Total Elbow Arthroplasty Research Articles

Outcomes and risk factors for failure after débridement, antibiotics, and implant retention for elbow periprosthetic joint infection

Evidence for the management of periprosthetic joint infection (PJI) after total elbow arthroplasty is sparse, particularly in regard to débridement, antibiotics, and implant retention (DAIR). This study explored the outcomes of DAIR and analyzed risk factors for failure. A retrospective cohort study of patients 18years or older diagnosed with elbow PJI and managed with DAIR between January 1, 2003, and December 31, 2018, at a single institution was performed. Twenty-six elbows met the inclusion criteria during the study period. All DAIR procedures included in this study represented an attempt to manage an acute PJI with surgical irrigation and débridement without removal of the elbow arthroplasty components, followed by long-term systemic antimicrobial therapy. DAIR failure was defined as recurrence of PJI, unplanned re-operation for infection, or death secondary to infection. A Cox proportional hazards model was used to identify possible risk factors for failure. DAIR failed in 17 cases of elbow PJI with a failure rate of 65% at 2years (95% confidence interval: 41.3%-79.6%). The median time to failure from DAIR was 43days (interquartile range: 27-114). We found that DAIR failed in all cases with sinus tracts or negative cultures. The group with favorable outcomes had a shorter median duration of symptoms (5 vs. 18days, P=.65) and a higher proportion of monomicrobial infections (58.8% vs. 88.9%, P=.19) compared to those with unfavorable outcomes. However, with the numbers available, none of the possible risk factors analyzed for association with failure reached statistical significance. DAIR for elbow PJI was associated with high rates of failure. Possible risk factors for failure may include the presence of sinus tract, longer duration of symptoms, and culture-negative infection. Although the relatively low morbidity of DAIR compared with total elbow arthroplasty implant resection for a one-stage or two-stage reimplantation is attractive, patients considered for DAIR must know that the chance of success is limited to approximately 35%.

Implant survival of total elbow arthroplasty: analysis of 514 cases from the Dutch Arthroplasty Registry.

The aim of this study is to report the implant survival and factors associated with revision of total elbow arthroplasty (TEA) using data from the Dutch national registry. All TEAs recorded in the Dutch national registry between 2014 and 2020 were included. The Kaplan-Meier method was used for survival analysis, and a logistic regression model was used to assess the factors associated with revision. A total of 514 TEAs were included, of which 35 were revised. The five-year implant survival was 91%. Male sex, a higher BMI, and previous surgery to the same elbow showed a statistically significant association with revision (p < 0.036). Of the 35 revised implants, ten (29%) underwent a second revision. This study reports a five-year implant survival of TEA of 91%. Patient factors associated with revision are defined and can be used to optimize informed consent and shared decision-making. There was a high rate of secondary revisions.

Safety of total elbow arthroplasty in patients with rheumatoid arthritis and prior hip or knee periprosthetic joint infection

BackgroundThe volumes of upper and lower extremity arthroplasty are increasing. Periprosthetic joint infection (PJI) after TEA remains a substantial cause of morbidity, with certain studies reporting primary total elbow arthroplasties (TEA) PJI rates over 10%. The odds ratio for hip and knee PJI after previous hip or knee PJI is 3 times, and it rises to 15 times for patients on chronic suppressive antibiotics. The risk of PJI for primary TEA in patients with a history of lower extremity PJI is unknown. The purpose of this study, therefore, was to compare the incidence of PJI after primary TEA in patients with a history of lower extremity PJI in a case-control study. MethodsOur institutional joint registry database was queried to identify all patients who underwent primary TEA and had previously undergone treatment for lower extremity PJI between 1974 and 2021. Twelve elbows (10 patients) with a mean follow-up of 8.2 years were identified. There were 9 female elbows (75%) and 3 male elbows (25%) with a mean age of 63 years (range,44-78 years), and all patients had a diagnosis of rheumatoid arthritis. This cohort was 1:7 matched (age, sex, side, indication, and surgical year) to 84 elbows (83 patients) with no history of lower extremity PJI. There were no statistically significant differences between the cohorts with regard to body mass index or operative time. Survivorship analysis free of TEA PJI with death as a competing risk was calculated. ResultsNone of the 12 TEA included in the study group developed PJI. The cumulative incidence of PJI in the matched cohort at 10 years was 6.4% (5 elbows). There was 1 superficial infection in the study group (9.1%) and 5 (5.8%) in the matched cohort. In the study group, 2 elbows underwent revision and 4 underwent reoperation. Eight elbows in the matched cohort underwent revision and 23 underwent reoperation. The study cohort was associated with higher risk of revision and reoperation for any cause, but these differences did not reach statistical significance. ConclusionIn this relatively small case control study, there was no incidence of PJI in patients who underwent primary TEA for rheumatoid arthritis and had previously undergone treatment for lower extremity PJI. The cumulative incidence of PJI in the matched cohort at 10 years was 6.4%. Although underpowered to make firm conclusions, it does draw from a very large population of patients and did not reveal an association between infection after TEA and a prior history of lower extremity PJI.

