Hyalinization of interosseous membrane of forearm: A case report.
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ABSTRACT:
SUBMITTER: Panigrahi R
PROVIDER: S-EPMC6823687 | biostudies-literature | 2019 Oct
REPOSITORIES: biostudies-literature
Publications
Hyalinization of interosseous membrane of forearm: A case report.
Panigrahi Ranajit R Madharia Divya D Samant Saswat S
Journal of clinical orthopaedics and trauma 20190301 Suppl 1
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Project description:Although rare, posterior interosseous nerve (PIN) palsy can occur in patients with a closed proximal forearm fracture and may present in a delayed fashion after initial trauma. In this case series, three cases of posterior interosseous nerve (PIN) injury following proximal forearm fractures are presented and discussed. Our literature search yielded six studies concerning PIN injury in radial head/neck fractures and proximal forearm fractures. Out of a total of 8 patients, 7 patients were treated non-operatively and in one patient a PIN release was performed. One patient was lost to follow-up, all other 7 patients showed successful recovery. A treatment algorithm for PIN palsy after proximal forearm fractures is provided. Based on our experience and what we found in literature, it seems safe to treat PIN palsies conservatively.
| S-EPMC6719290 | biostudies-literature
Project description:BACKGROUND:Hoffmann's syndrome is a rare form of hypothyroid myopathy. Only a few cases of fasciotomy in this setting have previously been reported. CASE PRESENTATION:A 41-year-old Caucasian man under treatment for hypothyroidism presented with acute-onset severe pain in his forearm for no obvious reason and was admitted to our emergency room. He eventually developed compartment syndrome which necessitated surgical decompression. Soon after surgery he complained of similar symptoms in his calves. By the time his hypothyroid status was confirmed, conservative treatment and orally administered levothyroxine gradually made the pain from his calves disappear, without further surgical treatment. CONCLUSION:Hoffmann's syndrome may precipitate a compartment syndrome in the absence of trauma.
| S-EPMC7050128 | biostudies-literature
Project description:PurposeThe purpose of this study was to measure distal radioulnar joint (DRUJ) dislocation and radioulnar displacement associated with sequential sectioning of the different bands of the interosseous membrane and triangular fibrocartilage complex in the simulation of a Galeazzi fracture dislocation.MethodsTwelve fresh-frozen cadaver forearms were dissected. We examined the anatomy and function of the forearm interosseous membrane. Each forearm was then mounted onto a biomechanical wrist and forearm device. In the control group, radial osteotomy was performed and the degree of DRUJ displacement with progressive loads was measured. In addition to radial osteotomy, in group 1, the central band (CB) was sectioned; in group 2, the CB, distal membranous portion of the interosseous membrane, and distal oblique bundle were sectioned; and in group 3, the CB, distal membranous portion of the interosseous membrane, distal oblique bundle, and triangular fibrocartilage complex were sectioned.ResultsThe radioulnar displacement (mm) at 25 N, 50 N, and 75 N was recorded. In group 1, applying progressive loads resulted in an average DRUJ displacement of 4.3, 5.9, and 7.9 mm, respectively. In group 2, the displacement was 5.2, 5.7, and 6.9 mm, respectively. In group 3, the displacement was 6.2, 8.1, and 9.9 mm, respectively. Our study showed a correlation between increase in the load applied to the same injury and the degree of displacement (P = .001). In group 3, the degree of DRUJ displacement was statistically increased compared to the other groups (P = .04).ConclusionsMigration of the radius under loads implies disruption of both the CB and triangular fibrocartilage complex. The distal oblique bundle by itself does not seem to have a relevant role in radioulnar displacement at the DRUJ.Clinical relevanceThis study provides insights into the interosseous membrane and stability of the DRUJ, which can contribute to a better understanding of Galeazzi fracture-dislocations.
| S-EPMC10721496 | biostudies-literature
Project description:BACKGROUND:The group of small blue round cell tumors encompasses a heterogeneous group of neoplasms characterized by primitive appearing round cells with few distinguishing histologic features. RESULTS:We report the case of a small blue round cell tumor with an EWS gene rearrangement detected by fluorescent in situ hybridization (FISH) analysis that mimicked Ewing sarcoma, but with unusual histology and immunohistochemical features. Multi-color karyotyping identified the presence of a t(2;22)(q34;q12) that was initially expected to represent a variant EWSR1-FEV translocation. After an extensive workup, the lesion is considered to represent a clear cell sarcoma harboring an EWSR1-CREB1 fusion transcript. CONCLUSIONS:This case appears to represent a rare variant of clear cell sarcoma arising in peripheral soft tissues with unusual histology and unique immunophenotype. In this circumstance, FISH for all EWSR1 translocation partners or RT- PCR for a spectrum of possible transcript variants is critically important for diagnosis, since cytogenetic analysis or clinical FISH assay using only commercial EWSR1 probes will be misleading.
| S-EPMC2908072 | biostudies-literature
Project description:The case of a eleven-year-old girl who had a fracture dislocation of the left elbow with entrapment of the ulnar nerve into the dislocated ulnar epicondyle anlage and unstable forearm fracture of the ipslateral upper extremity is described. This severe injury to the elbow and the ipsilateral forearm is termed "floating forearm" injury. The forearm was stabilized percutaneously and the elbow fracture dislocation, remaining unstable after internal fixation was treated with a pediatric elbow fixator with motion capacity.
