Management of Intraoperative Acetabular Fractures During Total Hip Arthroplasty.

Intraoperative fractures of the acetabulum are a rare but serious complication during total hip arthroplasty. Acute fractures generally require attention with plating, whereas chronic acetabular fractures may be approached with distraction, a Burch-Schneider cage, or a custom implant. It is imperative for arthroplasty surgeons to possess a thorough understanding of how to identify and manage these injuries. Collaborating with an orthopedic traumatologist for assistance with plating the anterior or posterior column, if necessary, can be invaluable. Management options encompass conservative management, revision style acetabular component, screw/plating of anterior/posterior column, and the use of a larger cup with multiple screw augmentation options.

Intraoperative Medial Instability During Total Knee Arthroplasty.

A review article summarizes the existing literature on intraoperative injury to medial collateral ligament (MCL) during total knee arthroplasty (TKA), methods of fixation, repair, and the outcomes after these injuries. The options for increasing implant constraint and repair of the MCL injury are discussed with the potential indications for each. There is also a review of risk factors for MCL injury during TKA to help anticipate potential issues preoperatively. The proper use of retractors during total knee replacement is also discussed with a focus on careful protection of the MCL during surgery.

Intraoperative Vertebral Artery Injury: Evaluation, Management, and Prevention.

Vertebral artery injury (VAI) is a serious and potentially life-threatening injury that is encountered with trauma to the cervical spine and less frequently during surgery. VAI can occur during either anterior or posterior cervical approaches or instrumentation and often involves anomalous courses of the artery. Although the incidence is rare, serious consequences including fistula formation, thrombosis, pseudoaneurysm development, cerebral ischemia, hemorrhage, and death may occur. Management of VAI can be divided into prevention, including review of preoperative imaging with knowledge of the anatomic course, utilization of surgical landmarks intraoperatively, and prompt recognition and management when injury is encountered.

Rhabdomyolysis: a review of imaging features across modalities.

This review illustrates the imaging features of rhabdomyolysis across multiple modalities and in a variety of clinical scenarios. Rhabdomyolysis is the rapid breakdown of striated muscle following severe or prolonged insult resulting in the release of myocyte constituents into circulation. In turn, patients develop characteristically elevated serum creatine kinase, positive urine myoglobin, and other serum and urine laboratory derangements. While there is a spectrum of clinical symptoms, the classic presentation has been described as muscular pain, weakness, and dark urine. This triad, however, is only seen in about 10% of patients. Thus, when there is a high clinical suspicion, imaging can be valuable in evaluating the extent of muscular involvement, subsequent complications such as myonecrosis and muscular atrophy, and other etiologies or concurrent injuries causing musculoskeletal swelling and pain, especially in the setting of trauma. Sequela of rhabdomyolysis can be limb or life-threatening including compartment syndrome, renal failure, and disseminated intravascular coagulation. MRI, CT, ultrasound, and 18-FDG PET/CT are useful modalities in the evaluation of rhabdomyolysis.

Metacarpal and Phalangeal Nonunions.

The majority of phalangeal and metacarpal fractures will proceed to union when appropriately treated. However, when a nonunion does occur, it can lead to significant functional impairment for patients and societal costs. Operative intervention is typically required in these cases, but the technique can vary depending on each individual patient scenario. This article provides an overview of nonunions of the metacarpals and phalanges in the hand, including incidence, risk factors, current treatment options, and postoperative care.

Metacarpal and Phalangeal Malunions-Is It all About the Rotation?

Metacarpal and phalanx fractures are common injuries that can often be managed nonoperatively with satisfactory clinical outcomes. However, loss of normal finger alignment including malrotation and severe angulation as well as intra-articular deformities can lead to functional deficits which may benefit from operative intervention. There are numerous surgical options to correct malunions and the correct choice varies based on the injury pattern, concurrent injuries/complications, and surgeon's preference. While these surgeries can be technically demanding, successful treatment can lead to good results with satisfactory deformity correction and patient function.

Managing the Intra-articular Distal Radius Malunion.

