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Unfallchirurgie (Heidelberg, Germany) Jan 2024A knee dislocation is a serious injury involving at least two of the four major ligamentous stabilizers of the knee. This injury results in multidirectional knee... (Review)
Review
A knee dislocation is a serious injury involving at least two of the four major ligamentous stabilizers of the knee. This injury results in multidirectional knee instability. In dislocation of the knee the popliteal artery and the peroneal nerve can also be damaged. Dislocations with vascular involvement are potentially threatening injuries of the lower extremities. The diagnosis of knee dislocation can be difficult due to a high rate of spontaneous reduction at the initial examination. Knee dislocations are rare and mainly occur in young men. They are mostly caused by high-energy trauma; however, they can also be caused by low-energy injuries. Obesity increases the risk of knee dislocations. The classification of a knee dislocation is based on the anatomical structures involved and the direction of dislocation. The acute treatment includes reduction and stabilization measures. Associated injuries, such as vascular, nerve, extensor mechanism and cartilage injuries as well as fractures and meniscal injuries can influence the treatment approach and the outcome. The definitive surgical treatment depends on the severity of the injury and can include ligament reconstruction or repair with bracing. The aftercare should be individually adapted with the aim to restore knee joint stability and function. Complications such as arthrofibrosis, peroneal nerve palsy, compartment syndrome, postoperative infection and recurrent instability can occur. In the long term, patients have an increased risk for the development of symptomatic osteoarthritis.
Topics: Male; Humans; Knee Dislocation; Joint Dislocations; Knee Joint; Anterior Cruciate Ligament Injuries; Joint Instability
PubMed: 37815539
DOI: 10.1007/s00113-023-01369-y -
European Journal of Orthopaedic Surgery... Dec 2021Intraneural ganglion cysts of the peroneal nerve are rare, and there is lack of evidence for the surgical management of this entity. We performed this study to evaluate...
BACKGROUND
Intraneural ganglion cysts of the peroneal nerve are rare, and there is lack of evidence for the surgical management of this entity. We performed this study to evaluate the imaging, diagnosis, treatment and outcome of seven patients with intraneural ganglion cysts of the peroneal nerve.
MATERIALS AND METHODS
We retrospectively studied the files of seven patients with intraneural ganglion cysts of the peroneal nerve, diagnosed and treated from 2016 to 2019. Diagnostic approach included clinical examination of the leg and foot, magnetic resonance imaging, nerve conduction studies, surgical excision of the cyst and histological examination. The mean follow-up was 2 years (range 1-3.5 years). We evaluated the time and methods for surgical treatment, and the clinical outcomes of the patients.
RESULTS
All patients presented symptoms of peripheral compression neuropathy; three patients presented with foot drop. The intraneural ganglion cysts were excised in all cases in addition to knee articular nerve branch transection to avoid cysts recurrence. Postoperatively, all patients experienced complete neurological recovery without clinical evidence of intraneural ganglion cysts recurrences.
CONCLUSION
The treating physicians should be aware of intraneural ganglion cysts of the peroneal nerve in patients presenting with limb weakness, sensory deficits at the lateral and anterior side of the leg and foot, paresis or paralysis of the foot and ankle. MR imaging is the imaging modality of choice for a clear and accurate preoperative diagnosis to avoid misdiagnosis and wrong treatment. In case of doubt, these patients should be managed in an orthopedic oncology setting with microsurgery facilities available for complete excision of the intraneural ganglion cyst.
Topics: Ganglion Cysts; Humans; Magnetic Resonance Imaging; Neoplasm Recurrence, Local; Peroneal Nerve; Peroneal Neuropathies; Retrospective Studies
PubMed: 33651222
DOI: 10.1007/s00590-021-02903-7 -
Arquivos de Neuro-psiquiatria Sep 2023The distinction between sensory neuronopathies (SN), which is by definition purely sensory, and sensory polyneuropathies (SP) and sensory multineuropathies (SM) is...
BACKGROUND
The distinction between sensory neuronopathies (SN), which is by definition purely sensory, and sensory polyneuropathies (SP) and sensory multineuropathies (SM) is important for etiologic investigation and prognosis estimation. However, this task is often challenging in clinical practice. We hypothesize that F-wave assessment might be helpful, since it is able to detect subtle signs of motor involvement, which are found in SP and SM, but not in SN.
OBJECTIVE
The aim of the present study was to determine whether F-waves are useful to distinguish SN from SP and SM.