Posterior Flange Cyclic Loading in a Novel Total Elbow Arthroplasty

The goal of this study was to test the static and dynamic strength and loosening resistance of the posterior flange of a novel total elbow arthroplasty. We also examined the forces experienced by the ulnohumeral joint and the posterior olecranon during expected elbow use. Static stress analysis was performed for 3 flange sizes. Failure testing was conducted on 5 flanges (1 medium size and 4 small sizes). Loading occurred to reach 10,000 cycles. If this was accomplished, the cyclic load was increased until failure occurred. If failure occurred before 10,000 cycles, a lower force was employed. The safety factor for each implant size was calculated, and implant failure or loosening was observed. Static testing revealed a safety factor of 6.6, 5.74, and 4.53 for the small, medium, and large flanges, respectively. The medium-sized flange completed 10,000 cycles with 1,000 N at 1 Hz, and then the force was increased until it failed at 23,000 cycles. Two small-sized flanges failed at 2,345 and 2,453 cycles, respectively, when loaded with 1,000 N. Two more small flanges were loaded with 729 N for 10,000 cycles, and then the cyclic load was continued until they failed at 17,000 and 17,340 cycles, respectively. No screw loosening was noted in any specimens. This study demonstrates that the posterior flange withstood static and dynamic forces greater than what is expected during invivo use of a novel total elbow arthroplasty design. Static strength calculation and cyclic loading demonstrate that the medium-sized posterior flange is stronger than the small-sized posterior flange. Ensuring that the ulnar body component and the posterior flange maintain secure connectivity with the polyethylene wear component may be beneficial to the proper function of a novel nonmechanically linked total elbow arthroplasty.

Notching of smooth ulnar stems reduces loosening after total elbow arthroplasty

Background This study aimed to validate the concept of notching of the ulna component of the first-generation latitude total elbow prosthesis to reduce the rate of aseptic loosening and improve implant survival. Methods A total of 18 total elbow arthroplasty cases were performed between June 2001 and May 2002 using the latitude first-generation ulnar stem. A total of 14 cases with at least 2 years of follow-up were evaluated following the exclusion of four infected cases. The senior author roughened the stem surface with notches in 10 cases (notched group) to prevent loosening. The effects of notching on implant failure were retrospectively analyzed. Results Average participant age and follow-up were 56 ± 20 years and 72 ± 44 months, respectively. The notched and unnotched implant groups were demographically equivalent. 3/4(75%) of unnotched group implants failed due to aseptic loosening. 1/10(10%) of the notched group implants failed. All unnotched group aseptic loosening cases occurred at the bone–cement interface within 2 years after total elbow arthroplasty. The single patient with aseptic loosening in the notched group had a history of multiple surgeries due to an open fracture preceding the primary total elbow arthroplasty. Discussion Notching of the ulna component of the first-generation latitude total elbow prosthesis reduced the rate of aseptic loosening and improved implant survival. Level of evidence Level IV, retrospective comparative study.

