Capsular Distension Research Articles

Effectiveness of strengthening and stretching exercise along with proprioceptive neuromuscular facilitation techniques to reduce pain and improve shoulder range of motion in adhesive capsulitis: A literature review

Abstract: Adhesive capsulitis (AC) can be defined as a common condition characterized by insidious and gradual inflammation of the glenohumeral joint capsule leading to its contracture and thus resulting in stiffness and loss of shoulder mobility. The disease causes slowly increasing pain and gradually decreasing range of motion (ROM), creating difficulty performing daily activities. Treatments advocated for AC include rehabilitation as the initial conservative measure, anti-inflammatory drugs, intra-articular corticosteroids, capsular distension injections, and surgical interventions The purpose is to review literatures on the effectiveness of strengthening and stretching exercise along with proprioceptive neuromuscular facilitation techniques to reduce pain and improve shoulder ROM in AC.

Capsular bag distension syndrome with sulcus IOL acting as a seal

Capsular bag distension syndrome (CBDS) is a rare complication following cataract surgery with posterior chamber intraocular lens (IOL) implantation. We describe the case of a 68-year-old female who developed early-onset CBDS of her left eye after manual small-incision cataract surgery with implantation of posterior chamber IOL in the sulcus (Excel PMMA IOL (polymethyl methacrylate), Manufactured by Excel Optics (P) Limited, Chennai). The patient had an uneventful cataract surgery performed by a resident in training. Her immediate postoperative uncorrected vision was 20/40, but it decreased to finger counting 1 m on postoperative day 7, for which she presented back to hospital. Slit-lamp examination revealed a quiet anterior chamber without any cells–flare with IOL in the sulcus with a relatively smaller capsulorhexis of about 5 mm, and IOL optic was covering the capsulorhexis in a symmetric fashion, thus causing a block. Distension of capsular bag was further confirmed by Anterion anterior segment optical coherence tomography (Heidelberg Engineering Technology, Germany), which showed a confined hyperechogenic fluid trapped between the IOL and the posterior capsule. She was diagnosed with CBDS secondary to retention of turbid fluid. Phased treatment was done; neodymium-doped yttrium aluminum garnet capsulotomy was tried in the first attempt, but failed as the posterior capsule was far too behind. This was followed by anterior chamber wash with redialing of the lens in the bag, which thereby improved vision to 20/20 (best corrected visual acuity) at 1-week postoperatively. Even with IOL in the sulcus, the postoperative CBDS may rarely happen at any point of time with a small capsulorrhexis and an intumescent mature cataract. Immense cortex wash should always be kept in mind in such a case, as the liquefied cortex is sometimes stuck at the equator and a little more duration of irrigation is required in such scenarios. Hence, complete clearance of turbid fluid of intumescent mature cataract variety also holds due importance similar to the need of removing viscoelastic substance to prevent CBDS.

Multimodal imaging of capsular bag distension syndrome

Multimodal imaging of capsular bag distension syndrome

Septic Arthritis of the Sternoclavicular Joint.

Sternoclavicular joint (SCJ) septic arthritis is a rare but rapidly fatal joint infection. Without proper medical or surgical management, it can progress to osteomyelitis, chest wall abscess, mediastinitis, or myositis. A 57-year-old male with a past history of intravenous drug use presented to the emergency department (ED) with chest tenderness of one week duration. Vital signs were unremarkable, and exam was notable for tender, raised right SCJ without any fluctuance. On point-of-care ultrasound we noted fluid collection and capsular distention along the SCJ, which aided in rapidly diagnosing septic arthritis. The patient was immediately started on antibiotics and taken to the operating room for excision and debridement. While computed tomography is routinely used in the emergency department for diagnosing septic arthritis, ultrasound offers a rapid and safe alternative for diagnosis.

