Flexor Digitorum Profundus Avulsion With Distal Interphalangeal Joint Dorsal Dislocation: A Case Report.

An irreducible closed dorsal dislocation of the distal interphalangeal (DIP) joint of the finger is a rare injury, often caused by factors such as the interposition of the volar plate, entrapment of the flexor digitorum profundus (FDP) tendon behind the head of the middle phalanx, or the buttonholing of the middle phalanx head through the volar plate or flexor tendon. This case report presents a rare instance of FDP avulsion combined with dorsal dislocation of the DIP joint in a 42-year-old male who sustained trauma to his right middle finger during a workplace accident. Clinical examination and imaging confirmed FDP avulsion along with dorsal dislocation of the DIP joint. Urgent surgical intervention was performed, successfully reducing and repairing the FDP tendon and stabilizing the DIP joint. Subsequent follow-up showed satisfactory functional outcomes. This case highlights the importance of prompt diagnosis and appropriate surgical management in treating complex finger injuries.

Utility of Orthodontic Braces as Flexible Splint for Stabilizing an Avulsed Tooth: A Case Report.

Dental avulsion is a traumatic dental injury with complete displacement of the tooth outside the bony socket. Both primary and permanent teeth are predisposed to such traumatic incidents. The most effective treatment in such cases is tooth replantation. Additionally, a short-term flexible splint is needed to stabilize the avulsed/replanted tooth. This case report describes orthodontic braces as a standardized flexible splint option for the treatment of tooth avulsion. Herein, the case of a 9-year-old female patient who presented to a private dental clinic with an avulsed upper left central incisor, 1 h after the accident has occurred. Once the tooth was replanted with all the necessary precautions, orthodontic braces and wire were utilized to stabilize the tooth. Most dental splints are custom-made, requiring thorough professional knowledge and expertise for their fabrication and placement. The protocol described in this report is aimed at easing tooth stabilization using materials within the scope of a basic dental setup consultation room.

Ankle syndesmotic ligaments avulsion fractures: incidence in adult population.

BACKGROUND: Distal tibiofibular syndesmosis injury is often associated with ankle fractures in adults. Injuries to the anterior/posterior inferior tibiofibular ligament (AITFL/PITFL) may present as a mid-substance tear or as an avulsion at insertion. Tibial and fibular avulsion of the AITFL is known as Tillaux fracture and Wagstaffe fracture, respectively. Tibial avulsion of the PITFL is referred to as a Volkmann fracture, and fibular avulsion of the PITFL is still undefined and has not been reported yet. The aim of this study is to summarize the incidence of these four avulsions, that is, tibial and fibular avulsions of the AITFL and PITFL. METHOD: Radiography and computed tomography (CT) imaging data of all adult patients with ankle fractures treated at our hospital between November 2010 and March 2023 were retrospectively analyzed. All ankle fractures were classified according to the Weber-AO and Lauge-Hansen classification systems by two experienced radiologists and two surgeons. The incidence of the four avulsions of the AITFL/PITFL was determined. RESULTS: In total, 1,770 ankle fractures in 1,758 patients were included in this study. The total incidence of avulsions at the four insertions of the AITFL/PITFL (occurring at one, two, or three insertions) was found to be 26.3% (465/1,770). Volkmann fracture had the highest incidence (19.9%, 353/1,770), and it was followed by Tillaux fracture (5.3%, 93/1,770), Wagstaffe fracture (3.3%, 59/1,770), and fibular avulsion of the PITFL (0.5%, 8/1,770). It is noteworthy that fibular avulsion of the PITFL has been reported here for the first time. The incidence of avulsion at one insertion was 23.6% (418/1770) and 2.7% (47/1770) at multiple insertions. CONCLUSION: In adult ankle fractures, avulsion occurs at the four insertions of the AITFL/PITFL in more than 25% of patients. The tibial insertion of the PITFL had the highest incidence of avulsion among the four insertions, while the fibular insertion of the PITFL had the lowest. The four types of avulsions can be isolated or in association with other avulsions. Future research studies on these four types of avulsion fractures would help in accurate diagnosis, decision-making and treatment of ankle Syndesmosis injuries. LEVEL OF EVIDENCE: Level III, retrospective cohort study.

