01/2023]
Abstract
BACKGROUND Neurologic problems after reverse total shoulder arthroplasty (RTSA) have been reported, but there are a lack of studies regarding which nerve(s) are damaged and the outcomes for the patients who had neurologic complications after RTSA. The purpose of this study was to assess the prevalence and outcomes of neurologic deficit after RTSA and to evaluate the correlation between nonanatomic rearrangement of the shoulder joint and neurologic complications after RTSA. We hypothesized that the neurologic deficit was associated with excessive distalization or lateralization of the humerus after RTSA. METHODS RTSA was performed on 182 consecutive shoulders with cuff tear arthropathy. Comparative analysis was performed on 34 shoulders with (group 1) and 148 shoulders without (group 2) neurologic deficit. RESULTS The mean follow-up period in the study was 58.5 months (range: 24-124). The mean age was 71.5 ± 7.7 years in group 1 and 73.1 ± 7.2 years in group 2. Neurologic deficit after RTSA was found in 34 shoulders (19%). The mean postoperative acromiohumeral distance was 34.1 ± 11.0 mm in group 1 and 29.4 ± 7.6 mm in group 2 (P = .015). Significant differences in terms of postoperative distalization of the humerus were seen between group 1 (24.5 ± 9.4 mm) and group 2 (20.5 ± 8.3 mm) (P = .009). The most common forms of neurologic deficit after RTSA were axillary nerve (41.2%) and radial nerve (15%) injuries. Thirty shoulders (88%) had neuropraxia, and 4 shoulders (12%) had axonotmesis. By conservative treatment, all patients with neurologic complications achieved complete recovery without any additional surgery; the mean recovery period was 7.4 months (range: 2-38 months). CONCLUSION Neurologic deficit occurred in 19% of patients who underwent RTSA, and it was significantly correlated with humeral distalization after surgery. Axillary nerve was mostly involved, and all patients with neurologic deficit achieved complete recovery without any additional surgery.
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Affiliation(s)
- Hwan Jin Kim
- Shoulder & Elbow Clinic. Department of Orthopaedic Surgery, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Tae Yoon Kwon
- Shoulder & Elbow Clinic. Department of Orthopaedic Surgery, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Yoon Sang Jeon
- Department of Orthopaedic Surgery, College of Medicine, Inha University, Incheon, Republic of Korea
| | - Se Gu Kang
- Shoulder & Elbow Clinic. Department of Orthopaedic Surgery, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Yong Girl Rhee
- Shoulder & Elbow Clinic. Department of Orthopaedic Surgery, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Sung-Min Rhee
- Shoulder & Elbow Clinic. Department of Orthopaedic Surgery, College of Medicine, Kyung Hee University, Seoul, Republic of Korea.
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Treatment of cephalotuberosity fractures in elderly patients treated by reverse shoulder prosthesis: a study of functional results in relation to deltoid tension. INTERNATIONAL ORTHOPAEDICS 2019; 44:147-154. [PMID: 31705166 DOI: 10.1007/s00264-019-04427-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 09/23/2019] [Indexed: 10/25/2022]
Abstract
INTRODUCTION The treatment of proximal humerus fractures is a therapeutic challenge in the elderly as the functional demands of these patients are high. We postulated that there may be a relationship between functional results and deltoid tension when these fractures are treated with a reverse prosthesis. This study was performed to determine the optimal tension of the deltoid. The primary outcome was the constant score in relation to humeral length at the final follow-up. MATERIALS AND METHODS Our retrospective cohort consisted of 45 patients treated with a reverse fracture prosthesis during the period from January 2010 to July 2017. The fractures were all classified as Neer III or IV, 91% of our patients were women and the average age was 82 years. RESULTS Constant score and antepulsion were improved with humeral elongation between 10 and 25 mm (p < 0.02 and p < 0.05, respectively). External rotation was improved with humeral elongation (p < 0.03). CONCLUSION Tuberosity reinsertion improves mobility in patients treated surgically for a reverse fracture prosthesis. The recovery of anatomical retroversion seems of fundamental importance, and we confirmed that deltoid tension that must also be taken into account to improve functional results of reverse shoulder prosthesis on fracture. The ideal humeral elongation seems to be between 10 and 25 mm, in relation to the contralateral side, to obtain better functional results.
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Affiliation(s)
- Robert Z Tashjian
- Department of Orthopaedics, University of Utah School of Medicine, Salt Lake City, Utah
| | - Peter N Chalmers
- Department of Orthopaedics, University of Utah School of Medicine, Salt Lake City, Utah
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