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Posterior interosseous nerve

Posterior Interosseous Nerve - Anatomy - Orthobullet

Posterior interosseous nerve syndrome is a compressive neuropathy of the posterior interosseous branch of the radial nerve, which affects the innervation of the forearm extensor compartment Posterior Interosseous Nerve. Benjamin C. Taylor 0 % Topic. Review Topic. 0. 0. N/A. N/A. Questions. 3. 0. 0. 100 % 0 % Evidence. 1. 0. 0. Topic Course: Origins originates from the radial nerve at the radiohumeral joint line ; Course. arcade of Frosche at radial head. We dissected 21 cadaver elbows to determine the relationship of the posterior interosseous nerve to the posterolateral approach to the elbow and head of the radius. At the distal end of the exposure the first branches at risk, those to extensor carpi ulnaris, were on average 6.0 +/- 1.0 cm (4.0 to 8.4) from the articular surface of the radial head The posterior interosseous nerve is a branch of the radial nerve, which comes off the posterior cord of the brachial plexus. The posterior interosseous nerve supplies motor innervation to the posterior forearm posterior interosseous nerve (PIN) syndrome (or supina- tor syndrome) has been described using magnetic reso- nance imaging and sonography.7In this condition, the PIN may be entrapped as it courses under the arcade o

Posterior Interosseous Nerve (PIN) Syndrome is a pathology that involves pain and/or motor weakness as a result of nerve compression. In parts of the medical community, Radial Tunnel Syndrome and PIN Syndrome are one in the same, while in other parts they are different diagnoses with the same nerve involvement (Posterior Interosseous Nerve) The Posterior Interosseous nerve (C7,8) is the motor branch of the radial nerve, which arises in the radial tunnel. The Radial Tunnel is a 5 cm tunnel from the radiocapitellar joint to the distal edge of the supinator with well-defined anatomical boundaries: Lateral: Brachioradialis, ERCL, ECRB. Medial: Biceps tendon, brachial :- https://bit.ly/2RQHvTN. (C, D) The first, expected pattern of findings for a patient presenting with posterior interosseous neuropathy syndrome: proximally at the upper arm level, a normal appearance and signal of the radial nerve, while after bifurcation and at entry into the supinator muscle, the nerve shows severely increased T2-weighted signal of the deep branch. The relationship of the posterior interosseous nerve incarcerated within the supinator muscle is known as Posterior interosseous nerve injury or syndrome. The fascial relationship between the posterior interosseous nerve and the supinator muscle is known as the Arcade of Frohse. Posterior Interosseous Nerve Syndrome Symptom

Carpal Tunnel Syndrome

The etiology of posterior interosseous nerve syndrome is similar to that of radial tunnel syndrome. Compression is thought to occur after takeoff of the branches to the radial wrist extensors and. Posterior interosseous nerve syndrome is an entrapment of the deep branch of the radial nerve just distal to the elbow joint, which may result in paresis or paralysis of the digital and thumb extensor muscles. The causes of posterior interosseous nerve syndrome include intrinsic nerve abnormalities and extrinsic compression About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators. Posterior interosseous nerve intraneural ganglion cyst from the scapholunate joint. Clin Anat. 2018 Nov;31 (8):1218-1219. doi: 10.1002/ca.23202. Epub 2018 Sep 21 Description. PINS occurs when muscles innervated by. the posterior interosseous nerve are affected secondary to entrapment. of the posterior interosseous nerve by 1 of several structures ( Fig. 1 ). The related, but separate, radial tunnel. syndrome is characterized by pain and weakness on the lateral side of

