Acute surgical management of proximal humerus fractures: ORIF vs. hemiarthroplasty vs. reverse shoulder arthroplasty

Intramedullary versus locking plate fixation for proximal humerus fractures: indications and technical considerations

Background

The incidence of proximal humerus fractures (PHFs) continues to increase with an aging population, and intramedullary nailing (IMN) and locking plate fixation are two commonly employed techniques for the surgical management of PHF. However, the optimal fixation method can be a source of ongoing controversy. Some influencing factors include the extent of humeral head involvement, fracture complexity, patient age, and surgeon preference. There are many studies that provide a mix of data either when comparing the two techniques or analyzing them in isolation. The aim of this review is to further elucidate the indications and technical considerations involved specifically in IMN vs. locking plate fixation for PHF to further aid orthopedic surgeons when choosing surgical management.

Methods

A narrative approach was chosen for this review allowing for a comprehensive review of literature, including recent findings pertaining to the comparison of management options for PHF. A comprehensive literature search was conducted using the PubMed, Embase, and Cochrane Library databases. The inclusion criteria involved studies that discussed "proximal humerus fracture" and either "intramedullary nail" or "locking plate fixation."

Results

Complications such as avascular necrosis, hardware failure, additional surgical interventions, infection, fracture redisplacement, rotator cuff rupture, and nonunion did not show significant differences between the two groups. Newer generation humeral nails have minimized early complications. As both techniques undergo further refinement and utilization when specifically indicated, functional outcomes, potential complications, and postoperative pain continue to be improved.

Conclusion

The available evidence suggests that both intramedullary nails and locking plates can effectively restore shoulder function in the treatment of displaced proximal humeral fractures, with unclear superiority of either method. The choice of technique should be tailored to patient factors such as fracture type, age, bone quality, and functional expectations. Surgeon experience also plays a role. While certain presentations may exhibit trends that favor one fixation, no specific technique can be universally recommended. Both IMN and LP have shown comparable and satisfactory outcomes, and the final fixation method chosen should take into account the unique characteristics of each patient.

Electromyographic analysis of selected shoulder muscles during shoulder rehabilitation exercises in patients after reverse total shoulder arthroplasty

BACKGROUND

Reverse shoulder arthroplasty (RSA) aims to restore function in patients with rotator cuff failure and joint arthropathy. After surgery, patients are routinely referred to a rehabilitation specialist to regain range of motion, strength, and function. A key element in these programs is active exercises. The exercises are often selected based on assumed muscle activity, investigated by electromyography (EMG). In particular, in this patient population, activation of the deltoid and the scapular muscles is the focus of exercise therapy. Currently, most studies investigating muscle activity levels during exercises are performed on healthy individuals. To our knowledge, no study exists analyzing EMG activity during exercises in a population of shoulder arthroplasty patients. Therefore, the study aimed to analyze activity in the shoulder girdle muscles during 6 commonly used rehabilitation exercises 12 weeks after reverse shoulder arthroplasty surgery.

METHODS

Forty-four patients (50 shoulders) participated in this cross-sectional study, 12 weeks postoperatively (mean 99.18 ± 12.8 days), aged 68.9 ± 7.75 years. Surface EMG activity was measured in 10 shoulder girdle muscles: the 3 trapezius parts, serratus anterior, the 3 deltoid parts, latissimus dorsi, and 2 pectoralis major parts during 6 exercises, 3 in a closed chain, and 3 open chain elevation exercises.

RESULTS

Gravity-minimized exercises (horizontal plane) show low activity for almost all muscles. Vertical closed kinetic chain exercises show an increased activity compared to horizontal plane exercises. Open kinetic chain exercises against gravity showed the greatest activity in deltoid and upper trapezius. For the other muscles, no consistency in progression was found.

CONCLUSION

This study offers a progression of exercises for patients after reverse shoulder arthroplasty based on increased muscle activity.

Optimal combination of arthroplasty type, fixation method, and postoperative rehabilitation protocol for complex proximal humerus fractures in the elderly: a network meta-analysis

BACKGROUND

The purpose of this study was to define the optimal combination of surgical technique and postoperative rehabilitation protocol for elderly patients undergoing either hemiarthroplasty (HA) or reverse total shoulder arthroplasty (rTSA) for acute proximal humerus fracture (PHF) by performing a network meta-analysis of the comparative studies in the literature.

METHODS

A systematic review of the literature using Preferred Reporting Items for Systematic Reviews and Meta-analyses guidelines of MEDLINE, EMBASE, and Cochrane Library was screened from 2007 to 2023. Inclusion criteria were level I-IV studies utilizing primary HA and/or rTSA published in a peer-reviewed journal, that specified whether humeral stems were cemented or noncemented, specified postoperative rehabilitation protocol, and reported results of HA and/or rTSA performed for PHF. Early range of motion (ROM) was defined as the initiation of active ROM at ≤3 weeks after surgery. Level of evidence was evaluated based on the criteria by the Oxford Centre for Evidence-Based Medicine. Clinical outcomes were compared using a frequentist approach to network meta-analysis with a random-effects model that was performed using the netmeta package version 0.9-6 in R.

RESULTS

A total of 28 studies (1119 patients) were included with an average age of 74 ± 3.7 and mean follow-up of 32 ± 11.1 months. In the early ROM cohort (Early), the mean time to active ROM was 2.4 ± 0.76 weeks compared to 5.9 ± 1.04 weeks in the delayed ROM cohort (Delayed). Overall, rTSA-Pressfit-Early resulted in statistically superior outcomes including postoperative forward elevation (126 ± 27.5), abduction (116 ± 30.6), internal rotation (5.27 ± 0.74, corresponding to L3-L1), American Shoulder and Elbow Surgeons score (71.8 ± 17), tuberosity union (89%), and lowest tuberosity nonunion rate (9.6%) in patients ≥65 year old with acute PHF undergoing shoulder arthroplasty (all P ≤ .05). In total there were 277 (14.5%) complications across the cohorts, of which 89/277 (34%) were in the HA-Cement-Delayed cohort. HA-Cement-Delayed resulted in 2-times higher odds of experiencing a complication when compared to rTSA-Cement-Delayed (P = .005). Conversely, rTSA-Cement-Early cohort followed by rTSA-Pressfit-Early resulted in a total complication rate of 4.7% and 5.4% (odds ratios, 0.30; P = .01 & odds ratios, 0.42; P = .05), respectively. The total rate of scapular notching was higher in the cemented rTSA subgroups (16.5%) vs. (8.91%) in the press fit rTSA subgroups (P = .02).

CONCLUSION

Our study demonstrates that patients ≥65 years of age, who sustain a 3-or 4-part PHF achieve the most benefit in terms of ROM, postoperative functional outcomes, tuberosity union, and overall complication rate when undergoing rTSA with a noncemented stem and early postoperative ROM when compared to the mainstream preference-rTSA-Cement-Delayed.

The surgical treatment of proximal humerus fractures 2010-2019: United States national case volume and incidence trends

Background

Proximal humerus fractures are the third most common fracture type for patients between the ages of 65 and 89 and occur more frequently in women than men. Given the variety of surgical treatments for proximal humerus fractures, the aim of this study was to (1) report United States national volume and incidence estimates for surgical management of proximal humerus fractures to better understand the changing practice over the past decade and (2) to analyze differences in volume and incidence among age groups, sex, and geographic region.

Methods

Using IBM Marketscan national database, all patients that underwent open reduction internal fixation (ORIF), hemiarthroplasty, or reverse total shoulder arthroplasty (RTSA) between 2010 and 2019 were identified with Current Procedural Terminology codes. The dataset was further stratified to identify patients treated for proximal humerus fractures. IBM Marketscan provided discharge weights that were used to determine estimated national annual volumes of each procedure in IBM SPSS Statistics software (IBM Corp., Armonk, NY, USA). Volume and incidence were adjusted per 1,000,000 persons and calculated for subgroups according to age group, sex, and geographical region. The United States Census Bureau annual population data was used for all incidence calculations.

Results

Over the past decade, the total volume and incidence of surgically treated proximal humerus fractures increased by 13% and 5%, respectively. Although overall incidence decreased, ORIF remained the most common surgical treatment. The greatest decrease in volume and incidence of ORIF occurred in patients ≥75. The incidence of ORIF treatment increased in the South and West while it decreased in the Northeast and Midwest. Total volume and incidence of HA decreased between 2010 and 2019 and this trend remained among all subgroups. Total volume and incidence of RTSA increased by over 300%. The incidence of males and females receiving RTSA increased by 266% and 320%, respectively. Volume and incidence of RTSA increased across all age groups. Volume and incidence of RTSA increased in the Midwest, South, and Western regions while it remained unchanged in the Northeast.

Conclusion

Surgical management trends of proximal humerus fractures have changed greatly over the past decade. ORIF remains the most common surgical treatment for proximal humerus fractures. HA has fallen out of favor while RTSA has seen significant increases in usage across sex, age groups, and geographic regions. These trends represent a change in practice for treating proximal humerus fractures by considering all patient and fracture characteristics when opting for surgical management.

[Augmentation techniques for the treatment of osteoporosis-associated fractures of the extremities]

The current demographic development is leading to an increasing number of cases of osteoporosis-related fractures. Affected individuals are typically part of a vulnerable, predominantly geriatric patient group with limited physical resources. Additionally, the pathophysiological characteristics of osteoporotic bones with reduced bone quality and quantity, pose a significant challenge to the osteosynthesis techniques used. Achieving rapid postoperative mobilization and stable weight-bearing osteosynthesis to prevent postoperative medical complications are the main goals of the surgical management. In recent years augmentation techniques have gained in importance in the treatment of osteoporosis-related fractures by significantly enhancing the stability of osteosyntheses and reducing mechanical complication rates. The main options available are polymethyl methacrylate (PMMA) augmentation and various bioresorbable bone substitute materials with different properties. Implant augmentations can be applied at various locations in the extremity bones and standardized procedures are now available, such as for the proximal humerus and femur. When used correctly, low complication rates and promising clinical outcomes are observed. This article aims to provide an overview of available techniques and applications based on the current literature. Guidelines and substantial scientific evidence are still limited.

