Post-traumatic Elbow Research Articles

Is anterior transposition of the ulnar nerve necessary for post-traumatic elbow stiffness? A retrospective study

ObjectiveTo explore whether anterior transposition of the ulnar nerve is necessary in patients with post-traumatic elbow stiffness.MethodThis was a retrospective study of 177 patients with post-traumatic elbow stiffness treated at Shandong Provincial Hospital from 1 January 2012 to 31 October 2022. Sixty-one patients presented with ulnar nerve symptoms, and 116 patients had no nerve symptoms. Outcomes between patients with and without symptoms were compared using a range of clinical measures, namely range of motion (ROM), ulnar nerve symptoms, and various standardized scoring systems, namely, the Mayo Elbow Performance Score (MEPS), visual analog scale (VAS), improved Broberg and Morrey Score (BMS), Quick disabilities of the Arm, Shoulder, and Hand (DASH) score, Oxford Elbow Score (OES), and Amadio score.ResultsOpen elbow release surgery significantly improved elbow joint function in patients with post-traumatic elbow stiffness, regardless of the presence of ulnar nerve symptoms. Patients with ulnar nerve symptoms showed significant improvement after anterior transposition compared with in situ release. For patients without ulnar nerve symptoms, there was no significant difference in outcomes between the two types of ulnar nerve surgery.ConclusionAnterior transposition of the ulnar nerve is preferable for patients with ulnar nerve symptoms, while the choice between anterior transposition and in situ release can be individualized for patients without symptoms, based on intraoperative findings.

The role of early orthotic intervention in the management of post-traumatic elbow contractures: Study protocol for phase II double-blinded randomised controlled trial

Background Restoration of full elbow extension following trauma is difficult and influenced by the injury profile, surgeon preference, patient and environmental factors. The literature suggests that orthotic interventions are effective in improving contractures when movement plateaus despite normal therapeutic interventions. It is not known if extension orthotic intervention is more superior to standard treatment regardless of when it is commenced. The literature lacks patient-reported considerations to contracture management using elbow orthoses. Methods and analysis This protocol describes a Phase II double blinded randomised controlled feasibility trial (RCT) and mixed methods study, aimed to examine outcome with extension in an orthotic intervention group (OG) versus control (CG). All participants will undergo six weekly therapy sessions, which include a standardised therapeutic program. OG participants will be provided with an additional extension orthosis and the outcome is assessed according to the change in elbow extension motion after 6 weeks of intervention. Data will be collected via questionnaires, logbooks, feedback forms, and semi-structured interviews at baseline and final assessments for descriptive statistical analysis. Under the guidance of a statistician, all quantitative data will be evaluated using the appropriate parametric or non-parametric analyses to evaluate for systematic differences between groups. Preliminary extension gains are used to determine the final sample size required to achieve adequate power for a full-scaled RCT. Interview data on OG participants will be qualitatively analysed using the “five-factorial dimensions of adherence” framework to identify key differences in the influencers between adherent or non-adherent groups. Trial registration number ANZCTR ACTRN12619001402134p.

Influence of Different Stages of Post-Traumatic Elbow Joint Capsule Healing on Pronation Movement

Influence of Different Stages of Post-Traumatic Elbow Joint Capsule Healing on Pronation Movement

Peripheral inflammatory T cell subsets are effective predictive factors in the development of heterotopic ossification after posttraumatic elbow surgery