Spontaneous splenic rupture associated with scrub typhus: a case report

BackgroundScrub typhus, an acute febrile disease with mild to severe, life-threatening manifestations, potentially presents with a variety of complications, including pneumonia, acute respiratory distress syndrome, cardiac arrhythmias (such as atrial fibrillation), myocarditis, shock, peptic ulcer, gastrointestinal bleeding, meningitis, encephalitis, and renal failure. Of the various complications associated with scrub typhus, splenic rupture has rarely been reported, and its mechanisms are unknown. This study reports a case of scrub typhus-related spontaneous splenic rupture and identifies possible mechanisms through the gross and histopathologic findings.Case presentationA 78-year-old man presented to our emergency room with a 5-day history of fever and skin rash. On physical examination, eschar was observed on the left upper abdominal quadrant. The abdomen was not tender, and there was no history of trauma. The Orientia tsutsugamushi antibody titer using the indirect immunofluorescent antibody test was 1:640. On Day 6 of hospitalization, he complained of sudden-onset left upper abdominal quadrant pain and showed mental changes. His vital signs were a blood pressure of 70/40 mmHg, a heart rate pf 140 beats per min, and a respiratory rate of 20 breaths per min, with a temperature of 36.8 °C. There were no signs of gastrointestinal bleeding, such as hematemesis, melena, or hematochezia. Grey Turner's sign was suspected during an abdominal examination. Portable ultrasonography showed retroperitoneal bleeding, so an emergency exploratory laparotomy was performed, leading to a diagnosis of hemoperitoneum due to splenic rupture and a splenectomy. The patient had been taking oral doxycycline (100 mg twice daily) for 6 days; after surgery, this was discontinued, and intravenous azithromycin (500 mg daily) was administered. No arrhythmia associated with azithromycin was observed. However, renal failure with hemodialysis, persistent hyperbilirubinemia, and multiorgan failure occurred. The patient did not recover and died on the fifty-sixth day of hospitalization.ConclusionsClinicians should consider the possibility of splenic rupture in patients with scrub typhus who display sudden-onset abdominal pain and unstable vital signs. In addition, splenic capsular rupture and extra-capsular hemorrhage are thought to be caused by splenomegaly and capsular distention resulting from red blood cell congestion in the red pulp destroying the splenic sinus.Graphical abstract

Combined genicular artery embolization and genicular nerve block to treat chronic pain following total knee arthroplasty

BackgroundChronic knee pain after total knee arthroplasty (TKA) is a common complication that is difficult to treat. This report aims to highlight the benefit of combining embolotherapy and neurolysis intervention for symptomatic relief of post-TKA pain in a patient with long-standing pain refractory to conservative management.Case presentationA 77-year-old man who had previously undergone left knee arthroplasty has been grappling with worsening knee effusion and debilitating pain, resulting in limited mobility and progressive musculature deconditioning over a 20-year period. Diagnostic arteriography showed marked diffuse periarticular hyperemia around the medial and lateral joint spaces of the left knee, along with capsular distention. The patient initially underwent microsphere embolization to selectively target multiple branches of the genicular arteries, achieving a 50% reduction in pain at the one-month follow-up. Subsequently, the patient underwent image-guided genicular nerve neurolysis, targeting multiple branches of the genicular nerves, which led to further pain reduction (80% compared to the initial presentation or 60% compared to post-embolization) at the one-month follow-up. This improvement facilitated weight-bearing and enabled participation in physical therapy, with sustained pain relief over the 10-month follow-up period.ConclusionThe combination of genicular artery embolization and genicular nerve block may be a technically safe and effective option for alleviating chronic pain after total knee arthroplasty.

Evaluating Hip Periprosthetic Joint Infection with Metal-artifact-reduction MR Imaging.

