Complex fractures of the distal humerus in the elderly. The role of total elbow replacement as primary treatment

Distal Humerus Fractures Managed With Elbow Hemiarthroplasty

Background

Distal humerus fractures not amenable to open reduction internal fixation (ORIF) present a unique dilemma, especially for patients that weight bear through assistive devices. The one accepted operative treatment for irreparable distal humerus fractures is total elbow arthroplasty (TEA). However, TEA commonly requires lifetime weight lifting restrictions and has limited long term results. Elbow hemiarthroplasty (EHA) represents an alternative treatment modality. This study reviews patients treated with EHA permitted to weight bear postoperatively.

Methods

Twelve patients underwent EHA for comminuted distal humerus fractures deemed non-reconstructable by ORIF. Patient survey data was collected retrospectively. All patients were allowed to weight bear as tolerated through the operative extremity. Outcome measures included Patient rated elbow evaluation (PREE), Mayo elbow performance score (MEPS), and whether revision surgery was required.

Results

The average MEPS score was 76.1 indicating fair outcomes and the average PREE score was 41. One patient required revision. Average follow up was 44.1 months. Three patients required an assistive device prior to injury.

Discussion

EHA serves as a viable option for non-reconstructable distal humerus fractures. EHA does not require a weight lifting restriction, which is a benefit over TEA. Overall, patients reported preserved functional capabilities but did report moderate pain. EHA demonstrated durability, although one patient required revision.

Conclusion

With growing interest in use of EHA, further studies are required to evaluate EHA as a superior treatment for patients with nonreconstructable traumatic distal humerus fractures; however, this study does support use in elderly patients with intermediate follow up.

Comparison of open reduction and internal fixation with total elbow arthroplasty for intra-articular distal humeral fractures in older age: a retrospective study

Background

Intra-articular distal humeral fractures can be surgically challenging. It remains under discussion whether open reduction and internal fixation (ORIF) or total elbow arthroplasty (TEA) is more beneficial for treatment of the elderly. This study aimed to compare the clinical and functional outcomes of ORIF and TEA for managing intra-articular distal humerus fractures in patients aged 65 years or older.

Methods

Patients who underwent ORIF (n=28) or TEA (n=43) for in intra-articular distal humerus fracture between May 2008 and December 2018 were reviewed. Range of motion, Mayo Elbow Performance Score (MEPS), Disabilities of the Arm, Shoulder, and Hand (DASH) score, radiologic outcomes, and surgical complications were evaluated at the final follow-up visit.

Results

The ORIF and TEA groups showed a mean arc of flexion–extension of 97°±21° and 101°±12°, respectively. The mean MEPS and DASH scores were 94±15 and 27±12 points, respectively, in the ORIF group and 81±27 and 47±28 points in the TEA group. This difference was statistically significant. The incidence of total complications was similar between the groups.

Conclusions

In patients older than 65 years with intra-articular distal humerus fracture, ORIF had better outcomes than TEA.

Coronal shear fractures of the distal humerus: Current concepts and surgical techniques

Coronal shear fractures of the distal humerus are a unique subset of distal humeral fractures which entail partial or complete articular fractures of the distal humerus without involvement of the columns. The very distal nature of these fragments, their small size and propensity for comminution render them challenging to treat surgically. The purpose of this article is to describe the classification, outcomes and surgical techniques currently used for the treatment of these fractures using the available literature and authors' clinical experience.

Physiological Loading of the Coonrad/Morrey, Nexel, and Discovery Elbow Systems: Evaluation by Finite Element Analysis

PURPOSE

Wear of polyethylene bearings represents a limiting factor in the long-term success of total elbow prostheses. Bearing stress is 1 factor contributing to accelerated wear. Physiological loading of total elbow prostheses and implant design influence upon bearing stresses have not been well described. This study evaluates bearing stresses in 3 commercially available implant designs under loads associated with daily living.

METHODS

Motion tracking from a healthy volunteer helped establish a musculoskeletal model to simulate flexor and extensor muscle activation at 0°, 45°, and 90° of shoulder abduction with a 2.3-kg weight in hand-forces and moments were measured at the elbow. Resulting physiological joint reaction forces and moments were applied to finite element models of 3 total elbow bearing designs (Coonrad/Morrey, Nexel, and Discovery) to evaluate contact area and polyethylene stresses.

RESULTS

Increasing shoulder abduction resulted in minimal changes to the elbow joint reaction force but greater joint moments. All implants showed greater peak stresses with increasing shoulder abduction-elbow varus. Discovery and Nexel achieved greater contact area (23% vs > 100%) and demonstrated up to 39% lower peak polyethylene stresses compared with the Coonrad/Morrey design.

CONCLUSIONS

Shoulder abduction results in a varus moment at the elbow. Newer bearing designs (Nexel and Discovery) provide a combination of higher contact area, improved load sharing, reduced edge loading, and lower stresses through elbow range of motion when compared with a cylindrical hinge-bearing design (Coonrad/Morrey).

CLINICAL RELEVANCE

Although the Coonrad/Morrey is a clinically successful prosthesis, our physiological loading model shows that Discovery and Nexel provide greater contact area, better load sharing and lower peak stresses. This may lead to a decrease in polyethylene wear rates and the eventual risks of osteolysis and aseptic loosening. Further studies are needed to determine how these findings translate clinically.

Intra-articular fractures of the distal humerus-a review of the current practice

Intra-articular fractures of the distal humerus are complex injuries that can considerably limit elbow function if not treated appropriately. Surgical management is indicated for most intra-articular distal humerus fractures with the goal of restoring elbow range of motion and function. Open reduction and internal fixation (ORIF) with plates and screws has been the preferred surgical option. Double plating is recommended for bicolumnar fractures and plates can be applied either parallel or orthogonal to each other. Surgical approach for ORIF of the distal humerus can be performed through an olecranon osteotomy, but other approaches that preserve the olecranon are also in use, such as the triceps-reflecting, triceps-splitting, paratricipital, and triceps-reflecting anconeus pedicle approach. The ulnar nerve is identified during the approach, followed by either in situ decompression or anterior transposition. Elbow arthroplasty has also emerged as a viable alternative to ORIF for fixation of these fractures in elderly patients with poor bone quality.

Open reduction and internal fixation for nonunion of extra-articular distal humeral fractures in patients 70 years and older

HYPOTHESIS

The study purpose was to report the clinical and radiologic outcomes of osteosynthesis by open reduction and internal fixation for nonunion of extra-articular distal humeral fractures in patients aged 70 years or older.

MATERIALS AND METHODS

This retrospective study included 28 patients who received osteosynthesis treatment between March 2010 and December 2015. Primary conservative treatment had failed in all patients. All surgical procedures were performed via the posterior approach without olecranon osteotomy and with the use of double-locking plates for each column.