METHODS
We selected 21 patients with SP (12 diabetes mellitus, 4 transthyretin familial amyloid polyneuropathy, 4 others), 22 with SM (22 leprosy), and 26 with SN (13 immune-mediated, 10 idiopathic, 3 others) according to clinical-electrophysiological-etiological criteria. For every subject, we collected data on height and performed 20 supramaximal distal stimuli in median, ulnar, peroneal, and tibial nerves, bilaterally, to record F-waves. Latencies (minimum and mean) and persistences were compared across groups using the Kruskal-Wallis and Bonferroni tests. -values < 0.05 were considered significant.
RESULTS
All groups were age, gender, and height-matched. Overall, there were no significant between-group differences regarding F-wave latencies. In contrast, F-wave persistence was able to stratify the groups. Peroneal F-wave persistence was higher, bilaterally, in the SN group compared to SM and SP ( < 0.05). In addition, F-waves persistence of the ulnar and tibial nerves was also helpful to separate SN from SP ( < 0.05).
CONCLUSION
F-wave persistence of the peroneal nerves might be an additional and useful diagnostic tool to differentiate peripheral sensory syndromes.
Topics: Humans; Neural Conduction; Median Nerve; Ulnar Nerve; Tibial Nerve; Peroneal Nerve; Polyneuropathies; Syndrome; Peripheral Nerves
PubMed: 37793400
DOI: 10.1055/s-0043-1772599 -
Pain Medicine (Malden, Mass.) Aug 2020Peripheral nerve stimulation (PNS) of the lower extremity has progressed significantly over the last decade. From the proof of concept that ultrasound-guided,... (Review)
Review
OBJECTIVE
Peripheral nerve stimulation (PNS) of the lower extremity has progressed significantly over the last decade. From the proof of concept that ultrasound-guided, percutaneous implantation was possible to advances in waveforms, the field has been rapidly evolving. While most nerves in the lower extremity can be PNS targets, consideration must be given to the ergonomics of pulse generator placement, patient comfort, and avoidance of lead migration. For this paper, we examine some of the conditions amenable to lower extremity PNS, review the evidence and history behind PNS for these conditions, and describe approaches for the tibial, sural, and superficial peroneal nerves.
METHODS
A literature search was conducted using PubMed. Search terms used were "peripheral nerve stimulation," "lower extremity entrapment neuropathies," "sural nerve," "superficial peroneal nerve," "tibial nerve," and "tarsal tunnel syndrome." Emphasis was placed on randomized controlled studies, anatomical dissections, and comprehensive review articles. Approaches to nerves and ultrasound images were based on anecdotal PNS cases from an experienced implanter (SP).
CONCLUSIONS
The development of ultrasound as a viable method of image guidance for percutaneous peripheral nerve stimulation has led to an exponential growth in the field. Lower extremity percutaneous lead placement is both feasible and an appropriate treatment modality for certain pain conditions.
Topics: Humans; Lower Extremity; Peripheral Nerves; Peroneal Nerve; Sural Nerve; Tibial Nerve; Transcutaneous Electric Nerve Stimulation
PubMed: 32804232
DOI: 10.1093/pm/pnaa202 -
The Journal of Foot and Ankle Surgery :... 2021Although nerve transfer and repair are well-established for treatment of nerve injury in the upper extremity, there are no established parameters for when or which... (Meta-Analysis)
Meta-Analysis Review
Although nerve transfer and repair are well-established for treatment of nerve injury in the upper extremity, there are no established parameters for when or which treatment modalities to utilize for tibial nerve injuries. The objective of our study is to conduct a systematic review of the effectiveness of end-to-end repair, neurolysis, nerve grafting, and nerve transfer in improving motor function after tibial nerve injury. PubMed, Cochrane, Medline, and Embase libraries were queried according to the PRISMA guidelines for articles that present functional outcomes after tibial nerve injury in humans treated with nerve transfer or repair. The final selection included Nineteen studies with 677 patients treated with neurolysis (373), grafting (178), end-to-end repair (90), and nerve transfer (30), from 1985 to 2018. The mean age of all patients was 27.0 ± 10.8 years, with a mean preoperative interval of 7.4 ± 10.5 months, and follow-up period of 82.9 ± 25.4 months. The mean graft repair length for nerve transfer and grafting patients was 10.0 ± 5.8 cm, and the most common donor nerve was the sural nerve. The most common mechanism of injury was gunshot wound, and the mean MRC of all patients was 3.7 ± 0.6. Good outcomes were defined as MRC ≥ 3. End-to-end repair treatment had the greatest number of good outcomes, followed by neurolysis. Patients with preoperative intervals less than 7 months were more likely to have good outcomes than those greater than 7 months. Patients with sport injuries had the highest percentage of good outcomes in contrast to patients with transections and who were in MVAs. We found no statistically significant difference in good outcomes between the use of sural and peroneal donor nerve grafts, nor between age, graft length, and MRC score.