To evaluate the significant findings of hip periprosthetic joint infection (PJI) using metal-artifact-reduction (MAR) MRI and to compare the MRI results to other clinical markers. The results of MRI, including two-dimensional fast-spin echo sequences with increased bandwidth and multi-acquisition variable-resonance image combination selective for hips with orthopedic implants at 1.5T (from April 2014 to November 2021), were retrospectively assessed for imaging findings and diagnostic impressions by two radiologists. Clinical data and courses were also investigated. Univariate and multivariate analyses were performed to identify the significant MRI findings in patients with hip PJI and those who underwent surgical intervention. The MRI impressions were compared with other clinical markers in diagnosing hip PJI. Thirty-seven hip joints in 24 Asian patients (age = 73.9 ± 10.8 years; 18 females) were included. Twelve hip joints (32%) had PJI; seven underwent a surgical intervention. The significant findings for hip PJI included periosteal edema of the acetabulum, intermuscular edema, intramuscular fluid collection, and lymphadenopathy (P < 0.05). In the cases with surgical intervention, the significant findings included capsular distension, capsular thickening, an osteolysis-like pattern of the femur, subcutaneous fluid collection, and lymphadenopathy (P < 0.05). The MRI impressions had high diagnostic significance for both hip PJI cases and those with surgical intervention (P < 0.001). The MRI impression was more significant for hip PJI than the other clinical markers (P < 0.05), while the other clinical markers were more significant in the cases with surgical intervention (P < 0.05). The significant findings in the hip PJI cases included acetabular periosteal edema, intermuscular edema, intramuscular fluid collection, and lymphadenopathy. The significant findings in the cases with surgical intervention included capsular distention, capsular thickening, a femoral osteolysis-like pattern, subcutaneous fluid collection, and lymphadenopathy. The utilization of MAR MRI demonstrated great diagnostic significance for hip PJI.

Positive dysphotopsia after implantation of an EDOF intraocular lens

Introduction: This report describes a case of positive dysphotopsia (PD) after refractive lens exchange (RLE) with implantation of an extended depth-of-focus (EDOF) intraocular lens (IOL). Patient and Clinical Findings: A healthy 48-year-old man underwent RLE with bilateral implantation of a nontoric EDOF IOL and suffered from monocular triplopia in both eyes. The visual acuity was suboptimal with an uncorrected distance visual acuity of 20/25 in the right eye and 20/30 in the left eye. Diagnosis, Intervention and Outcomes: Slitlamp examination showed well-centered implanted IOLs, without capsular distension syndrome. Bilateral IOL exchange was performed with an aspheric monofocal IOL with a 7.0 mm optic diameter, which diminished the PD complaints. Conclusions: This case report describes disturbing PD after bilateral implantation of an EDOF IOL. Exchange of these EDOF IOLs with a larger optical diameter monofocal IOL resulted in resolution of symptoms.

Direct MR arthrography of the hip joint: anterior approach without imaging guidance.

The purpose of this study is to describe the anterior injection approach, with anatomical landmark guidance, for direct MR arthrography (dMRA) of the hip joint, and to evaluate the effectiveness in joint distension and the security of the technique. Retrospective review of hip dMRAs was conducted on patients with suspected intra-articular pathology from two MR outpatient centers, performed by two radiologists with 25 and 5years of experience, respectively. The analysis included assessing the presence of intra-articular contrast material (gadolinium-based solution), the number of injections performed, the degree of joint distension, and the degree of contrast extravasation. A multi-variant analysis was carried out to determine if the procedure success depend on any of the demographic variants or on the radiologist experience. Additionally, the presence of immediate and medium-term post-puncture complications was evaluated. One hundred patients with 104 hip dMRA were included; 60 were men, with mean age of 38years (16-63years). Contrast material was successfully introduced intra-articularly in 100% of patients, being necessary a second puncture only in 6% of procedures. The capsular distension was considered optimal for diagnosis in 97% of cases. Different degrees of contrast extravasation were found in 30% of dMRA. There was no statistically significant relationship observed between patient variables and the performance of dMRA, nor did it show any correlation with the experience of the radiologists. No puncture-derived complications were found. Hip dMRA through anterior injection guided by anatomical references is an effective and safe alternative for patients with suspected intra-articular pathology.