RESULTS

The mean patient age was 72 years, and surgical procedures were performed a mean of 7.6 months after injury. Preoperatively, extension-flexion was 32° to 101° and forearm pronation-supination was 74° to 47°. The mean visual analog scale score was 4; the mean Mayo Elbow Performance Score was 50; and the mean Disabilities of the Arm, Shoulder and Hand score was 58. All cases showed proper union after a mean of 5.2 months. At the final follow-up examination, the extension-flexion and rotation arcs had improved significantly (to 20° to 124° and to 80° to 66°, respectively; both P < .001), and all clinical scores were satisfactory (visual analog scale score, 1; Mayo Elbow Performance Score, 65; and Disabilities of the Arm, Shoulder and Hand score, 24; all P < .001). Ulnar nerve transposition was performed in 7 patients, and no distinct ulnar nerve symptom was observed in any patient at the final follow-up examination.

CONCLUSIONS

We consider osteosynthesis by open reduction and internal fixation as a recommended option for extra-articular distal humeral fractures in elderly patients aged 70 years or older in whom conservative treatment has failed.

Challenges and Solutions in Management of Distal Humerus Fractures

Background

Management of distal humerus fractures remains a challenge for trauma surgeons and advancements in treatment options continue to be made to achieve the best results for patients presenting with these complex fractures. Our aim in this article is to provide the surgeons with a detailed review of current literature to help them make an evidence based decision when faced with managing such complex injuries in their surgical practice.

Methods

This is a comprehensive review of the current literature that details various aspects of distal distal humerus fractures such as classification, surgical anatomy, surgical approaches, treatment options, choices of devices, outcomes and complications.

Results

With the advancements in techniques and equipment, there has been improvement in patients' outcomes following surgical management of these fractures and a large proportion of these patients are able to achieve pre-injury level of function. The contoured locking plates have enabled successful fixation of many of these fractures that were previously considered unfixable. For those not amenable to surgical fixation, total elbow arthroplasty and elbow hemiarthroplasty are considered as good alternatives.

Conclusion

Since the days where the 'bag of bones' technique was the preferred method of treating these complex injuries, techniques and outcomes have advanced greatly. However, they still present a significant technical challenge and need meticulous technique and experience to achieve optimal results.

Operative Distal Humerus Fractures in Older Patients: Predictors for Early Complications Based on a National Database

BACKGROUND

Open reduction internal fixation (ORIF) and total elbow arthroplasty (TEA) have both been utilized in the treatment of distal humerus fractures in patients over 65 years of age. Comparisons of early complications between these procedures have not been well described.

QUESTIONS/PURPOSES

The purpose of this study is to evaluate complication rates in the treatment of distal humerus fractures in elderly patients and to utilize prediction models to identify risk factors associated with postoperative complications. Additionally, to compare ORIF and TEA treatment.

METHODS

A retrospective case series was performed by querying the National Surgical Quality Improvement Program for both ORIF and TEA performed for distal humerus fractures in patients over the age of 65 years between 2005 and 2014. We examined both preoperative risk factors and complications within 30 days in these three groups.

RESULTS

The sample included 216 ORIF and 65 TEA cases. No outcomes examined differed significantly between treatment groups. The most common outcome for both groups was bleeding requiring transfusion (8%). The observed effect size for the association between procedure and the composite morbidity outcome indicated little to no association (phi = 0.004). Furthermore, no presurgery variables were found to be significantly associated with procedure type. The only predictor with a significant independent association with the composite outcome, regardless of procedure type, was ASA class 3/4.

CONCLUSION

Clinical complications were low no matter the type of treatment. Low preoperative hematocrit was a risk factor in both ORIF and TEA.

Distal Humerus Fractures in the Elderly Population

Distal humerus fractures present complex challenges in the elderly patient. These fractures often occur in patients who are living independently but have poor bone quality and low physiologic reserve, thus complicating management decisions and treatment. The goal is a painless, functional, stable elbow that allows completion of the activities of daily living. Nonsurgical management is reserved for those who cannot tolerate surgery. Open reduction and internal fixation is the preferred choice in fractures amenable to rigid fixation and early motion. Although total elbow arthroplasty provides improved early function and similar overall outcomes in appropriately selected patients, it has the potential to cause devastating complications. With modern technology and treatment principles, as well as early definitive treatment by an experienced specialist, predictable return to function can be expected.

The challenging surgical treatment of closed distal humerus fractures in elderly and octogenarian patients: radiographic and functional outcomes with a minimum follow-up of 24 months

INTRODUCTION

The main purpose of this retrospective, non-randomized, case series study was to evaluate the clinical and radiographic outcomes of distal humerus fractures (DHFs) in a consecutive series of elderly patients operatively treated by two surgeons, and second, to identify proper indications for two elderly age ranges and two fracture pattern groups.

MATERIALS AND METHODS

From January 2009 to June 2014, 51 patients (pts) underwent open reduction and internal fixation (ORIF) using the locking compression plate (LCP) distal humerus plate (DHP) system at our institution. Medical records and radiographs were retrospectively assessed. Patients were divided into 3 groups according to gender, age (pts <85 years, pts ≥85 years) and AO classification (13-B1-B2-C1-C2 or 13-C3). All subjects completed MEPS, Quick-DASH and SF-36 PCS/MCS scores at final follow-up, and statistical analysis was performed.

RESULTS

36 patients (20 women, 16 men), mean age 80.3 years, with AO type 13-B and 13-C DHFs were included with a mean follow-up of 56 months (range 24-92). The most common mechanism of trauma was a fall from ground level (55.6%). The mean MEPS was 78.9 points, Quick-DASH 28.4, SF-36 PCS 48.3 and MCS 48.9. There was statistically significant evidence that having a 13-C3 fracture leads to worse results in MEPS, Quick-DASH and SF-36. The female gender correlates with worse results in SF-36. The patients ≥85 years had a worse prognosis according to Quick-DASH and SF-36, while the AO 13-C3 pattern obtained the worst ROM outcomes versus AO 13 B1-B2-C1-C2 (normal ROM 0°-140°): mean ROM 24°-114° vs 10°-130°, mean flexion deficit 26° vs 10°, mean extension deficit 24° vs 10°, respectively). Complications were presents in 36.1% of patients, overall belonging to the AO type 13-C fracture pattern and to the group ≥85 years.

CONCLUSION

These study data seem to confirm our hypothesis that plate fixation for DHFs guarantees adequate fracture osteosynthesis and satisfactory functional outcomes at medium to long-term follow-up, not only in elderly patients, but also in octogenarian osteoporotic patients (≥85 years) with 13-C1 and 13-C2 fracture patterns, while an alternative solution should be considered for type C3 fractures, even in a primary trauma setting.