Intra-articular malunion of the distal radius represents a difficult clinical problem. While not all patients require treatment, corrective osteotomy may significantly improve motion, grip strength, and patient-reported outcome measures. Meticulous planning and technical precision are required with the possible need for multiple surgical approaches and both volar and dorsal implants. Arthroscopic assistance may be used to visualize the joint and articular reduction. Custom 3-dimensional planning guides are helpful in addressing complex multiplanar deformities. Regardless, intervention may not change the natural history of these injuries and post-traumatic arthritis is to be expected.

Intraoperative Imaging Challenges During Pelvic Ring Disruptions and Acetabular Fracture Surgery.

Achieving high-quality intraoperative imaging is crucial for successful pelvic ring and acetabular fracture surgery, yet it remains clinically challenging. Due to the complex anatomy of the pelvic ring and acetabulum, it is necessary to obtain multiple images oriented in different planes to reliably confirm reduction accuracy and implant positioning. Intraoperative image quality can be compromised by factors such as patient body habitus, bowel gas, abdominal packing, contrast dye, and nonstandardized language between surgeon and radiology technician. This article reviews common intraoperative imaging challenges encountered during pelvic ring and acetabular fracture surgery, while providing practical and evidence-based solutions and prevention strategies.

Open or Not Open the Retroperitoneum: A Pandora's Box for Blunt High-Grade Pancreatic Trauma?

INTRODUCTION: The optimal management strategy for pancreatic trauma remains unclear. We aimed to determine whether the initial nonoperative management (NOM) strategy based on percutaneous drainage combined with endoscopic retrograde cholangiopancreatography guided stent placement would improve outcomes for blunt high-grade pancreatic trauma. METHODS: Patients with blunt abdominal trauma who were hemodynamically stable without signs of diffuse peritonitis were consecutively enrolled at a high-volume center. The primary outcome was the occurrence of severe complications (Clavien‒Dindo classification ≥ Ⅲb) for patients who underwent initial laparotomy (LAP) versus NOM. Modified Poisson regression was used to model the primary outcome. Propensity score matching and weighting models were included into a regression-based sensitivity analysis. RESULTS: Of 119 patients with grade III/IV pancreatic trauma, 29 patients underwent initial NOM, and 90 underwent initial LAP. The incidence of severe complications in the LAP group was higher than that in the NOM group (65/90 [72.2%] versus 9/29 [31.0%], P < 0.001). In the multivariable modified Poisson regression model, the relative risk for severe complications was decreased in the NOM group (relative risk, 0.52; 95% confidence interval, 0.30-0.90; P = 0.020). The results of the sensitivity analysis were consistent with those of the multivariable analysis. The mean number of reinterventions per patient was 1.8 in the NOM group and 2.6 in the LAP group (P = 0.067). CONCLUSIONS: For blunt high-grade pancreatic trauma patients with stable hemodynamics and no diffuse peritonitis, the NOM strategy was associated with a lower risk of severe complications (Clavien‒Dindo classification ≥ Ⅲb) and did not require more invasive reintervention procedures. In high-volume centers with sufficient expertise, percutaneous drainage combined with endoscopic retrograde cholangiopancreatography guided stent placement may serve as an initial reasonable option for selected patients.

Colon Injuries and Infectious Complications in Concurrent Gunshot-Related Fractures.

INTRODUCTION: Concurrent colonic injury among patients with gunshot-related fractures presents a potential risk for infectious complications. We hypothesized that colon injuries are associated with more infectious orthopedic complications among gunshot victims with concurrent fractures. MATERIALS AND METHODS: We reviewed trauma patients arriving at our level 1 trauma center from January 1, 2019 to May 31, 2022 who suffered any gunshot-related fracture and also underwent an exploratory laparotomy. Of these patients, those with colon injuries were compared to those without colon injuries. Baseline characteristics, including antibiotic regimens, were collected in addition to outcomes of length of stay, intensive care unit admission, ventilator requirement, and development of infectious orthopedic complications. RESULTS: Overall, 56 of the 107 included patients had colon injuries. Age, sex, race/ethnicity, and Injury Severity Score were similar between groups. Of patients with colonic injuries, 16.1% received early, repeat dosing of broad-spectrum antibiotics, while only 3.9% of patients without colonic injuries received this antibiotic dosing (P = 0.04). Interestingly, only patients with colon injuries developed infectious orthopedic complications and none of the patients without colon injuries developed such complications (10.7% versus 0.0%, P = 0.03). All patients with orthopedic infections had infected pelvic fractures. Length of stay was 3 d longer in the colon injury group (P = 0.04). There was no difference in intensive care unit admission, ventilator requirement, or death. CONCLUSIONS: Concurrent colon injuries among patients with gunshot-related fractures are associated with higher risk of infectious orthopedic complications, likely from direct spread of fecal contaminant. Early, broad-spectrum antibiotics may be associated with reduced infectious orthopedic complications.