Risk factors for surgical site infection after closed proximal humerus fractures

Proximal humerus fractures are common in clinical practice, and there are relatively a few studies on postoperative incision infections of such fractures. The purpose of this study was to explore the risk factors for surgical site infection (SSI) after internal fixation in patients with closed proximal humerus fractures. Patients with closed proximal humerus fractures who underwent surgery from January 2016 to January 2022 were retrospectively analysed. Cases with superficial or deep infections within 3 months after surgery were in the infection group and the remaining cases were in the non-infection group. The types of pathogenic bacteria in the infection group were analysed. The potential risk factors for SSI in all patients were recorded: (1) patient-related factors: gender, age, body mass index (BMI), smoking, comorbidities; (2) trauma-related factors: mechanism of injury, Injury Severity Score, visual analogue scale, fracture type, soft tissue condition and combined dislocation; (3) laboratory-related indexes: haemoglobin, albumin; (4) surgery-related factors: time from injury to surgery, American Society of Anesthesiologists anaesthesia classification, surgical time, fixation mode, intraoperative blood loss, suture method, bone graft and postoperative drainage. The risk factors for the occurrence of SSI were analysed using univariate analysis and multivariate logistic regression. The incidence of SSI was 15.7%. The most common bacterium in the infection group was Staphylococcus aureus. High BMI (p = 0.033), smoking (p = 0.030), an increase in mean time from injury to definitive surgery (p = 0.013), and prolonged surgical time (p = 0.044) were independent risk factors for the development of SSI after closed proximal humeral fractures. In patients with closed proximal humerus fractures, weight loss, perioperative smoking cessation, avoidance of delayed surgery, and shorter surgical time may be beneficial in reducing the incidence of SSI.

Revitalizing Recovery: Unveiling the Transformative Impact of Physiotherapy in Rehabilitating a Neglected Case of Shoulder Hemiarthroplasty

The shoulder joint has a complex anatomy and biomechanics. It is a ball and socket joint made by the articulation surface of the humeral head (ball) and glenoidal fossa (socket) of the scapula. Shoulder arthroplasty is done when parts of the shoulder joint are severely affected and damaged beyond repair. The damaged parts are replaced with artificial parts. Prosthetic implants are typically made of metal or plastic material. Implants come in various sizes and shapes. There are three types of surgical arthroplasty: total shoulder arthroplasty, partial shoulder arthroplasty, and reverse arthroplasty. Indications of shoulder arthroplasty may include osteoarthritis, fractures, rotator cuff injuries, osteonecrosis, and rheumatoid arthritis. This case study aims to provide a case of anteroinferior dislocation of the left shoulder with humeral head comminuted fracture confirmed by an investigation like radiograph and CT scan operatively managed by left shoulder hemiarthroplasty. In this case study, a 58-year-old male cannot lift his arm and perform actions of the shoulder joint independently after the operative procedure, thus reducing the functional status and quality of life. After the left shoulder hemiarthroplasty repair post due to inadequate rehabilitation, there was a failure in achieving the ranges and gaining back the strength of the muscles. The patient has a combined plan of action, which consists of pharmacological interventions along with physiotherapy rehabilitation. The physiotherapy protocol consists of goals like using electrical muscle stimulation, activation exercises of muscles, strengthening protocol, stretches, and counselling. By the end of the physiotherapy treatment, the patient showed significant progress in re-establishing the ranges and enhanced muscle strength, which resulted in a positive self-boost along with improved functional independence quotient, thereby increasing quality of life.

Timing of Surgery for Proximal Humeral Fracture Treated with Shoulder Hemiarthroplasty, Best Results with Surgery Within 2 Weeks

Background

Preoperative delay may affect the outcome of proximal humerus fractures treated with shoulder hemiarthroplasty. There is currently no consensus for the recommended preoperative time interval. The aim was to examine how the time to surgery with shoulder hemiarthroplasty after a proximal humerus fracture affected the patient-reported outcome.

Methods

380 patients with proximal humerus fractures treated with shoulder hemiarthroplasty recorded from the Swedish Shoulder Arthroplasty Registry were included. Three self-reporting outcome instruments were used at follow-up after 1-5 years: a shoulder-specific score, the Western Ontario Osteoarthritis of the Shoulder index (WOOS), the EuroQol-5 Dimension index (EQ-5D), and subjective patient satisfaction assessment.

Results

The preoperative delay had a negative impact on the WOOS, EQ-5D, and patient satisfaction level (p < 0.01). The best result, measured with WOOS at a minimum 1-year follow-up, was found when surgery was performed 6-10 days after the reported date of fracture. WOOS% 8-14 days was 69.4% (± 24.2). A delay of more than 10 days was shown to be correlated with poorer outcomes. WOOS% 15-60 days was 55.8% (± 25.0) and continued to decrease.

Conclusion

The current recommendation in Sweden to perform shoulder hemiarthroplasty within 2 weeks after sustaining a proximal humerus fracture is considered valid.

Trends in the treatment of proximal humerus fractures from 2010 to 2020

BACKGROUND

The incidence of proximal humerus fractures (PHF) is continuing to rise due to shifts towards a more aged population as well as advancements in surgical treatment options. The purpose of this study is to examine and compare trends in the treatment of PHFs (nonoperative vs. operative; different surgical treatments) across different age groups over the last decade (2010-2020).

METHODS

The New York Statewide Planning and Research Cooperative System (SPARCS) database was queried using International Classification of Diseases and Current Procedural Terminology codes to identify all patients presenting with or undergoing surgery for PHF between 2010 and 2020. Treatment trends, demographics, and insurance information were analyzed during the study period. Comparisons were made between operative and nonoperative trends with respect to the number and type of surgeries performed among 3 age groups: ≤49 years, 50-64 years, and ≥65 years. The rate of postoperative complications and reoperations was evaluated and compared among different surgical treatments for patients with a minimum 1-year postoperative follow-up.

RESULTS

A total of 92,308 patients with a mean age of 67.8 ± 16.8 years were included. Over the last decade, there was no significant increase in the percentage of PHFs treated with surgery. A total of 15,523 PHFs (16.82%) were treated operatively, and these patients, compared with the nonoperative cohort, were younger (64.9 years vs. 68.4 years, P < .001), more likely to be White (80.2% vs. 74.7%, P < .001), and more likely to have private insurance (41.4% vs. 32.0%, P < .001). For patients ≤49 years old, trends in operative treatment have remained stable with internal fixation (IF) as the most used surgical modality. For patients 50-64 years old, we observed a gradual decline in the use of hemiarthroplasty (HA), with a corresponding increase in the use of reverse total shoulder arthroplasty (rTSA), but IF continued to be the most used operative modality. In patients over 65 years, a steep decline in the use of IF and HA was noted during the first half of the decade along with a significant exponential increase in the use of rTSA, which surpassed the use of IF in 2019. Despite the increase in the use of rTSA, no differences in rate of surgical complications were noted between rTSA and IF (χ2 = 0.245, P = .621) or reoperations (χ2 = 0.112, P = .730).

CONCLUSION

Nonsurgical treatment remains the mainstay treatment of PHFs. Although there is no increase in the prevalence of operative treatment in patients ≥50 years in the last decade, there is an exponential increase in the use of rTSA with a corresponding decrease in HA and IF, a trend more substantial in patients ≥65 years compared with patients between 50 and 64 years.

The long-term results of shoulder hemiarthroplasty in irreducible four-part fracture-dislocation of the proximal humerus without rotator cuff tear arthropathy

PURPOSE

Although there are concerns about nonunion of the greater tuberosity or shoulder weakness, hemishoulder arthroplasty (HSA) is a viable treatment option for irreducible four-part proximal humerus fractures-dislocation without rotator cuff tear arthropathy. This study aims to analyze the long-term radiological and functional outcomes of HSA.

METHODS

This study enrolled 36 patients who underwent HSA due to irreducible four-part proximal humerus fracture-dislocation without rotator cuff tear arthropathy between March 2005 and May 2020. The exclusion group included 10 reverse total shoulder arthroplasty patients. The mean age and mean follow-up period were 68.6 years old and 48.6 months, respectively. Radiological assessments, such as vertical and horizontal greater tuberosity position, greater tuberosity healing, and implant position, were evaluated. Clinically, American Shoulder and Elbow Surgeons Score (ASES), Constant-Murley Score (CMS), and range of motion were evaluated.

RESULTS

The greater tuberosity union rate was 55.6% (n = 20), with 44.4% (n = 16) experiencing nonunion, malunion, and bone resorption. The mean vertical and horizontal greater tuberosity positions showed significant difference at last follow-up compared to immediate postoperation. The retroversion of the implant was 23.8 ± 4.61°, and the acromio-humeral interval was 7.6 ± 1.34 mm. The mean last follow-up ASES and CMS were 39.5 ± 4.03 and 55.4 ± 10.41, respectively. The mean active forward flexion, abduction, internal rotation, and external rotation were 100.9 ± 15.04°, 92.5 ± 14.47°, 44.2 ± 12.83°, and 42.5 ± 15.32°, respectively.

CONCLUSION

In long-term follow-up, the greater tuberosity was superiorly migrated and externally rotated. Active forward flexion and abduction in the last follow-up were significantly limited. However, in terms of pain relief, a satisfactory result was seen.

How do surgeons decide when to treat proximal humerus fractures with operative versus nonoperative management?

PURPOSE

The objective of this study was to determine the underlying factors that drive the decision for surgeons to pursue operative versus nonoperative management for proximal humerus fractures (PHF) and if fellowship training had an impact on these decisions.

METHODS

An electronic survey was distributed to members of the Orthopaedic Trauma Association and the American Shoulder and Elbow Surgeons Society to assess differences in patient selection for operative versus nonoperative management of PHF. Descriptive statistics were reported for all respondents.

RESULTS

A total of 250 fellowship trained Orthopaedic Surgeons responded to the online survey. A greater proportion of trauma surgeons preferred nonoperative management for displaced PHF fractures in patients over the age of 70. Operative management was preferred for older patients with fracture dislocations (98%), limited humeral head bone subchondral bone (78%), and intraarticular head split (79%). Similar proportions of trauma surgeons and shoulder surgeons cited that acquiring a CT was crucial to distinguish between operative and nonoperative management.

CONCLUSION

We found that surgeons base their decisions on when to operate primarily on patient's comorbidities, age, and the amount of fracture displacement when treating younger patients. Further, we found a greater proportion of trauma surgeons elected to proceed with nonoperative management in patients older than the age of 70 years old as compared to shoulder surgeons.