Primary total elbow arthroplasty for distal humeral fractures in elderly patients: a nationwide analysis

BACKGROUND

Displaced intra-articular distal humeral fractures are a challenging injury in elderly patients. High rates of complications have led to the increasing use of total elbow arthroplasty (TEA) for primary treatment. This study presents US nationwide trends in primary TEA for distal humeral fractures in elderly patients (65 years and older) from 2002 to 2012. We hypothesized that there was an increase in the rate of TEA utilization.

METHODS

Data were obtained from the Nationwide Inpatient Sample for the years 2002 to 2012. All inpatients 65 years and older with distal humeral fractures were identified and were divided into 2 subgroups based on the operation they received: (1) TEA and (2) open reduction-internal fixation (ORIF).

RESULTS

Between 2002 and 2012, the annual frequency of TEA for elderly patients with distal humeral fractures increased 2.6-fold, with 147 patients in 2002 and 385 in 2012. In 2012, TEA was performed in 13% of operatively treated distal humeral fractures compared with only 5.1% in 2002 (P < .05). Mean hospital charges increased significantly for both the ORIF and TEA groups from 2002 to 2012. The average hospital charge for TEA in 2012 was $85,365, which was $16,358 higher than that for patients who underwent ORIF (P < .05).

CONCLUSION

The national rate of primary TEA for the acute management of distal humeral fractures in elderly patients has increased significantly over the past 10 years. Given the significant complexity, long-term restrictions, and risks associated with TEA, this increasing trend should be analyzed closely.

The clinical outcome and activity levels of patients under 55 years treated with distal humeral hemiarthroplasty for distal humeral fractures: minimum 2-year follow-up

BACKGROUND

The aim of the present study was to describe the clinical outcomes and activity levels of young patients after distal humeral hemiarthroplasty (DHH).

METHODS

Six patients under 55 years (mean 44 years; range 29 years to 52 years) treated with DHH at a mean postoperative time of 81 months (range 24 months to 133 months) were studied retrospectively. Two other patients had been revised for aseptic loosening and were excluded.

RESULTS

The mean Mayo Elbow Score (MEPS) (88), Subjective Elbow Value (SEV) (89), Quick Disabilities of the Arm, Shoulder and Hand (QuickDASH) (12) and American Shoulder and Elbow Surgeons (ASES) elbow pain (6), function (23) and satisfaction scores (9) were satisfactory. The mean University of California, Los Angeles (UCLA) activity score was 7.2.

CONCLUSIONS

Although only rarely indicated, DHH has satisfactory clinical outcomes in young patients and allows a higher level of function than is generally advised after total elbow arthroplasty.

Total elbow arthroplasty for the treatment of distal humeral fractures

OBJECTIVE

To report the clinical-functional outcomes of the treatment of humeral distal fractures with a total elbow prosthesis.

MATERIAL AND METHODS

This retrospective study was performed in two surgical centres. A total of 23patients were included, with a mean age of 79years, and of which 21 were women. The inclusion criteria were: patients with humeral distal fractures, operated on using a Coonrad-Morrey prosthesis, and with a follow-up of more than one year. According to AO classification, 15fractures were type C3, 7 C2 and 1 A2. All patients were operated on without de-insertion of the extensor mechanism. The mean follow-up was 40 months.

RESULTS

Flexor-extension was 123-17°, with a total mobility arc of 106° (80% of the contralateral side). Pain, according to a visual analogue scale was 1. The Mayo Elbow Performance Index (MEPI) was 83 points. Excellent results were obtained in 8 patients, good in 13, medium in 1, and poor in 1. The mean DASH (disability) score was 24 points.

CONCLUSION

Treatment of humeral distal fractures with total elbow arthroplasty could be a good treatment option, but indications must be limited to patients with complex fractures, poor bone quality, with osteoporosis and low functional demands. In younger patients, the use is limited to serious cases where there is no other treatment option.

LEVEL OF EVIDENCE

Level of Evidence IV.

Total Elbow Arthroplasty for Distal Humerus Fractures

Total elbow arthroplasty is a good treatment alternative for selected patients with distal humerus fractures. Its attractiveness is related to several factors, including the possibility of performing the procedure; leaving the extensor mechanism intact; faster, easier rehabilitation compared with internal fixation; and overall good outcomes reported in terms of both pain relief and function. Implant failure leading to revision surgery does happen, and patients must comply with certain limitations to extend the longevity of their implant. Development of high-performance implants may allow expanding the indications of elbow arthroplasty for fractures.

Total elbow joint replacement for fractures in the elderly--Functional and radiological outcomes

AIM

The purpose of this paper was to review the literature on the treatment of intra-articular fractures of the distal humerus in the elderly in order to evaluate the place for total elbow replacement (TER) in the light of our experience over the past 15 years.

METHODS

A review of the records of 11 consecutive patients over the age of 60 years who underwent primary TER for comminuted fractures of the distal humerus between 1997 and 2011 were reviewed and the surviving patients were interviewed. The Scopus database was used to perform a pragmatic review of the literature published between the mid-1990s and the present-day.

RESULTS

At the time of the most recent follow-up 3.5 years following surgery (range: 2-6 years) 7 patients assessed with the Mayo elbow performance index were classified as excellent, 4 were classified as good. There were no complications requiring further procedures encountered. Five surviving patients remain satisfied with the function of their TER. The number of papers recommending TER for treatment of these fractures continues to increase with time.

CONCLUSIONS

TER is now the treatment of choice for unreconstructable fractures of the distal humerus in the elderly. This option should therefore be available at the time of surgery for all distal humeral fractures in this patient population. A surgical approach other than olecranon osteotomy, which would preclude TER is therefore required.

Is primary total elbow arthroplasty safe for the treatment of open intra-articular distal humerus fractures?

OBJECTIVES

Total elbow arthroplasty (TEA) is a viable treatment for elderly patients with distal humerus fracture who frequently present with low-grade open fractures. This purpose of this study was to evaluate the results of a protocol of serial irrigations and debridements (I&Ds) followed by primary TEA for the treatment of open intra-articular distal humerus fractures.

METHODS

Seven patients (mean 74 years; range 56-86 years) with open (two Grade I and five Grade 2) distal humerus fractures (OTA 13C) who were treated between 2001 and 2007 with a standard staged protocol that included TEA were studied. Baseline Disabilities of the Arm, Shoulder and Hand (DASH) scores were obtained during the initial hospitalization, and the 6- and 12-month follow-up visits. Elbow range of motion (ROM) measurements were obtained at each follow-up visit.