Late-onset capsular bag distension syndrome drainage captured on SSOCT

Late-onset capsular bag distension syndrome drainage captured on SSOCT

Structural ultrasound of joints and tendons in healthy children: development of normative data

BackgroundMusculoskeletal ultrasound is a well accessible technique to assess disease activity in children with juvenile idiopathic arthritis. Knowledge of reference values of joint structures is indispensable to differentiate between physiological and pathological finding. The aim of this study was to assess the structural sonographic features of joints and tendons in healthy children from several age groups (0.2–18 year), and develop a set of normative data.MethodsGreyscale ultrasound was performed in 500 healthy children (age 0.2–18 years) according to a predefined scanning protocol (Additional file 1) including the shoulder, elbow, wrist, second metacarpophalangeal joint, hip, knee, ankle, and first metatarsophalangeal joint). Demographic data and values of cartilage thickness, tendon diameters, and the degree of capsular distention measured by bone-capsular distance (BCD) were collected. Differences according to the sex were assessed by unpaired t-test. Single and multiple regression analyses were performed between the ultrasound outcomes and covariates such as age, height, weight and body mass index. Growth charts and tables were developed with respect to age. Nonparametric quantile regression was applied using the R-packages quantreg and quantregGrowth.ResultsA total of 195 male and 305 female volunteers were included between the age of 0 and 18 years (mean age 8.9; range: 0.2–17.9 years). Cartilage diminished markedly as children aged, and cartilage of the boys was significantly thicker compared to the girls in all joints (p < 0.001). In addition, cartilage became thinner as children’s height and weight increased (beta regression coefficients between − 0.27 and − 0.01, p < 0.0001). Capsular distention (i.e., BCD > 0 mm) was uncommon in the ankle, wrist and MCP2 (resp. in 3, 6, and 3% of cases). It was more common in the suprapatellar and parapatellar knee, MTP1 and posterior recess of the elbow (resp. in 34, 32, 46, and 39% of cases). In the hip, some capsular distention was always present. Age was found to be the best predictor for BCD (beta regression coefficients between 0.05 and 0.13, p < 0.0001). Height was, in addition to age, a good predictor of tendon diameter (beta regression coefficients between 0.03 and 0.14, p < 0.0001). Growth curves and tables for each variable were developed.ConclusionsReference values of sonographic cartilage thickness, BCD and diameters of tendons at several joints were established from 500 healthy children, aged between 0.2 and 18 years. Growth charts and tables were developed to distinguish normal findings from pathology in children with complaints suspicious of arthritis.

Capsular distension in high-energy femoral shaft fractures is associated with occult femoral neck fracture: a preliminary retrospective comparative study.

To determine the association between hip capsular distension, the computed tomography (CT) capsular sign, and lipohemarthrosis as they relate to occult femoral neck fracture (FNF) in the setting of ipsilateral femoral shaft fracture (FSF). Retrospective comparative study. Level 1 trauma center. Two hundred and forty-two patients with high-energy FSF and no evidence of FNF on preoperative radiographs and pelvis CT. All patients were stabilized with non-reconstruction style nails. Pelvis CT scans were examined for hip capsular distension irrespective of the other side, differing side-to-side measurements of capsular distension (i.e., the CT capsular sign), and lipohemarthrosis. FNF was observed for on postoperative radiographs. Relative risk (RR), number needed to treat (NNT), sensitivity (SN), and specificity (SP) were determined. Fifty-eight patients (24.0%) had capsular distension. Forty-two patients (17.4%) had differing capsular measurements (i.e., the CT capsular sign), and 16 (6.6%) had symmetrical distension from bilateral hip effusions. Eight patients (3.3%) had lipohemarthrosis. Four FNFs (1.7%) were identified. Three patients had capsular distension, 2 had CT capsular signs, and 1 had lipohemarthrosis. The last patient had no CT abnormalities. Only capsular distension (RR = 10, CI = 1.001-90, P = 0.049; SN = 75%, SP = 77%; NNT = 22) and lipohemarthrosis (RR = 23, CI = 1.6-335, P = 0.022; SN = 50%, SP = 96%; NNT = 8) were associated with occult FNF. Capsular distension is associated with FNF irrespective of the contralateral hip. Preemptive stabilization using a reconstruction nail could be considered in the setting of capsular distension or lipohemarthrosis to prevent displacement of an occult FNF. Diagnostic Level III.