Is there still a place for anatomic hemiarthroplasty in patients with high functional demands in primary, nonreconstructable proximal humeral fractures? A clinical and radiographic assessment

BACKGROUND

Vitality-threatening proximal humerus fractures often provide an indication for prosthetic treatment. We investigated the issue of how anatomic hemiprostheses perform in younger, functionally challenging patients with the use of a specific fracture stem and systematic tuberosity management in medium-term follow-up.

METHODS

Thirteen skeletally mature patients with a mean age of 64 ± 9 years and a minimum follow-up of 1 year after primary open-stem hemiarthroplasty for 3- and 4-part proximal humeral fractures were included. All patients were followed up regarding their clinical course. Radiologic follow-up included fracture classification, healing of tuberosities, proximal migration of the humeral head, evidence of stem loosening, and glenoid erosion. Functional follow-up included range of motion, pain, objective and subjective performance scores, complications, and return to sports rates. We statistically compared treatment success based on the Constant score between the cohort with proximal migration and the cohort with regular acromiohumeral distance by means of the Mann-Whitney U test.

RESULTS

After an average follow-up period of 4.8 years, satisfactory results were obtained. The absolute Constant-Murley score was 73.2 ± 12.4 points. The disabilities of the arm, shoulder, and hand score was 13.2 ± 13.0 points. Patients reported their mean subjective shoulder value as 86.6% ± 8.5%. Pain was reported as 1.1 ± 1.3 points on a visual analog scale. Flexion, abduction, and external rotation values were 138 ± 31°, 134 ± 34°, and 32 ± 17°, respectively. 84.6% of the referred tuberosities healed successfully. Proximal migration was observed in 38.5% of cases and was associated with worse Constant score results (P = .065). No patient showed signs of loosening. Mild glenoid erosion was apparent in 4 patients (30.8%). All patients who were interviewed and participated in sports before surgery were able to return to their primary sport after surgery and continued to do so during the final follow-up.

CONCLUSIONS

With narrow indications, use of a specific fracture stem and adequate tuberosity management, successful radiographic and functional results are presented after a mean follow-up of 4.8 years after hemiarthroplasty for primary nonreconstructable humeral head fractures. Accordingly, open-stem hemiarthroplasty appears to remain a possible alternative to reverse shoulder arthroplasty in younger, functionally challenging patients with primary 3- or 4-part proximal humeral fractures.

Short-Term Outcomes and Long-Term Implant Survival After Inpatient Surgical Management of Geriatric Proximal Humerus Fractures

Introduction

The most common surgical options for geriatric proximal humerus fractures are open reduction and internal fixation (ORIF), hemiarthroplasty (HA), and reverse total shoulder arthroplasty. We used a longitudinal inpatient discharge database to determine the cumulative incidence of conversion to arthroplasty after ORIF of geriatric proximal humerus fractures. The rates of short-term complications and all-cause reoperation were also compared.

Patients and Methods

All patients 65 or older who sustained a proximal humerus fracture and underwent either ORIF, HA, or shoulder arthroplasty (SA) as an inpatient from 2000 through 2017 were identified. Survival analysis was performed with ORIF conversion to arthroplasty and all-cause reoperation as the endpoints of interest. Rates of 30-day readmission and short-term complications were compared. Trends in procedure choice and outcomes over the study period were analyzed.

Results

A total of 27 102 geriatric patients that underwent inpatient surgical management of proximal humerus fractures were identified. Among geriatric patients undergoing ORIF, the cumulative incidence of conversion to arthroplasty within 10 years was 8.2%. The 10-year cumulative incidence of all-cause reoperation was 12.1% for ORIF patients and less than 4% for both HA and SA patients. Female sex was associated with increased risk of ORIF conversion and younger age was associated with higher all-cause reoperation. ORIF was associated with higher 30-day readmission and short-term complication rates. Over the study period, the proportion of patients treated with ORIF or SA increased while the proportion of patients treated with HA decreased. Short-term complication rates were similar between arthroplasty and ORIF patients in the later cohort (2015-2017).

Conclusion

The 10-year cumulative incidence of conversion to arthroplasty for geriatric patients undergoing proximal humerus ORIF as an inpatient was found to be 8.2%. All-cause reoperations, short-term complications, and 30-day readmissions were all significantly lower among patients undergoing arthroplasty, but the difference in complication rate between arthroplasty and ORIF was attenuated in more recent years. Younger age was a risk factor for reoperation and female sex was associated with increased risk of requiring conversion to arthroplasty after ORIF.

Arthroplasty as Primary Treatment for Metadiaphyseal Proximal Humerus Fractures: A Viable Alternative to Osteosynthesis for the Elderly

Introduction

in the elderly patient population, where fracture comminution, osteoporotic fractures, and associated arthritis or rotator cuff pathologies dominate, metadiaphyseal proximal humeral fracture is a challenging subset of fractures to treat. This study reports on cementless long-stem reverse total shoulder arthroplasty (RTSA) as primary treatment of metadiaphyseal proximal humeral fractures in elderly patients.

Materials & Methods

Between January 2018 and October 2021, 22 consecutive patients sustained proximal humerus fractures with metadiaphyseal extension and underwent surgery with cementless long-stem RTSA. Patients older than 60 years with minimum 1 year of clinical and radiographic follow-up were included. Patient demographics, range of motion, and patient reported outcomes [Visual Analog Scale (VAS) pain scale, Simple Shoulder Test (SST), Subjective Shoulder Value (SSV), and American Shoulder Elbow Surgeon (ASES) scores] were retrospectively collected. Postoperative X-rays were evaluated for fracture and tuberosity union.

Results

There were 14 eligible patients with a median age of 71 years (range 61-91 years) and a median 13 months follow-up. At final follow-up, the median active elevation was 120° (range 80°-150°), external rotation was 40° (range 0°-50°), and internal rotation was 40° (range 0°-80°). Median VAS was 2 (range 0-8), SST was 71% (range 33%-92%), SSV was 78% (range 20-90%), and ASES was 73 (range 17-90). All patients exhibited radiographic union. There were five minor complications in three patients: postoperative neuropathy, tuberosity nonunion, scapula notching, and proximal humeral stress shielding.

Conclusion

Cementless long-stem RTSA is a viable alternative to primary fracture fixation in the elderly patient population with metadiaphyseal proximal humerus fractures.

Proximal humerus fractures: A review of current practice

The management of proximal humeral fractures (PHF) remains controversial. Its incidence is increasing. Patients should be meticulously assessed clinically for co-morbidities and neuro-vascular injuries. Radiological investigation helps provide information on the fracture configuration and dislocations. Enhanced by 3-dimensional CT scanning, these further help in decision making and operative planning. PHF classifications have been demonstrated to have poor intra-observer and inter-observer reliability. Research has identified some radiographic predictive factors for humeral head ischaemia and likely failure of surgical fixation. The range of management options include non-operative treatment, operative fixation, intramedullary nailing and arthroplasty (hemiarthroplasty, reverse shoulder replacement). The majority of PHFs are stable injuries and non-operative management is usually successful. Some degree of malunion is readily tolerated especially by elderly patients. Surgical management of significantly displaced, unstable proximal humerus fractures should aim to stabilise the fracture adequately and provide satisfactory function for the long term. Management of the greater tuberosity is pivotal for the eventual outcome. When fixation may appear to be compromised by poor bone quality, likely poor function, age related rotator cuff degeneration or likely humeral head ischaemia clinicians may opt for arthroplasty. Successful hemiarthroplasty outcomes are dependent on sufficient healing of the tuberosity and recovery of the rotator cuff integrity. Reverse shoulder replacement can predictably deliver good functional outcomes for the shoulder in elderly patients, where rotator cuff dysfunction is suspected or as a revision procedure following failure of other surgical interventions. As opposed to hemiarthroplasty, which has shown a downward trend, there has been an increasing trend towards the use of reverse shoulder replacement in proximal humeral fractures. The management of PHFs should be patient specific, fracture specific and meet the functional demands and needs of the individual patient. The surgeon's skill set and clinical experience also plays an important role in the options of management available.

An Analysis of the Morphology of Bony Bicipital Groove Fractures in Proximal Humeral Fractures

OBJECTIVE

Research on proximal fractures in the humeral bicipital groove (BG), a region in which bones are not commonly fractured, is considered sparse in the literature. The objective of this research was to present the definite characteristics and distribution of BG fractures.

METHODS

This retrospective study included and enrolled 119 proximal humeral fractures in adult patients with complete radiography data to identify the fracture distribution in the BG from January 2021 to August 2021. The bicipital region was divided into three parts, i.e. the upper 1/3, middle 1/3, and lower 1/3 of the BG, and the distribution of fracture lines was transcribed on the male or female template, as appropriate. In addition, the normal contralateral humerus was used to calculate the cortical thickness of the supratubercular groove and different parts of the BG (upper, middle, and lower parts). The Mann-Whitney test or one-way ANOVA along with LSD tests were used to determine differences in the fracture distribution and cortical thickness between men and women.

RESULTS

Fractures of the BG in both men and women were mainly located in the upper 2/3 region of the BG, especially in the middle 1/3 of the BG. There were significant differences in the cortical thickness of the BG in men compared with that in women. The cortical thickness was highest in the supratubercular ridge but not the BG in men and women, respectively.

CONCLUSION

This research concluded that bony BG fractures were always observed in the middle part of the BG and were mainly found in patients with four fractures of the proximal humerus. As a unique fracture pattern, the existence of a bony BG fracture always means that a patient has been injured by a relatively severe mechanism, and more attention should be given to these proximal humeral fractures.

Assessment of surgical management for locked fracture-dislocations of the proximal humerus in patients of different ages

Background

Locked fracture-dislocation of the proximal humerus (LFDPH) is a very severe complex injury; neither arthroplasty nor internal plating are fully satisfactory. This study aimed to evaluate different surgical treatments for LFDPH to determine the optimal option for patients of different ages.

Methods

From October 2012 to August 2020, patients who underwent open reduction and internal fixation (ORIF) or shoulder hemiarthroplasty (HSA) for LFDPH were retrospectively reviewed. At follow-up, radiologic evaluation was performed to evaluate bony union, joint congruence, screw cut-out, avascular necrosis of the humeral head, implant failure, impingement, heterotopic ossification, and tubercular displacement or resorption. Clinical evaluation comprised the Disability of the Arm, Shoulder, and Hand (DASH) questionnaire and Constant-Murley and visual analog scale (VAS) scores. Additionally, intraoperative and postoperative complications were assessed.