A suspensory fixation technique for calcaneal tuberosity avulsion fractures using the TightRope Attachable Button System.

Displaced avulsion fractures of the calcaneal tuberosity generally occur as a result of osteoporotic insufficiency or high-energy injuries. Conventional methods of fixation may be complicated by wound breakdown, metalwork failure, or symptomatic hardware. This is particularly relevant in elderly patients and those with comorbidities, including osteoporosis or diabetes. We describe an innovative technique using the TightRope Attachable Button System (ABS; Arthrex, Naples, FL, USA), adapted from suspensory cortical fixation in anterior cruciate ligament reconstruction, to treat displaced Beavis type II 'beak' calcaneal fractures in such patients. We present the case of a 67 year old female with multiple comorbidities, who successfully underwent this procedure, with no complications at 4 years follow-up.

Prevalence of presumed endplate junction failure at the lumbosacral intervertebral junction in dogs on computed tomography.

Lumbosacral intervertebral disc herniation (IVDH) is a common cause of lower back pain in dogs and humans. In humans, the vertebral endplate to annulus fibrosus (AF) attachment was implicated as an alternative failure site besides rupture through the dorsal AF (AFF). Endplate junction failure (EPJF) is characterized by IVDH, accompanied by endplate irregularities (type A), rim avulsions (type B), or larger bony avulsions on one (type C) or both endplates (type D), associated with an adjacent endplate defect. This retrospective study reports the CT prevalence of presumed EPJF in dogs and its associations with signalment and other lumbosacral CT abnormalities. CT scans, including the lumbosacral spine of dogs obtained at two institutions, were assessed, yielding 324 scans. Presumed EPJF was found in 69 dogs (21%) and AFF in 68 dogs (21%), commonly at the caudal endplate of the last lumbar vertebra (71%). The remaining 187 dogs did not show presumed EPJF or AFF. Presumed EPJF type A occurred in 49/69, type B in 19/69, and type C in 1/69 dogs. Univariable logistic regression showed that presumed EPJF was associated with significantly higher IVDH grades than AFF. In the multiple regression model, presumed EPJF and AFF remained associated with increasing age and spondylosis deformans. Presumed EPJF was associated with vertebral endplate sclerosis and AFF with zygapophyseal joint osteoarthritis. In conclusion, presumed EPJF was observed on CT in 21% of dogs with lumbosacral IVDH. Prospective studies correlating EPJF on CT with clinical, surgical, and histopathological findings are needed for a better understanding of the underlying pathology and clinical relevance.

Ferroptosis Regulated by 5-HT3a Receptor via Calcium/Calmodulin Signaling Contributes to Neuropathic Pain in Brachial Plexus Avulsion Rat Models.

Neuropathic pain is a prevalent complication following brachial plexus avulsion (BPA). Ferroptosis has been implicated in various nervous system disorders. However, the association between ferroptosis and neuropathic pain induced by BPA remains unclear. This study aimed to investigate the role of ferroptosis in BPA-induced neuropathic pain. A rat model of neuropathic pain was established via BPA induction. Pain thresholds of rats were measured after BPA surgery and intraperitoneal injection of Fer-1. On day 14 postsurgery, spinal dorsal horn (SDH) samples were collected for Western blotting, biochemical analysis, and immunohistochemistry to analyze the expression and distribution of ferroptosis-related markers. The relationships among 5-HT3a receptor, calcium/calmodulin (CaM) pathway, and ferroptosis were assessed via Western blotting, biochemical analysis, and lipid peroxidation assays, including iron and calcium content, reactive oxygen species, glutathione peroxidase 4 (GPX4), ACSL, and CaM expression. BPA-induced neuropathic pain was associated with iron accumulation, increased lipid peroxidation, dysregulated expression of Acyl-CoA synthetase long-chain family member 4, and GPX4, and changes in transferrin receptor, divalent metal transporter 1, and ferroportin-1 (FPN1). Intraperitoneal administration of Fer-1 reversed all of these alterations and mitigated mechanical and cold hypersensitivity. Inhibition of the 5-HT3a receptor reduced the extent of ferroptosis. Furthermore, the 5-HT3a receptor can regulate the calcium/CaM pathway via L-type calcium channels (LTCCs), and blocking LTCCs with nifedipine also alleviated ferroptosis in the SDH of BPA rats. Taken together, in rats with BPA, the development of neuropathic pain involves ferroptosis, which is regulated by the 5-HT3a receptor through the LTCCs and the calcium/CaM signaling pathway in the SDH.

