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1.
Medeni Med J ; 39(3): 230-234, 2024 Sep 30.
Article in English | MEDLINE | ID: mdl-39350578

ABSTRACT

During routine dissection of the anterior compartment of the arm region, we encountered several variations in the muscular and neural structures in the right upper extremity of a female cadaver. We observed one superiorly positioned extramuscular head with fibers originating from both the biceps brachii (BB) and coracobrachialis (CB) muscles and one inferiorly positioned extramuscular head with fibers solely from the BB muscle. The musculocutaneous nerve did not penetrate the CB muscle, but instead provided a muscular branch that communicated with the median nerve (MN). Both the MN and brachial artery (BA) flow beneath the extra head. This case suggests that the described variations may contribute to the entrapment of the MN and compression of the BA. Understanding these variations is crucial before surgical intervention. The failure to recognize such anatomical nuances could lead to inadvertent nerve injury or compromised vascular perfusion, emphasizing the need for preoperative planning and intraoperative vigilance.

2.
J Ultrasound Med ; 2024 Oct 09.
Article in English | MEDLINE | ID: mdl-39382438

ABSTRACT

OBJECTIVE: Peripheral nerves remain a challenging target for medical imaging, given their size, anatomical complexity, and structural heterogeneity. Quantitative ultrasound (QUS) applies a set of techniques to estimate tissue acoustic parameters independent of the imaging platform. Many useful medical and laboratory applications for QUS have been reported, but challenges remain for deployment in vivo, especially for heterogeneous tissues. Several phenomena introduce variability in attenuation estimates, which may influence the estimation of other QUS parameters. For example, estimating the backscatter coefficient (BSC) requires compensation for the attenuation of overlying tissues between the transducer and the underlying tissue of interest. The purpose of this study is to extend prior studies by investigating the efficacy of several analytical methods of estimating attenuation compensation on QUS outcomes in the human median nerve. METHODS: Median nerves were imaged at the volar wrist in vivo and beam-formed radiofrequency (RF) data were acquired. Six analytical approaches for attenuation compensation were compared: 1-2) attenuation estimated by applying spectral difference method (SDM) and spectral log difference method (SLDM) independently to regions of interest (ROIs) overlying the nerve and to the nerve ROI itself; 3-4) attenuation estimation by applying SDM and SLDM to ROIs overlying the nerve, and transferring these properties to the nerve ROI; and 5-6) methods that apply previously published values of tissue attenuation to the measured thickness of each overlying tissue. Mean between-subject estimates of BSC-related outcomes as well as within-subject variability of these outcomes were compared among the 6 methods. RESULTS: Compensating for attenuation using SLDM and values from the literature reduced variability in BSC-based outcomes, compared to SDM. Variability in attenuation coefficients contributes substantially to variability in backscatter measurements. CONCLUSION: This work has implications for the application of QUS to in vivo diagnostic assessments in peripheral nerves and possibly other heterogeneous tissues.

3.
Surg Neurol Int ; 15: 347, 2024.
Article in English | MEDLINE | ID: mdl-39372995

ABSTRACT

Background: The use of ultrasonography to diagnose and manage peripheral nerve injury is not routinely performed, but is an advantageous alternative to magnetic resonance imaging (MRI) in the pediatric population. Case Description: The authors report a case of a toddler-aged female who sustained a supracondylar fracture and subsequent median and ulnar nerve injuries. All preoperative and postoperative imaging was performed through high-resolution ultrasound as opposed to MRI. Starting at 6 months post-nerve repair and with 18 months of follow-up, the patient exhibited substantial improvement in motor strength and sensory function. This case demonstrated a successful outcome while providing an imaging alternative that is portable, relatively low-cost, lacks ionizing radiation, provides additional information on vascular integrity, and obviates the need for general anesthetic such as MRI. Conclusion: The authors conclude that the use of ultrasonography to diagnose and manage traumatic peripheral nerve injury is advantageous, particularly in the pediatric population.