Results

Seventy patients (47 women and 23 men) with final evaluation results qualified for inclusion. Patients were divided into three groups: group A: patients aged under 60 years who underwent ORIF; group B: patients aged ≥60 years who underwent ORIF; and group C: patients who underwent HSA. At a mean follow-up of 42.6 ± 26.2 months, function indicators, namely shoulder flexion, and Constant-Murley and DASH scores, in group A were significantly better than those in groups B and C. Function indicators in group B were slightly but not significantly better compared with group C. Regarding operative time and VAS scores, there were no significant differences between the three groups. Complications occurred in 25%, 30.6%, and 10% of the patients in groups A, B, and C, respectively.

Conclusions

ORIF and HSA for LFDPH provided acceptable but not excellent results. For patients aged <60 years, ORIF might be optimal, whereas, for patients aged ≥60 years, both ORIF and HSA provided similar results. However, ORIF was associated with a higher rate of complications.

The effect of integrity of lesser tuberosity-medial calcar on postoperative outcome in the proximal humeral fracture

BACKGROUND

In proximal humeral fractures, the medial calcar is often considered an important stabilizing structure. When the medial calcar is disrupted, some patients may have accompanying humeral lesser tuberosity comminution that has not been noticed. To investigate the impacts of comminuted fragments of lesser tuberosity and calcar on postoperative stability, CT results, number of fragments, cortical integrity, and the variation of neck-shaft angle were compared in patients with proximal humeral fractures.

MATERIALS AND METHODS

From April 2016 to April 2021, this study included patients with senile proximal humeral fractures diagnosed by CT three-dimensional reconstruction with lesser tuberosity fractures and medial column injuries. The number of fragments in the lesser tuberosity and the continuity of medial calcar were evaluated. Postoperative stability and shoulder function were evaluated by comparing changes in neck-shaft angle and the DASH upper extremity function score from 1 week to 1 year after the operation.

RESULTS

A total of 131 patients were included in the study, and the results showed that the number of fragments of the lesser tuberosity was related to the integrity of the medial cortex of the humerus. That is, when there were more than two lesser tuberosity fragments, the integrity of humeral medial calcar was poor. The positive rate of the lift-off test was higher in patients with lesser tuberosity comminutions 1 year after surgery. In addition, patients with more than two lesser tuberosity fragments and continuous destruction of the medial calcar had large variations in the neck-shaft angle, high DASH scores, poor postoperative stability, and poor recovery of shoulder joint function 1 year postoperatively.

CONCLUSION

The number of humeral lesser tuberosity fragments and the integrity of the medial calcar were associated with the collapse of the humeral head and the decrease in shoulder joint stability after the proximal humeral fracture surgery. When the number of lesser tuberosity fragments was greater than two and the medial calcar was damaged, the proximal humeral fracture had poor postoperative stability and poor functional recovery of the shoulder joint, which required auxiliary internal fixation treatment.

Influence of preoperative simulation on the reduction quality and clinical outcomes of open reduction and internal fixation for complex proximal humerus fractures

PURPOSE

Proximal humerus fractures (PHFs) are common. With the development of locking plates, open reduction and internal fixation (ORIF) of the proximal humerus can provide excellent clinical outcomes. The quality of fracture reduction is crucial in the locking plate fixation of proximal humeral fractures. The purpose of this study was to determine the impact of 3-dimensional (3D) printing technology and computer virtual technology assisted preoperative simulation on the reduction quality and clinical outcomes of 3-part and 4-part proximal humeral fractures.

METHOD

A retrospective comparative analysis of 3-part and 4-part PHFs undergoing open reduction internal fixation was performed. Patients were divided into 2 groups according to whether computer virtual technology and 3D printed technology were used for preoperative simulation: the simulation group and the conventional group. Operative time, intraoperative bleeding, hospital stay, quality of fracture reduction, Constant scores, American Society for Shoulder and Elbow Surgery (ASES) scores, shoulder range of motion, complications, and revision surgeries were assessed.

RESULTS

This study included 67 patients (58.3%) in the conventional group and 48 patients (41.7%) in the simulation group. The patient demographics and fracture characteristics were comparable in these groups. Compared with the conventional group, the simulation group had shorter operation time and less intraoperative bleeding (P < 0.001, both). Immediate postoperative assessment of fracture reduction showed a higher incidence of greater tuberosity cranialization of < 5 mm, neck-shaft angle of 120° to 150°, and head shaft displacement of < 5 mm in the simulation group. The incidence of good reduction was 2.6 times higher in the simulation group than in the conventional group (95% CI, 1.2-5.8). At the final follow-up, the chance of forward flexion > 120° (OR 5.8, 95% CI 1.8-18.0) and mean constant score of > 65 (OR 3.4, 95% CI 1.5-7.4) was higher in the simulation group than the conventional group, as well as a lower incidence of complications in the simulation group was obtained (OR 0.2, 95% CI 0.1-0.6).

CONCLUSIONS

This study identified that preoperative simulation assisted by computer virtual technology and 3D printed technology can improve reduction quality and clinical outcomes in treatment of 3-part and 4-part PHFs.

Hemiarthroplasty for proximal humerus fractures and for fracture sequelae: did not differ in their outcomes

Background

The role of hemiarthroplasty (HA) in the management of proximal humerus fractures (PHFs) and their sequalae has evolved with the development of contemporary internal fixation techniques and the widespread use of the reverse total shoulder arthroplasty. However, HA may still have a role in certain acute PHFs as well as select fracture sequalae. The aim of this investigation was to evaluate the outcomes of HA when used in acute fractures and fracture sequelae.

Methods

Over a 16-year period (2000 - 2016), 122 primary HA performed for either acute PHFs or fracture sequelae were identified. Of these, 70 (57.4%) HA were performed within 4 weeks of the injury, whereas 52 (42.6%) underwent HA for fracture nonunion, malunion, or avascular necrosis. The minimum follow-up period was 2 years. Outcomes included the visual analog scale for pain, range of motion, American Shoulder and Elbow Surgeons (ASES) score, complications, and reoperations inclusive of revision surgery. Cumulative incidence analysis was used to report implant survivorship with death as a competing risk.

Results

The mean follow-up time after HA was 4.8 years (range, 2-15 years) with no differences between groups (P = .102). Cohort comparisons demonstrated an older age (67.8 vs. 60.1; P = .004), lower rate of previous procedure (4.3% vs. 51.9%; P < .001), lower bone graft use (28.6% vs. 59.6%; P < .001), and a longer length of stay (5.9 vs. 3.0 days; P < .001) in the acute HA group. Additionally, no differences were observed between the acute and sequalae cohort in pain (2.0 vs. 2.5; P = .523), forward elevation (98° vs. 93°; P = .627), external rotation (30° vs. 23°; P = .215), internal rotation score (4.0 vs. 4.5; P = .589), satisfaction (P = .592), ASES scores (64.4 vs. 57.1; P = .168), complications (27.1% vs. 28.8%; P = .836), or reoperations (11.4% vs. 19.2%; P = .229). When comparing acute fractures and sequalae, the 15-year complication rates were 32.4% and 43.3%, respectively (P = .172), with 15-year reoperation rates of 13.7% and 24%, respectively (P = .098).

Conclusions

HA, whether performed acutely for a PHF or in a delayed fashion for fracture sequalae, demonstrated no statistically significant differences in outcomes for all examined parameters. HA in this setting may provide reasonable pain relief. However, limited motion, marginal ASES scores, and elevated rates of complications and reoperations can be expected up to 15 years postoperatively.

Reverse Total Shoulder Arthroplasty with a Cementless and Metaphyseal Stem Fixation Is a Viable Option for the Treatment of Proximal Humeral Fractures with Calcar Involvement

BACKGROUND

The purpose of the study was to evaluate the suitability of reverse total shoulder arthroplasty (RTSA) with a cementless and metaphyseal stem fixation as a treatment for complex proximal humeral fractures (PHFs) with a calcar fragment when this may be fixed with a steel wire cerclage. Clinical and radiographic outcomes were compared with the same RTSA for PHFs without a calcar fragment at a minimum of five-year follow-up.

METHODS

A retrospective analysis was performed on acute PHFs "with a medial calcar fragment" (group A) and "without a calcar fragment" (group B) treated with a RTSA and cementless metaphyseal stem fixation.

RESULTS

At an average follow-up of 6.7 years (5-7.8 years), no statistical difference was observed comparing group A (18 patients) to group B (50 patients) for active anterior elevation (141 ± 15° vs. 145 ± 10°, p = 0.67), active external rotation ER1 (49 ± 15° vs. 53 ± 13°, p = 0.55), and active internal rotation (5 ± 2 vs. 6 ± 2, p = 0.97). Similarly, a comparison of ASES score (89.2 ± 10 vs. 91.6 ± 9, p = 0.23) and Simple Shoulder Test score (91.1 ± 11 vs. 90.4 ± 10, p = 0.49) revealed no significant difference.

CONCLUSION

RTSA with a cementless and metaphyseal stem fixation represents a safe and feasible treatment for complex PHFs with a medial calcar fragment when this may be fixed with a steel wire cerclage.

Double Plating for Complex Proximal Humeral Fractures: Clinical and Radiological Outcomes

Double plating for proximal humeral fractures (PHF) is an option to increase the primary fixation stability. Clinical data is missing for assessment of clinical and radiological outcome, as well as complications. We retrospectively examined 35 patients with unilateral PHF, who were treated with double plating for PHF between 2013 and 2019. The mean age was 59.5 ± 12 years and the leading fracture type was a varus dislocation (Resch type IV in 55.3%). A head-split was present in 22.9% of the cases. The primary outcome measurement was the radiological neck shaft angle (NSA). The radiological follow-up was 21 ± 16.6 months and the NSA did not differ between the intraoperative and follow-up time point (131.5 ± 6.9° vs. 136.6 ± 13.7°; p = 0.267). The clinical follow-up was 29.5 ± 15.3 months. The Constant-score was 78.5 ± 17 points, the simple-shoulder-test (SST) was 9.3 ± 3.2 points and the subjective shoulder value (SSV) was 78.8 ± 19.5%. The over-all complication rate was 31.4%, and without stiffness 14.3%. An avascular necrosis occurred in two patients (5.7%). In conclusion, this study shows good radiological and functional outcomes after double plating of highly complex proximal humeral fractures, while the complication rate is comparable to the literature. Double plating is a viable option especially for younger patients with complex fractures as a potential alternative to fracture arthroplasty.