RESULTS

Follow-up averaged 43 (range 4-138) months. There were no wound complications and no deep infections. Complications included one case of heterotopic ossification with joint contracture, one olecranon fracture unrelated to the TEA, and two loose humeral stems. The average final ROM was from 21° (range 5-30°) to 113° flexion (range 90-130°). DASH scores averaged 25 at pre-injury baseline and 48 at the most recent follow-up visits.

CONCLUSIONS

TEA has become a mainstream option for the treatment of distal humerus fractures which are on occasion open. There is hesitation in using arthroplasty in an open fracture setting due to a potential increased infection risk. The absence of any infectious complications and satisfactory functional outcomes observed in the current series indicates that TEA is a viable treatment modality for complex open fractures of the distal humerus.

The role of total elbow arthroplasty in traumatology

Fractures of the distal humerus account for 5% of osteoporotic fractures in subjects older than 60 years. A history of osteoporosis, co-morbidities, and joint comminution make their management difficult. The therapeutic options are limited to functional treatments, osteosynthesis, or either partial or total arthroplasty. Functional treatment of distal humerus fractures in the elderly subject provide inconsistent results, often with persistence of pain with a stiff or unstable elbow. Osteosynthesis remains the reference treatment for these fractures, following the principle of stable and rigid osteosynthesis allowing early mobilization. However, joint comminution and a history of osteoporosis occasionally make it impossible to meet this objective, with a considerable rate of complications and surgical revisions. Total elbow arthroplasty remains an alternative to osteosynthesis with very satisfactory immediate results restoring a painless, stable, and functional elbow. These results seem reproducible and sustainable over time. The complication rate is not uncommon with an approximately 10% surgical revision rate. Elbow hemiarthroplasty remains to be validated in this indication.

LEVEL OF EVIDENCE

V.

Discovery elbow system: 2- to 5-year results in distal humerus fractures and posttraumatic conditions: a prospective study on 24 patients

PURPOSE

To prospectively evaluate preliminary results of the Discovery Elbow System (DES) used for acute distal humerus fractures and posttraumatic conditions.

METHODS

We analyzed 24 patients (9 men and 15 women), with a mean age of 69 years (range, 45-89 y). Ten had comminuted distal humerus fractures (group I), and 14 had severe post-traumatic arthritis, chronic instability, or nonunion (group II). Clinical and radiographic evaluations were performed. The preoperative (group II) and postoperative (both groups) evaluations were assessed with the Mayo Elbow Performance Score and Mayo Elbow Performance Index, the Quick Disabilities of the Arm, Shoulder, and Hand score, and the modified American Shoulder and Elbow Surgeons score. Patient satisfaction was evaluated on a 4-point scale.

RESULTS

Mean follow-up was 41 months (range, 29-63 mo). At the last evaluation, average flexion, extension, pronation, and supination were 136°, 17°, 80°, and 83°, respectively. The average Mayo Elbow Performance Score, Quick Disabilities of the Arm, Shoulder, and Hand score, and the modified American Shoulder and Elbow Surgeons score were 96, 20, and 84, respectively, and without significant intergroup differences. According to the Mayo Elbow Performance Index, there were 20 excellent, 3 good, and 1 fair result. Twenty patients were very satisfied or satisfied with the outcome. A significant increase in the functional scores was observed in group II compared with preoperative results. Radiological evaluation showed 1 patient with progressive radiolucency and 1 with a nonprogressive radiolucency at the final follow-up. No mechanical failures were observed. Two transient ulnar neuropathies, 1 wound infection, and 1 epicondyle fracture were observed.

CONCLUSIONS

The DES yielded promising 2- to 5-year results in the treatment of acute fractures and posttraumatic conditions regarding pain relief, functional improvement, and patient satisfaction, achieving excellent results in most cases. The DES may represent an effective linked-implant option for total elbow replacement in such patients. However, long-term studies are needed.

TYPE OF STUDY/LEVEL OF EVIDENCE

Therapeutic IV.

Primary total elbow arthroplasty in complex fractures of the distal humerus

AIM: To evaluate short- to medium term outcome of total elbow arthroplasty (TEA) in complex fractures of the distal humerus.

METHODS: A consecutive series of 24 complex distal humerus fractures operated with TEA in the period 2006-2012 was evaluated with the Mayo Elbow Performance score (MEPS), plain radiographs, complications and overall satisfaction. The indications for surgery were 1: AO type B3 or C3 or Sheffield type 3 fracture and age above 65 or 2: fracture and severe rheumatoid arthritis. Mean follow-up time was 21 mo.

RESULTS: Twenty patients were followed up. Four patients, of which 3 had died, were lost to follow up. According to the AO classification there were 17 C3, 1 B2 and 2 A2 fractures. Mean follow-up was 21 months (range 4-54). Mean MEPS was 94 (range 65-100). Mean flexion was 114 degrees (range 80-140). According to MEPS there were 15 excellent, 4 good and 1 fair result. Patient satisfaction: 8 excellent, 10 good, 2 fair and 1 poor. There were two revisions due to infection treated successfully with revision and three months of antibiotics. In two patients the locking split had loosened. One was referred to re-insertion and one chose yearly controls. Two patients had persistent dysaesthesia of their 5th finger, but were able to discriminate between sharp and blunt.

CONCLUSION: Our study suggests that TEA in complex fractures of the distal humerus in elderly patients can result in acceptable short- to medium term outcome.

Results of parallel plate fixation of comminuted intra-articular distal humeral fractures

BACKGROUND

This study investigated the results of parallel plate fixation of comminuted distal humeral fractures in a consecutive series of patients.

METHODS

Parallel plate fixation was used in 47 patients (30 women), mean age 60 years (range 18-98 years), with Arbeitsgemeinschaft für Osteosynthesefragen (AO) type C distal humeral fractures during 2007 to 2011. Medical records and radiographs were retrospectively assessed. Thirty-five patients completed Disabilities of Arm, Shoulder and Hand (DASH) outcome measure and the RAND Medical Outcomes Study 36-Item Short Form (SF-36) Health Survey. Twenty-seven patients underwent clinical examination, Mayo Elbow Performance Score (MEPS) rating, and radiography after 3.9 years (range, 1.6-7.9 years) of follow-up.

RESULTS

The mean flexion arc was lower on the affected side vs the unaffected elbow (123° vs 140°, P = .03). The mean MEPS was 88; the result was excellent in 14, good in 8, fair in 3, and poor in 2 patients. DASH results indicated slight impairment of upper extremity function compared with the reference value (26 vs 10, P = .001). RAND SF-36 scores indicated normal quality of life compared with reference values from the Finnish population. Forty-four fractures united uneventfully. One case each of nonunion and malunion occurred. One olecranon osteotomy failed to unite. There were 3 cases of infection. Prominent hardware was a common late problem, and plates often required removal. The complication rate was 7 of 47 (15%); 4 of these patients (9%) required reoperation. The hardware removal rate was 13 of 47 (28%).