Fractures of the Capitellum and Trochlea

Capitellar and trochlear fractures are articular injuries of the distal humerus without involvement of the humeral columns. These fractures occur in a bimodal distribution, most commonly after high-energy trauma in young males or ground level falls in elderly females. Open reduction and internal fixation (ORIF) with a variety of implants and exposure techniques is a mainstay of treatment for displaced fractures, while non- or minimally- displaced fractures may be treated non-operatively. Operative management has expanded to include novel arthroscopic and open approaches, such as surgical dislocation of the elbow. Rarely, in elderly patients with severe comminution, total elbow arthroplasty may be the best option. In general, if the capitellar and trochlear injury is appropriately classified, the articular fragments are adequately secured, associated soft tissue injuries are identified and repaired, and a quality therapy program is instituted, patients who sustain these injuries are likely to have a good result with a well-functioning elbow, although complications will occur than 30% of the time.

Triceps Split and Snip Approach for Distal Humerus Fractures.

Background: The senior author adopted a Triceps Split and Snip approach in 2011. This paper details the results of patients for whom this approach was utilised for open reduction and internal fixation of complex AO type C distal humerus fractures. Methods: A retrospective analysis of a single surgeon's cases was conducted. Range of movement, as well as Mayo Elbow Performance Score (MEPS), and QuickDASH scores were evaluated. Two independent consultants with upper extremity practises evaluated pre- and post-operative radiographs. Results: Seven patients were available for clinical review. The mean age at the time of surgery was 47.7 years (range, 20.3-83.2) and the mean follow-up time was 3.6 years (range, 0.58-8). The average QuickDASH score was 15.85 (range, 0-52.3), average MEPS was 86.88 (range, 60-100) and average total arc of movement (TAM) was 103° (range, 70°-145°). All patients demonstrated 5/5 MRC triceps strength compared to the contralateral side. Conclusions: The Triceps Split and Snip approach for complex distal humerus fractures provided comparable mid-term clinical outcomes when compared to other published data regarding distal humerus fractures. It is versatile and does not compromise the intra-operative option of conversion to a total elbow arthroplasty. Level of Evidence: Level IV (Therapeutic).

Complications of Early Versus Delayed Total Elbow Arthroplasty for the Treatment of Distal Humerus Fractures

The purpose of this study was to compare the rates of wound complications and heterotopic ossification (HO) between patients who underwent acute total elbow arthroplasty (TEA) and those who underwent delayed TEA performed for the treatment of distal humerus fractures. Our hypothesis was that delayed surgery will have fewer wound complications but a higher rate of HO. We retrospectively reviewed 104 patients who had undergone TEA performed at 1 of 3 institutions following a distal humerus fracture. The acute cohort, comprising 69 patients, underwent TEA within 2 weeks; the delayed cohort, comprising 35 patients, received treatment between 2 weeks and 6 months. The rates of wound complications, HO, clinically relevant HO (requiring excision or resulting in loss of functional range of motion), and reoperation were recorded. These patients were followed up for an average of 52 (interquartile range, 18.5-117) weeks. Wound complications occurred in 10 patients (14.5%) in the early group and 7 (20.0%) in the delayed group. The overall rate of HO was 56.7% (59 patients). The rate of clinically relevant HO was 26.0% (27 patients), which was similar between the groups. Reoperation occurred in 20 patients (19.2%), which was similar between the groups. In the early group, 3 reoperations were performed for wound complications and 4 for HO. No patients required reoperation for these indications in the delayed group. The mean flexion-extension and supination-pronation arcs were 20°-130° and 80°-80°, respectively, which were similar between the groups. Rheumatoid arthritis and younger age were associated with increased odds of wound complications and reoperation. The rates of reoperation, wound complications, and HO were overall higher than those previously reported; however, the study was underpowered to determine a difference between early and delayed treatment. Therapeutic IV.

Elbow joint biomechanics during ADL focusing on total elbow arthroplasty - a scoping review