Outcome of regenerative endodontic procedures in delayed replanted immature permanent teeth with apical periodontitis: A retrospective study.

BACKGROUND: Regenerative endodontic procedures (REPs) is effective for treating young permanent teeth with pulp necrosis. However, its efficacy on delayed replanted avulsed teeth is unclear. AIM: This retrospective study aimed to assess the efficacy of REPs in treating delayed replanted immature permanent teeth with apical periodontitis. DESIGN: Avulsed teeth receiving REPs were systematically screened based on predetermined criteria. This study assessed the REP outcomes, postoperative periodontal healing, and overall treatment efficacy. Samples were grouped by REP outcomes and root development stage, with Fisher's exact tests used to compare outcomes among different groups. RESULTS: Among the included 17 teeth, 47.1% exhibited successful REPs and periodontal healing. Another 47.1%, due to replacement resorption or REP failure, were categorized as tooth survival. Healing of periapical lesions was observed in 88.2% of the cases, but only 41.2% demonstrated continued root development. Although differences were not significant (p = 0.05), teeth with continued root development had a higher rate of functional healing (85.7%) compared to those without (30%). CONCLUSION: Within the limitations of this study, REPs presented reliable outcomes for treating delayed replanted immature permanent teeth with apical periodontitis mainly in periapical lesion healing. Teeth with continued root development after REPs exhibited a higher rate of functional healing. Further investigation is required to explore potential synergies between REP outcomes and periodontal healing.

Stress Avulsion Fracture of the Patellar Tendon Following Open Reduction and Internal Fixation of a Transverse Patella Fracture With Cannulated Screws.

A stress-avulsion fracture of the inferior pole of the patella is rare. We report a case of a 65-year-old woman who underwent open reduction and internal fixation for a transverse fracture of the patella using cannulated screws inserted from the inferior pole of the patella. Subsequently, the patient developed an avulsion fracture of the inferior pole of the patella due to a stress riser from the prominent screw head. The avulsion fracture was treated with open repair and augmentation using a cerclage wire, and the stress riser was eliminated by burying the screw head into the bone. The outcomes were satisfactory. Preventing implant-related stress risers during internal fixation of fractures requires diligent surgical techniques.

Posterior Cruciate Ligament Avulsion Fracture of Tibia: Fixation with Screw and Augmentation Using Ethibond Suture for Improved Clinical Outcomes.

Introduction: The posterior cruciate ligament (PCL) is a vital structure in knee biomechanics, and its avulsion fractures present a unique challenge. This prospective cohort study was conducted at Grant Government Medical College and JJ Hospital, Mumbai, aimed to assess the clinical outcomes of open reduction and internal fixation (ORIF) utilizing cancellous screws and ethibond suture augmentation for PCL avulsion fractures. PCL avulsion fractures often result from traumatic incidents, such as road traffic accidents, and are associated with complications if left untreated. Materials and Methods: Patients aged 20-45 years with isolated PCL avulsion fractures, confirmed by clinical and radiological assessments, were included. Seven eligible patients underwent ORIF, and outcomes were evaluated through clinical assessments, radiological imaging, and the Lysholm knee scoring system. Follow-ups were conducted for a mean time of 13.2 months, assessing stability, range of motion, and complications. Results: The study demonstrated a mean post-operative Lysholm score of 93.8, significantly improved from the pre-operative score of 49.6. Post-operative knee flexion averaged 125.2°. Fracture healing was observed in all cases, and complications were minimal. The study provides evidence of the effectiveness of ORIF with ethibond suture augmentation for PCL avulsion fractures. Conclusion: The study concludes that the proposed surgical technique yields positive outcomes, including enhanced knee functionality, successful fracture healing, and minimal complications. This approach, combining cancellous screws and ethibond suture augmentation, presents a promising option for the management of PCL avulsion fractures, contributing to the diverse landscape of effective treatment modalities.