CONCLUSION

Parallel plate fixation is an effective method to treat comminuted distal humeral fractures. Good elbow function can be restored in most cases with minor impairments that do not worsen quality of life.

Reconstruction of traumatic losses of substance at the elbow

Traumatic lesions at the elbow involving great loss of substance are uncommon, but represent a significant problem when such cases are referred to a trauma department. Most of these injuries may cause severe final functional impairment, thereby jeopardising future activities, particularly in cases where treatment was delayed or inappropriate. The timing and method of treatment are critical. The trauma may involve soft tissues only, or bone and joint, or several structures at the same time, which results in combined complex tissue defects. Each type of tissue loss should be managed by choosing the most suitable technique from the armamentarium of reconstructive surgery, taking into account different priorities and the optimum timing (immediate or delayed, one- or two-stages). The authors describe a spectrum of indications and techniques that can be useful tools in managing these injuries.

Radial head, radiocapitellar and total elbow arthroplasties: a review of recent literature

The outcome of prosthetic elbow surgery is continually evolving. We thoroughly reviewed the literature on this issue to analyse the indications, outcomes and complications of the numerous types of implants currently in use. Radial head replacement is recommended in comminuted fractures of the radial head and in post-traumatic conditions. Medium- and long-term results prove to be satisfactory in the majority of cases, with no evidence to indicate that some prostheses (monopolar vs. bipolar; cemented vs. press-fit) are more effective than others; nonetheless, the bipolar-cemented implant was found to be associated with a lower revision rate than other prostheses. Unicompartmental arthroplasty has recently been used for the treatment of osteoarthritis and rheumatoid arthritis when the lateral compartment is prevalently involved; the results reported to date have been encouraging, although further studies are warranted to confirm the validity of these implants. Total elbow arthroplasty is performed in a range of conditions, including distal humerus fractures in the elderly and elbow arthritis. In the former condition, linked elbow replacement yields excellent results with few complications and a low revision rate. In elbow arthritis, total elbow arthroplasty is indicated when patients suffer from disabling pain, stiffness and/or instability that prevent them from performing daily activities. Unlinked elbow arthroplasty, which is used above all in rheumatoid arthritis, also yields satisfactory results, although the risk of instability persists. The use of linked elbow arthroplasty, which yields similar results but lower revision rates, has consequently increased. Lastly, the results yielded by linked elbow prosthesis in post-traumatic conditions are good, although not quite as good as those obtained in rheumatoid arthritis. Early mechanical failure may occur in younger and more active patients after elbow arthroplasty. However, the careful selection of patients who are prepared to accept functional limitations imposed by elbow implants will enable indications for elbow arthroplasty to be extended to young subjects, particularly when no other therapeutic options are available.

Distal humerus fractures in patients over 65: complications

INTRODUCTION

Fractures of the distal humerus in patients over the age of 65 remain a therapeutic challenge. Treatment options include conservative treatment, internal fixation or total elbow arthroplasty. The complications of these different treatment options were evaluated in a multicentre study.

MATERIALS AND METHODS

Four hundred and ninety-seven medical records were evaluated. A retrospective study was performed in 410 cases: 34 received conservative treatment, 289 internal fixation and 87 underwent total elbow arthroplasty. A prospective study was performed in 87 cases: 22 received conservative treatment, 53 internal fixation, and 12 underwent total elbow arthroplasty. Patients were evaluated after at least 6 months follow-up.

RESULTS

The rate of complications was 30% in the retrospective study and 29% in the prospective study. The rate of complications in the conservative treatment group was 60%, and the main complication was essentially malunion. The rate of complications was 44% in the internal fixation group and included neuropathies, mechanical failure or wound dehiscence. Although complications only developed in 23% of total elbow arthroplasties, they were often more severe than those following other treatments.

DISCUSSION

Complications develop in one out of three patients over 65 with distal humerus fractures. Three main types of complications were identified. Neuropathies especially of the ulnar nerve, especially during arthroplasty, must always be identified, the nerve requiring isolation and transposition. Bone complications, due principally to mechanical failure, were found following internal fixation. Despite technical progress, care must be taken not to favor excessive utilization of this treatment option in complex fractures on fragile bone. Although there were relatively fewer complications with total elbow arthroplasty they were more difficult to treat. Ossifications were frequent whatever the surgical option and can jeopardize the functional outcome.

Unreconstructable acute distal humeral fractures and their sequelae treated with distal humeral hemiarthroplasty: a two-year to eleven-year follow-up

BACKGROUND

The aim of this study was to describe for the first time the medium to long-term outcome after distal humeral hemiarthroplasty (DHH).

METHODS

Twenty-six patients (mean age, 62; range, 29-92 years) treated with DHH for intra-articular distal humeral fractures and its sequelae were studied retrospectively.

RESULTS

Four patients had died and 4 had been revised to total elbow arthroplasty: 2 for periprosthetic fractures and 2 for primary component loosening (all in prostheses without an anterior flange). Six other complications had occurred: ulnar neuritis, 4; stiffness, 1; and wound necrosis, 1. Seventeen patients underwent assessment at a mean of 80 months after surgery. The mean values of the American Shoulder and Elbow Surgeons (ASES) elbow score (pain, 9.93; function, 25; satisfaction, 9.06); Mayo Elbow Performance Score (90); Quick Disabilities of Arm, Shoulder and Hand (19), and EuroQol EQ5D (Index, 0.84; Visual Analog Scale, 80) outcome measures demonstrated good function and satisfaction with little pain. The mean flexion extension arc was 116°. There was no evidence of instability. Radiologic evidence of ulnar wear was seen in 13 patients and may be related to prosthetic design to some extent. Worse wear was associated with a higher ASES pain score, lower satisfaction score, and lower EuroQoL Visual Analog Scale of quality of life. Degree of wear correlates with time after surgery but not with age at the time of surgery.

CONCLUSION

DHH offers a treatment option for unreconstructable distal humeral fractures and is associated with a good long-term outcome.

LEVEL OF EVIDENCE

Level IV, case series, treatment study.

Total elbow arthroplasty for acute distal humeral fractures in patients over 65 years old - results of a multicenter study in 87 patients

INTRODUCTION

Fractures of the distal humerus represent 5% of osteoporosis fragility fractures in subjects over the age of 60. Osteoporosis, comorbidities and intra-articular comminution make management of this entity difficult.

HYPOTHESIS

The hypothesis was that total elbow arthroplasty could be a reliable treatment option in subjects over the age of 65 presenting with a fracture of the distal humerus.