Topics: Adolescent; Adult; Humans; Nerve Transfer; Neurosurgical Procedures; Peroneal Nerve; Sural Nerve; Tibial Nerve; Treatment Outcome; Wounds, Gunshot; Young Adult
PubMed: 34366221
DOI: 10.1053/j.jfas.2021.07.001 -
Peroneal Nerve Function Before and Following Surgical Excision of a Proximal Fibular Osteochondroma.Journal of Pediatric Orthopedics Jan 2021Osteochondromas occur most commonly in the distal femur, proximal tibia, and humerus. There are no large studies reviewing the outcome of treatment for patients with an...
BACKGROUND
Osteochondromas occur most commonly in the distal femur, proximal tibia, and humerus. There are no large studies reviewing the outcome of treatment for patients with an osteochondroma involving the proximal fibula. The purpose of this study is to specifically understand the manifestations of a proximal fibular osteochondroma (PFO) on the preoperative peroneal nerve function, and how surgical management of the osteochondroma affects function immediately postoperatively and at long-term follow-up.
METHODS
This is an institutional review board-approved retrospective review of a consecutive series of patients with a PFO treated operatively at a single institution. The medical record was carefully reviewed to identify demographic data, clinical data especially the status of the peroneal function at various time points.
RESULTS
There were 25 patients with 31 affected extremities who underwent surgical excision of the PFO at an average age of 12.4 years (range, 3.0 to 17.9 y). There were 16 males and 9 females. The underlying diagnosis was isolated PFO in 2 (8%) patients and multiple hereditary exostosis in 23 (92%) patients. Preoperatively, 9 (29%) had a foot drop and 22 (71%) did not. Those with a preoperative foot drop underwent surgery at a younger age (9.1 vs. 13.8 y) (P<0.004) and postoperatively 5 (55.5%) had complete resolution, 3 (33.3%) had improvement, and 1 (11.1%) persisted requiring an ankle foot orthosis. Of the 22 who were normal preoperatively, 5 (22.7%) developed an immediate postoperative foot drop, 3 (60%) completely resolved, 1 (20%) improved, and 1 (20%) persisted and was found to have a transected nerve at exploration. In total, 23 of the 25 (92%) patients who had a PFO excision, had a normal or near-normal peroneal nerve function including those who had poor function preoperatively.
CONCLUSIONS
Patients with a PFO have a preoperative peroneal nerve dysfunction 30% of the time and 23% of those who were normal preoperatively have postoperative dysfunction. Fortunately, nearly all patients have a complete recovery following excision of the osteochondroma.
LEVEL OF EVIDENCE
Level IV.
Topics: Adolescent; Bone Neoplasms; Child, Preschool; Exostoses, Multiple Hereditary; Female; Fibula; Humans; Male; Osteochondroma; Perioperative Period; Peroneal Nerve; Peroneal Neuropathies; Postoperative Complications; Retrospective Studies; Time; Treatment Outcome
PubMed: 33003067
DOI: 10.1097/BPO.0000000000001688 -
Orthopaedic Journal of Sports Medicine Aug 2023Posterolateral corner (PLC) knee injuries associated with different injury mechanisms are not well known.
BACKGROUND
Posterolateral corner (PLC) knee injuries associated with different injury mechanisms are not well known.
PURPOSE/HYPOTHESIS
This study sought to assess the patterns of associated injuries in the setting of PLC injury. The hypothesis was that there are recognizable injury patterns in PLC injuries that may correlate with injury mechanism.
STUDY DESIGN
Cross-sectional study; Level of evidence, 3.
METHODS
Patients who sustained a multiligament knee injury were retrospectively reviewed. Patients who sustained an acute grade 3 PLC injury and underwent surgery were enrolled in this study. A description of the PLC injury (location of the injury of the fibular collateral ligament [FCL], popliteus tendon, and/or popliteofibular ligament) and reported concomitant injuries (biceps femoris tendon or meniscal tears, cartilage pathology and/or peroneal nerve palsy, or bone bruises) were collected and classified based on intraoperative and magnetic resonance imaging (MRI) findings.