How to improve the biomechanical stability of endosteal augmentation for proximal humerus fracture with osteopenia? A cadaveric study

BACKGROUND

Endosteal augmentation enhances the stability of osteoporotic proximal humeral fracture fixation, but the optimal configuration is unknown. The purpose of this study was to compare the biomechanical properties of different lengths of fibula with or without calcar screw in osteoporotic proximal humeral fracture.

METHODS

Three-part proximal humeral fractures with osteopenia were created on 20 pairs of fresh-frozen humeri specimens and allocated to four groups: (1) locking plate with a 6-cm fibular strut allograft, (2) locking plate with a 6-cm fibular strut allograft and additional calcar screws, (3) locking plate with a 12-cm fibular strut allograft，and (4) locking plate with a 12-cm fibular strut allograft and additional calcar screws. Specimens were loaded to simulate the force at 25° abduction. Thereafter, an axial stiffness test and a compound cyclic load to failure test were applied. Structural stiffness, number of cycles loaded to failure and relative displacement values for 5000 cycles at predetermined measurement points were recorded using a testing machine and a synchronized 3D video tracking system.

FINDINGS

In terms of initial stiffness, number of cycles loaded to failure, and relative displacement values, the groups with 12-cm fibular strut showed obvious improvement compared to the groups with 6-cm fibular strut irrespective of the influence of calcar screw implementation. Further, the groups implemented with calcar screws also showed promising biomechanical stability irrespective of fibular length.

INTERPRETATION

Lateral locking plate with longer endosteal fibular augmentation and calcar screw can significantly improve biomechanical stability for elderly proximal humeral fractures with posteromedial comminution.

Anatomically reduced fixation should always be considered when treating B and C proximal epiphyseal humeral fractures

Background

Proximal humeral fractures are commonly observed in elderly patients. Management of these injuries is controversial. Literature comparing locking plate fixation, arthroplasty, and conservative treatments show no clear advantages for any of these management strategies. Thus far, no study has considered anatomically reduced fractures obtained after locking plate treatment. To clarify the best surgical procedure in middle-aged patients, we considered outcomes and major complications leading to surgical revision following an anatomically reduced fracture fixed with locking plate and reverse shoulder arthroplasty (RSA) in the treatment of type B/C fractures in patients between 50 and 75 years of age.

Methods

This is a retrospective study including 59 patients between 50 and 75 years of age with type B/C proximal humeral fracture treated with RSA or with locking plate fixation (resulting in an anatomical reduction) between January 2010 and December 2018. Preoperative radiographs and computed tomography (CT) were evaluated in all patients. Clinical and radiologic follow-up was performed using range of motion (ROM), the Constant–Murley Score (CMS), the Oxford Shoulder Score (OSS), the Simple Shoulder Test (SST), the Subjective Shoulder Value (SSV), and visual analog scale (VAS). Major complications were considered.

Results

In the plate fixation group, ROM, CMS, SST, and VAS were higher than in the RSA group. Lower complication rates compared with the literature were observed in both groups. Anatomically reduced fracture fixed with plate and screw could outperform RSA in terms of outcome. In second-level centers where traumatology is performed by surgeons with great expertise in upper limb trauma, the choice between plate fixation and reverse arthroplasty should be made during surgery.

Conclusion

Anatomically reduced fractures showed better outcomes compared with RSA in type B/C fractures. Surgeons should always try to perform a reduction of the fracture in order to understand if a plate fixation could be feasible. If it is impossible to perform an anatomical reduction, we suggest to consider RSA. This is a retrospective observational study.

Technique and clinical results of a new intramedullary support nail and plate system for fixation of 3- or 4- part proximal humeral fractures in older adults

BACKGROUND

Internal fixation of complex proximal humeral fractures (PHF) with osteoporosis is associated with a high incidence of complications. This study introduces the technique and clinical results of a novel intramedullary support nail and plate system (ISNPs) for the internal fixation of 3- or 4- part PHF in older adults. The ISNPs combines the concept of intramedullary support and dynamic fixation into a locking plate fixation system that can be applied using a minimally invasive surgical approach.

METHODS

A total of 46 consecutive patients diagnosed with 3- or 4-part PHF that met the criteria were included in this study, including 18 in the ISNPs group and 28 in the conventional locking plate (LP) group. Clinical results, including operative time, intraoperative bleeding, reduction quality, subjective outcome ratings, and complications, were compared between the two groups. Functional outcomes were evaluated using the Constant score and disability of the arm, shoulder, and hand (DASH) questionnaire at 1-year follow-up.

RESULTS

There were no significant differences in age, sex, local bone quality, Neer-fracture type, and follow-up time between the ISNPs and LP groups. For clinical analysis, there were no significant differences in intraoperative bleeding and operation time between the ISNPs and LP groups. Significant differences were observed in the percentage of the malreduced cases, Constant and DASH score analysis, and the patients' subjective evaluation ('excellent' and 'good' %) between the two groups.

CONCLUSION

The ISNPs technique proposed in this study provides a novel hybrid internal fixation model for complex PHF with osteoporosis. The clinical results at 1-year follow-up confirmed the advantage of applying it to 3- or 4- part PHF in older patients. Further studies are required to optimize its design and explore its optimal indications.

The Evolution of Reverse Total Shoulder Arthroplasty and Its Current Use in the Treatment of Proximal Humerus Fractures in the Older Population

Proximal humerus fracture (PHF) is a common injury in the older population. While the majority of these fractures are treated non-operatively, a small subset of patients may benefit from surgical treatment. However, there continues to be an ongoing debate regarding the indications and ideal surgical treatment strategy. The use of reverse total shoulder arthroplasty (RTSA) has resulted in a paradigm shift in the treatment of PHFs in the older population. Unique biomechanical principles and design features of RTSA make it a suitable treatment option for PHFs in the older population. RTSA has distinct advantages over hemiarthroplasty and internal fixation and provides good pain relief and a reliable and reproducible improvement in functional outcomes. As a result, there has been an exponential increase in the volume of RTSA in the older population in last decade. The aim of this paper is to review the current concepts, outcomes and controversies regarding the use of RTSA for the treatment of PHFs in the older population.

Simultaneous Reverse Shoulder Arthroplasty and Open Reduction With Internal Fixation for Bilateral Proximal Humerus Fractures in the Elderly: A Report of Two Cases

Simultaneous bilateral proximal humerus fractures (PHFs) caused by a single trauma are considered rare. We herein report two patients with bilateral PHFs treated based on our treatment strategy: reverse shoulder arthroplasty (RSA) to obtain rigid stability for one shoulder and open reduction with internal fixation (ORIF) to regain the mobility of external and internal rotation for the other. By using Neer’s four-segment fracture classification, patients underwent RSA for one shoulder with the more advanced fracture type and ORIF for the other. In Case 1, a 74-year-old female presented with bilaterally comminuted PHFs and underwent surgical treatment with RSA and ORIF. In Case 2, a 78-year-old female with the comorbidity of rheumatoid arthritis and a history of total elbow arthroplasty for both elbows had bilateral PHFs and underwent surgical treatment with RSA and ORIF. Postoperatively, both patients were instructed to perform exercises including passive range of motion (ROM) for a week, active ROM exercises for two weeks, and muscle strengthening for six weeks after the surgery. At the follow-up, both patients were satisfied with the pain relief and functional recovery. Especially, increased ROM for external and internal rotation was obtained in shoulders with ORIF. These case reports describe a viable treatment option comprising simultaneous RSA and ORIF, and this surgical approach may restore shoulder functions in cases of bilateral PHFs.

Outcomes for type C proximal humerus fractures in the adult population: comparison of nonoperative treatment, locked plate fixation, and reverse shoulder arthroplasty

Background

This study compares patient-reported outcomes and range of motion (ROM) between adults with an AO Foundation/Orthopaedic Trauma Association type C proximal humerus fracture managed nonoperatively, with open reduction and internal fixation (ORIF), and with reverse shoulder arthroplasty (RSA).

Methods

This is a retrospective cohort study of patients >60 years of age treated with nonoperative management, ORIF, or RSA for AO Foundation/Orthopaedic Trauma Association type 11C proximal humerus fractures from 2015 to 2018. Visual analog scale pain scores, Patient-Reported Outcomes Measurement Information System (PROMIS) scores, ROM values, and complication and reoperation rates were compared using analysis of variance for continuous variables and chi square analysis for categorical variables.

Results

A total of 88 patients were included: 41 nonoperative, 23 ORIF, and 24 RSA. At the 2-week follow-up, ORIF and RSA had lower visual analog scale scores and lower PROMIS pain interference scores (P < .05) than nonoperative treatment. At the 6-week follow-up, ORIF and RSA had lower visual analog scale, PROMIS pain interference, and PF scores and better ROM (P < .05) than nonoperative treatment. At the 3-month follow-up, ORIF and RSA had better ROM and PROMIS pain interference and PF scores (P < .05) than nonoperative treatment. At the 6-month follow-up, ORIF and RSA had better ROM and PROMIS PF scores (P < .05) than nonoperative treatment. There was a significantly higher complication rate in the ORIF group than in the non-operative and RSA groups (P < .05).

Conclusion

The management of AO Foundation/Orthopaedic Trauma Association type 11C proximal humerus fractures in older adults with RSA or ORIF led to early decreased pain and improved physical function and ROM compared to nonoperative management at the expense of a higher complication rate in the ORIF group.

[Anatomical fracture endoprosthesis-who and how?]

The aim of this review article is to present the indications for an anatomical fracture prosthesis, mostly as a shoulder hemiprosthesis (SHEP) and its value in comparison to other procedures. The healing of the tuberosities in the anatomical position and an intact rotator cuff are particularly important for the successful implantation of a SHEP after proximal humeral fractures. For older patients (> 70 years), the use of reverse shoulder arthroplasty achieves more reliable results and is associated with a lower revision rate. The indications for implantation of a SHEP in non-reconstructible proximal humeral fractures, usually with a head split, should be carefully considered and can be used in cases with well-preserved large tuberosities and in younger patients. Complications of SHEP, such as secondary rotator cuff insufficiency, tuberosity dislocation or resorption and secondary glenoid wear, can be treated using a conversion or a change to reverse shoulder arthroplasty.