Tension Band Wiring in the Treatment of Extensor Carpi Radialis Longus Avulsion Fractures at the Base of the Second Metacarpal: A Case Report and Literature Review.

An avulsion fracture of the second metacarpal is a rare injury often resulting from resisted wrist hyperflexion, and there is no consensus on the optimal treatment. A review of the literature reveals 20 articles documenting 25 cases of similar injuries. Of these, nine cases were initially managed conservatively, while 16 were treated surgically. Among the nine conservative cases, five (55.6%) required late surgical intervention due to unsuccessful initial treatment. In contrast, none of the 16 surgically treated cases reported poor clinical outcomes. This case involves a 23-year-old male with an extensor carpi radialis longus avulsion fracture at the base of the second metacarpal, treated with open reduction and tension band wiring. The patient achieved favorable postoperative results. In other reported cases, fixation methods included Kirschner wires, screws, or miniplates. To our knowledge, this is the first case using tension band wiring for this type of injury.

Successful Non-operative Management of Unstable Jefferson Fracture With Transverse Atlantal Ligament Injury (Dickman Type I and IIb) in a Pediatric Patient: A Case Report.

This report presents the case of a Jefferson fracture (posterior arch fracture) associated with an unstable avulsion fracture and substance injury of the transverse atlantal ligament (Dickman type I and IIb) in an eight-year-old male child. The patient was managed conservatively with external immobilization using a halo vest and a sternal occipital mandibular immobilizer (SOMI) brace and subsequently made a full recovery. Computed tomography (CT) and dynamic cervical spine radiographs at the final follow-up demonstrated solid reattachment of the avulsed bony fragment of the transverse atlantal ligament and no instability at the C1/2 level. This case report adds to the literature on the optimal non-operative management of the rare pediatric unstable C1-C2 trauma.

Lower lip avulsion: Surgery and management using stem cell metabolites preparation in a domestic cat.

Background: Lower lip avulsion is a separation between the lip and the associated soft tissue from the mandible. The degree of these types of injuries varies and heavily affects the outcome of the case. Case Description: This study reported an extensive lower lip avulsion managed by surgery and stem cell metabolite preparation. A one year and nine month-old domestic cats was referred for lower lip avulsion surgery to the Veterinary Teaching Hospital Airlangga University. Owing to the limited amount of tissue, immediate successful results cannot be achieved after the first surgery. Furthermore, tissue necrosis and lack of physical restraint to the cat at home contributed to the delayed union between the soft tissue and mandible, resulting in repeated surgery. Stem cell metabolites preparation was applied at the surgical site and was incorporated into the therapy to support tissue growth. Conclusion: The combination of surgical treatment and stem cell metabolite preparation resulted in good wound healing in the present case.

An unusual Ogden type V tibial tubercle avulsion fracture: a case report and literature review.