4.
Article in English | MEDLINE | ID: mdl-39376111

ABSTRACT

Background: Carpal tunnel syndrome (CTS) can be treated surgically. Although the minimally invasive open surgical method is widely used, it is not possible to directly visualise the entire length of the carpal tunnel, especially the proximal end, which is on the side away from the skin incision. In this study, we performed a mini-open carpal tunnel release with endoscopic assistance to release the entire length of the carpal tunnel under direct vision and investigated the treatment outcomes. Methods: The surgical method included an incision of ≤2 cm in the palm, cutting of the transverse carpal ligament under direct vision and cutting of the forearm fascia under endoscopic vision. A uniquely designed sheath was used for the endoscopic resection. We investigated the sex, age, medical history, symptoms, examination findings, anaesthesia method, operation time, thenar motor branch variation, postoperative complications, presence or absence of pillar pain and final examination findings of the target patients. Results: A total of 100 hands (85 patients) were included. Anatomical variations of the thenar motor branches were observed in 19 hands. At the final follow-up, hand numbness improved in all patients, while mild numbness was observed in 25 hands. The abductor pollicis brevis muscle improved in all patients with paresis, but 8 of the 27 hands remained completely paralysed. Pillar pain was observed in 36 hands at 8 weeks postoperative, but the condition improved in all patients. The clinical outcomes of this study were good with no cases of major complications or reoperation. Conclusions: The minimally invasive open surgical method described here can be reliably used to release the forearm fascia proximal to the carpal tunnel. The thenar motor branch can also be confirmed under direct visualisation, making it a relatively safe and useful approach. Level of Evidence: Level Ⅳ (Therapeutic).

5.
BMC Surg ; 24(1): 284, 2024 Oct 03.
Article in English | MEDLINE | ID: mdl-39363274

ABSTRACT

OBJECTIVE: Schwannomas are benign, slow-growing tumors originating from Schwann cells in peripheral nerves, commonly affecting the median and ulnar nerves in the forearm and wrist. Surgical excision is the gold standard treatment. This study presents our treatment strategies and outcomes for large-sized ulnar and median nerve schwannomas at the forearm and wrist level. METHODS: From 2012 to 2023, we enrolled 15 patients with schwannomas over 2 cm in size in the median or ulnar nerve at the forearm and wrist. The study included 12 patients with median nerve schwannomas (mean age: 61 years) and 3 with ulnar nerve schwannomas (mean age: 68 years), with a mean follow-up of 26.9 months. RESULTS: After surgery, all patients with median nerve schwannomas experienced mild, transient numbness affecting fewer than two digits, resolving within six months without motor deficits. Ulnar nerve schwannoma excision caused mild numbness in two patients, also resolving within six months, but all three developed ulnar claw hand deformity, which persisted but improved at the last follow-up. Despite this, patients were satisfied with the surgery due to relief from severe tingling pain. CONCLUSIONS: Schwannomas of the median, ulnar, and other peripheral nerves should be removed by carefully dissecting the connecting nerve fascicles to avoid injury to healthy ones. Sensory deficits may occur but are unlikely to significantly impact quality of life. However, in motor-dominant nerves like the ulnar nerve, there is a risk of significant motor deficits that could affect hand function, though not completely. Therefore, thorough preoperative discussion and consideration of interfascicular nerve grafting are essential.


Subject(s)
Median Nerve , Neurilemmoma , Peripheral Nervous System Neoplasms , Ulnar Nerve , Humans , Neurilemmoma/surgery , Neurilemmoma/pathology , Neurilemmoma/diagnosis , Middle Aged , Male , Female , Aged , Ulnar Nerve/surgery , Median Nerve/surgery , Peripheral Nervous System Neoplasms/surgery , Peripheral Nervous System Neoplasms/pathology , Treatment Outcome , Adult , Follow-Up Studies , Neurosurgical Procedures/methods , Retrospective Studies
6.
Adv Clin Exp Med ; 2024 Sep 03.
Article in English | MEDLINE | ID: mdl-39225595