Embolization of Pseudoaneurysms is Associated With Improved Outcomes in Blunt Splenic Trauma.

INTRODUCTION: The necessity of angioembolization for all splenic pseudoaneurysms (PSAs) is unknown after blunt trauma. We compared the outcomes of patients with PSAs managed with splenic artery embolization (EMBO) versus no embolization (NO-EMBO). METHODS: We retrospectively reviewed all patients with blunt splenic trauma and PSA on initial computed tomography scan admitted to an academic, urban, Level I trauma center from 2016 to 2021. Patients who had emergent splenectomy or died before discharge were excluded. Demographics, injury and computed tomography characteristics, and details regarding angiography, if pursued, were collected. The primary outcome was failure of nonoperative management (FNOM), as defined by need for delayed splenectomy for the EMBO group versus delayed splenectomy or embolization for the NO-EMBO group. RESULTS: One hundred and fifty-six patients were in the final study population, of which 96 (61.5%) were in the EMBO group and 60 (38.5%) were in the NO-EMBO group. Patient demographics and mechanism of injury were similar between the two cohorts. The two cohorts had similar imaging findings, however, EMBO patients had more compartments with hemoperitoneum (2 versus 1, P < 0.01). Patients who underwent embolization had a lower FNOM rate (3.1% versus 13.3%, P = 0.02). CONCLUSIONS: Splenic artery embolization in the setting of PSA is associated with lower rates of FNOM versus nonembolization. It is unclear if addressing the PSA itself with embolization drives the decreased FNOM rate.

Does fear of re-injury affect the self-perceived level of lower limb functionality among soccer players with ACL reconstruction?: A cross-sectional study.

The fear of re-injury may persist after anterior cruciate ligament (ACL) reconstruction (ACLR) in professional soccer players (PSPs) even after a successful return to sport (RTS). This study aimed to determine the extent of this fear of re-injury and the impact of demographic variables and this fear of re-injury on the lower extremity functional scale (LEFS) scores in PSPs who had completed a successful RTS following ACLR. A cross-sectional survey design was used. Sixty-seven PSPs who had successfully RTS after ACLR, completed a demographic information sheet, the Athlete Fear-Avoidance Questionnaire (AFAQ), and the LEFS. The average AFAQ scores indicated low fear (M = 10.2, SD = 6.7), while high LEFS scores were observed (M = 67.1, SD = 12.4). There were significant strong negative correlations between LEFS and body mass index (BMI; rs [65] = -0.501, P = .001) and AFAQ and BMI (rs [65] = -0.378, P = .001). A hierarchical linear regression analysis found AFAQ to be a significant predictor of LEFS (b = -0.92, s.e. = 0.19, P = .001), with a total variance (adjusted R2) of 32.9%. PSPs' fear of re-injury post-ACLR significantly reduced their perceived levels of lower limb functionality. This study highlights the need to further explore and develop strategies to manage PSP fear of re-injury to improve sports-related performance post-ACLR.

Traumatic brain injuries caused by knockout in Japanese amateur boxers: A questionnaire-based survey.