Acute Effects of Neodymium-Doped Yttrium Aluminum Garnet Laser Capsulotomy on Anterior Segment Parameters in Capsular Bag Distension Syndrome.

Background: Capsular bag distension syndrome (CBDS) can be effectively treated using either Neodymium-doped Yttrium Aluminum Garnet (Nd:YAG) laser capsulotomy or surgery. Assessing anterior segment, particularly immediately after Nd:YAG laser capsulotomy, could provide clinically relevant information on ocular dynamics, refractive changes, and complication mechanisms, especially in late postoperative CBDS. Objective: To explore the acute effects of Nd:YAG laser posterior capsulotomy on anterior segment parameters in late postoperative CBDS. Methods and results: In this study, 20 patients underwent Nd:YAG laser posterior capsulotomy after cycloplegia, during which milky-white fluid material migrated into the anterior vitreous. Anterior segment parameters were assessed before and immediately after laser using Scheimpflug-Placido topographer. The main outcome measures were differences in best-corrected visual acuity (BCVA), aqueous depth (AqD), anterior chamber volume (ACV), iridocorneal angle (ICA), corneal volume (CV), and central corneal thickness (CCT) at the baseline versus at immediately after laser. The mean age and duration since surgery for CBDS presentation were 70.25 ± 6.21 and 6.15 ± 1.31 years, respectively. The AqD, ACV, ICA, and spherical equivalent increased significantly compared with baseline (4.18 vs. 4.02 mm, p = 0.001; 177 vs. 173.55 mm3, p = 0.004; 51.15° vs. 50.15°, p = 0.023; -1.00 vs. -2.00 D, p = 0.003, respectively). These changes were also associated with significantly improved BCVA an hour after capsulotomy [0.2 (0.05-0.2)] relative to baseline [0.3 (0.2-0.5)], (p = 0.001). CCT and CV decreased nonsignificantly; horizontal AC diameter and K1 and K2 increased nonsignificantly (p > 0.05). Conclusions: Nd:YAG laser posterior capsulotomy appears to be an effective CBDS treatment for acutely improving vision, potentially due to immediate refractive changes caused by altered anterior segment parameters.

Adhesive capsulitis: a review of current clinical treatments

Adhesive Capsulitis of the shoulder or arthrofibrosis describes a pathological process in which the body forms excessive scar tissue or adhesions across the glenohumeral joint, leading to pain, stiffness, and dysfunction. It is a debilitating condition that can occur spontaneously (primary or idiopathic adhesive capsulitis) or following shoulder surgery or trauma (secondary adhesive capsulitis). Here we review the pathophysiology of adhesive capsulitis of the shoulder, highlighting its clinical presentation, natural history, risk factors, pathoanatomy, and pathogenesis. Both current non-operative and operative treatments for adhesive capsulitis are discussed and evidence-based studies are presented in support of or against each corresponding treatment. Research carried out in the MEDLINE/ PubMed / Research gate/ Google scholars using Mesh Terms: “adhesive capsulitis”, “frozen shoulder”, and “treatment”. The articles in English published were selected, after which non-relevant articles were excluded based on the title, reading of the abstract, and full article. Physical therapy along with medication has proven to be beneficial either isolated or concomitantly with other therapeutic approaches. Alternate options like capsular distension, manipulation under anesthesia, and arthroscopic surgery have reported good results, especially in refractory cases. No significant benefits were found with the use of oral corticosteroids, NSAIDs, or acupuncture. New treatment options are currently being tested with promising results. There are several effective options for the treatment of Adhesive capsulitis. In the early stages, conservative measures should be chosen with special emphasis on physical therapy within the limits of pain associated with low-dose intra-articular injection of corticosteroids. More invasive treatment options should be suggested namely capsular distention and manipulation under anesthesia.