Reverse shoulder replacement versus hemiarthroplasty for proximal humeral fracture in elderly patients: a systematic review

This systematic review of the literature aims to analyse current knowledge to inform choice between hemiarthroplasty (HA) and reverse total shoulder arthroplasty (rTSA) for managing proximal humerus fractures (PHF) in elderly patients; the aim is to understand if rTSA can be considered the gold standard for treating PHF in the elderly when surgical fixation or conservative treatment is not viable options. Studies reporting outcomes and complications of PHF treated with shoulder arthroplasty in the elderly were included. Studies were in English and published after 2008. Evidence levels I, II, III and IV were included. According to PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines, a comprehensive literature search was conducted using Medline, CINAHL (Cumulative Index to Nursing and Allied Health Literature) and PubMed search engines, as well as the Cochrane Central Register of Controlled Trials. General data collected were study design, number of patients treated with HA and rTSA, age of patients (mean, mean and SD, mean and range), length of follow-up, type of implant, and clinical outcomes. rTSA can be regarded as the gold standard for surgical management of displaced 3 and 4-part fractures in the elderly. However, the literature offers mostly low-quality studies, thereby requiring further work to achieve a full understanding of this important topic.

The Reliability and Reproducibility of a New Revised Edelson Classification

Objective

Edelson classification is a 3D classification of proximal humeral fractures, but there is a scarcity of application of this classification in large samples, and the accuracy of classification was also not testified. The objective of this research was to verify whether a revised Edelson classification produces satisfactory agreement for proximal humeral fracture classification in adult patients.

Methods

A total of 827 proximal humeral fractures (304 male and 520 female patients, 58.0 ± 16.2 years) were found retrospectively from January 2014 to December 2019, and classified according to the traditional and newly proposed Edelson classification. The three‐dimensional CT images were processed, rotated and visualized within software. Five shoulder surgeons classified each fracture. After data collection, radiographic classifications results were compared by inter‐ and intraobserver analysis with the method of weighted kappa coefficients. Fracture classification based on Edelson and revised Edelson classification was presented and compared.

Results

The mean k value for the interobserver reliability was 0.748 (range, 0.583 to 0.958) compared with Edelson classification (0.548, range, 0.48 to 0.635), indicating satisfactory agreement. The mean k value for intraobserver reliability was 0.906 (range, 0.823 to 0.943) compared with Edelson classification (0.762, range, 0.666 to 0.808), indicating excellent agreement when using the newly revised Edelson classification. The mechanism was categorized as the shoulder being in a position of forward flexion, abduction, and internal rotation in Edelson I‐IV and bicipital fractures. For the greater tuberosity fracture, the mechanism was classified into two mechanisms based on the presence of a combined dislocation. Bicipital groove fracture is a commonly observed fracture pattern, and included in the revised Edelson classification.

Conclusions

The revised Edelson classification proposed was more in line with the injury mechanism of the fracture, was beneficial in identifying more fracture types such as bicipital groove fracture, and verified to be a good proximal humeral fracture classification with good reliability compared with the traditional Edelson classification.

Prevalence and Risk Factors of Postoperative Falls Following Foot and Ankle Surgery

BACKGROUND

No study has examined the incidence of risk factors for postoperative falls following foot and ankle surgery. We investigated the incidence and risk factors for postoperative falls in foot and ankle surgery using inpatient and outpatient population.

METHODS

A single fellowship-trained foot and ankle surgeon instituted collection of a postoperative fall questionnaire at 2 and 6 weeks postoperatively. A retrospective review of 135 patients with complete prospectively collected fall questionnaire data was performed. Patient demographic information, injury characteristics, comorbidities, baseline medications, length of hospital stay, visual analog scale (VAS) pain scores were collected. After univariable analysis, a multivariable binary logistic regression was conducted to assess independent risk factors for postoperative falls.

RESULTS

The median (interquartile range) age was 52 (21) and body mass index was 32.7 (11.1). A total of 108 patients (80%) underwent outpatient procedures. Thirty-nine of the 135 patients (28.9%) reported experiencing a fall in the first 6 weeks after surgery. In multivariable analysis, antidepressant use (adjusted odds ratio 3.41, 95% CI 1.19-9.81) and higher VAS pain scores at 2 weeks postoperatively (adjusted odds ratio 1.27, 95% CI 1.08-1.50) were found to be independent risk factors for postoperative falls.

CONCLUSION

This study found a high incidence of postoperative falls in the first 6 weeks after foot and ankle surgery. Baseline antidepressant use and higher 2-week VAS pain scores were associated with postoperative falls. Foot and ankle surgeons should discuss the risk of falling with patients especially those with risk factors.

LEVEL OF EVIDENCE

Level III, retrospective cohort study at a single institution.

Use of a locking stem for reverse shoulder arthroplasty is a rare but reliable option

INTRODUCTION

RSA is widely used in the treatment of complex trauma or degenerative changes of the shoulder. Strong primary fixation of the stem is necessary to prevent any loosening of the stem and subsequent revision. Presently, cement fixation or press-fit fixation are two options for humeral fixation, though each has its own limitations and risks. The aim of the current study is to evaluate the effectiveness of an alternative option involving a distal screw interlocking system for fixation of the humeral stem from initial implantation.

METHODS

We performed a retrospective multicenter study of patients implanted with the Humelock Reversed® stem RSA that can be locked with distal humeral screws in cases of operative poor press fit or to modulate the lengthening of the arm via prosthetic humeral height. Seventy-two patients with a minimum two year follow-up were included, 13 for acute trauma, 42 for degenerative changes, and 17 for revision surgery.

RESULTS

No difference was seen in radiological or clinical results for patients with or without interlocking screw primary stabilization. For non-trauma patients, the mean raw Constant score improved significantly from 31 (± 12) to 71 (± 12). For trauma patients, the mean raw Constant score for trauma (63.4) was significantly lower than for non-trauma cases (72.1) (p < 0.001). Analysis of the filling ratio demonstrated that interlocking screws were not used for lower filling ratios and that midterm fixation of the stem is not negatively impacted by distal interlocking screw fixation.

DISCUSSION

Even if use of a distal interlocking screw fixation system is rare, it can be useful for patients with poor quality fixation of stemmed RSA.

CONCLUSION

Use of an interlocking screw system to stabilize the stem in RSA provides good immediate and midterm stability of the implant allowing for clinical and radiological outcomes comparable to those obtained with press-fit fixation alone.

Factors influencing surgical management of proximal humerus fractures: do shoulder and trauma surgeons differ?

BACKGROUND

Proximal humerus fractures (PHFs) are managed with open reduction and internal fixation (ORIF), hemiarthroplasty (HA), reverse shoulder arthroplasty (RSA), or nonoperatively. Given the mixed results in the literature, the optimal treatment is unclear to surgeons. The purpose of this study was to survey orthopedic shoulder and trauma surgeons to identify the patient- and fracture-related characteristics that influence surgical decision-making.

METHODS

We distributed a 23-question closed-response email survey to members of the American Shoulder and Elbow Surgeons and Orthopaedic Trauma Association. Questions posed to respondents included demographics, surgical planning, indications for ORIF and arthroplasty, and the use of surgical augmentation with ORIF. Numerical and multiple-choice responses were compared between shoulder and trauma surgeons using unpaired t-tests and χ² tests, respectively.

RESULTS

Respondents included 172 shoulder and 78 trauma surgeons. When surgery is indicated, most shoulder and trauma surgeons treat 2-part (69%) and 3-part (53%) PHFs with ORIF. Indications for managing PHFs with arthroplasty instead of ORIF include an intra-articular fracture (82%), bone quality (76%), age (72%), and previous rotator cuff dysfunction (70%). In patients older than 50 years, 90% of respondents cited a head-split fracture as an indication for arthroplasty. Both shoulder and trauma surgeons preferred RSA for treating PHFs presenting with a head-split fracture in an elderly patient (94%), pre-existing rotator cuff tear (84%), and pre-existing glenohumeral arthritis with an intact cuff (75%). Similarly, both groups preferred ORIF for PHFs in young patients with a fracture dislocation (94%). In contrast, although most trauma surgeons preferred to manage PHFs in low functioning patients with a significantly displaced fracture or nonreconstructable injury nonoperatively (84% and 86%, respectively), shoulder surgeons preferred either RSA (44% and 46%, respectively) or nonoperative treatment (54% and 49%, respectively) (P < .001). Similarly, although trauma surgeons preferred to manage PHFs in young patients with a head-split fracture or limited humeral head subchondral bone with ORIF (98% and 87%, respectively), shoulder surgeons preferred either ORIF (54% and 62%, respectively) or HA (43% and 34%, respectively) (P < .001).

CONCLUSIONS

ORIF and HA are preferred for treating simple PHFs in young patients with good bone quality or fracture dislocations, whereas RSA and nonoperative management are preferred for complex fractures in elderly patients with poor bone quality, rotator cuff dysfunction, or osteoarthritis. The preferred management differed between shoulder and trauma surgeons for half of the common PHF presentations, highlighting the need for future research.

Operative Treatment of Proximal Humeral Fractures with Reverse Total Shoulder Arthroplasty in Patients ≥65 Years Old: A Critical Analysis Review

»

The majority of proximal humeral fractures (PHFs) in patients who are ≥65 years of age are treated nonoperatively, but certain complex fracture patterns benefit from surgical intervention. However, there continues to be debate regarding the indications for surgery and the optimal surgical treatment (repair versus replacement) in this population.

»

Reverse total shoulder arthroplasty (RTSA) has grown in popularity for surgical treatment of fracture-dislocations and displaced complex PHFs in patients who are ≥65 years of age; it has definite advantages over surgical repair and hemiarthroplasty, but this finding requires additional higher-quality evidence.

»

RTSA provides early pain relief and return of shoulder function as well as predictable elevation above shoulder level in the forward plane, but the indications for and understanding of the effect of timing on RTSA after a PHF continue to evolve.

»

RTSA for an acute PHF is indicated in patients who are ≥65 years of age with 3- and 4-part fracture-dislocations, head-split fractures, and severely displaced fractures, and is an option in patients who are not able to tolerate nonoperative treatment of severely displaced 3- and 4-part fractures.

