Lateral Band Subluxation: An Unusual Case of Pseudotrigger.
Ontology highlight
ABSTRACT:
SUBMITTER: Lim R
PROVIDER: S-EPMC4461644 | biostudies-literature | 2015 Jun
REPOSITORIES: biostudies-literature
Publications
Lateral Band Subluxation: An Unusual Case of Pseudotrigger.
Journal of hand and microsurgery 20141012 1
Similar Datasets
Project description:Medial patellar subluxation (MPS) is a disabling, often iatrogenic patellar instability due to previous lateral release for patellar instability. Lateral release destabilizes the patella on the lateral side, worsening the initial lateral instability and causing MPS. MPS is poorly recognized and may range from subluxation to true dislocation. This report describes a technique developed in response to episodes of medial and lateral patellar subluxation after failed lateral release for patellar instability. The technique uses a graft that extends from the medial patellofemoral ligament origin through the quadriceps tendon to the lateral epicondyle, thereby reconstructing both the medial and lateral patellofemoral ligaments, as well as providing simultaneous stability to both the medial and lateral sides of the patella.
| S-EPMC4044543 | biostudies-literature
Project description:IntroductionAtlantoaxial rotatory subluxation (AARS) is not uncommon in paediatric emergencies, however, the complications might be fatal. Long onset before presentation is correlated with higher recurrence and persistent deformity. There is no consensus on the treatment of AARS yet. Selected patients may benefit from conservative approaches; however, retention might be difficult, and subluxation may recur.Presentation of caseA 6-year-old boy was admitted to our institution with AARS for three months before admission. Typical Cock-Robin position was observed. Computed tomography (CT) indicated AARS Fielding and Hawkins grade III. We treated the case conservatively by closed reduction and cervical traction using Gardner-Wells tongs. However, poor compliance resulted recurrence of subluxation, so we decided to fuse the atlantoaxial joint using transarticular screws, posterior wiring, and autologous bone grafting. Posterior fusion resulted in a satisfactory outcome, in which the wound healed accordingly. Six months of follow up examination revealed normal motoric and sensory function. The patient was able to perform daily activities with no significant issues.DiscussionPatients with fixed deformity of more than three weeks have a higher rate for recurrence or persistent deformity, as reduction is harder and difficult to maintain. The use of posterior wiring alone is limited in maintaining reduction, while using transarticular screws alone is considered better in maintaining reduction; however, not providing it.ConclusionThe use of posterior cervical fusion using C-wire, transarticular screws, and autologous bone grafting may be applied in recurrent case of AARS to ensure adequate reduction and fixation of the atlantoaxial joint.
| S-EPMC7198983 | biostudies-literature
Project description:BackgroundLateral talar subluxation (LTS) was introduced as a measurement tool for evaluating isolated Weber B ankle fractures, with LTS >4 mm on gravity stress (GS) radiographs possibly indicating need for surgery. This study reviews LTS measurements in nonoperatively managed isolated Weber B fibula fractures to further investigate the validity of this previously stated cutoff.MethodsThe senior authors previously reported outcomes of a novel algorithm for nonoperative management of isolated Weber B ankle fractures. Outcome scores reported include American Orthopaedic Foot & Ankle Society (AOFAS) hindfoot, Olerud-Molander (OMA), Foot and Ankle Ability Measure for activities of daily living (FAAM/ADL), and visual analog scale (VAS) scores. All patients achieved union of their fracture. LTS was measured on GS radiographs of both injured and contralateral uninjured extremities.ResultsForty-two patients were included with minimum 1-year follow-up. Average age was 49 years (range 19-72). Mean measurements on injury GS radiographs were as follows: medial clear space (MCS) 4.45 mm (SD = 0.93), superior clear space (SCS) 3.46 mm (SD = 0.70), and LTS 2.33 mm (SD = 1.57, range 0-4.7 mm), with 35 (83.3%) patients having injury LTS ≤4 mm. Mean measurements on contralateral (uninjured) GS radiographs were as follows: MCS 3.39 mm (SD = 0.63), SCS 3.15 mm (SD = 0.50), and LTS 1.30 mm (SD = 1.28, range 0-4.8 mm). There was no statistically significant difference in all outcome measures based on amount of LTS (<2 mm, 2-4 mm, >4 mm).ConclusionMost patients had injury LTS ≤4 mm, although those with LTS >4 mm had excellent outcome scores. LTS measurements on normal ankles reveal a large range. LTS may be a useful adjunct in evaluating isolated Weber B ankle fractures but the 4-mm cutoff may not be entirely reliable. Further studies are required to validate LTS as a decision-making tool.Level of evidenceLevel IV, case series.
| S-EPMC10363887 | biostudies-literature
Project description:The posterolateral subluxation exposure of the elbow is a useful surgical technique for addressing complex radial head or capitellar fractures. It can be modified to allow for exposure of the distal humerus or elbow in more complex cases including those resulting in the terrible triad injury. In this approach, dissection to the radiocapitellar joint via a posterior incision provides great exposure and allows for reduction and internal fixation or placement of a radial head prosthesis. The authors in this video presentation demonstrate the posterolateral approach for radial head fractures and radial head replacement along with some technical caveats.
| S-EPMC3840754 | biostudies-literature
Project description:Recurrent subluxation of the lateral meniscus is characterized by episodes of mechanical locking of the knee joint. To completely preclude the posterior segment of the lateral meniscus from undergoing anterior dislocation during deep knee flexion, the structures to which it is attached need to be relatively taut. The posterosuperior popliteomeniscal fascicle retains its tension during deep knee flexion; therefore, reconstruction of the posterosuperior and anteroinferior popliteomeniscal fascicles was performed with an autograft harvested from the iliotibial band. This technique provides stabilization of the posterior segment of the lateral meniscus during deep knee flexion without interfering with the normal movement of the lateral meniscus throughout the range of motion of the knee joint.