RESULTS
Of 135 patients reviewed, 83 did not have PLC involvement and 13 were excluded due to insufficient MRI scans available. Thus, 39 patients were included in this study. For both the anterior cruciate ligament (ACL)-PLC and ACL-posterior cruciate ligament-PLC injury patterns, the most frequent injury pattern entailed a bone bruise of the anteromedial (AM) femur and tibia, an FCL tear from the fibular head, the popliteus tendon avulsed off the femur, a biceps femoris tendon torn off the fibular head, and a common peroneal nerve palsy. Conversely, when no bone bruise occurred on the AM femur and tibia, the FCL was injured on the femoral side and the popliteus tendon, biceps femoris, and peroneal nerve were not injured.
CONCLUSION
AM bone bruise was associated with a peroneal nerve injury in almost half of the patients, and peroneal nerve injury was not seen if there was no AM bone bruise.
PubMed: 37663094
DOI: 10.1177/23259671231184468 -
Sudanese Journal of Paediatrics 2023Ataxia-telangiectasia-like disorder-1 (ATLD1, OMIM # 604391) is a very rare clinical condition, characterized by slowly progressive ataxia with onset in childhood,...
Ataxia-telangiectasia-like disorder-1 (ATLD1, OMIM # 604391) is a very rare clinical condition, characterized by slowly progressive ataxia with onset in childhood, associated with oculomotor apraxia and dysarthria. Laboratory findings reveal increased susceptibility to radiation, with a defect in DNA repair. Patients with ATLD1 show no telangiectasia, have no immunodeficiency, and also have preserved cognition. Reflexes might be initially brisk and later becomes reduced associated with axonal sensorimotor neuropathy. Brain magnetic resonance imaging (MRI) detects cerebellar atrophy. The condition is caused by mutations in the meiotic recombination 11 ( gene. The present study reports on the neurophysiologic finding in eight Saudi patients, belonging to three Saudi families, who have genetically confirmed ATLD1. All investigated patients had cerebellar atrophy on brain MRI (5/5). Electrophysiologic studies showed normal motor conduction velocity (MCV) of the median (8/8) and tibial (2/2) nerves, while 5/6 (83%) had normal peroneal nerve MCV. The distal motor latency (DML) for median, tibial, and peroneal nerves was within the normal range in all examined patients. The amplitude of compound muscle action potential (CMAP) of median and tibial nerves was also normal, while that of the peroneal nerve was normal in 3/6 (50%). Two of seven (29%) patients had reduced amplitude of median nerve sensory nerve action potential (SNAP) while 3/8 (38%) had a reduction in the amplitude of sural nerve SNAP. These findings favour an axonal type of neuropathy predominately affecting the sensory fibres (axonal sensorimotor neuropathy). The present study constitutes the largest cohort of ATLD1 patients worldwide who had electrophysiologic tests.
PubMed: 38380400
DOI: 10.24911/SJP.106-1703054783 -
The Journal of Urology Apr 2023
Topics: Humans; Urinary Bladder, Overactive; Peroneal Nerve; Transcutaneous Electric Nerve Stimulation; Electric Stimulation Therapy; Tibial Nerve; Treatment Outcome
PubMed: 36724063
DOI: 10.1097/JU.0000000000003203 -
Plastic Surgery (Oakville, Ont.) May 2024The objective of this work is to: (i) evaluate the postoperative outcomes after lower extremity nerve transfer (LENT) in patients with peroneal nerve palsy, and (ii)...
The objective of this work is to: (i) evaluate the postoperative outcomes after lower extremity nerve transfer (LENT) in patients with peroneal nerve palsy, and (ii) evaluate the patient and surgical factors that best predict successful restoration of ankle dorsiflexion following nerve transfer. A retrospective cohort of prospectively collected data included all patients who underwent LENT (2010-2018). Two independent reviewers performed data collection. Primary outcome measures were: (i) clinically with British Medical Research Council (MRC) strength assessments, and (ii) electrodiagnostically with nascent motor unit potentials. Statistical analysis was performed using descriptive and nonparametric statistics. Nine patients (56% male, mean age 38.3, range 18-57 years) underwent LENT surgery a mean of 4.3 months following injury (range 2.2-6.4 months). Mean follow-up was 15.6 months (range 9.1-28.2 months). Postoperatively, ankle dorsiflexion ( = .015) and ankle eversion ( = .041) increased significantly. After surgery, 44% achieved MRC 4, 33% obtained MRC 1 motor recovery, and 22% sustained MRC 0. A shorter time to surgery was associated with significantly better outcomes ( = .049). It appears that there is a bimodal distribution between responders and nonresponders to LENT for foot drop. Further research is required to elucidate patient and surgical factors that prognosticate success.
PubMed: 38681240
DOI: 10.1177/22925503221101956