BackgroundOverloading is hypothesized to be one of the failure mechanisms following total elbow arthroplasty (TEA). It is unclear whether the current post-operative loading instruction is compliant with reported failure mechanisms. Aim is therefore to evaluate the elbow joint load during activities of daily living (ADL) and compare these loads with reported failure limits from retrieval and finite element studies.MethodsA scoping review of studies until 23 November 2021 investigating elbow joint load during ADL were identified by searching PubMed/Medline and Web of Science. Studies were eligible when: (1) reporting on the elbow joint load in native elbows or elbows with an elbow arthroplasty in adults; (2) full-text article was available.ResultsTwenty-eight studies with a total of 256 participants were included. Methodological quality was low in 3, moderate in 22 and high in 3 studies. Studies were categorized as 1) close to the body and 2) further away from the body. Tasks were then subdivided into: 1) cyclic flexion/extension, 2) push-up, 3) reaching, 4) self-care, 5) work. Mean flexion–extension joint load was 17 Nm, mean varus-valgus joint load 9 Nm, mean pronation-supination joint load 8 Nm and mean bone-on-bone contact force 337 N.ConclusionThe results of our scoping review give a first overview of the current knowledge on elbow joint loads during ADL. Surprisingly, the current literature is not sufficient to formulate a postoperative instruction for elbow joint loading, which is compliant with failure limits of the prosthesis. In addition, our current instruction does not appear to be evidence-based. Our recommendations offer a starting point to assist clinicians in providing informed decisions about post-operative instructions for their patients.

Olecranon fracture fixation with tension band construct after total elbow arthroplasty

PurposeOlecranon fractures are a known and potentially devastating complication of total elbow arthroplasty (TEA), especially if displaced with an incompetent extensor mechanism. The purpose of this study is to present a case series of olecranon fractures after TEA treated with a tension band construct and compare functional results to uncomplicated TEA patients. MethodsSix patients with displaced olecranon fractures in the setting of a prior TEA were identified and included in this retrospective case series. All patients were treated with a tension band construct. Functional scores were collected at a minimum of 1 year postoperatively, including the Mayo Elbow Performance Score (MEPS) and Single Assessment Numeric Evaluation (SANE) elbow score. Radiographs were reviewed at the time of injury and at the latest follow-up for fracture displacement, implant loosening or failure, and osseous union. A matched control group of 10 TEAs without complication was identified for comparison of functional scores. ResultsOne patient was deceased prior to the final follow-up and was not included in the functional score analysis. The average postoperative MEPS was 74 ± 18.5 and the average postoperative SANE score was 69.4 ± 13.7. Average final range of motion was 134 degrees flexion and 18 degrees extension. Three (50%) patients had radiographic signs of osseous union at an average of 3.4 months. One patient had fixation failure and subsequent triceps insufficiency and required multiple reoperations with poor functional scores at the final follow-up. No significant difference was noted in both postoperative MEPS (P = .503) and SANE (P = .142) when comparing patients with olecranon fracture to matched uncomplicated TEA patients. ConclusionTension band fixation of olecranon fractures after prior TEA is able to restore function for a difficult problem despite a 50% radiographic union rate. Patients with this complication can expect similar functional results to uncomplicated TEA patients with proper fixation.

Elbow Arthroplasty: A Concise Literature Update.

Total elbow arthroplasty (TEA) is increasingly used, especially in patients with rheumatoid arthritis (RA) and distal humerus fractures (DHFs). This narrative review of the recent literature published in 2022 reached the following conclusions: 1) Age greater than 80 is not a contraindication for TEA. 2) The estimated 10-year survival reported for linked TEAs is 92%, and unlinked TEAs 84%. 3) For DHFs in the elderly, regarding the flexion/extension arc, TEA gives substantially better results than open reduction and internal fixation (ORIF). The reoperation and elbow stiffness rates are substantially lower in TEA than in ORIF. 4) Comparing distal humeral hemiarthroplasty (DHH) vs. TEA in individuals over 65 years with a non-reconstructable DHF favors DHH regarding the range of motion but with a similarly high rate of adverse events in the two surgical techniques. 5) The rate of eradication of periprosthetic joint infection (PJI) is 69-76% with two-stage, 71% with resection arthroplasty, 67% with one-stage, 58% with DAIR, and 40% with elbow arthrodesis.

Identification of Independent Predictors of Increased 90-Day Complication and Revision Rates Following Total Elbow Arthroplasty.