Posterior interosseous nerve Radiology Reference Article

Entrapment of the posterior interosseous nerve occurs frequently, and may be manifested by weakness of the forearm extensor muscles, by forearm pain alone, or by both muscle weakness and pain. The disturbance may mimic the peripheral symptoms of a cervical spondylosis and may be related to the occurrence of a rheumatoid arthritis as well Posterior interosseous nerve: an anatomic study of potential nerve grafts. A study of the posterior interosseous nerve (PIN) and the radial tunnel in 30 Thai cadavers. Posterior interosseous nerve palsy in a patient with rheumatoid synovitis of the elbow: a case report and review of the literature. Analgesic benefit, functional outcome, and. The posterior interosseous nerve is a good option for obtaining these aims. First, the posterior interosseous nerve provides adequate tissue and length (2 cm) for diagnosis. The distal extent of the posterior interosseous nerve is purely sensory, which is often a requirement for nerve biopsy specimens After crossing the supinator muscle, the deep branch of the radial nerve, considerably diminished in size, descends as the posterior interosseous nerve (or dorsal interosseous nerve), on the interosseous membrane, in front of the Extensor pollicis longus, to the back of the carpus, where it presents a gangliform enlargement from which filaments are distributed to the ligaments and. Anterior interosseous nerve From Wikipedia, the free encyclopedia The anterior interosseous nerve (volar interosseous nerve) is a branch of the median nerve that supplies the deep muscles on the anterior of the forearm, except the ulnar (medial) half of the flexor digitorum profundus. Its nerve roots come from C8 and T1

Posterior Interosseous Nerve Syndrome - PubMe

  1. al branch of posterior interosseous nerve: a useful donor for digital nerve grafting. Posterior interosseous nerve palsies. Posterior interosseous nerve: an anatomic study of potential nerve grafts. A study of the posterior interosseous nerve (PIN) and the radial tunnel in 30 Thai cadavers
  2. The posterior interosseous nerve is a branch of the radial nerve, which comes off the posterior cord of the brachial plexus. With nerve roots C5 to T1, the radial nerve travels down the arm and divides into superficial and deep branches in the proximal forearm. Normally the deep branch of the radial nerve dives into the posterior forearm.
  3. Introduction: Posterior interosseous nerve (PIN) syndrome is a rare compression neuropathy of the PIN in the region of the supinator muscle, most common by the arcade of Frohse.We aimed to specify ultrasonographic findings in patients with PIN syndrome in comparison to healthy volunteers. Methods: Ultrasound images and clinical data of 13 patients with PIN syndrome confirmed by neurological.

originates from the radial nerve at the radiohumeral joint line; Course. arcade of Frosche at radial head. dives under supinator at arcade of Frosche (thickened edge of between heads of supinator) forearm posterior compartment. winds around radial neck within substance of muscle to posterior compartment of forearm; interosseous membran Description. The Deep Branch of the Radial Nerve (n. interosseus dorsalis; dorsal or posterior interosseous nerve) winds to the back of the forearm around the lateral side of the radius between the two planes of fibers of the Supinator, and is prolonged downward between the superficial and deep layers of muscles, to the middle of the forearm The arcade of Frohse, a fibrous arch over the posterior interosseous nerve, may well play a part in causing progressive paralysis of the posterior interosseous nerve, both with and without injury. 2 Posterior Interosseous Nerve Release. Standard Edition (1.130823.130731) Compression of the posterior interosseous nerve can exhibit clinical weakness or functional loss of finger / thumb extension and lack of ulnar wrist extension. Provocative tests can confirm whether the radial tunnel in the region of the posterior interosseous nerve is the. Point E is the posterior interosseous nerve (PIN). Point F is the line from the lateral humeral condyle to the radial styloid. We defined bicipital tuberosity-lateral as a line originating from the bicipital tuberosity (point B) and extending laterally to intersect at right angles with line F (Fig. (Fig.2)