Heterotopic ossification refers to the pathological formation of extra-skeletal bone. It is a common complication of trauma or surgery that can cause disability and has no definitive cure. Furthermore, the mechanisms underlying chronic inflammation during ossification remain unclear. Therefore, this study aimed to elucidate the systemic immune microenvironment status of heterotopic ossification and identify biomarkers of therapeutic efficacy and recurrence. A combination of stereoarthrolysis with prophylactic radiotherapy and non-steroidal anti-inflammatory drugs was used to treat patients with heterotopic ossification. Changes were observed in peripheral blood lymphocyte levels after treatment. The number of IFNγ+CD8+T cells (3.753 % vs 12.90 %, P < 0.0001) and IL17+CD4+T cells (3.420 % vs 5.560 %, P = 0.0281) were was higher in the peripheral blood of relapsed patients with heterotopic ossification than in that of non-relapsed patients. Similarly, the number of these cells was elevated in patients who developed heterotopic ossification after posttraumatic elbow surgery. Peripheral CD8+T cells derived from patients with this pathology promoted osteogenesis through IFNγ expression in vitro. Our findings demonstrate that IFNγ+CD8+T cells and IL17+CD4+T cells are potential biomarkers of heterotopic ossification after posttraumatic elbow surgery. Furthermore, these cells can be used to predict therapeutic efficacy and relapse after combination therapy.

Management of post-traumatic elbow stiffness in paediatric and adult patients: an update

Posttraumatic elbow stiffness can have a large impact on the ability of a patient to perform activities of daily living. Following a stepwise approach to treatment helps clinicians in this otherwise difficult-to treat condition. Treatment in adults is based on dealing with the involvement of soft tissue contracture, osseous impingement or both. Unlike adults, posttraumatic elbow stiffness in children has distinctly different causes and the thrust of treatment is primarily non-surgical. In skeletally immature children, the skeletal growth potential should be properly assessed and closely followed, observing either progression or natural correction of the deformity. Early active motion aided by physiotherapy is the first step in treatment for both adults and children. Following physiotherapy, brace therapy is a proven cheap and effective therapy for treatment-resistant stiffness. If adequate conservative treatment is unsuccessful, the next step is surgical arthrolysis. This procedure can be performed either open or arthroscopically, with the decision dependent on multiple factors. Early active mobilization after surgery is equally important, with the addition of bracing or continuous passive motion (CPM) in pending contractures following surgery. This paper provides a review of the current literature and a state-of-the-art guidance on the management of posttraumatic elbow stiffness in adult and paediatric patients.

Soft-tissue origin joint contractures treated with the Ilizarov fixation method

Introduction Soft-tissue origin joint contractures are a common orthopedic problem. It could be due to various etiologies. Treatment options are available from conservative to surgical methods. These joint contractures slowly become irreversible causing impairment in activities of daily routine. The Ilizarov method is a well established and time-tested method used for management of bone pathologies, but its use in the management of soft-tissue origin contractures is also possible. It has an established role in neoosteogenesis and histogenesis. Fixator assisted soft-tissue stretching done at sustained slow pace leads to histoneogenesis that avoids stretching of neurovascular structures and reduces the possibility of recurrence.Aims To determine usefulness of the Ilizarov method in management of joint contractures of soft tissue origin; to meet functional requirements of patients; to study complications of Ilizarov method in management joint contractures due to soft tissue origin.Material and methods A total of 6 cases of soft-tissue origin joint contractures due to tuberculosis, post‑traumatic stiffness, post-burn contracture, deformity due to a snake bite in the age group from 3 to 55 years were treated with gradual distraction of joint with the Ilizarov method from January 22 to October 23. Two cases were of triple knee deformity, two were post-traumatic elbow stiffness, one was post-burn great toe contracture and one was post snake bite valgus foot contracture. All cases were operated with transarticular Ilizarov frame application and gradual distraction of joints and soft tissue with the help of hinge- and rod distractor assembly done. All cases completed follow up of 1 year. Aggressive physiotherapy was given postoperatively.Results All cases obtained a reasonable functional outcome, with no recurrence of deformity. All patients walk independently.Conclusion The Ilizarov method can be used for treating joint contractures due to traumatic and non‑traumatic pathologies.

Hinged External Fixation Combined with Open Debridement for Post-traumatic Elbow Stiffness: A Systematic Review and Meta-analysis.