MATERIALS AND METHODS

Eight-seven patients (80 women and 7 men) mean age 79 years old (65-93) underwent total elbow arthroplasty for the treatment of an AO type A fracture in 9 cases, type B in 8 and type C in 70.

RESULTS

After a mean follow-up of 37.5 months (6-106) the Mayo Elbow Performance Score MEPS was 86±14, the quick-DASH score was 24±19 and the Katz score was 5±1.5 points. The MEPS was better in patients with a high preoperative Katz score and a history of inflammatory arthritis who were living at home. Fifty-five patients (63%) presented with a pain-free elbow, and 20 (24%) with slight pain. The flexion-extension range of motion was 97±22° and 48% presented with a flexion-extension arc of at least 100°. Function was normal in 69 patients. Complications were identified in 20 cases (23%) and revision surgery was necessary in 8 (9%). Two arthroplasties had to be changed, one for a fracture of the humeral stem component and the other for loosening. Only one infection occurred in this series.

CONCLUSION

Total elbow arthroplasties provide fractured patients with immediate satisfactory results and a stable, painless and functional elbow. These results seem to be reliable and durable. The rate of complications is low with revision surgery in approximately 10%.

LEVEL OF EVIDENCE

Level IV.

Experience with the Coonrad-Morrey total elbow arthroplasty: 78 consecutive total elbow arthroplasties reviewed with an average 5 years of follow-up

BACKGROUND

The Coonrad-Morrey total elbow arthroplasty is a linked implant. This study investigated the hypotheses that reliable results can be obtained in rheumatoid patients and in traumatic conditions and that the survival rate is similar to or better than what has been published for nonlinked implants.

METHODS

Surgery was performed on 70 consecutive patients (78 elbows) for an inflammatory arthritis (45 elbows) or a traumatic condition (33 elbows: 18 acute fractures of the distal humerus, 10 nonunions, and 5 post-traumatic arthritis).

RESULTS

At an average of 5 years of follow-up (2 to 11 years), the mean Mayo Elbow Performance Score for the group that had inflammatory arthritis (89 ± 13 points) was significantly higher than that for the group with a traumatic condition (80 ± 17 points). The QuickDASH score was not significantly different according to the etiology. Radiolucencies were observed in 17 cases around the humeral component and in 14 cases around the ulnar component. Bushing wear was observed in 14 cases. There were 27 complications, and 9 of them went to a revision procedure. The survival rate was 97.7% at 5 years and 91.0% at 10 years if we consider revision for aseptic loosening as an endpoint.

CONCLUSIONS

The Coonrad-Morrey total elbow arthroplasty allows treatment of a large spectrum of causes with satisfactory results. Better results have been obtained for rheumatoid patients than for patients with trauma. The rate of complication remains high even if the rate of implant revision stays low. However, the increased incidence of lucent lines around the ulnar component with follow-up and bushing wear are of concern.

[Fracture endoprosthesis of distal humerus fractures]

The treatment of choice for fractures of the distal humerus is double plate osteosynthesis. Due to anatomical preshaped angle stable plates the primary stability and management of soft tissues has been improved. However, osteoporotic comminuted fractures in the elderly are often not amenable to stable osteosynthesis and total elbow arthroplasty has been established as an alternative therapy. Although complication rates have been reduced, complications of total elbow arthroplasty are still much more frequent than in total hip replacement. Furthermore, patients are advised not to exceed a weight bearing of 5 kg. Therefore, the indications for elbow arthroplasty must be evaluated very strictly and should be reserved for comminuted distal humeral fractures in the elderly with poor bone quality that are not amenable to stable osteosynthesis or for simple fractures in cases of preexisting symptomatic osteoarthritis. This article introduces and discusses modern concepts of elbow arthroplasty, such as modular convertible prosthesis systems, hemiarthroplasty and radial head replacement in total elbow arthroplasty.

Total elbow arthroplasty for distal humerus fractures

Total elbow arthroplasty has become increasingly popular for the treatment of distal humerus fractures in elderly patients with poor bone quality, comminution, and/or pre-existent elbow abnormalities. The procedure is performed without violating the extensor mechanism; the fractured fragments are exposed and resected on both sides of the triceps, and the components can be implanted through the same exposure. Early outcomes are satisfactory in most elbows and compare favorably with internal fixation in this same group of elderly patients. Advances in elbow arthroplasty for fractures will likely combine refinement of the indications and development of implants with lower rates of failure.

Treatment of distal humerus fractures with LCP DHP™ locking plates in patients older than 65 years

INTRODUCTION

Fractures of the distal humerus are often complex and therefore challenging to treat. In elderly patients with decreased bone strength due to osteoporosis, strong fixation is crucial to allow resuming early motion that guarantees a good functional outcome as well as minimising mechanical complications. Locked implants meet these requirements. Here, we report outcomes in a uniform series of patients older than 65 years with distal humerus fractures managed with LCP DHP(®) (Synthès) fixation. Our objective was to evaluate the efficacy and limitations of this technique.

HYPOTHESIS

LCP DHP provides strong fixation of osteoporotic bone and leads to good clinical and radiological outcomes.

MATERIALS AND METHODS

We retrospectively studied 46 consecutive patients (2004-2010) with a mean age of 80 years including 15 with extra-articular and 31 with articular distal humerus fractures. At presentation, 11 complications were noted in nine patients (compound fractures and trauma-related nerve injuries). The transolecranon approach was used in 31 patients. Mean duration of immobilisation was 2.7 weeks in 33 patients.

RESULTS

Forty-three patients were re-evaluated after a mean follow-up of 25 months (range, 10-64 months); two patients died and one was lost to follow-up. Flexion was 127° and loss of extension was 23°, producing an average range of motion of 104°. Functional recovery was highly satisfactory with a Mayo Clinic Performance Score of 87 (70-100) and 95% of good and very good results. Postoperative complications consisted of infection (n=3), metaphyseal non-union (n=2), ulnar nerve injury (n=6), transient radial nerve palsy (n=1), and peri-articular ossification (n=4). Compound fracture and worse AO fracture type were associated with worse functional outcomes.

DISCUSSION

Despite the high complication rate, functional recovery was similar to that reported in previous case series, including after arthroplasty. Furthermore, the rate of mechanical complications was lower. Thus, our working hypothesis was confirmed.

LEVEL OF EVIDENCE

Level IV retrospective non-comparative study.

Complex fractures of the distal humerus in the elderly: is primary total elbow arthroplasty a valid treatment alternative? A series of 20 cases

INTRODUCTION

Distal humerus fractures are fairly rare. But as our population ages, these fractures become more complex and the choice of treatment more delicate. Poor bone quality results in many technical problems and the fixation hardware stability remains at risk. The goal of this study was to evaluate the functional recovery and morbidity of complex distal humerus fractures in elderly patients when treated with elbow prosthesis.