N2 - We have reviewed 38 surgically treated cases of spontaneous posterior interosseous nerve palsy in 38 patients with a mean age of 43 years (13 to 68) in order to identify clinical factors associated with its prognosis. Interfascicular neurolysis was performed at a mean of 13 months (1 to 187) after the onset of symptoms Introduction: The posterior interosseous nerve (PIN) is at risk of injury when surgical procedures are undertaken in the proximal forearm. The aim of the present study was to determine the relationship of the PIN to adjacent anatomical landmarks, which can be used to prevent iatrogenic injury to the nerve 5 RADIAL NERVE AND POSTERIOR INTEROSSEOUS NERVE ANATOMY In Arm. The radial nerve arises from the posterior cord of the brachial plexus. In the proximal third of the arm the nerve descends posterior to the brachial artery and anterior to the long head of the triceps muscle. 1 Distally, at the level of the proximal and middle third portions of the humerus, the nerve moves laterally into the. Posterior interosseous nerve definition at Dictionary.com, a free online dictionary with pronunciation, synonyms and translation. Look it up now Posterior Interosseous Nerve. Pudendal Nerve. Radial Nerve. Sciatic Nerve. Suprascapular Nerve. Tibial Nerve. Ulnar Nerve. Neurography.com provides reports and post-processing in magnetic resonance neurography exams performed at imaging clinics and high quality hospitals

The posterior interosseous nerve (PIN) is one of those nerves learned best by knowing the exceptions. Source: Clinically Oriented Anatomy, 4th edition In this case, the PIN innervates all the muscles on the dorsal side of the forearm , EXCEPT the brachioradialis , extensor carpi radialis longus (ECRL) , and anconeus 1. Introduction. Posterior interosseous nerve (PIN) syndrome refers to an entrapment neuropathy caused by compression of the PIN, a deep branch of the radial nerve, just distal to the elbow. [] PIN syndrome is rare and can be caused by trauma, mass lesions, inflammation, and repetitive stress. [] A few case reports have indicated ganglion cysts as the cause of radial nerve compression

Posterior Interosseous Nerve - an overview ScienceDirect

  1. There is a paucity of information in the neurosurgical literature regarding the surgical anatomy surrounding the posterior interosseous nerve (PIN). The goal of the current study was to provide easily recognizable superficial bone landmarks for identification of the PIN
  2. al branch of the radial nerve and supplies innervation to the extensor carp ulnaris (ECU) and the digital extensors. The PIN passes through the supinator tunnel to enter the dorsal forearm. The supinator tunnel is formed by the two heads of the supinator
  3. Abstract. Radial tunnel syndrome (RTS) and posterior interosseous nerve (PIN) compression syndrome are pathologic conditions that are believed to have the same etiology. Τhe former is characterized by chronic elbow and forearm pain radiating to the wrist and dorsum of the hand and fingers, whereas the latter should be considered when weakness.

Related Anatomy Muscles Extensor digiti minimi Extensor pollicis longus Abductor pollicis longus Extensor pollicis brevis Extensor indicis proprius Extensor digitorum. McBurney's button-hole is an exposure technique for the posterior interosseous nerve quoted in Anrold Kirkpatrick Henry's famous book Extensile Exposures. This short article discusses the overlap between three historical surgeons, Thompson, Henry and McBurney to discover the meaning of the reference and technique, which is used by surgeons to. Background: The aim of this study was to evaluate the terminal branch of the posterior interosseous nerve (PIN) by anatomically and histologically assessing the number, dimension, and area of its individual fascicles, by determining the dimension and area of the whole nerve itself, and by calculating the nerve density ratio (ratio of the sum of the areas of individual fascicles to the area of. posterior interosseous nerve branches, forming a common leash. There were six branches, which were arranged from the ulnar to the radial side at their origin from the common leash. The first and second branches supplied the extensor digitorum communis, the third branch supplied the extensor carpi ulnaris, the fourth branch supplied the extensor digiti minimi, and the fifth branch arose from.

Posterior Interosseous Nerve Syndrome - Physiopedi

  1. by the posterior interosseous branch of the radial nerve. There will be wrist drop (Fig. 9.1) when the radial nerve is injured in the axilla all the muscles supplied by the radial nerve will will be established. To test whether a particular nerve is injured or not, the muscle which is exclusively supplied by intcrpha
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  3. . 8/13/2020. 138 plays. 5.0 (1) EXPERT.
  4. ished in size compared to the deep branch of the radial nerve.The nerve fibers originate from cervical segments C7 and C8
  5. The Radial Nerve divides into the Deep Branch of the Radial Nerve, prior to the supinator and exits as the Posterior Interosseous Nerve. From imgarcade.com. The radial tunnel is the site of nerve compression in both RTS and PINS. The tunnel extends from the level of the radiohumeral joint to distal border of the supinator muscle