ABSTRACT

BACKGROUND: Carpal tunnel syndrome (CTS) is the most common entrapment neuropathy that occurs when the median nerve is compressed within the carpal tunnel. Electromyography (EMG) is accepted as the most frequently used and important diagnostic method for CTS. Recently, magnetic resonance imaging (MRI) has begun to be used in CTS patients to directly visualize the median nerve and examine the changes occurring in the nerve structure. OBJECTIVES: In this study, the area of the median nerve was measured at various levels in the wrist in patients with CTS using MRI, examining its relationship with signal increase, and comparing this to results obtained with EMG. MATERIAL AND METHODS: Overall, 35 patients diagnosed with CTS were included in the study. Patients with normal-mild and moderate-severe EMG tests were included in the study; wrist MRI was taken to investigate the area/mm2 of the median nerve at various levels and whether there was an increase in signal. Thenar muscles included in the imaging were also evaluated. RESULTS: Of the 35 patients included in the study, 24 were women (68.6%) and 11 were men (31.4%). Measurements of the average median nerve area measured in mm2 at the distal radioulnar junction (DRUJ) and the median nerve area measured in mm2 at the hamate bone level were obtained, showing that DRUJ and hamate bone distance measurements were higher in patients with positive EMG. Electromyography findings were also significantly positive in patients with increased signal. CONCLUSIONS: In some cases, the diagnosis of CTS can be easily made with history and physical examination or employing confirmatory tests such as EMG, which is considered the gold standard. Magnetic resonsnace imaging can be used as an alternative method for imaging the median nerve in patients with CTS. In our study, EMG findings were also significantly positive in patients with increased signal on MRI, making it a preferable method, especially in soft tissue-related pathological cases.

7.
Neurol Int ; 16(5): 1026-1038, 2024 Sep 19.
Article in English | MEDLINE | ID: mdl-39311351

ABSTRACT

Background/Objectives: The accurate quantification of peripheral nerve axonal regeneration after injury is critically important. Current strategies are limited to detecting early reinnervation. DTI is an MRI modality permitting the assessment of fractional anisotropy, which increases with axonal regeneration. The aim of this pilot study is to evaluate DTI as a potential predictive factor of clinical outcome after median nerve section and microsurgical repair. Methods: We included 10 patients with a complete section of the median nerve, who underwent microsurgical repair up to 7 days after injury. The follow-up period was 1 year, including the current strategy with clinical visits, the Rosén-Lundborg score and electroneuromyography. Additionally, DTI MRI of the injured wrist was planned 1, 3 and 12 months post-operatively and once for the contralateral wrist. Results: The interobserver reliability of DTI measures was almost perfect (ICC 0.802). We report an early statistically significant increase in the fractional anisotropy value after median nerve repair, especially in the region located distal to the suture. Meanwhile, Rosén-Lundborg score gradually increased between the third and sixth month, and continued to increase between the sixth and twelfth month. Conclusions: DTI outcomes three months post-operation could offer greater predictability compared to current strategies. This would enable faster decision-making regarding the need for a potential re-operation in cases of inadequate early reinnervation.