Open debridement remains the gold standard for the clinical treatment of post-traumatic elbow stiffness. However, postoperative complications, such as re-contraction and heterotopic ossification of the elbow joint, are highly prevalent. Hinged external fixation appears to offer the potential for greater improvement of joint function and reduction of complications. The purpose of this article is to provide the latest evidence on the effectiveness and safety of hinged external fixation combined with open debridement for the treatment of post-traumatic elbow stiffness. We searched for randomized controlled trials (RCTs) from the China National Knowledge Infrastructure, MEDLINE, PubMed, Web of Science, EMBASE, and Cochrane Library databases until December 31, 2022. STATA 15.1 software was used to analyze all the data for this article. The quality of the included articles was evaluated using the Cochrane Reviewer's Handbook 5.3. Finally, we selected 8 high-quality RCTs for our meta-analysis, which included 555 patients. The meta-analysis demonstrated that hinged external fixation combined with open debridement for post-traumatic elbow stiffness (treatment group) showed a significant increase in elbow flexion and extension mobility (WMD = 5.16, 95% CI 4.39-5.49, Z = 13.02, P = 0.000), Mayo elbow function scores (WMD = 5.25, 95% CI 4.33-6.17, Z = 11.15, P = 0.000), and Mayo excellent rate (RR = 1.25, 95% CI 1.14-1.37, Z = 4.87, P = 0.000). Additionally, there was a significant decrease in the complication rate (RR = 1.11, 95% CI 1.02-1.20, Z = 2.54, P = 0.011) compared to open debridement alone (control group). Furthermore, the results of the publication bias test showed no significant bias. With the assistance of hinged external fixation, open debridement for post-traumatic elbow stiffness can lead to increased elbow mobility and a reduced complication rate. However, due to the small sample size, a multicenter randomized controlled trial with a larger sample size is still necessary to further confirm the effectiveness and safety of hinged external fixation combined with open debridement for post-traumatic elbow stiffness. The online version contains supplementary material available at 10.1007/s43465-023-01087-y.

Treatment and rehabilitation of post-traumatic elbow stiffness with heterotopic ossification.

To investigate surgical treatment, postoperative rehabilitation and prevention of heterotopic ossification (HO) in patients with post-traumatic elbow stiffness. We performed a retrospective review of patients with post-traumatic elbow stiffness combined with HO between 2007 and 2021. This study was performed on a total of 15 patients (18 elbows) admitted to our hospital, consisting of 12 males and 3 females, with post-traumatic stiffness of the elbow combined with HO, where elbow function could not be recovered by rehabilitation and orthosis treatment. Fifteen patients were treated by surgical excision of heterotopic bones and release of elbow contracture combined with postoperative rehabilitation and orthosis-wearing. Comprehensive treatments, including radiation, oral ibuprofen medication, and manipulation techniques to improve range of motion, were used to prevent HO recurrence. The flexion-extension arc and functional score of the elbow were measured after treatment and compared with the preoperative measurements. Roentgenography was used to observe HO recurrence. After surgical treatment and postoperative rehabilitation, the patients' range of motion improved, and the functional score improved considerably. The postoperative flexion-extension arc and The Hospital for Special Surgery (HSS) functional score were statistically significantly higher than the preoperative values (p < 0.01). Roentgenographic examination showed no HO recurrence during the follow-up period. Surgical excision of heterotopic bones and elbow contracture release combined with postoperative rehabilitation and preventative HO measures can be an effective treatment for cases of post-traumatic elbow stiffness combined with HO, for which conservative treatment is ineffective.