BACKGROUND: Ogden type V tibial tubercle avulsion fracture is an unusual type of physial injury. Thus, little is known about its mechanism of injury and treatment. The type of osteosynthesis is variable and depends on the experience of the surgeon. We commonly used cancellous screws fixation combined with tension band wiring for displaced fracture of the anterior tibial tuberosity. CASE PRESENTATION: The present manuscript describes a case of a Han nationality 13-year-old boy who presented with severe pain of the left knee, which began after landing following a high jump. He had no significant past medical history apart from a high body mass index of 30.3. Radiographs revealed that he had an unusual Ogden type V tibial tubercle avulsion fracture. He was treated by open reduction and combined fixation with cannulated screws and tension-band wiring. After 3 months, the fracture healed without any complications or knee symptoms with full range of motion. He underwent reoperation for symptomatic hardware, which was removed at 5 months after initial surgery, and returned to his prior level of sporting activity at 1 year follow-up. CONCLUSION: Our case suggests that excellent functional outcome could be achievable by open reduction with the combination of internal fixation and tension-band wiring for Ogden type V tibial tubercle avulsion fracture. This type of osteosynthesis could not only achieve anatomical reduction and stable fixation for such fractures, but also avoid further damage to the proximal tibial epiphysis, which prevents serious complications, such difference in leg length.

From Concept to Clinical Practice: A Review of Autotransplantation Techniques and Their Impact on Dentistry.

The goal of autotransplantation of teeth (ATT) is to provide the patient with a functioning tooth to replace a missing one. In dentistry, this surgery has gained significant approval and popularity; nonetheless, there is still a shortage of thorough evidence about its long-term effects. Tooth transplantation has a rich historical pedigree, and the main factors determining its success are the extra-alveolar period, proper splinting, periodontal ligament treatment, and root growth stage. With its high reported survival rate, autotransplantation is a potential therapeutic option, especially when it comes to replacing damaged anterior maxillary teeth. Collaboration between orthodontists, pediatric dentists, restorative dentists, and oral and maxillofacial surgeons is necessary for the successful execution of this treatment. The extra-alveolar period, proper splinting, periodontal ligament treatment, and the stage of root growth are the main factors that determine success. Although there are many applications for autotransplantation, a good functional and cosmetic result depends on careful patient selection and a proper surgical approach. It is not practical to replace lost teeth in children and teenagers with bridgework or implants as this may interfere with the proper development of the alveolar process and other facial bones. As such, these techniques are not recommended. Alternatively, implanting a tooth from the same person without fully forming its roots might be a good substitute. This method promotes improved mastication, speech, dentofacial development, aesthetics, and arch form integrity by enabling unhindered alveolar growth and root development. Although tooth autotransplantation has not been widely used in clinical dentistry, it is currently seen as a viable option that can replace traditional prosthetics and implant rehabilitation in both financial and medical terms. This review examines several benefits, possible iatrogenic harms, side effects, and important variables that might affect the result of the transplant, in addition to suitable criteria for the best-case selection. It also offers recommendations based on the literature.

Spontaneous avulsion of left internal mammary artery graft a complication of coronary artery bypass surgery: case report and review of the literature.

BACKGROUND: Coronary artery bypass grafting (CABG) surgery is a common procedure for managing multi-vessel coronary artery disease to revascularize the myocardium. Among the various conduits used, the left internal mammary artery (LIMA) is preferred due to its better long-term patency rate. However, CABG procedures involving LIMA may result in rare but serious complications, such as avulsion of the LIMA post-CABG, which leads to disruption of blood flow to the myocardium and the development of fatal cardiac tamponade. CASE PRESENTATION: We hereby present a unique case of spontaneous avulsion of a LIMA graft to the left anterior descending artery (LAD) away from the site of anastomosis, twenty-four hours following CABG surgery in a 67-year-old male patient. Emergency re-exploration and repair of the LIMA with interposition vein graft were performed and resulted in successful stabilization of the patient's critical condition. However, this was followed by a complicated recovery period involving atrial fibrillation, acute kidney injury, and wound infection. CONCLUSION: Avulsion of LIMA graft following CABG is rare, yet a fatal complication that requires high clinical suspicion and prompt management. Avulsion has been reported a few times in literature following both minimal invasive and conventional CABG. Understanding the etiology, clinical presentation, and management of this complication is crucial to avoid catastrophic outcomes.

Partial weight-bearing and range of motion limitation significantly reduce the loads at medial meniscus posterior root repair sutures in a cadaveric biomechanical model.