8.
Cureus ; 16(8): e66381, 2024 Aug.
Article in English | MEDLINE | ID: mdl-39246874

ABSTRACT

Background Isolated hand motor nerve injuries, specifically those affecting the recurrent motor branch of the median nerve and the deep motor branch of the ulnar nerve, are rarely reported in medical literature. Diagnosing and quantifying these injuries pose significant challenges due to their uncommon nature and the variety of mechanisms that can cause them. Methodology This study reviews six unusual cases of isolated damage to the recurrent motor branch of the median nerve and the deep motor branch of the ulnar nerve, including cases with combined injuries. The etiologies include various traumatic and compressive mechanisms, such as a blow from the thenar to the back of a knife blade, long-distance cycling, impact from a broken shovel handle, knife injury, and damage from a screw while using a cordless screwdriver. In one case, the cause was indeterminate. Diagnostic methods involved clinical evaluation, electrophysiological testing (nerve conduction studies and electromyography), and high-resolution ultrasound imaging. A thorough medical history was also crucial in understanding the injury mechanisms. Results The cases demonstrated a range of causes for isolated hand motor nerve injuries, with both traumatic and compressive mechanisms identified. The diagnostic process highlighted the value of integrating clinical assessments, electrophysiological data, and ultrasound imaging to accurately diagnose and understand the extent and nature of the injuries. Conclusions Isolated motor nerve injuries in the hand can arise from diverse and often unexpected causes. Comprehensive clinical evaluation, supported by electrophysiological testing and ultrasound imaging, is essential for accurate diagnosis and management. A detailed medical history is invaluable in identifying the mechanism of injury, which is critical for developing an appropriate treatment plan. The study underscores the importance of a multidisciplinary approach in diagnosing and treating these rare neuropathies.

9.
Cureus ; 16(8): e66489, 2024 Aug.
Article in English | MEDLINE | ID: mdl-39247013

ABSTRACT

An 89-year-old Caucasian male cadaver with prostate cancer demonstrated bilateral persistence of the median artery and bifid median nerve (BMN) during upper limb dissection. The persistent median artery (PMA) originated from the common interosseous artery and coursed alongside the median nerve. Proximal to the carpal tunnel, the median nerve bifurcated into medial and lateral branches. To our knowledge, this is the first documented case of a bilateral PMA and BMN. While the majority of existing literature focuses on a unilateral PMA or unilateral BMN, bilateral occurrences of either variation are rare. This report presents a novel finding by documenting the simultaneous presence of a bilateral PMA and BMN.

10.
Eplasty ; 24: e39, 2024.
Article in English | MEDLINE | ID: mdl-39224407

ABSTRACT

This case report presents a 72-year-old female with a unique anatomical variation of the median nerve recurrent motor branch that has not been described in the literature. During her open carpal tunnel release, the recurrent motor branch was found to divide from the median nerve within the carpal tunnel, pierce the proximal aspect of the transverse carpal ligament in a transligamentous fashion, and then immediately divide into one branch that pierced the thenar muscles and another branch that traveled superficial to the transverse carpal ligament before piercing the thenar muscles more distal. This variation in anatomy stresses the importance of thoughtful incision design and direct visualization of all structures during carpal tunnel release.

11.
Eur J Neurol ; : e16459, 2024 Sep 04.
Article in English | MEDLINE | ID: mdl-39230443

ABSTRACT

BACKGROUND AND PURPOSE: Supracondylar humerus fractures (SCHFs) are the most common elbow fractures in children. Traumatic median nerve injury and isolated lesions of its pure forearm motor branch, anterior interosseus nerve (AIN), have both been independently reported as complications of displaced SCHFs. Our main objectives were to characterize the neurological syndrome to distinguish median nerve from AIN lesions and to determine the prognosis of median nerve lesions after displaced SCHFs. METHODS: Ten children were prospectively followed for an average of 11.6 months. Patients received a standardized clinical examination and high-resolution ultrasound of the median nerve every 1-3 months starting 1-2 months after trauma. Electrodiagnostic studies were performed within the first 4 months and after complete clinical recovery. RESULTS: All children shared a clinical syndrome with predominant but not exclusive affection of AIN innervated muscles. High-resolution ultrasound uniformly excluded persistent nerve entrapment and neurotmesis requiring revision surgery but visualized post-traumatic median nerve neuroma at the fracture site in all patients. Electrodiagnostic studies showed axonal motor and sensory median nerve neuropathy. All children achieved complete functional recovery under conservative management. Motor recovery required up to 11 months and differed between involved muscles. CONCLUSIONS: It was shown that neurological deficits of the median nerve in displaced SCHFs exceeded an isolated AIN lesion. Notably, detailed neurological follow-up examinations and sonographic exclusion of persistent nerve compression were able to guide conservative therapy in affected children. Under these conditions the prognosis of median nerve lesions was excellent despite severe initial deficits, development of neuroma and axonal injury.