Total elbow arthroplasty (TEA) is an increasingly popular surgical option for many debilitating conditions of the elbow. There currently exists a paucity of literature regarding patient and hospital factors that lead to inferior outcomes following TEA. The purpose of this study is to identify independent predictors of increased complication and revision rates following TEA. The National Readmissions Database (NRD) was queried from 2011 to 2018 to identify all cases of TEA (n = 8932). Relevant patient demographic factors, comorbidities, and hospital characteristics were identified and run in a univariate binomial logistic regression model. All significant variables were included in a multivariate binomial logistic regression model for data analysis. Independent predictors of increased complication rates included age, female sex, Medicare and Medicaid payer status, medium bed-sized center, and 18 of 34 medical comorbidities (all P < .05). Independent predictors of increased revision rates included medium bed-sized centers, non-teaching hospital status, chronic pulmonary disease, depression, and pulmonary circulatory disorders (all P < .05). This study identified several patient and hospital characteristics that are independently associated with both increased complication and revision rates following TEA. This information can aid orthopedic surgeons during shared decision making when considering TEA in patients. Level III, retrospective cohort study.

Is there a relationship between surgical volume and outcome for total elbow arthroplasty? A systematic review.

Total elbow arthroplasty (TEA) is rarely performed compared to other arthroplasties. For many surgical procedures, literature shows better outcomes when they are performed by experienced surgeons and in so-called 'high-volume' hospitals. We systematically reviewed the literature on the relationship between surgical volume and outcomes following TEA. A literature search was performed using the MEDLINE, EMBASE and CINAHL databases. The literature was systematically reviewed for original studies comparing TEA outcomes among hospitals or surgeons with different annual or career volumes. For each study, data were collected on study design, indications for TEA, number of included patients, implant types, cut-off values for volume, number and types of complications, revision rate and functional outcome measures. The methodological quality of the included studies was assessed using the Newcastle-Ottawa Scale. Two studies, which included a combined 2301 TEAs, found that higher surgeon volumes were associated with lower revision rates. The examined complication rates did not differ between high- and low-volume surgeons. In one study, low-hospital volume is associated with an increased risk of revision compared to high-volume hospitals, but for other complication types, no difference was found. Based on the results, the evidence suggests that high-volume centers have a lower revision rate in the long term. No minimum amount of procedures per year can be advised, as the included studies have different cut-off values between groups. As higher surgeon- and center-volume, (therefore presumably experience) appear to yield better outcomes, centralization of total elbow arthroplasty should be encouraged.

Total Elbow Arthroplasty in Young Patients - An 8-Year Follow-up Case Series.

Certain elbow pathologies can give rise to considerable loss of joint function, which would severely affect the daily living activities of the patients. Total elbow arthroplasty (TEA) can be a safe and reasonable motion-preserving and pain-relieving option in such debilitating elbow conditions. The aim of this case series is to evaluate the functional outcome of TEA in young patients with four different indications after an 8-year follow-up. We report a case series of four TEA cases done for different indications, namely rheumatoid arthritis, chronic elbow dislocation, post-traumatic elbow ankylosis, and failed primary total elbow replacement, all in relatively young patients. All patients were given a semi-constrained Coonrad-Morrey prosthesis using a posterior Bryan-Morrey approach. The cases were done during the years 2013-2014. Eight-year follow-up of each case showed excellent functional outcome and persistent pain relief with a high Mayo Elbow Performance Score. All the patients have given written consent for publishing this article. Despite being uncommon, total elbow replacement can be the choice of surgery for certain elbow affections, giving satisfactory functional recovery and good pain relief, even in a younger population.

A PROSPECTIVE STUDY ON INTERNAL FIXATION WITH AN ORTHOGONAL LOCKING PLATE AND OPEN REDUCTION OF AN INTRA-ARTICULAR DISTAL HUMERUS FRACTURE

Background: Surgery for intra-articular distal humeral fractures can be difficult. Total elbow arthroplasty (TEA) versus open reduction and internal fixation (ORIF) for treating elderly patients is still up for debate. In order to compare ORIF with TEA for treating intra-articular distal humerus fractures in patients, this study compared the clinical and functional results. Methods: Between one and half years at Sri Krishna Medical College Hospital, Muzaffarpur, Bihar, India, 70 willing patients with intra-articular distal humeral fractures who underwent osteosynthesis by orthogonal locking compression plating using posterior approach with olecranon osteotomy participated in a prospective study. Results: With a mean age of 38.5 years, our study included 38 male patients and 32 female patients. A motor vehicle collision accounted for 65.2% of instances, an accidental fall accounted for 21.7%, and a fall from height accounted for 13%, with the right side being more frequently afflicted (73.9%). The average operation lasted 100 minutes. Following surgery, the Mayo Elbow Performance Score was 83.3 percent, and the mean arc of mobility was 117°. 82% of cases had excellent to good outcomes. Conclusions: ORIF demonstrated superior results to TEA in patients with intra-articular distal humerus fracture.