The aim of the present study is to conduct a trauma and disability survey in amateur boxers and show the actual conditions of injuries based on the current situations. We have obtained 663 valid responses from male and female boxers. In the questionnaire survey who was carried out on a Web questionnaire form. The questions involve that Face Sheet (gender, height, weight, athletic experience, etc.) and prepared 10 questions about trauma and impairment, 7 questions with concussion or damage on head. and, set 11 self-evaluations, which the boxers assessed their boxing skills. The subjects include amateur boxers who are all high school students (15 years old) and retired boxers. We had analyzed relation between the skills and the injuries. And, main outcome was that make a measure to setting whether or not questionnaires have been knockout (KO) as a variable, we applied a method of multiple logistic regression analysis. Moreover, as for the group who got KO in the past, we have also applied multiple regression analysis by using stepwise regression to factors affecting numbers of symptoms. The number of hits they experienced was smaller in international tournament matches, and the odds rate for KO was 0.669. And, KO experience group was compared with non-KO experience group, and the factors influencing the number of severity symptoms were examined. As a result, 2 factors were selected what "Seriousness in practice" and "Fighting spirit in games". It might be possible that the relation between the experience of being KO and self-assessment of boxing performance.

Injectable tissue prosthesis for instantaneous closed-loop rehabilitation.

To construct tissue-like prosthetic materials, soft electroactive hydrogels are the best candidate owing to their physiological mechanical modulus, low electrical resistance and bidirectional stimulating and recording capability of electrophysiological signals from biological tissues1,2. Nevertheless, until now, bioelectronic devices for such prostheses have been patch type, which cannot be applied onto rough, narrow or deep tissue surfaces3-5. Here we present an injectable tissue prosthesis with instantaneous bidirectional electrical conduction in the neuromuscular system. The soft and injectable prosthesis is composed of a biocompatible hydrogel with unique phenylborate-mediated multiple crosslinking, such as irreversible yet freely rearrangeable biphenyl bonds and reversible coordinate bonds with conductive gold nanoparticles formed in situ by cross-coupling. Closed-loop robot-assisted rehabilitation by injecting this prosthetic material is successfully demonstrated in the early stage of severe muscle injury in rats, and accelerated tissue repair is achieved in the later stage.

Deep learning system for automated detection of posterior ligamentous complex injury in patients with thoracolumbar fracture on MRI.

This study aimed to develop a deep learning (DL) algorithm for automated detection and localization of posterior ligamentous complex (PLC) injury in patients with acute thoracolumbar (TL) fracture on magnetic resonance imaging (MRI) and evaluate its diagnostic performance. In this retrospective multicenter study, using midline sagittal T2-weighted image with fracture (± PLC injury), a training dataset and internal and external validation sets of 300, 100, and 100 patients, were constructed with equal numbers of injured and normal PLCs. The DL algorithm was developed through two steps (Attention U-net and Inception-ResNet-V2). We evaluate the diagnostic performance for PLC injury between the DL algorithm and radiologists with different levels of experience. The area under the curves (AUCs) generated by the DL algorithm were 0.928, 0.916 for internal and external validations, and by two radiologists for observer performance test were 0.930, 0.830, respectively. Although no significant difference was found in diagnosing PLC injury between the DL algorithm and radiologists, the DL algorithm exhibited a trend of higher AUC than the radiology trainee. Notably, the radiology trainee's diagnostic performance significantly improved with DL algorithm assistance. Therefore, the DL algorithm exhibited high diagnostic performance in detecting PLC injuries in acute TL fractures.

The use of mouthguards and related factors among basketball players in Indonesia.

BACKGROUND: Basketball is a sport with a higher injury rate. Regardless, few basketball players use mouthguards, which predisposes them to injuries. The use of mouthguards (UoM) could be related to several factors. This study aims to identify factors associated with UoM and to construct a model from the factors among basketball players in Indonesia. METHODS: Through convenience sampling, a total of 286 among basketball players in Indonesia was included in this cross-sectional study. These participants filled out online a modified questionnaires regarding demographic and several factors related to UoM. The data was analyzed using chi-square test, independent-sample t-test, binary logistic regression, and structural equation modeling (SEM). RESULTS: There were 286 players. 127 of them were males and 159 were females. Of them, 86 (30.1%) used mouthguards. Age, duration (in year), and weekly practicing basketball (in hour) were all significantly different between mouthguards users and non-users with (p = 0.005, p = 0.036 and p = 0.035), respectively. The UoM was significantly associated with level of awareness, injury experience, social support, and oral health professional (OHP) support with (p = 0.002, p < 0.001, p < 0.001 and p < 0.001), respectively. This result was also supported by a variety of variables' ORs, which range from 1.28 to 5.97. The coefficient of determination (R2) was 0.27. CONCLUSIONS: The UoM among basketball players in Indonesia was related to several factors, including the level of knowledge, level of awareness, duration of basketball career, injury experiences, social support, and oral health professionals' support which was constructed to propose a model. The model could explain 27% of the relationship between variables and UoM among Indonesian basketball players. This model will be useful for more comprehensive initiatives to promote oral health. It might be applicable for other countries as well as other sports communities / physical activities.