Clinical Outcomes Following Surgical Management of Post-Traumatic Elbow Contractures in the Pediatric Age Group: A Meta-Analysis and Systematic Review

Post-traumatic elbow stiffness is a common occurrence resulting in potentially substantial functional limitations in both daily activities and recreational endeavors. In children, this can be particularly difficult given the early stages of childhood and development and the challenges of rehabilitation. Several studies have reported favorable results of elbow contracture releases in children, resulting in improvements in outcomes. This meta-analysis aimed to determine the efficacy and safety of elbow contracture releases in the pediatric population (<18 years), along with subgroup analyses comparing age groups, operative approach, and post-traumatic versus nontraumatic etiologies. Meta-analysis was performed with a multidatabase search (PubMed, OVID, EMBASE, and Medline) according to Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) guidelines on September 25, 2020. Data from all published literature meeting inclusion criteria were extracted and analyzed. Seven studies were included, comprising 114 post-traumatic elbow contractures. Mean age was 13.7 years. Contracture releases of the elbow led to improvements in flexion-extension arc of motion by 48º, and pronosupination arc of motion by 22º. Subgroup analysis comparing age groups of <10, 10-14 and 15-18 years showed greater improvements in flexion-extension arc in the older age group, whereas subgroup analysis comparing injury patterns revealed a larger improvement in pronosupination motion for radial head fractures. Comparing open and arthroscopic procedures, open releases had greater improvement in both flexion-extension and pronosupination motion by 18º and 21º, respectively, although there were limited patients in the arthroscopy group. Operative management of pediatric elbow contractures is effective. Older children, children with radial head fractures, and those receiving open contracture releases may be more likely to have greater improvements. Therapeutic IV.

Tranexamic acid in patients with post-traumatic elbow stiffness: protocol for a randomised, double-blind, placebo-controlled trial investigating the effectiveness of tranexamic acid at reducing the recurrence of heterotopic ossification after open elbow arthrolysis

IntroductionExaggerated inflammatory response is one of the main mechanisms underlying heterotopic ossification (HO). It has been suggested that the antifibrinolytic drug tranexamic acid (TXA) can exert a significant anti-inflammatory effect...

Arthroscopic Capsular Release for Post-traumatic Elbow Stiffness.

Post-traumatic elbow stiffness (PTES) may substantially affect the patient's functional range of motion and quality of life. Open elbow release has been extensively studied, but arthroscopic techniques are limited, particularly in differentiating between post-traumatic and non-traumatic stiffness. The purpose of this study is to assess the clinical outcomes after arthroscopic release of PTES regarding the range of motion (ROM), pain, functional assessment, and complications. A prospective cohort was conducted on adult patients who underwent arthroscopic arthrolysis for PTES, with 32 patients included in the final analysis. The ROM was measured using the orthopedic goniometer. Grip strength was measured using the Camry digital hand dynamometer (Camry, CA, USA) and compared to their contralateral side. The functional status of the patients was evaluated using the American Shoulder and Elbow Surgeons Score (ASES)andthe Mayo Elbow Performance Index (MEPI). All measurements were done before surgery and at the last follow-up visit. Pre-operative and post-operative changes in MEPI, ASES, and visual analog (VAS) scores were compared with the paired t-test. After surgery, the ROM significantly improved from 74 ± 11 to 110 ± 15 degrees (p<0.001). Additionally, the ASES score and MEPI index both significantly improved from 69 ± 3.4 to 79 ± 6.3 and from 64 ± 5.7 to 82 ± 8, respectively (p<0.001). VAS scores also significantly improved from 1.1 ± 0.87 to 0.31 ± 0.53 at rest (p<0.001). The complication rate was 12%, including three transient ulnar nerve paresthesia and one superficial infection. Post-traumatic elbow release was more offered in distal humerus fractures (53%), followed by proximal ulna fracture/dislocations (25%). We believe that arthroscopic arthrolysis is a safe and reliable treatment of PTES, which improves joint visibility and reduces pain. Patients can be counseled regarding the risk of a secondary surgery following distal humerus or proximal ulna fractures, including the expected recovery and complication rate.