| S-EPMC5442319 | biostudies-literature
Project description:IntroductionIn children, the pelvis contains a large amount of cartilage components; therefore, when traumatic hip dislocation spontaneously reduces, it can be impossible to see on X-ray or computed tomography (CT) images in some cases, which can delay its detection.Case presentationWe report the case of a 10-year-old boy who was injured by being hit by a car while walking. Upon diagnosis of pelvic ring fracture, the patient received conservative treatment. Seven months after injury, the patient was referred to our department with the chief complaint of limping.DiagnosisMarked limitation was observed in the left hip with extension of -40°, abduction of 10°, and internal rotation of 20°. X-ray revealed narrowing of the left hip joint space, with deformity of the femoral head, obturator foramen narrowing, and the break in the Shenton line. CT revealed proximal dislocation of the posterior acetabular wall and posterior subluxation of the femoral head. Magnetic resonance imaging (MRI) revealed necrosis of the femoral head.InterventionOperation was performed with soft tissue dissection, varus-extension-internal rotation femoral osteotomy, greater trochanteric epiphysiodesis, and pelvic osteotomy (incomplete periacetabular osteotomy: IPO). After operation, complete paralysis of the sciatic nerve was observed.OutcomesAt 1 year after operation, the patient's limited range of motion (ROM) and femoral head necrosis had improved. The sciatic nerve paralysis had fully recovered.ConclusionIf hip extension, abduction, and internal rotation are limited and X-ray reveals a break in the Shenton line., subluxation of the hip should be suspected.
| S-EPMC7415628 | biostudies-literature
Project description:Laparoscopic adjustable gastric banding (LAGB) is the third most popular bariatric procedure. Despite its reversibility and minimal invasiveness, band infection affects 1.2% of patients. We present a case of a 25-year-old, obese woman who was experiencing malaise and feverishness 3 years after gastric band placement. Due to port site infection the port was removed, which did not improve the patient's condition. After 2 years the band was removed via laparotomy with a minor surgical site infection reported. The patient returned 2 weeks after discharge with signs of sepsis. After ruling out pulmonary causes, an exploratory laparotomy was performed, revealing granulomatous peritonitis. Standard histopathological examinations, broncho-alveolar lavage culture and DNA tests along with microbiological cultures were inconclusive. Broad-spectrum antibiotics and antifungal and antiparasitic agents did not improve the patient's condition. Mycobacterium tuberculosis DNA was discovered in a greater omentum specimen. The patient was treated with isoniazid, rifampicin, pyrazinamide and streptomycin for four months.
| S-EPMC5502335 | biostudies-other
Project description:BackgroundSnapping fingers resulting from flexor tendon tenosynovitis at the metacarpophalangeal (MCP) joint, is common. However lateral band snapping syndrome (LPSS) in the proximal interphalangeal joint (PIPJ) are extremely rare.Case presentationA 43-year-old female was diagnosed with LPSS in the PIPJ of fifth finger which was confirmed by dynamic evaluation upon ultrasound. Repair of retinacular ligament of the extensor tendon was performed. At the six-month follow up, the patient had regained full ROM with no discomfort, without evidence of recurrence.DiscussionThe diagnosis of LPSS at the PIPJ is challenging. Dynamic evaluation of the extensor tendon over PIPJ is necessary to diagnose LBSS. Ultrasound was used to assess the movement of the lateral band of the extensor tendon when the fingers flexed and to demonstrate dynamically the snapping and subluxation of the lateral band, so as to facilitate confirming the diagnosis of LBSS.ConclusionGiven clinical suspicion of LBSS, we recommend ultrasonography as a feasible tool to confirm the diagnosis. Patients with LBSS may thus benefit from prompt repair of the retinacular ligament without sequela.
| S-EPMC6717068 | biostudies-literature
Project description:Collinear facilitation of contrast sensitivity supported by lateral interactions within primary visual cortex is implicated in contour and object perception, with neural correlates in several frequency bands. Although higher component of the ERP power spectrum, the gamma-band, is postulated to reflect object representation, attention and memory, its neuronal source has been questioned, suggesting it is an artifact reflecting saccadic eye movements. Here we explored the gamma-band activity during collinear facilitation with no saccade-related confounds. We used single-trial spectral analysis of ERP in occipital channels in a time-window of nearly complete saccadic suppression and discarded sporadic trials containing saccades, in order to avoid saccadic artifacts. Although converging evidence suggests that gamma-band oscillations emerge from local excitatory-inhibitory balance involving GABAergic inhibition, here we show activity amplification during facilitatory collinear interactions, presumably dominated by excitations, in the gamma-band 150-350 milliseconds following onset of low near-threshold contrast stimulus. This result highlights the potential role of gamma-band oscillations in neuronal encoding of basic processes in visual perception. Thus, our findings suggest that gamma-band ERP spectrum analysis may serve as a useful and reliable tool for exploring basic perception, both in normal adults and in special populations.
| S-EPMC5730121 | biostudies-literature
Project description:Knowledge about internal anatomy plays a crucial role in the success of the root canal treatment. Many studies on internal anatomy have repeatedly reported that maxillary lateral incisors have only one canal. The primary aim of this article was to describe successful non-surgical retreatment of a permanent maxillary lateral incisor with two root canals and open apices. The treatment was carried out using dental operating microscope and the canals were obturated with mineral trioxide aggregate (MTA) as an apical plug. A review of literature was also conducted to evaluate the anatomical variations of maxillary lateral incisors.
| S-EPMC5527219 | biostudies-other