12.
Clin Neurol Neurosurg ; 246: 108508, 2024 Aug 22.
Article in English | MEDLINE | ID: mdl-39241694

ABSTRACT

BACKGROUND AND OBJECTIVES: Choosing the correct site for a nerve biopsy remains a challenge due to nerve sacrifice and major donor site complications, such as neuroma, as seen in sural nerve biopsy. Selecting a deeper donor nerve can help in burying nerve stumps in deep soft tissues, preventing neuroma. Moreover, using an expendable, deeply situated motor nerve can aid indiagnosis when a motor neuropathy is suspected. The authors propose using the pronator quadratus (PQ) branch for this purpose, as it is located deep between the bellies of the flexor muscles and the interosseous membrane in the forearm. This branch is expendable since the denervation of the PQ has a negligible effect on forearm pronation, which is primarily sustained by the pronator teres. METHODS: The surgical approach is the same as the approach for anterior interosseous nerve transfer to the motor component of the ulnar nerve in the distal forearm: access is in the midline in the middle third of the forearm under local anesthesia Blunt dissection is performed, separating and retracting the flexor musculotendinous junction to reach the interosseous membrane where the PQ branch is identified. A careful dissection of the nerve branch is performed, allowing a 2 cm long segment to be cut and removed. The proximal stump is then buried into an adjacent muscle belly and the surgical site is closed. RESULTS: The technique is safe and reproducible in experienced hands. CONCLUSION: This technique may be especially applicable in cases where neurologists need to study motor neuropathies. Contraindications of the technique include wrist instability and high median nerve palsies.

13.
Cureus ; 16(8): e66228, 2024 Aug.
Article in English | MEDLINE | ID: mdl-39238735

ABSTRACT

Entrapment neuropathy of the median nerve is typically caused by compression at specific anatomical points. However, idiopathic cases, where the standard anatomical compression points are normal, pose diagnostic challenges. This report highlights a unique case discovered during an anatomical dissection of the right upper limb in a 62-year-old male cadaver, where the median nerve was compressed by an unusual branch of the brachial artery, termed the superficial brachioulnar artery (SBUA). The median nerve formed at the distal half of the arm, receiving additional components from the lateral cord, with a noted communication with the musculocutaneous nerve. The SBUA, originating from the brachial artery, passed between the roots of the median nerve and continued superficially, forming the superficial palmar arch. The coexistence of neurovascular variations is clinically significant as it may lead to nerve compression and subsequent symptoms. This case is the first documented instance of median nerve compression by an SBUA. Such variations are crucial for surgical and diagnostic procedures, as abnormal vascular structures can be mistaken for veins, leading to iatrogenic injuries. In addition, understanding these variations helps explain idiopathic median nerve neuropathies and highlights the need for thorough anatomical knowledge to prevent complications during surgical interventions.

14.
Rev Bras Ortop (Sao Paulo) ; 59(4): e504-e509, 2024 Aug.
Article in English | MEDLINE | ID: mdl-39239591

ABSTRACT

Objective The most common compressive neuropathy of the upper limbs is carpal tunnel syndrome (CTS). Historically, there has been a tendency to apply immobilization in the postoperative period, a practice that has decreased in recent years. This review aims to assess whether there is scientific evidence to justify the use of immobilization in the postoperative care of CTS decompression. Methods The following databases were used: Biblioteca Virtual em Saúde (BVS), PubMed National Library of Medicine - (NLM), Cochrane Library, Scientific Electronic Library Online (SciELO), and EMBASE. The following inclusion criteria were used: 1) discussion of the postoperative period of median nerve decompression surgery in CTS; 2) comparison of results after surgical decompression in CTS between wrist immobilization or local dressing; 3) all languages, regardless of the year of publication; and 4) all types of publications. The following exclusion criteria were used: 1) studies that did not evaluate the postoperative period of CTS decompression; 2) lack of evaluation of the outcome related to the application of local dressing or some form of wrist immobilization after the surgical decompression procedure; and 3) repeated publications. Results The literature search resulted in 336 relevant publications. In the end, 18 publications were chosen. Systematic reviews, randomized clinical trials, and cross-sectional studies were found. Conclusions Due to the scarcity of evidence supporting the use of immobilization coupled with the higher costs associated with the practice, it has become less and less frequent in recent decades. Clinical relevance In the literature, two approaches to postoperative care for CTS decompression are described: immobilization or just local dressing. According to the available scientific evidence, it is worth evaluating which one is better.