»

RTSA is also indicated as a salvage operation for PHFs that have failed initial surgical repair (i.e., fixation failure, implant failure, rotator cuff failure, or osteonecrosis) and is an option for symptomatic nonunion or malunion after nonoperative treatment.

Comparison of 30-day complications between reverse shoulder arthroplasty and open reduction internal fixation for the treatment of proximal humerus fractures

PURPOSE

While the use of open reduction internal fixation (ORIF) has remained stable over the last decade, there has been a significant increase in the use of reverse total shoulder arthroplasty (RTSA) for proximal humerus fractures (PHFs). This study sought to compare the complication profiles of RTSA to ORIF in a large, validated, retrospective cohort.

METHODS

Patients who underwent surgical treatment for PHFs with RTSA or ORIF were identified in a national database (NSQIP) using CPT and ICD codes. Demographics and comorbidities were identified for each cohort of patients. Thirty-day complications were analyzed with univariate and multivariate analyses using Chi-square, Fischer's exact and analysis of variance testing.

RESULTS

The total number of patients included in this study was 2157.522 (24.2%) underwent RTSA and 1635 (75.8%) underwent ORIF. Patients undergoing RTSA were older with an average age of 73.52 years compared with 63.84 years in those undergoing ORIF (p < 0.001). Patients with RTSA were more likely to experience any complications (p < 0.001), pulmonary complications (p = 0.029), extended length of stay > 3 days (p < 0.001), and perioperative transfusion requirement (p < 0.001) after univariate analysis. After controlling for demographic differences, the only statistically significant complication was perioperative transfusion requirement (OR 1.383).

CONCLUSION

After controlling for demographic variables and comorbidities, RTSA placed patients at increased risk for perioperative blood transfusion. Patients undergoing RTSA should be counseled prior to surgery regarding the risk for transfusion and potentially optimized medically through multidisciplinary care if the surgeon elects to proceed with RTSA versus ORIF for the treatment of PHFs.

Readmission, Reoperation, and Non-home Discharge Rates in Patients Receiving Surgical Treatment for Proximal Humerus Fractures

Background

Proximal humerus fractures (PHFs) are generally surgically treated with open reduction internal fixation (ORIF), hemiarthroplasty (HA), or total shoulder arthroplasty (TSA). Diverse fracture patterns and a high prevalence in the elderly population make it difficult to establish objective guidelines for the decision to undergo surgical treatment. The purpose of this study was to investigate risk factors associated with readmission, reoperation, and nonhome discharge following ORIF, HA, and TSA for PHFs.

Methods

Data on all patients who underwent ORIF, TSA, or HA for treatment of closed PHF between 2015 and 2017 were obtained by querying the American College of Surgeons National Surgical Quality Improvement database. Rates of postoperative readmission, nonhome discharge, and reoperation within 30 days were collected. Multivariate logistic regression was employed to identify predictors of readmission, nonhome discharge, and reoperation.

Results

A total of 2825 patients were included in this study: 1829 underwent ORIF, 707 underwent TSA, and 289 underwent HA. The significant predictors for readmission were having an American Society of Anesthesiologists class ≥ 3 (odds ratio [OR] 1.95, P = .003) and being of dependent functional status (OR 3.15, P < .001). The significant predictors for reoperation were male sex (OR 2.41, P < .001) and dependent functional status (OR 2.92, P = .006). The significant predictors for nonhome discharge were age 66-80 years (OR 7.00, P < .001), age ≥ 81 years (OR 16.31, P < .001), American Society of Anesthesiologists ≥3 (OR 2.34, P < .001), dependent functional status (OR 2.48, P < .001), and inpatient status (OR 3.32, P < .001). TSA showed slightly higher rates of nonhome discharge than HA and ORIF.

Conclusion

Significant risk factors for readmission, reoperation, and nonhome discharge within 30 days following surgical treatment for PHF were identified. Additionally, TSA was significantly associated with nonhome discharge compared with HA and ORIF.

Factors Influencing Acromial and Scapular Spine Strain after Reverse Total Shoulder Arthroplasty: A Systematic Review of Biomechanical Studies

BACKGROUND

Acromial and scapular spine fractures after reverse total shoulder arthroplasty (RTSA) can be devastating complications leading to substantial functional impairments. The purpose of this study was to review factors associated with increased acromial and scapular spine strain after RTSA from a biomechanical standpoint.

METHODS

A systematic review of the literature was conducted based on PRISMA guidelines. PubMed, Embase, OVID Medline, and CENTRAL databases were searched and strict inclusion and exclusion criteria were applied. Each article was assessed using the modified Downs and Black checklist to appraise the quality of included studies. Study selection, extraction of data, and assessment of methodological quality were carried out independently by two of the authors. Only biomechanical studies were considered.

RESULTS

Six biomechanical studies evaluated factors associated with increased acromial and scapular spine strain and stress. Significant increases in acromial and scapular spine strain were found with increasing lateralization of the glenosphere in four of the included studies. In two studies, glenosphere inferiorization consistently reduced acromial strain. The results concerning humeral lateralization were variable between four studies. Humeral component neck-shaft angle had no significant effect on acromial strain as analysed in one study. One study showed that scapular spine strain was significantly increased with a more posteriorly oriented acromion (55° vs. 43°; p < 0.001). Another study showed that the transection of the coracoacromial ligament increased scapular spine strain in all abduction angles (p < 0.05).

CONCLUSIONS

Glenoid lateralization was consistently associated with increased acromial and scapular spine strain, whereas inferiorization of the glenosphere reduced strain in the biomechanical studies analysed in this systematic review. Humeral-sided lateralization may increase or decrease acromial or scapular spine strain. Independent of different design parameters, the transection of the coracoacromial ligament resulted in significantly increased strains and scapular spine strains were also increased when the acromion was more posteriorly oriented. The results found in this systematic review of biomechanical in-silico and in-vitro studies may help in the surgical planning of RTSA to mitigate complications associated with acromion and scapular spine fracture.

Comparison of Early Range of Motion in Reverse Shoulder Arthroplasty Based on Indication: A Single Center Retrospective Review

Background

Reverse shoulder arthroplasty (RSA) is commonly used in the treatment of rotator cuff arthropathy. Indications for RSA have expanded to include complex proximal humerus fractures. Studies directly comparing outcomes between traumatic and traditional elective indications are limited. The purpose of this study was to compare early active range of motion (aROM) within the first two years postoperatively between traumatic and non-traumatic primary RSA, as well as compare ASES scores, and patient satisfaction at final follow-up.

Methods

A retrospective analysis was conducted of all RSA performed by a single surgeon between January 2000 and December 2018. Patients were grouped by indication into traumatic and non-traumatic elective groups. Demographics, surgical data, and routine aROM data were collected. aROM was compared at 3, 6, 12, and 24 months. American Shoulder and Elbow Surgeons (ASES) score and patient satisfaction were determined at the time of this investigation.

Results

367 RSA procedures were performed by the senior author during the study period, 88 for fracture (24%), and 279 for non-traumatic elective indications (76%). Forward elevation and external rotation were inferior in the fracture group at all time points in the first two years. Internal rotation was equivalent throughout the first two years. Final ASES scores were 77.6 versus 83.5 in the fracture and non-fracture groups, respectively (p = .33).

Conclusion

Patients undergoing RSA for fracture had statistically significant inferior aROM in forward elevation and external rotation throughout the first two years. Despite having inferior aROM, ASES scores and patient satisfaction at final follow-up were statistically equivalent.

Level of Evidence

Level III; Retrospective Cohort Comparision; Prognosis Study

Outcomes of Reverse Total Shoulder Arthroplasty for Proximal Humerus Fracture Using Uncemented Stems, a Single Center Study

Background

To evaluate the clinical, functional, radiographic, and survival outcomes in patients undergoing reverse total shoulder arthroplasty (RSA) with uncemented stem fixation for proximal humerus fractures.

Materials and Methods

This is a retrospective cohort study that evaluated a consecutive series of patients with proximal humerus fractures undergoing RSA. Clinical data, radiographs, and re-operation rates were reviewed in patients selected for uncemented stem fixation. The same parameters were compared to the remainder of the cohort undergoing cemented stem fixation.

Results

The uncemented group (n = 16, median total follow-up = 108 weeks) and cemented group (n = 12, median total follow-up = 223 weeks, p = 0.110) did not differ statistically in pre-operative demographic, post-operative outcomes or incidence of complications. Two patients (12.5%) in the uncemented group required a reoperation (Week 52 and 180) versus none in the cemented group.

Conclusion

Uncemented stem fixation in RSA for proximal humerus fractures does not yield worse results than cemented stem fixation in properly selected patients. Prospective non-inferiority trials comparing outcomes are recommended.

One size may not fit all: patient-specific computational optimization of locking plates for improved proximal humerus fracture fixation

BACKGROUND

Optimal treatment options for proximal humerus fractures (PHFs) are still debated because of persisting high fixation failure rates experienced with locking plates. Optimization of the implants and development of patient-specific designs may help improve the primary fixation stability of PHFs and reduce the rate of mechanical failures. Optimizing the screw orientations in locking plates has shown promising results; however, the potential benefit of subject-specific designs has not been explored yet. The purpose of this study was to evaluate by means of finite element (FE) analyses whether subject-specific optimization of the screw orientations in a fixed-angle locking plate can reduce the predicted cutout failure risk in unstable 3-part fractures.

METHODS

FE models of 19 low-density proximal humeri were generated from high-resolution computed tomographic images using a previously developed and validated computational osteosynthesis framework. The specimens were virtually osteotomized to simulate unstable malreduced 3-part fractures and fixed with the PHILOS plates using 6 proximal locking screws. The average principal compressive strain in cylindrical bone regions around the screw tips-a biomechanically validated surrogate for the risk of cyclic screw cutout failure-was defined as the main outcome measure. The angles of the 6 proximal locking screws were optimized via parametric analysis for each humerus individually, resulting in subject-specific screw orientations (SSO). The average peri-implant strains of the SSO were statistically compared with the previously reported cohort-specific (CSO) and original PHILOS screw orientations (PSO) for females vs. males.

RESULTS

The optimized SSO significantly reduced the peri-screw bone strain vs. CSO (6.8% ± 4.0%, P = .006) and PSO (25.24% ± 7.93%, P < .001), indicating lower cutout risk for subject-specific configurations. The benefits of SSO vs. PSO were significantly higher for women than men.