The question of how the supinator syndrome and the posterior interosseous syndrome are (or are not) related has not been well discussed in the literature. The anatomy of the radial nerve and its innervations is quite variable, as are the etiology, presentation, and clinical findings in the lesions of the posterior interosseous nerve The posterior interosseous nerve is located close to shaft of the humerus and the elbow. This nerve is the deep motor branch of the radial nerve.Proximal to the supinator arch, the radial nerve is divided into a superficial branch and posterior interosseous branch Isolated posterior interosseous nerve palsy is an uncommon condition and its management is controversial. Existing literature is sparse and a treatment algorithm based on existing best evidence is. pos·te·ri·or in·ter·os·se·ous nerve [TA] the terminal portion of the deep branch of the radial nerve; arises in the cubital region, penetrating and supplying the supinator and continuing with the posterior interosseous artery to supply all the extensor muscles in the forearm. Synonym(s): nervus interosseus antebrachii posterior [TA], dorsal.

Posterior interosseous nerve(PIN) syndrome is an entrapment of the deep branch of the radial nerve just distal to the elbow joint. It is caused by acute trauma or masses compressing the nerve. We report an unusual case of PIN syndrome with wrist drop caused by compression of the nerve by anomalous vascular leash. The patient ha Entrapment of the posterior interosseous nerve may mimic a tennis elbow and its occurrence must be considered when there has been failure of treatment for a tennis elbow. Common elbow conditions: chronic overuse is the most common reason for elbow injur posterior interosseous nerve are compara-ble.8 Factors that influence recovery from nerve injury include the patient's age, length of defect, and interval to surgery. The use of sural nerve grafts to bridge defects in the radial nerve have also shown satisfactory results9,10; however The posterior interosseous nerve appeared flattened after cutting the arcade of Frohse, suggesting that the interosseous nerve had been trapped between the anteriorly swollen elbow joint and the arcade . The patient started to regain the ability to extend her right fingers 18 days after the operation. Full extension was possible 5 weeks after. The posterior interosseous nerve (PIN) is quite a fascinating nerve. It wraps around the radial neck akin to the fibular nerve wrapping around the fibular neck. It can be compressed by the arcade of Frohse in a fashion similar to median nerve entrapment by the carpal tunnel. Furthermore, it divides into a number of branches, a simulacrum of the cauda equina, as it emerges from the supinator.

Synovial osteochondromatosis that causes posterior interosseous nerve palsy has a characteristic morphology and location, that is, a giant tumor located anterior to the humeroradial joint, as revealed by three-dimensional magnetic resonance image reconstruction Posterior interosseous hermo (tai selkä interosseous hermo ) on hermo kyynärvarren. Se on säteen hermon syvän haaran jatko sen jälkeen, kun se on ylittänyt supinaattorilihaksen . Sen koko on huomattavasti pienempi kuin säteittäisen hermon syvä haara . Hermokuidut ovat peräisin kohdunkaulan segmenteistä C7 ja C8 The anterior interosseous nerve (AIN) is the terminal motor branch of the median nerve. It branches from the median nerve in the proximal forearm just below to the elbow joint. It is about 5-8 cm distal to the lateral epicondyle and 4 cm distal to the medial epicondyle. It then passes between the two heads of the pronator teres muscle to run deep along the interosseous membrane along.

Transfer of supinator motor branches to the posterior

Allagui M, Maghrebi S, Touati B, Koubaa M, Hadhri R, Hamdi MF, Abid A: Posterior interosseous nerve syndrome due to intramuscular lipoma. Eur Orthop Traumatol. 2014, 5:75-9. 10.1007/s12570-013-0203-5; Salama H, Kumar P, Bastawrous S: Posterior interosseous nerve palsy caused by parosteal lipoma: a case report. Case Rep Med. 2010, 2010:785202 The authors chose not to explore the nerve, as the literature reports that the posterior interosseous nerve injuries are usually due to indirect nerve compression by the anterior fragment of the radial head or by the joint hematoma. 1 1. Daurka J, Chen A, Akhtar K, Kamineni S. Tardy posterior interosseous nerve palsy associated with radial head. intramuscular injection on the radial nerve at this region. The posterior interosseous nerve may Tl nerve roots may be affected, though Tl is more often involved. The result is paralysis of the of hemiparesis of the tongue d ue to nerve and the nerve to the sub-davius, the abductors and lateral rotators of the shoulder (deltoid, (1) Tactil e tested :-of humerus when the median, the ulnar or.