Interposition elbow arthroplasty clinical and functional outcomes: A Systematic review

Objective: Painful and stiff elbow, especially in young patients, results in severe impairment in daily activities. Persistent pain and stiffness despite conservative treatment indicate surgical arthroplasty. Total elbow arthroplasty (TEA) is relatively contraindicated in young patients with high activity due to the risk of early prosthetic loosening. Furthermore, TEA is relatively expensive and inaccessible, especially in developing countries. Interposition elbow arthroplasty has been an alternative to TEA with the possibility of further reconstruction and lower cost. This study aimed to conduct a systematic review of literature evaluating clinical and functional outcomes of various interposition elbow arthroplasty. Methods: We conducted a systematic review to obtain outcomes of interposition elbow arthroplasty. Literature searching was conducted in PubMed, Cochrane Library, and ScienceDirect. We included clinical studies, case series, or case reports related to interposition elbow arthroplasty. Relevant studies were critically appraised by Oxford Central for Evidence-Based Medicine (CEBM) critical appraisal tool. Relevant data including functional outcome, pain, and range of motion (ROM) was then pooled and analyzed. Results: We selected 15 relevant studies including nine retrospective clinical studies, three case series, and three case reports. All studies showed significant improvement of range of motion (ROM) and Mayo Elbow Performance Score (MEPS). The pain score of MEPS also showed improvement in several studies. Pooled study analysis showed an overall Z score of 20.4 (p&lt;0,001) for ROM with a mean difference of 55.5°, Z score of 16.28 (p&lt;0,001) for MEPS, and 9.30 (p&lt;0,001) for MEPS pain score. Conclusion: Interposition elbow arthroplasty significantly improved clinical and functional outcomes postoperatively in patients with stiff and painful elbows.

Outcome of unlinked total elbow arthroplasty for rheumatoid arthritis in patients younger than 50 years old.

There are concerns regarding complications and longevity of total elbow arthroplasty (TEA) in young patients, and the few previous publications are mainly limited to reports on linked elbow devices. We investigated the clinical outcome of unlinked TEA for patients aged less than 50 years with rheumatoid arthritis (RA). We retrospectively reviewed the records of 26 elbows of 21 patients with RA who were aged less than 50 years who underwent primary TEA with an unlinked elbow prosthesis. The mean patient age was 46 years (35 to 49), and the mean follow-up period was 13.6 years (6 to 27). Outcome measures included pain, range of motion, Mayo Elbow Performance Score (MEPS), radiological evaluation for radiolucent line and loosening, complications, and revision surgery with or without implant removal. The mean MEPS significantly improved from 47 (15 to 70) points preoperatively to 95 (70 to 100) points at final follow-up (p < 0.001). Complications were noted in six elbows (23%) in six patients, and of these, four with an ulnar neuropathy and one elbow with postoperative traumatic fracture required additional surgeries. There was no revision with implant removal, and there was no radiological evidence of loosening around the components. With any revision surgery as the endpoint, the survival rates up to 25 years were 78.1% (95% confidence interval 52.8 to 90.6) as determined by Kaplan-Meier analysis. The clinical outcome of primary unlinked TEA for young patients with RA was satisfactory and comparable with that for elderly patients. A favourable survival rate without implant removal might support the use of unlinked devices for young patients with this disease entity, with a caution of a relatively high complication rate regarding ulnar neuropathy.Level of Evidence: Therapeutic Level IVCite this article: Bone Jt Open2023;4(1):19-26.

Radiocapitellar Arthroplasty: Systematic Review.