15.
Hand Surg Rehabil ; : 101782, 2024 Sep 25.
Article in English | MEDLINE | ID: mdl-39332637

ABSTRACT

BACKGROUND: The aim of this study was to accurately locate the neural fascicle controlling hand movement in the upper arm, to enhance expression of motor intention after targeted muscle reinnervation. METHODS: The right sides of the median, ulnar and radial nerves were dissected from distal to proximal in 6 fresh cadaver specimens. The sectional location and diameter of the functional fascicle were measured at 10 and 20 cm below the acromion. The diameter of the main muscle branches of muscle reinnervation target muscles was measured. RESULTS: The median nerve branch of finger and wrist flexion was mainly located between the 9 and 12 o'clock positions in the plane 10 and 20 cm below the acromion, where the diameter of the nerve fascicle was 2.07 and 2.04 mm, respectively. The ulnar nerve branch of finger and wrist flexion was mainly located between the 8 and 12 o'clock positions, with a diameter of respectively 1.80 and 1.99 mm. The radial branch of finger and wrist extension was mainly located between the 10 and 2 o'clock positions in the plane 10 cm below the acromion and between 6 and 12 o'clock in the plane 20 cm below the acromion, with a diameter of respectively 2.57 and 3.03 mm. CONCLUSIONS: The nerve fascicles innervating the flexor and extensor fingers were distributed in relatively constant regions of the median, ulnar and radial nerve trunks, and their diameters closely matched the muscle branches of the target muscle.

16.
J Hand Surg Eur Vol ; : 17531934241280184, 2024 Sep 28.
Article in English | MEDLINE | ID: mdl-39340258

ABSTRACT

Both forearms of 36 patients who had been treated with an anterior locking plate using the trans-flexor carpi radialis approach for unilateral distal radial fractures were investigated by ultrasonography from the distal end of the radius to 5 cm proximally before plate removal. After fixation of the anterior locking plate, the median nerve was significantly more radially located to the flexor carpi radialis tendon than on the healthy side and showed hypertrophy and flattening at the distal end of the radius. In six cases, the median nerve on the plate side lay radial to the flexor carpi radialis tendon. The median nerve after plate fixation may lie more radially than its original position. Confirming the radial deviation of the median nerve by ultrasonography before removal of the anterior locking plate is useful to prevent the complication of median nerve injury.Level of evidence: IV.

17.
Cureus ; 16(8): e68201, 2024 Aug.
Article in English | MEDLINE | ID: mdl-39347190

ABSTRACT

Carpal tunnel syndrome (CTS) is a common neuropathy with various underlying causes, posing diagnostic and management challenges for healthcare providers. The condition is typically associated with repetitive strain, idiopathic factors, or anatomical variations, leading to the compression of the median nerve within the carpal tunnel. We describe a case of a 46-year-old male who presented with recurrent CTS symptoms one year after a successful carpal tunnel release surgery. The symptoms resurfaced following a minor wrist trauma, leading to pain, numbness, and hand weakness. Despite initial conservative management, including immobilization and NSAIDs, the symptoms persisted. Further investigation and exploratory surgery revealed a rare subepineural hematoma of the median nerve, which was subsequently drained, resulting in immediate and lasting symptom relief. This case demonstrates the importance of considering uncommon etiologies such as subepineural hematomas in patients with recurrent CTS and underscores the need for a thorough diagnostic approach to ensure effective treatment.