HYPOTHESIS

Good functional recovery can be achieved with a total joint replacement.

PATIENTS AND METHODS

This series consisted of 20 patients (18 women and two men) having an average age of 80years (range 65-93, median 80). Based on the AO classification, there were two Type A2 fractures, two Type B fractures, 15 Type C fractures and one fracture that could not be classified because of previous rheumatoid disease history at this elbow. Two fractures were open. In two cases, the olecranon was also fractured. Treatment consisted of the implantation of a Coonrad-Morrey, hinge-type total elbow prosthesis (Zimmer(®), Warsaw, IN, USA). The Mayo Clinic surgical approach was used 17 times and the transolecranon approach was used three times. Primary arthroplasty was performed in 19 cases and the surgery was performed after six weeks of conservative treatment (diagnostic delay) in one case. Unrestricted motion was allowed after surgery, but a maximum of 0.5kg could be carried during the first 3months; this was subsequently increased to 2.5kg.

RESULTS

Fifteen of the 20 patients were available for reevaluation with an average follow-up of 3.6years (range 1.7-5.5, median 3.4). Four patients had died and one was lost to follow-up. The average range of motion was 97° (range 60-130°), comprising an average flexion of 130° (range 110-140°) and average loss of extension of 33° (range 0-80°). Pronation and supination were normal. The average Mayo Elbow Performance Score (MEPS) was 83 (range 60-100, median 80). X-rays revealed seven cases of radiolucent lines, with two being progressive. There was no visible wear of the polyethylene bushings at the hinge. Six patients had moderate periarticular heterotopic ossification. The two cases of olecranon osteotomy and one case of olecranon fracture had healed. There were no surgical site infections but two cases of ulnar compression, one of which required neurolysis. There was one case of humeral component loosening after 6years, but the implant was not changed.

DISCUSSION

The clinical range of motion results were comparable to published data. The functional scores were slightly lower, mainly because of the pain factor. The initial results were encouraging and consistent with published data as long as the indications were well-chosen. Based on this retrospective study, total elbow arthroplasty can be a valid alternative in the surgeon's treatment armamentarium for complex distal humerus fractures in elderly patients who have moderate functional demands. Our results support our hypothesis, since we found good functional recovery without associated morbidity.

LEVEL OF EVIDENCE

Level IV retrospective study without comparator.

Comparison of short- to medium-term results of Coonrad-Morrey elbow replacement in patients with rheumatoid arthritis versus patients after elbow injuries

BACKGROUND

The aim of this study was to assess the utility of the Coonrad-Morrey elbow prosthesis in patients with severe elbow dysfunction secondary to rheumatoid arthritis (RA) or post-traumatic elbow dysfunction.

MATERIAL/METHODS

The study involved 35 patients followed up for a mean of 36 months. The patients were divided into those with RA (Group I) and those with post-traumatic elbow dysfunction (Group II). Treatment outcomes were evaluated according to the Mayo Elbow Performance Score (MEPS) and the Disabilities of the Arm, Shoulder and Hand Score (Quick DASH).

RESULTS

According to the MEPS, there were 20 (57.15%) excellent, 12 (34.3%) good, 1 (2.85%) fair, and 2 (5.7%) poor outcomes. The mean post-operative Quick-DASH score for the entire study group was 37.73 points. In subgroup analysis, the MEPS-based evaluation revealed: 14 (70%) excellent, 5 (25%) good, and 1 (5%) satisfactory outcome in Group I, versus 6 (40%) excellent, 7 (46.7%) good, and 2 (13.3%) poor outcomes in Group II. The mean Quick Dash scores were 78.64 points in Group I and 76.36 points in Group II. The final MEPS scores in Group I (p=0.000018) and Group II (p=0.00065) were most markedly influenced by reduction in elbow pain and improvement in the ability to perform activities of daily living (ADL): p=0.000018 in Group I and p=0.000713 in Group II.

CONCLUSIONS

The treatment outcomes confirm the utility of arthroplasty for severe elbow dysfunctions; they were most strongly influenced by pain reduction and improved ability to perform activities of daily living.

Coronal shear fractures of the distal humerus

Management of coronal shear fractures of the distal humerus has evolved considerably over the past 3 decades, with an increased appreciation of the complexity of these fractures, improvements in internal fixation techniques, and the use of more extensile exposures. Nearly all of these fractures are displaced, given the paucity of soft tissue attachments and correspondingly, nonsurgical management is fraught with complications including chronic pain, mechanical symptoms, and instability and is not recommended. Good to excellent outcomes can be achieved in the majority of patients with open reduction internal fixation, particularly when the fracture is limited to the radiocapitellar joint. Outcomes are worst for those with considerable medial extension or comminution. Computed tomography is highly recommended to guide surgical planning. The presence of posterior comminution or extension to the medial column might require more extensile exposures and supplemental fixation for adequate stability. Arthroscopic reduction and fixation techniques have been described for the simple fracture. Those not amenable to fixation might do better with total elbow arthroplasty in a select population. Long-term data demonstrate the durability of these elbows following open reduction internal fixation. Complications other than stiffness are rare. Radiographic avascular necrosis does not appear to affect outcome. Radiographic mild to moderate arthritis was observed in half of patients at 17-year follow-up.

The Kudo humeral component as primary hemiarthroplasty in distal humeral fractures

BACKGROUND

Treatment of intra-articular fractures of the distal humerus in the elderly is challenging. In patients with very distal fractures and severe comminution, primary arthroplasty has been advocated. Recently, a few reports have described promising results of hemiarthroplasty. This study describes the medium-term results of using the Kudo humeral implant (Biomet Ltd, Bridgend, U.K.) as replacement of the distal humerus.

MATERIAL AND METHODS

Eight women (mean age, 79 years) were treated. Follow-up was conducted at a mean of 4 years after the procedure and consisted of the Mayo Elbow Performance Score (MEPS), radiographic images, and range of motion (ROM).

RESULTS

All patients had a good or excellent outcome according to the MEPS. Mean ROM was 31° to 126°. Radiographic signs of attrition of the ulna were observed in 3 patients but did not correlate with the functional outcome. A periprosthetic fracture occurred in 1 patient 3 years after the index operation, and ROM was unsatisfactory in 1 patient. No other complications were observed.

CONCLUSION

The use of the Kudo humeral implant as a hemiarthroplasty resulted in a reasonable functional outcome in the medium-term, but the radiographic signs of attrition suggest that the implant is not recommended as a hemiprosthesis.