Surgical outcomes of acetabular fracture of elderly patients with superomedial dome impaction.

This study aimed to investigate the outcomes of elderly acetabular fractures according to the reduction of impacted dome fragments. A retrospective cohort study was performed in two institutions. Fifty-four patients aged ≥ 60 years with acetabular fractures were enrolled. Data for dome impaction and postoperative reduction was collected. Patients were divided into the good reduction group (displacement ≤ 3 mm) and poor reduction group (displacement > 3 mm). Postoperative osteoarthritis (OA), Harris hip score (HHS), total hip arthroplasty conversion, good/poor outcomes were compared between the two groups. The good reduction group (N = 45) demonstrated a lower proportion of radiographic OA (18 vs. 77%, P = 0.001), higher HHS (82.1 vs. 68.6, P = 0.022), and higher proportion of good outcomes than the poor reduction group (N = 9) (89 vs. 22%, P < 0.001). In a subgroup analysis of the patients with dome impaction, the good reduction group had a higher proportion of good outcomes (80 vs. 20%, P = 0.031). On comparing within the good reduction group, dome impaction did not influence clinical outcomes. Elderly acetabular fractures demonstrated favorable outcomes when adequate reduction was achieved even with dome impaction. Well-reduced dome impaction could achieve satisfactory outcomes in elderly acetabular fractures.

Grade III Turf Toe Injury in a Cowboy.

Turf toe injuries are common, particularly in athletes competing on artificial turf. This debilitating injury and its associated sequelae can affect the long-term performance of athletes and others. In this case is presented an atypical cause for development of grade III turf toe. This case presents an acute injury with significant damage to the plantar first metatarsophalangeal joint, with plantar plate rupture and tibial sesamoid retraction secondary to injury involving working calves on a ranch. The anatomy, mechanism, and associated treatments are reviewed. The anatomical and functional interplay with this injury is discussed.

Fast rehab after midshaft clavicula fractures in elite cyclists and motocross riders.

Clavicle fractures are one of the most common injuries in cyclists and motocross riders. Although a fast return to sport is imperative for athletes, there is only limited literature on short-term functional outcomes after open reduction internal fixation of a clavicle fracture in a homogenous group of athletes. The aim of this study is to evaluate early (first 6 weeks) functional outcomes, return to sports and complications of elite or high-level recreational (± 8000 km per year) cyclists and motocross riders after surgical treatment of a midshaft clavicle fracture. The main study parameters were Quick Disabilities of the Arm, Shoulder and Hand (QuickDash); QuickDash sports module, pain in rest and movement (Numeric Pain Rating Score) and time to return to sports (training indoor/outdoor and competition). All parameters were taken pre-operatively and at 2/4/6/12/24 weeks post-operative. A total of 34 cyclists (6 LTFU) and 9 motocross riders (2 LTFU) were included at baseline. A significant decrease in Quick dash scores between preoperative (33 ± 1.2) and 2 weeks PO (21.5 ± 1.2) and between 2 and 4 weeks PO (16.1 ± 1.3) was found for cyclists. The QuickDash scores of the motocross riders statistically improvement from preoperative (31.6 ± 3.3) to 6 weeks PO (14.1 ± 3.3). NRS score in rest for cyclists decreased significantly from 3.6 ± 0.2 to 1.0 ± 0.2 after two weeks. After 4 weeks, 93% of cyclists and 57% of motocross riders were training outside. After 6 weeks, 56% of cyclists and 57% of motocross riders had returned to competition. Our results show that early surgical treatment of midshaft clavicle fractures in elite cyclists and motocross riders is a safe method with few complications and good functional outcomes.