Posterior Interosseous Nerve: Everything You Need to Know

Posterior interosseous nerve syndrome Radiology

PIN (posterior interosseous nerve) syndrome is one of the compression neuropathies of the radial nerve near the elbow or in the forearm. This is an uncommon condition and very challenging to diagnose. Electromyography (EMG) and Nerve Conduction Studies (NCS) are commonly used in the evaluation of this syndrome Posterior interosseous nerve syndrome is a compression neuropathy of the PIN, which innervates the extensor compartment of the forearm. This syndrome results from trauma (such as incurred by a fracture of the radial head), or spontaneous compression. Known sites of compression by the supinator muscle include the Arcade of Frohse and the radial.

Posterior Interosseous Nerve Syndrome - Radsource

  1. Fig. 1 Schematic drawing (anterior view) of the proximal posterior interosseous nerve (deep branch of radial nerve) before its entrance into the supinator muscle. Fig. 2 Schematic drawing (posterior view) of the posterior inteross-eous nerve as it leaves the supinator muscle in this case before traveling throughout the muscle'sentirety
  2. The posterior interosseous nerve (PIN) is susceptible to a number of traumatic and atraumatic pathologies. In this article, we aim to review our current understanding of the etiology, pa-thology, diagnosis, treatment options, and published outcomes of atraumatic PIN palsy. I
  3. Chronic complete posterior interosseous nerve (PIN) palsy is a recognized but uncommon sequela of the type I Monteggia elbow fracture-dislocation in children. This report describes combined radial nerve exploration with PIN neurolysis and surgical reconstruction of a chronic type I Monteggia injury in a child. PIN subluxation followed b
  4. Posterior interosseous nerve paralysis caused by fibrous band compression at the supinator muscle. Acta Orthop Scand 1976;47:304-7. 6. Maffulli N, Maffulli F. Transient entrapment neuropathy of the posterior interosseous nerve in violin players. J Neurol Neurosurg Psych 1991;54:65-7. 7. Silverstein A. Progressive paralysis of the dorsal.
  5. Abstract We report a retrospective series of 44 transfers in 26 patients in whom a functioning supinator nerve was transferred to a paralyzed posterior interosseous nerve through a single, anterior approach to re-animate hand opening in mid-cervical tetraplegia
  6. The radial nerve divides into a superficial branch (sensory only) and a deep branch (posterior interosseous nerve) at the lateral elbow. Forearm pain that is exacerbated by repetitive forearm.
Median nerve

The posterior interosseous nerve and the posterolateral

The posterior interosseous nerve is the deep motor branch of the radial nerve supplying the majority of the forearm and hand extensors (including the extensor carpi radialis brevis, supinator, extensor digitorum communis, extensor digiti quinti, extensor carpi ulnaris, abductor pollicis longus and brevis, and extensor indicis proprius) Posterior interosseous nerve (C7-8) is a branch of the radial nerve that supplies motor innervation to the forearm extensor muscles. Compression or injury can cause an isolated PIN palsy. More proximal pathologies can cause a combined palsy. More common in body builders and laborers due to repetitive pronosupination The posterior interosseous nerve syndrome happens due to compression injuries or stretching that can occur as the nerve passes under the supinator muscle (Arcade of Fohse) in the forearm. It can be caused by entrapment if the supinator muscle is unusually large or tight or due to adhesions between the muscle and the nerve Posterior Interosseous Nerve Entrapment. June 22, 2020 Filed in: Upper Limb. Sensation and motor control of the arm is supplied by many different peripheral nerves. These nerves arise from the spinal cord as nerve roots and continue down into the arm where they branch off into smaller nerves, such as the radial, median and ulnar nerve