Primary elbow osteoarthritis affects approximately 2% of the population, and has been treated with arthroplasty. However, total elbow arthroplasty (TEA) implants currently have severe weight limitations and issues with longevity. In patients with unicompartmental arthritis, unicompartmental arthroplasty may be used instead of TEA. We describe the use of Uni-Elbow Radio-Capitellum and Lateral Resurfacing Elbow for radiocapitellar arthroplasty (RCA) in this article. Reviewers independently searched databases for keywords, such as radiocapitellar arthroplasty, RCA, uni-elbow radiocapitellum, UNI-E, and lateral resurfacing elbow, LRE. The measured outcomes of interest were the change in motion arc and patient-reported outcome scores. Studies that were not of appropriate quality determined by the Cochrane risk of bias summary tool and review studies were excluded. RCA resulted in a postoperative 38.3° ± 28.5° increase in elbow flexion-extension (P < .001), and 35.2° ± 28.6° increase in elbow pronation-supination (P < .001). Mayo Elbow Performance Score was significantly increased by 44.8 ± 12.6. DASH Score saw a significant reduction by 45.0 ± 14.6 points (P < .001), while the American Shoulder and Elbow Surgeons Score increased by 47.0 ± 10.6 points (P < .001). Of the 105 adult patients 16.2% experienced complications such as minor stiffness, ulnar neuropathy, component loosening, or radial head UNI-E stem failure. Reported complications were higher in the UNI-E group than in the LRE group. RCA has shown promise as an option to treat radiocapitellar arthritis, particularly when excising the radial head causes lateral column instability.

Nail-stem construct method for periprosthetic humeral fractures with recalcitrant nonunion after total elbow arthroplasty: A surgical technique.

The objective of this study was to describe the surgical technique using an innovative nail-stem construct in treatment of periprosthetic humeral fractures with recalcitrant nonunion after total elbow arthroplasty (TEA). Patients diagnosed with humeral recalcitrant nonunion in periprosthetic fractures and stem loosening after TEA were retrospectively recruited between 2018 and 2019. The demographic data and related clinical outcomes were recorded. We use a cutting length of the nail pushing into the humeral canal and then pull back distally to dock the tip of the humeral stem. The cement was packed into the humeral canal, and the periprosthetic bone defect was impacting with harvested allograft chip. Patient age, gender, lesion site, number of previous surgeries, and the time period from the primary TEA to the nail-stem reconstruction were allocated. Moreover, the range of motion, degree of elbow stability, and level of pain were evaluated for each patient following this procedure. All the four patients achieved an optimal range of motion and secure stability with painless elbow at final follow-up. Our proposed nail-stem construct with double allogenous bone plate is a feasible alternative for revisional TEA in patients with implant loosening, periprosthetic humeral fractures, and recalcitrant nonunion.

Outcomes of Humeral Allograft-Prosthetic Composites with Plate Fixation in Revision Total Elbow Arthroplasty.

Traditionally, the reconstruction of severe distal humeral bone loss at the time of revision total elbow arthroplasty (TEA) has used allograft-prosthetic composites (APCs) stabilized with cerclage wires or cables. We have migrated to plate fixation when revision TEA using a humeral APC is performed. This study shows the outcomes of patients treated with a humeral APC with plate fixation during revision TEA. Between 2009 and 2019, 41 humeral APCs with plate fixation of distal humeral allograft to the native humerus were performed in the setting of revision TEA. There were 12 male patients (29%) and 29 female patients (71%), with a mean age of 63 years (range, 41 to 87 years). The mean allograft length was 12 cm. All elbows had a minimum follow-up of 2 years (mean follow-up, 3.3 years). Patients were evaluated for visual analog scale pain scores, range of motion, the ability to perform select activities of daily living, and the Mayo Elbow Performance Score (MEPS). Outcomes including reoperations, complications, and revisions were noted. The most recent radiographs were evaluated for union at the allograft-host interface, failure of the plate-and-screw construct, or component loosening. The mean postoperative flexion was 124° (range, 60° to 150°) and the mean postoperative extension was 26° (range, 0° to 90°); the mean arc of motion was 99° (range, 30° to 150°). The mean MEPS was 58 points (range, 10 to 100 points). Two surgical procedures were complicated by neurologic deficits. The overall reoperation rate was 14 (34%) of 41. Of the 33 patients with complete radiographic follow-up, 12 (36%) had evidence of nonunion at the allograft-host interface with humeral component loosening, 1 (3%) had evidence of partial union, and 1 (3%) had ulnar stem loosening. Revision TEA with a humeral APC using compression plating was successful in approximately two-thirds of the elbows. Further refinement of surgical techniques is needed to improve union rates in these complex cases. Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.