PURPOSE: The aim of this study was to investigate the influence of medial meniscus posterior root avulsion (MMPRA) before and after surgical treatment on the biomechanics of the knee joint, including suture repair forces during daily and crutch-assisted gait movements. METHODS: MMPRA were investigated in eight human cadaver knee joint specimens by a dynamic knee joint simulator with daily (normal gait, gait with additional rotational movement, standing up, sitting down) and rehabilitation-associated movements (crutch-assisted gait with limited flexion range of motion [30°] and 30% [toe-touch weight-bearing, TTWB] and 50% of body weight [partial weight-bearing, PWB]) with simulated physiologic muscle forces. Each specimen was tested in intact, torn and repaired (transtibial suture) state. The biomechanical parameters were: medial mean contact pressure and area, knee joint kinematics, medial displacement of the posterior meniscus horn and loading on the anchoring suture. RESULTS: Significant reduction of the contact area due to the avulsion was observed in all movements except for PWB and sitting down. MMPRA repair significantly increased the contact areas during all movements, bringing them to levels statistically indistinguishable from the initial state. MMPRA resulted in a medial displacement up to 12.8 mm (sitting down) and could be reattached with a residual displacement ranging from 0.7 mm (PWB) to 5.7 mm (standing up), all significantly (p < 0.001) reduced compared to the torn state. The mean peak anchoring suture load increased from TTWB (77 N), PWB (91 N) to normal gait (194 N), gait rotation (207 N), sitting (201 N; p < 0.01) and to standing up (232 N; p = 0.03). CONCLUSION: Surgical treatment of MMPRA allows restoration of physiological knee joint biomechanics. Crutch-assisted movements reduce the loading of the repair suture, thus likewise the risk for failure. From a biomechanical point of view, crutch-assisted movements are recommended for the early rehabilitation phase after MMPRA repair. LEVEL OF EVIDENCE: Level V.

Successful Replantation of an Anterior Tooth in an 11-Year-Old Child: A Case Report.

Avulsion occurs when the tooth is completely knocked out of its alveolar socket. The maxillary central incisors are more vulnerable to avulsion due to their prominent position in the dental arch. This case report describes a successful permanent maxillary incisor replantation in an 11-year-old child. The replanted tooth was stabilized in the socket using orthodontic wire, followed by root canal treatment and composite restoration within a two-week interval. Clinical and radiographic follow-up was done at one and six months. Successful management of an avulsed tooth requires educating the patient about different storage mediums and emergency management after an avulsion. This case report concluded that the avulsed tooth result is highly dependent on the patient's understanding of avulsion and how to approach it.

Successful management of severe scalp avulsion injury: a case report and review of surgical interventions.

Scalp avulsion injuries caused by machinery present substantial challenges necessitating urgent medical intervention. A 30-year-old female suffered near-complete scalp avulsion from entanglement in agricultural machinery and underwent surgical repair with a latissimus dorsi free flap and split-thickness skin graft. Free flap techniques offer reliable wound closure but may lead to cosmetic concerns. Safety measures in high-risk environments are crucial to prevent such incidents.

Permanent tooth avulsions: A retrospective analysis of the demographics and aetiology of cases at a tertiary hospital in Sydney, Australia.

This retrospective analysis reviewed the demographics of patients sustaining dental avulsion injuries at a tertiary dental hospital in Sydney, Australia. Data were extracted from dental records of patients who presented with avulsed permanent anterior teeth and were treated between 1 January 2001 and 30 June 2021. Demographic, clinical and radiographic data from 91 patients with 117 avulsed permanent anterior teeth were available for analysis. The median age of the patients was 12 years (IQR 9.0-17.0). Males accounted for 68.4% of avulsion injuries. Non-organised sports were the most common cause of injury (42.7%). Maxillary central incisors were the most frequently avulsed tooth (83.3%). Peak prevalence of injuries occurred on the weekend. The findings from this study may reflect regional factors such as climate and participation in sport. Anticipatory guidance should be provided to patients at elevated risk of dental avulsion.