3D-printing of the elbow in complex posttraumatic elbow-stiffness for preoperative planning, surgery-simulation and postoperative control

BackgroundRestoration of mobility of the elbow after post-traumatic elbow stiffening due to osteophytes is often a problem.MethodsThe anatomical structures were segmented within the CT-scan. Afterwards, the Multi Jet Fusion 3D-printing was applied to create the model made of biocompatible and steam-sterilizable plastic. Preoperative simulation of osteophyte resection at the 3D-model was performed as well as the direct comparison with the patient anatomy intraoperatively.ResultsThe patient-specific was very helpful for the preoperative simulation of the resection of elbow osteophytes. The 3D anatomical representation improved the preoperative plan its implementation. A high degree of fidelity was found between the 3D Printed Anatomical representation and the actual joint pathology.ConclusionsArthrolysis of complex post-traumatic bony changes is an important indication for the use of 3D models for preoperative planning. Due to the use of 3D printing and software simulation, accurate resection planning is feasible and residual bony stiffening can be avoided. 3D printing models can lead to an improvement in surgical quality.

Resection Outcomes of Posttraumatic Elbow Heterotopic Ossification: Multicenter Case Series at a Minimum 5-Year Follow-Up.

Heterotopic ossification (HO), a common complication after elbow trauma, causes severe limb disability. Resection is usually performed for posttraumatic elbow HO (PTEHO) to regain mobility, and although heavily reported, there has been no long-term (minimum, 5-year) follow-up. A total of 173 patients who underwent PTEHO resection were followed up for a minimum of 5 years in 4 hospitals between January of 2015 and August of 2016. Demographics, disease characteristics, and preoperative and minimum 5-year assessments were collected. After controlling for potential variables when dividing long-term range of motion (ROM) into less than 120 degrees and greater than or equal to 120 degrees, risk factors for ROM recovery to modern functional arc were identified through multivariable regression analysis. Clinically important improvements in ROM from 39 degrees to 124 degrees were obtained at final follow-up, and 74.6% achieved modern functional arc (≥120 degrees). Mayo Elbow Performance Index had clinically important increases from 69 to 93 points at final follow-up, and 96.5% reported excellent to good. Pain (numeric rating scale, from 1.9 to 0.6 points) and ulnar nerve symptoms were improved. The total complication rate was 15.6%, including new-onset ulnar nerve symptoms (5.8%), HO recurrence with clinical symptoms (6.9%), elbow instability (1.7%), and joint infection (1.2%). Previously reported high body mass index ( P = 0.002) and long disease duration ( P = 0.033) were equally identified as risk factors for not achieving modern functional arc; meanwhile, tobacco use ( P = 0.024) and ankylosed HO ( P < 0.001) were found to be new risk factors. Resection yields satisfactory outcomes for PTEHO at long-term follow-up of a minimum of 5 years. High body mass index, tobacco use, long disease duration, and ankylosed HO would negatively affect ROM recovery to a modern functional arc (≥120 degrees). Risk, III.

The Shanghai Elbow Dysfunction Score: Psychometric Properties, Reliability and Validity Study of the Turkish Version.

The Shanghai Elbow Dysfunction Score (SHEDS) is a self-reported assessment of post-traumatic elbow stiffness that measures elbow-related symptoms and elbow motion capacities. This study aimed to (1) translate and cross-culturally adapt the SHEDS into Turkish and (2) investigate the psychometric properties of the Turkish version in patients with post-traumatic elbow stiffness. The psychometric properties of the Turkish version of the SHEDS (SHEDS-T) were tested in 108 patients (72 male; mean age, 43.2 ± 11.2years) with post-traumatic elbow stiffness. Cronbach's alpha was used to assess internal consistency. The intraclass correlation coefficients were used to estimate test-retest. Construct validity was analyzed with the Turkish version of the Disabilities Arm, Shoulder and Hand (DASH), the Mayo Elbow Performance Score (MEPS), and the Short Form-12 (PCS-12 and MCS-12). The SHEDS-T showed sufficient internal consistency (Cronbach's α coefficient = 0.83) and test-retest reliability (ICC = .96). The correlation coefficients between the SHEDS-T, the DASH, and the MEPS were .75 and .54, respectively (p < .001). There was a moderate correlation between the SHEDS-T and PCS-12 (r = .65, p = .01) and a weak positive correlation between the SHEDS and the MCS-12 (r = .40, p = .03). The SHEDS-T has sufficient reliability and validity to measure elbow-related symptoms and elbow motion capacities for Turkish-speaking individuals with post-traumatic elbow stiffness.