Capsular Bag Distension Syndrome after Uneventful DMEK for Fuchs Corneal Endothelial Dystrophy

Capsular bag distension syndrome (CBDS), or capsular block syndrome, is a rare complication (< 1%) following cataract surgery with continuous curvilinear capsulorhexis, phacoemulsification, and intraocular lens (IOL) implantation in the capsular bag. It is characterized by accumulation of cloudy fluid between the IOL and the posterior lens capsule. The signs or symptoms can develop in the early or late postoperative period and have been reported even 20 years after cataract surgery [1]. The entrapped fluid leads to poor visual acuity. A myopic refractive shift in 80% of patients and hyperopic shift in 20% of patients have been reported [2]. In some cases, elevation of intraocular pressure (IOP) has been described.

Multimodality imaging technique for capsular bag distension syndrome

Multimodality imaging technique for capsular bag distension syndrome

Conservative treatment of patients with secondary adhesive capsulitis

Background. Secondary adhesive capsulitis, similar to idiopathic one, is accompanied by thickening of the glenohumeral joint capsule and loss of its elasticity. Nonoperative management of secondary adhesive capsulitis associated with shoulder soft tissue injuries, impact of prolonged immobilization or surgical treatment still remains controversial. Capsular distension with steroids as in idiopathic adhesive capsulitis is often not used for one reason or another. The purpose: to compare the results of conservative treatment in patients with secondary adhesive capsulitis who underwent or not capsular distension with steroids during the treatment. Materials and methods. From 2015 to 2021 at the Department for Microsurgery and Reconstructive-Recovery Surgery of Upper Limb of the State Institution “Institute of Traumatology and Orthopaedics of the National Academy of Medical Sciences of Ukraine” (Kyiv) and Ivano-Frankivsk Regional Clinical Hospital, we have conducted conservative treatment for 825 patients with various soft tissue pathology of the shoulder joint complicated by secondary adhesive capsulitis. All patients were divided into two groups: first one— conservative treatment, second one — conservative treatment with intraarticular injections (capsular distension) with steroids. In our study, we evaluated the function of the shoulder joint using the Constant Shoulder Score (CSS) and visual analog scale (VAS) before treatment and after 3 and 6 months. Results. Patients from first group (conservative treatment without distension intraarticular injections) had worse average functional results 3 month after starting treatment according to CSS (p=0.13) and VAS (p=0.24) compared to subjects of second group. Six months after the start of treatment, patients from first group had significantly worse results by CSS and VAS than those from group 2, where distension intraarticular injections were performed (p=0.03 and p = 0.06, respectively). Conclusions. Conservative treatment of patients with secondary adhesive capsulitis of the shoulder joint should be comprehensive, differentiated and include both non-drug treatment methods and distension intraarticular injections with long-acting steroids.

Capsular bag distension syndrome after uneventful DMEK for Fuchs corneal endothelial dystrophy

AbstractPurpose: Capsular bag distension syndrome or capsular block syndrome is a rare complication of cataract surgery characterized by accumulation of fluid between the intraocular lens and the posterior lens capsule, leading to visual deterioration. A small continuous curvilinear capsulorhexis, residual cortical lens material, as well as residual viscoelastic material behind the intraocular lens are associated with increased risk of fluid entrapment. Capsular bag syndrome usually occurs in the early postoperative period, but it has also been described as late as 14 years after cataract surgery. Nd‐YAG laser posterior capsulotomy is the treatment of choice in most cases, facilitating the drainage of the fluid in the vitreous cavity. Late‐onset capsular block syndrome is often associated with Propionibacterium acnes, requiring surgical management.Methods: Hereby we report a case of a 72‐year‐old female patient with Fuchs corneal endothelial dystrophy, who developed a capsular block syndrome after an uneventful endothelial keratoplasty (DMEK).Results: In the early postoperative period after the DMEK, we observed the development of capsular block syndrome OS. The patient was subjected to bilateral cataract surgery 6 years ago. After intensive follow‐up examination for excluding Propionibacterium acnes‐related endophthalmitis, we proceeded with Nd‐YAG capsulotomy, which resulted in drainage of the fluid in the vitreous cavity and immediate visual recovery.Conclusions: To our knowledge this is the first report of capsular bag syndrome after DMEK and therefore anterior segment surgeons should be aware of this rare complication.