| S-EPMC2321724 | biostudies-literature
Project description:BackgroundPosterior interosseous nerve (PIN) compression in the forearm without motor paralysis is a challenging clinical diagnosis. This retrospective study evaluated the clinical assessment, diagnostic studies, and outcomes following surgical decompression of the PIN in the forearm.MethodsThis study reviewed 182 patients' medical charts following PIN decompression between 2000 and 2020 by a single surgeon. After exclusion of combined nerve entrapments, polyneuropathy, motor palsy, or lateral epicondylitis, the study included 14 patients. Data collected included: clinical presentation and pain drawings, provocative testing, functional outcomes, and Disabilities of the Arm, Shoulder, and Hand (DASH) scores.ResultsThere were 15 PIN decompressions (14 patients, mean follow-up = 11.9 months). Clinical presentation included pain (n = 14) (proximal dorsal forearm, n = 14; distal forearm over radial sensory nerve, n = 3) and positive clinical tests (sensory collapse test over the radial tunnel, n = 8; pain with forearm pronation and compression over the radial tunnel, n = 10; Tinel sign, n = 5). Postoperatively, there were significant improvements in Visual Analog Scale pain scores (6.7 to 3.3, P = .0006), quality-of-life scores (74.7 to 32.7, P = .0001), and DASH scores (46.3 to 33.6, P = .02).ConclusionsThe PIN compression in the forearm without motor paralysis is a clinical diagnosis supported by pain drawings, pain quality, and provocative tests. Patients with persistent, therapy-resistant dorsal forearm pain should be evaluated for PIN compression. Surgical decompression provides statistically significant quantifiable improvement in pain and quality of life.
| S-EPMC10953526 | biostudies-literature
Project description:Aspergillary rhinopharyngitis in an equine patient
| PRJEB46193 | ENA
Project description:A 43-year-old man presented with weakness of the interphalageal joint of his right thumb following the use of forearm crutches. On examination he was unable to oppose his thumb and index finger to form the 'ok' sign. Nerve conduction showed anterior interosseous nerve (AIN) damage along its path to the flexor pollicis longus. The patient was managed conservatively with little clinical improvement seen at 4?months. AIN palsies are very rare and account for <1% of all upper limb lesions. Although AIN palsies resulting from other causes such as surgery and blunt trauma are more common, we report the second case of AIN palsy following crutch use, and the first case in which clinical identification was confirmed using electrodiagnosis. Usual clinical practice recommends a prolonged period of conservative management with surgical management withheld for a minimum of 12?months. Correct crutch fitting and early identification of signs of associated injuries are of paramount importance.
| S-EPMC5256517 | biostudies-other
Project description:Microsurgical reconstruction is nowadays the treatment of choice of several head and neck deformities that otherwise could be repaired with limited or unsatisfactory results. The forearm free flap has its own goals expecially the possibility to reconstruct small and extremely specialized anatomical structures such as the soft palate. The abuse of drugs like cocaine, generally taken by sniffing, can produce vascular impairment in nasal and oral tissues producing, as long as the abuse is kept, necrosis of facial anatomical structures and increase of the empty space in the depth of the face or nose. The consequences are generally represented by palatal fistulas or defect, leak of food or drink from the nose, and rhinolalia. Prelamination of the flap before microvascular transfer ensures not only preparation ofadequate tissue volume to resurface the defect but also optimization of the venous outflow. This two times approach, consisting first in preparation and then elevation/transfer of the flap, gives the chances to ensure viability of the flap itself and organize the surgical strategy several times to reduce forthcoming complications. The authors believe that this technical modification could be used for many other chronic defects in the head and neck region but could also be extended, with experience, to bigger defects.Supplementary informationThe online version contains supplementary material available at 10.1007/s12070-023-03870-7.
| S-EPMC10645686 | biostudies-literature
Project description:IntroductionEntrapment neuropathies, typically carpal tunnel syndrome and ulnar neuropathy, frequently occur in patients with spinal cord injury (SCI). Upper limb impairments due to entrapment neuropathy can be particularly debilitating in this population. Anterior interosseous nerve (AIN) neuropathy has not been previously described in the SCI population.Case presentationA 27-year-old left-handed man with a history of C7 ASIA Impairment Scale B spinal cord injury five years prior presented to clinic with decreased left thumb function as well as thumb flexion. Workup including nerve conduction studies, electromyogram, ultrasonographic assessment, and magnetic resonance neurography was consistent with compressive AIN neuropathy. Surgical exploration and neurolysis was performed, with improvement of symptoms.DiscussionEntrapment neuropathies should be carefully considered in the evaluation of patients with SCI with new motor deficits. We report a case of AIN neuropathy in a patient with SCI successfully treated with surgical decompression, and review the literature describing upper extremity entrapment neuropathies in this population. Surgical decompression is an effective option for treatment of AIN neuropathy in the setting of SCI, though further characterization of the optimal management strategy is needed.
| S-EPMC9213399 | biostudies-literature