Mid-term results of complex distal humeral fractures

The aim of this study was to assess outcomes following open reduction and internal fixation in complex fractures of the distal humerus. Between 2000 and 2006, 34 patients were operated for complex fractures of the distal humerus. Bone fixation was obtained with a reverse Y-shaped reconstruction plate in 13 cases and with double plating in 21 cases. At final follow-up, all the patients were assessed with the Mayo Elbow Performance Score. Satisfactory results were observed in 71% of the cases despite a high rate of complications. Age over 65 years is correlated with increased risk for an inferior postoperative result. Complex distal humeral fractures are difficult to treat and are associated with a high incidence of complications. It is therefore mandatory to obtain good anatomical reduction and a stable fixation of lateral and medial columns of the distal humerus. The results observed in older patients suggest that an alternative treatment for these patients may be joint replacement.

Linked total elbow arthroplasty

This article provides an overview of the current state of linked total elbow arthroplasty. Discussed are the general indications for using a linked implant and currently available implants. Disease-specific indications, contraindications, surgical technique, and rehabilitation are discussed. The overall results and disease-specific results, as well as complications after a linked elbow arthroplasty, are reviewed.

Total elbow arthroplasty

Total elbow arthroplasty has continued to evolve over time. Elbow implants may be linked or unlinked. Unlinked implants are attractive for patients with relatively well preserved bone stock and ligaments, but many favor linked implants, since they prevent instability and allow replacement for a wider spectrum of indications. Inflammatory arthropathies such as rheumatoid arthritis represent the classic indication for elbow arthroplasty. Indications have been expanded to include posttraumatic osteoarthritis, acute distal humerus fractures, distal humerus nonunions and reconstruction after tumor resection. Elbow arthroplasty is very successful in terms of pain relief, motion and function. However, its complication rate remains higher than arthroplasty of other joints. The overall success rate is best for patients with inflammatory arthritis and elderly patients with acute distal humerus fractures, worse for patients with posttraumatic osteoarthritis. The most common complications of elbow arthroplasty include infection, loosening, wear, triceps weakness and ulnar neuropathy. When revision surgery becomes necessary, bone augmentation techniques provide a reasonable outcome.

Failure patterns after linked semiconstrained total elbow arthroplasty for posttraumatic arthritis

BACKGROUND

Total elbow arthroplasty for the treatment of posttraumatic arthritis is associated with a relatively high failure rate. An understanding of these failures can lead to improved implant design and surgical technique.

METHODS

Eighty-four consecutive patients underwent eighty-five semiconstrained total elbow arthroplasties for the treatment of posttraumatic arthritis. Sixty-nine elbows with a retained primary prosthesis were followed for an average of nine years. Clinical results were graded with use of the Mayo Elbow Performance Score. Radiographs were assessed for mechanical failure, and all complications were recorded.

RESULTS

Sixteen primary arthroplasties (19%) failed. Causes of failure included isolated bushing wear (seven), infection (four), component fracture (three), and component loosening (two). The most common cause of early failure (failure after less than five years) was infection, whereas intermediate-term failure (failure after five to ten years) typically was due to bushing wear. Late failure (failure after more than ten years) was uncommon and involved component loosening or fracture. Seventy-five percent of the failures were in patients who were less than sixty years old at the time of surgery (p = 0.03). Progressive radiolucent lines were noted around four implants, three of which had clinically important loosening. Total elbow arthroplasty was associated with significant improvements in terms of pain, motion, and the Mayo Elbow Performance Scores (p < or = 0.002). Sixty-eight percent of the patients achieved a good or excellent clinical result, and 74% were subjectively satisfied. Kaplan-Meier analysis demonstrated a fifteen-year survival rate of 70% with revision or resection for any reason as the end point.

CONCLUSIONS

Semiconstrained total elbow arthroplasty in patients with posttraumatic arthritis places high demands on the implant and is associated with a relatively high failure rate. Seventy-five percent of failures occur in patients less than sixty years of age, and infection continues to represent a frequent mode of early failure. Bushing wear and component loosening or fracture are seen more commonly in the intermediate and late term, whereas aseptic loosening remains relatively uncommon.

Total elbow arthroplasty for distal humeral fractures: indications, surgical approach, technical tips, and outcome

BACKGROUND

Twenty-six consecutive total elbow arthroplasties were performed for comminuted distal humeral fractures between 1995 and 2002. At review, 3 patients had died from unrelated causes, 2 had been lost to follow-up, and 1 could not be assessed due to dementia. The mean age of the remaining 20 patients was 72 years (range, 62-92). There were 4 men and 16 women.

METHOD

The mean follow-up was 63.2 months (range, 36-108). The mean Mayo Elbow Performance Score was 92 (75-100) with a mean flexion arc of 27 degrees - 125 degrees .

RESULT

One patient had a postoperative superficial infection, which required a course of antibiotic therapy, and 1 patient who had a radial nerve neuropraxia recovered spontaneously after 6 weeks. Radiographs showed 19 implants were well fixed with no evidence of loosening, while 1 patient had a nonprogressive radio-lucent line on the ulna side of the prosthesis. Additionally, 2 patients developed heterotopic ossification without identifying pre-disposing factors.

CONCLUSION

Total elbow arthroplasty for distal humeral fractures in elderly patients without inflammatory arthritis can be expected to five good results at a mean follow-up of 5 years.

Fractures of the distal humerus in elderly patients treated with a ring fixator

The aim of distal humerus fracture treatment is articular surface reduction and stable fixation for early mobilisation and rehabilitation. This is usually performed by open reduction and internal fixation with plates. In the elderly osteoporotic patient this treatment is difficult to achieve due to fixation failure in fragile bone. We present our experience with treatment by closed reduction and external fixation with a non-bridging ring fixator in distal humerus fractures in elderly patients. There were ten females, aged 70-89 (average 78.4). Fracture types (AO/ASIF) included three supracondylar fractures (type A) and seven intercondylar fractures (type C). All patients were treated by closed reduction and external fixation with a non-bridging ring fixator of the distal humerus and immediate postoperative mobilisation of the elbow. External fixation was removed on an average of 72 days (range 62-90). All fractures united. Average time to union was 56 days. Average range of movement at six months was 22° extension lag (range 15°-30°) and 115° flexion (range 110°-120°). Complications included one patient with transient radial palsy and one patient with a superficial decubitus ulcer on the chest wall from the hardware. Minimally invasive treatment by closed reduction and external fixation with a ring fixator is effective for treatment of fractures of the distal humerus in elderly patients with osteoporotic bone. This treatment enables immediate mobilisation of the elbow, and allows return to function. It should be considered an alternative to open reduction and internal fixation or total elbow replacement.