Anxiety and depression are associated with poor outcomes in open elbow arthrolysis

BackgroundOpen elbow arthrolysis (OEA) is an established treatment for posttraumatic elbow stiffness (PTES); however, its efficacy is debatable for some patients. Poor surgical outcomes have been associated with anxiety and depression in other orthopedic conditions, but no studies have examined this association in OEA. In this study, we aimed to determine whether a high preoperative anxiety and depression score is associated with a worse functional outcome in OEA for PTES. MethodsA retrospective review of prospectively collected data was carried out in patients undergoing OEA between April 2021 and March 2022. Mental state evaluated by Hospital Anxiety and Depression Scale (HADS), subjective elbow function valued by Disabilities of the Arm, Shoulder, and Hand (DASH) score, objective elbow function valued by Mayo Elbow Performance Score (MEPS), pain score measured by visual analog scale (VAS) and the flexion-extension range of motion (ROM) of the affected elbow were collected before and after surgery in outpatient clinic follow-up at 3 months and 6 months. Patient satisfaction was only recorded 6 months postoperatively. All patients were divided into 2 groups based on the preoperative HADS score for analysis: Group A was the nonanxiety-depression group, and Group B was the anxiety-depression group. ResultsA total of 49 patients were included. Both groups improved in DASH, MEPS and ROM at 3 months and at 6 months. The HADS score in Group B decreased significantly at 6 months, showing that the mental state of patients in Group B improved after surgery. Group A had a lower DASH at 3 months and 6 months, larger 6-month ROM and higher satisfaction rate than Group B. Comparing the differences between preoperative and postoperative measurements, Group A improved more in ROM at 6 months. There was no significant difference in other outcome measures between the two groups. ConclusionsOEA is a safe and effective treatment for PTES, and can achieve good clinical outcomes in the short-term follow-up, regardless of whether the patients suffer from anxiety or depression. Patients with a HADS score ≥11 before OEA, however, have worse outcomes than those with a HADS score <11. Level of evidenceLevel II; Retrospective Design; Prognosis Study

Management of Post-traumatic Elbow Stiffness

Management of Post-traumatic Elbow Stiffness

Capitellum and Capitellar-Trochlear Shear Injury in Children.

We report our clinical results following surgical intervention for capitellar fractures in a pediatric population, highlighting approaches, surgical instruments, and possible prognostic factors. Retrospective descriptive case-series study. A tertiary referral hospital. Twelve pediatric patients with capitellar or capitellar-trochlear injuries were treated between 2017 and 2021. Open reduction and internal fixation primarily using cannulated headless screws. The mean follow-up period was 22 months (range: 10-35 months). Functional outcomes were assessed using the Mayo Elbow Performance Score. Post-traumatic elbow arthrosis was assessed using the Bromberg and Morrey rating system. All fractures healed within 5-7 weeks. The mean Mayo Elbow Performance Score value was 98 (range, 85-100). Three patients developed arthrosis, and one had capitellar osteonecrosis. Based on our experience, the Kocher approach and fixation of 2-3 retrograde cannulated screws together represent an appropriate surgical technique for isolated capitellar fractures, whereas good functional outcomes are attainable for capitellar-trochlear shear fractures using the transolecranon approach with 3 cannulated screw fixations. Further injuries to the osseoligamentous structures around the elbow joint are suspected to be an unfavorable prognostic factor. Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.