18.
Cureus ; 16(8): e66996, 2024 Aug.
Article in English | MEDLINE | ID: mdl-39280477

ABSTRACT

INTRODUCTION: During clinical practice, physicians need to have a sound knowledge of vascular and nerve variations in the body. Patients presenting with various clinical signs and symptoms need to be thoroughly investigated with anatomic variations in mind to prevent misdiagnosis. Most nerve variations are related to their formation or their course and are frequently associated with the variability of structures that surround them. These structures most commonly include blood vessels, ligaments, and muscles. Such variations should be foremost in a physician's mind when analyzing clinical symptoms. This will aid in accurate diagnosis, and if surgical intervention is warranted, such awareness would minimize intraoperative errors. This article discusses a variation in the pronator teres muscle, the branching pattern of the brachial artery, and the median nerve. MATERIALS AND METHODS: During the dissection of 11 cadaveric specimens within the Geisinger Commonwealth School of Medicine, an elderly female cadaver exhibited bilateral variations in the pronator teres muscle, which originated from the mid-humerus, instead of the medial epicondyle. Careful dissection revealed associated neurovascular variations in the arm, elbow, and forearm in relation to the muscle. The pronator teres muscles in the remaining 10 cadavers in the lab were examined for variations and their lengths were measured and compared with the cadaver under study. RESULT: Unlike the normal origin at the medial epicondyle as described in textbooks, it was observed that the humeral heads of the pronator teres muscle originated at mid-humerus level bilaterally, associated with the passage of the median nerve and ulnar artery posterior to it. This muscle was 19 cm in length bilaterally, approximately 5.5 cm longer than the average lengths of pronator teres measured bilaterally in the other cadavers. The abnormally high origin of this muscle was associated with the finding of a median nerve coursing posterior to it to the forearm, failing to appear in the antecubital fossa. Although the ulnar head appeared normal, there were bilateral variations in the median nerve during its passage between the two heads of the pronator teres at the proximal forearm as it proceeded to the deeper compartment of the forearm. The brachial artery was observed to divide into radial and ulnar arteries at the mid-humerus level. The radial artery replaced the brachial artery in the antecubital fossa and the ulnar artery accompanied the median nerve posterior to pronator teres into the forearm. CONCLUSION: Such variations observed bilaterally have not yet been reported in the literature. Knowledge of these variations in the origin of pronator teres muscle, the absence of specific neurovascular structures as expected within the cubital fossa, and the awareness of early bifurcation and variation in their course can be very profound for physicians, as this region is often involved in the creation of arterio-venous fistulas for medical procedures, surgical treatment options for supracondylar and radial head fractures, and to differentiate median nerve compression in pronator teres syndrome versus carpal tunnel syndrome.

19.
World J Plast Surg ; 13(2): 68-73, 2024.
Article in English | MEDLINE | ID: mdl-39193248

ABSTRACT

Background: Peripheral nerve damage is a very important factor in patients' quality of life and functionality for various reasons. We aimed to compare the functionality level, disability and quality of life in subjects with peripheral nerve repair in the upper extremity. Methods: This cross-sectional study was conducted on patients with nerve injuries in 2019. Among those patients, Eighty-five were selected as the sample. The instruments used in this study included the health-related quality of life standard questionnaire (SF-36), and the disability of the arm, shoulder and hand questionnaire (DASH-38). Data were analyzed by SPSS software version 22 and one-way ANOVA and Kruskal-Wallis statistical tests. Results: Results of the Kruskal-Wallis test showed that the disability score in the groups of patients was not significant. In addition, according to the results of the one-way ANOVA test, the quality of life score was not significant among the patient groups. Conclusion: Considering that peripheral nerve damage has a significant impact on patients' quality of life and functionality, apart from more research on the subject, it is necessary to provide support for patients to improve their quality of life.

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