CONCLUSION

The findings of this study suggest that subject-specific optimization of the locking screw orientations could lead to lower cutout risk and improved PHF fixation. These computer simulation results require biomechanical and clinical corroboration. Further studies are needed to evaluate whether the potential benefit in stability could justify the increased efforts related to implementation of individualized implants. Nevertheless, computational exploration of the biomechanical factors influencing the outcome of fracture fixations could help better understand the fixation failures and reduce their incidence.

Proximal Humerus Fractures: Epidemiology and trends in surgical management of hospital-admitted patients in Portugal

Background

Proximal humerus fractures (PHFs) are frequent and associated with significant health care burden. National epidemiological data are limited. Our objective is to characterize the Portuguese population admitted with PHFs and analyze therapeutic management, the impact of associated lesions, and mortality rate.

Methods

This was a retrospective, observational study of admissions from mainland public hospitals (2000-2015), with primary or secondary diagnosis of PHFs. Incomplete records, pathologic lesions, malunion/nonunion, and hardware removal were excluded. Age, gender, admission date, hospitalization period, associated injuries, treatment, and mortality were recorded.

Results

A total of 19,290 patients were included. Through the analyzed period, an increase in the absolute number and incidence of PHFs was observed. The mean age at diagnosis was 62.6 ± 21.0 years old (57% elderly; 63.5% female). The mean length of stay was 10.0 ± 14.1 days, higher in patients submitted to arthroplasty (P < .001) and in those with associated fractures (25%; P < .001). A total of 14,482 patients were operated, most frequently with open reduction and internal fixation (28%). The inpatient mortality rate was 3.2%, significantly higher in patients with associated fractures (odds 2.77 for lower limb vs. upper limb).

Conclusion

There is a trend toward an increase in surgical management of PHFs. The relative proportion of open reduction and internal fixation and arthroplasty (particularly reverse arthroplasty) increased, probably reflecting biomechanical implant properties, fracture pattern, and demand for better functionality. Associated fractures are an important comorbidity, associated with increased mortality and length of stay.

Proximal humeral fractures treated with an intramedullary cage and plate: clinical and radiographic outcomes at a minimum of 1 year postoperatively

BACKGROUND

Proximal humeral fractures are common injuries. Although certain fracture types may benefit from surgery including open reduction-internal fixation (ORIF), the optimal method for fixation is unclear. Newer implant designs that improve healing by minimizing hardware failure and recurrent fracture displacement may optimize clinical outcomes.

METHODS

Over a 27-month period, 37 consecutive patients with proximal humeral fractures were treated by a single surgeon with a lateral humeral plate through which an intramedullary nitinol cage was inserted. Additional screws were placed through the tuberosities and cage as required. Fractures were classified by both the Neer classification and angulation or displacement in the coronal plane. At most recent follow-up, radiographic results, patient-reported outcome measurements, range of motion, complications, and reoperations were recorded.

RESULTS

Thirty-one patients had a minimum of 1 year of clinical and radiographic follow-up. The average follow-up period was 91 weeks. By use of the Neer classification, there were 4 two-part, 21 three-part, and 6 four-part fractures. Twenty-one fractures were displaced in valgus and 10 in varus. Outcome measurements at most recent follow-up demonstrated an average American Shoulder and Elbow Surgeons score of 68; Single Assessment Numeric Evaluation score of 70; Quick Disabilities of the Arm, Shoulder and Hand score of 27; Veterans RAND-12 Physical Component Score of 37 and Mental Component Score of 51; Constant score of 55; Patient-Reported Outcomes Measurement Information System score of 29; and Oxford Shoulder Score of 23. Average active range of motion showed forward elevation of 134°, abduction of 91°, external rotation with the arm at the side of 30° (range, -10° to 60°), and internal rotation with the arm at the side to L1 (range, T6-S4). There were 11 complications (35%), including 2 cases of axillary nerve neurapraxia that resolved and 4 cases of avascular necrosis (13%). Unplanned reoperations were performed in 6 patients (19%). One patient underwent revision for loose hardware removal, 1 patient underwent revision ORIF after a fall, and 4 patients required component removal and revision to shoulder arthroplasty. No screw cutout or varus head collapse occurred.

CONCLUSION

The management of proximal humeral fractures remains challenging. Our results demonstrate similar fracture healing, clinical improvement, and complication rates compared with conventional ORIF with screws and a side plate. At 1 year of follow-up, there were low rates of recurrent fracture displacement and screw cutout. There was a higher-than-expected rate of avascular necrosis as compared with other studies using a similar fixation construct. Larger studies and longer follow-up may demonstrate decreased rates of revision surgery and superior outcomes. Additional studies may determine whether this fixation method is superior to others for proximal humeral fractures.

How age and gender influence proximal humerus fracture management in patients older than fifty years

Background

As the aging population expands, proximal humerus fractures have become more prevalent. This study aimed to evaluate acute management of proximal humerus fractures in women and men older than the age of 50 years to determine how gender and age have affected definitive treatment selection over the last decade.

Methods

Patient records were retrospectively reviewed from a commercially available database, PearlDiver, to identify treatments for proximal humerus fractures between 2010 and 2019. Data were separated by age into two cohorts, patients aged 50-64 years and those aged 65 years and older before stratification by gender. Within each cohort, groups were matched with respect to age, region, and Elixhauser comorbidity index. Logistic regression analyses were performed to determine which gender was associated with a higher risk of undergoing operative treatment, which gender was associated with a higher risk of receiving arthroplasty, and which of the individual surgical operations were more likely given the patient’s gender and age.

Results

In the 50- to 64-year-old cohort, men were less likely to be treated operatively than women (odds ratio [OR]: 0.90). However, men in this cohort had a 31% higher likelihood of receiving an arthroplasty procedure than women when given operative treatment. Specifically, men aged 50 to 64 years were more likely to receive hemiarthroplasty (OR: 1.48) and intramedullary nailing (OR: 1.19) and were less likely to have open reduction internal fixation (ORIF) (OR: 0.71). In the 65 years and older cohort, there was no relationship between gender and the likelihood of operative treatment for a proximal humerus fracture. Men older than 65 years had a 29% lower likelihood of receiving an arthroplasty type procedure than women older than 65 years. In addition, men older than 65 years were more likely to receive ORIF (OR: 1.14) and intramedullary nailing (OR: 1.43) and less likely to receive hemiarthroplasty (OR: 0.86) and reverse total shoulder arthroplasty (OR: 0.66) than similarly aged women.

Conclusion

Both age and gender have an association with the definitive treatment patients received for proximal humerus fractures over the last decade. Women younger than 65 years of age were more likely to undergo operative treatment, although once older than 65 years, there was no influence of gender on operative treatment. Men younger than 65 years were more likely to receive arthroplasty and women, more likely to undergo ORIF; however, as patients reached the age of 65 years and older, this finding was reversed such that women were more likely to receive arthroplasty and men, ORIF. Further exploration into these differences could improve decision-making between surgeons and patients.

Quotation errors related to the Proximal Fracture of the Humerus Evaluation by Randomization (ProFHER) study

AIM

The aim of this study was to assess the accuracy of quotations of the Proximal Fracture of the Humerus Evaluation by Randomization (ProFHER) study in the published literature.

METHODS

A literature search was performed from March 2015 to November 2019 to identify all papers that reference ProFHER since its publication. Full text articles were reviewed by two independent reviewers using a validated framework of assessing quotation errors. A kappa co-efficient was calculated to assess interobserver reliability of the reviewers.

RESULTS

There were 260 individual ProFHER quoted references within the 138 included articles. We identified 35/260 quotation errors (13%). Of these, 10/35 (29%) were major quotation errors and 25/35 (71%) minor quotation errors. There was substantial interobserver agreement when errors were classified. Of the 10 major errors, six quotations were not substantiated by the results of ProFHER and three were unrelated to ProFHER. One paper contained a quotation error that contradicted the results of ProFHER. Of the 25 minor errors, 19 oversimplified or generalised the conclusions of ProFHER and six contained numerical or grammatical errors.

CONCLUSION

The current study demonstrated substantial inaccuracies in quotations of the Proximal Fracture of the Humerus Evaluation by Randomization study. Vigilance is recommended when quoting the literature and reviewing submitted papers in order to prevent the perpetuation of misquoted data.

Comparing Relative Value Units among Shoulder Arthroplasty, Hemiarthroplasty, and ORIF for Proximal Humerus Fractures in the Elderly: Which is Most Worth Your Time?

Background

Relative value units (RVUs) are assigned to Current Procedural Technology (CPT) codes and give relative economic values to the services physicians provide. This study compared the RVU reimbursements for the surgical options of proximal humerus fractures in the elderly, which include arthroplasty (reverse [RSA] and total [TSA]), hemiarthroplasty (HA), and open reduction and internal fixation (ORIF).

Methods

Using the National Surgical Quality Improvement Program, a total of 1,437 patients of at least 65 years of age with proximal humerus fractures between 2008 and 2016 were identified. Of those, 259 underwent RSA/TSA (CPT code 23472), 418 underwent HA (CPT codes 23470 and 23616), and 760 underwent ORIF (CPT code 23615). Univariate analysis compared RVU per minute, reimbursement rate, and the average annual revenue across cohorts based on respective operative times.

Results

RSA/TSA generated a mean RVU per minute of 0.197 (SD 0.078; 95%CI [0.188, 0.207]), which was significantly greater than the mean RVU per minute for 23470 HA (0.156; SD 0.057; 95%CI [0.148, 0.163]), 23616 HA (0.166; SD 0.065; 95%CI [0.005, 0.156]), and ORIF (0.135; SD 0.048; 95%CI [0.132, 0.138]; P<0.001). This converted to respective reimbursement rates of $6.97/min (SD 2.78; 95%CI [6.63, 7.31]), $5.48/min (SD 2.05; 95%CI [5.22, 5.74]), $5.83/min (SD 2.28; 95%CI [5.49, 6.16]) and $4.74/min (SD 1.69; 95%CI [4.62, 4.87]). After extrapolation, respective average annual revenues were $580,386, $456,633, $475,077, and $395,608.

Conclusion

RSA/TSA provides significantly greater reimbursement rates compared to HA and ORIF. Orthopaedic surgeons can use this information to optimize daily procedural cost-effectiveness in their practices.