Ultrasound-guided injection with hyaluronic acid in hip osteoarthritis: efficacy and safety in a real-life setting.

For knee OA, EULAR has included hyaluronic acid (HA) intra-articular injection in the 2003 recommendations, making the intra-articular injection a sound therapeutic option. The ultrasound-guided intra-articular injections (USGIAI) have been demonstrated to be more efficient and safe in comparison to the blind procedure. Our objectives were to evaluate the short- and medium-term efficacy and safety of USGIAI of HA in moderate hip OA and patients' additional NSAIDs/pain killer intake. Patients with hip OA (KLG II/III), that failed standard of care therapy, received 3 consecutive HA-USGIAI (case group) while other patients (KLG II/III) treated according to current guidelines were chosen as a control group. Demographic data, comorbidities and medication intake were recorded. VAS pain scale and WOMAC score were performed at baseline and at 3months. In the case group, they were additionally scored at 6months. At baseline and at 6months, hip X-ray assessment was also made. Ultrasound evaluation was made at each visit. In the case group, 15 patients were enrolled and 28 hip joints were injected. The control group consisted of 17 hip OA patients. In the case group, pain evaluated by VAS score and WOMAC score were significantly and progressively decreased (p < 0.0001) from baseline up to 3 and 6months, respectively. Indeed, the case group showed a significantly lower NSAIDs/pain killer median intake at 3months from baseline (p < 0.05). Our data suggest that HA-USGIAI may be an effective and safe treatment for moderate hip OA with short- and medium-term benefits. Key Points • US hip evaluation before interventional maneuvers may identify capsular distension suggestive for concomitant septic involvement, microcrystal arthropathy or incipient hip osteonecrosis. • USGIAI may be fundamental to achieve an efficacious and safe injection. • HA-USGIAI may be an effective and safe treatment for moderate hip OA with short- and medium-term benefits.

Does capsular distension and a short period of countertraction improve outcome following manipulation under anesthesia for the treatment of primary adhesive capsulitis of the glenohumeral joint?

Despite the fact that primary adhesive capsulitis of the glenohumeral joint is often considered a self-limiting condition, not all patients make a full recovery. Manipulation under anesthesia (MUA) is performed to forcibly rupture the contracted capsule in a controlled manner. However, the technique, timing, and use of additional injections are often debated. In this study, we report the outcomes following the addition of capsular distension and countertraction to MUA as a treatment for adhesive capsulitis. We performed a retrospective case-cohort study comparing 3 groups: Group 1 underwent MUA alone (n = 54); group 2, MUA with capsular distension (n = 114); and group 3, MUA with capsular distension and countertraction (n = 167). The re-MUA rate, Constant-Murley shoulder (CMS) score, and visual analog scale (VAS) score (for pain) were measured after 6 weeks and 6 months. The re-MUA rate fell with the addition of both capsular distension and countertraction: 63% in group 1, 39% in group 2, and 18% in group 3. Patients in group 3 recorded the greatest improvement in the CMS score after 6 weeks (+90% vs. +68% in group 2 and +58% in group 1), with all groups showing improvements compared with before treatment. The only independent risk factor identified for re-MUA was smoking. If a second MUA was performed, the CMS (+67%) and VAS (+61%) scores improved, but at 6 months, the CMS score (74.57 ± 7.6 vs. 83.30 ± 5.5) and VAS score (10.57 ± 1.8 vs. 12.96 ± 1.5) remained inferior to those of patients who only needed a single MUA. MUA combined with capsular distension and countertraction reduces the need for a second MUA and results in a faster improvement in functional outcome (CMS score) and reduction of pain (VAS score) compared with MUA alone or MUA with capsular distension. The results of this case-cohort study are of clinical relevance because they show that the efficacy of an MUA can be improved through relatively simple adaptations of the treatment protocol.