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.

Open arthrolysis versus arthroplasty in the treatment of posttraumatic elbow stiffness

Elbow stiffness is a common problem following trauma to the elbow. Sixty-seven patients with posttraumatic elbow stiffness were surgically treated between 1985 - 2000. Sixty-one were clinically reviewed after a mean follow-up of 15 years (range: 7 to 19 years). The initial trauma had resulted in 8 intrinsic, in 31 extrinsic and in 28 mixed lesions. The mean preoperative flexion – extension arc of motion, was 46°. After an unsuccessful conservative treatment, open surgical arthrolysis was performed in 59 patients with exclusively extrinsic or mixed lesions, through a lateral approach combined with a medial approach when deemed necessary. In patients with complex intrinsic lesions was performed 3 resection arthroplasty and 5 total elbow arthroplasty. At final follow-up, the mean arc of motion of the elbow was significantly improved to 100° in 56 patients who had undergone open arthrolysis; 3 were lost to follow-up. Among the 3 patients who had undergone arthroplasty resection, only one had a markedly improved elbow function with a 90° arc of motion; elbow stiffness had recurred in the other two patients. Of the 5 patients who underwent total elbow arthroplasty, 3 were lost to follow-up; the other 2 patients had a stable elbow, with a fair arc of motion of 60° and 70° respectively, both with a flexion contracture of 20°. Complications included 2 superficial infections, which healed following conservative treatment, and one fracture following remodeling of a malunited distal fracture of the humerus. In the treatment of the posttraumatic stiffness of the elbow, the arthrolysis and the arthroplasty are indicated in dependence on the existent (extrinsic or intrinsic) lesions and on their severity.

Early Joint Use Following Elbow Dislocation Limits Range-of-Motion Loss and Tissue Pathology in Posttraumatic Joint Contracture.

Simple elbow dislocation occurs at an incidence of 2.9 to 5.21 dislocations per 100,000 person-years, with as many as 62% of these patients experiencing long-term elbow joint contracture, stiffness, and/or pain. Poor outcomes and the need for secondary surgical intervention can often be prevented nonoperatively with early or immediate active mobilization and physical therapy. However, immobilization or limited mobilization may be necessary following trauma, and it is unknown how different periods of immobilization affect pathological changes in elbow joint tissue and how these changes relate to range of motion (ROM). The purpose of this study was to investigate the effects of varying the initiation of free mobilization on elbow ROM and histological features in an animal model of elbow posttraumatic joint contracture. Traumatic elbow dislocation was surgically induced unilaterally in rats. Injured forelimbs were immobilized in bandages for 3, 7, 14, or 21 days; free mobilization was then allowed until 42 days after injury. Post-mortem joint ROM testing and histological analysis were performed. One-way analysis of variance was used to compare ROM data between control and injured groups, and Pearson correlations were performed between ROM parameters and histological outcomes. Longer immobilization periods resulted in greater ROM reductions. The anterior and posterior capsule showed increases in cellularity, fibroblasts, adhesions, fibrosis, and thickness, whereas the measured outcomes in cartilage were mostly unaffected. All measured histological characteristics of the capsule were negatively correlated with ROM, indicating that higher degrees of pathology corresponded with less ROM. Longer immobilization periods resulted in greater ROM reductions, which correlated with worse histological outcomes in the capsule in an animal model of posttraumatic elbow contracture. The subtle differences in the timing of ROM and capsule tissue changes revealed in the present study provide new insight into the distinct timelines of biomechanical changes as well as regional tissue pathology. This study showed that beginning active mobilization 3 days after injury minimized posttraumatic joint contracture, thereby supporting an immediate-motion clinical treatment strategy (when possible). Furthermore, uninjured but pathologically altered periarticular tissues near the injury location may contribute to more severe contracture during longer immobilization periods as the disease state progresses.