Posterior Interosseous Nerve Syndrome - StatPearls - NCBI

These data would favor an inflammatory pathophysiology when a structural lesion compressing the nerve is ruled out with imaging. AB - Introduction Different hypotheses have been proposed for the pathophysiology of posterior interosseous nerve (PIN) palsy, namely compression, nerve inflammation, and fascicular constriction Objective. In our clinical practice, we have noted a caliber change of the posterior interosseous nerve (PIN) at the elbow as seen in the long axis on sonography simulating nerve entrapment. The objective of this study was to characterize the PIN using sonography in asymptomatic individuals. Methods. Our study retrospectively characterized the PIN in 50 elbows of 47 asymptomatic patients with. The posterior interosseous nerve travels along the posterior aspect of the forearm between the ulna and the radius. The posterior interosseous has its roots in the cervical spine (C6, C7, C8) and arises as a branch from the radial nerve. Coding: CPT has several codes (64732-64772) relating to the excision or transection of the nerves Posterior interosseous nerve (PIN) compression syndrome is a condition resulting from the compression of the deep branch of the radial nerve, which may lead to paresis or paralysis of the fingers and thumb. Anatomically, there are five potential sites for nerve compression in its course along the radial tunnel, the Arcade of Fröhse being the most usual Posterior interosseous neuropathy is associated with several causes, including extrinsic compression of the nerve by ganglion, lipoma, or abnormal vessels, or entrapment beneath the arcade of Frohse, the fibrous opening in the superficial head of the supinator muscle. 1 In our case, entrapment neuropathy was considered in view of ultrasound imaging demonstrating swelling of the posterior.

Posterior Interosseous Nerve Syndrom

Posterior interosseous nerve compression is a well-described clinical entity with many aetiologies. Fewer than 12 documented cases of the condition due to an enlarged bicipital bursa exist in the literature. We describe a case in which magnetic resonance imaging (MRI) was used in the pre-operative assessment of a mass in the proximal forearm. Bilateral posterior interosseous nerve palsy in a rheumatoid patient is described. Six previous case reports and our experience indicate that steroid injection into the elbow may not produce lasting recovery and may lead to unacceptable delay before surgical decompression. An anterolateral approach for division of the arcade of Frohse is effective in cases with diffuse synovitis; where there. Posterior interosseous nerve palsy is a rare occurrence and involvement bilaterally is the first of such kind which has not been reported in the literature. Biography : Satish Babu Janipireddy has completed his DNB (Orthopedics) from National Board of Examinations in India. He has then moved to the UK in 2007 to pursue a Research degree MCh. proximal radial nerve lesions at the upper arm level with a predominant lesion focus 8.3 6 4.6 cm proximal to the humeroradial joint. Most of these lesions (75%) followed a specific somato-topic pattern, involving only those fascicles that would form the posterior interosseous nerve more distally Posterior interosseous artery (Arteria interossea posterior) The posterior interosseous artery is the smallest terminal branch of the common interosseous artery.It is located deep within the posterior compartment of forearm.. The posterior interosseous artery gives off the recurrent interosseous artery, as well as several muscular and perforating fasciocutaneous branches

Posterior Interosseous Nerve Syndrome/Palsy

Posterior interosseous nerve palsy can be broadly categorized as compressive and non-compressive, and the existing evidence supports surgical intervention for compressive palsy. For posterior interosseous nerve pathology with no compressive lesion on imaging, conservative management should be tried first Learn the Supinator to Posterior Interosseous Nerve Transfer (S-PIN transfer) surgical technique with step by step instructions on OrthOracle. Our e-learning platform contains high resolution images and a certified CME of the Supinator to Posterior Interosseous Nerve Transfer (S-PIN transfer) surgical procedure

The posterior interosseous nerve Anatomy : Nerves of Upper

Entrapment of the posterior interosseous nerve does not usually have any long-term effects, if it is properly diagnosed and appropriately treated. If left untreated, it can lead to ongoing pain in the elbow and a prolonged lay-off from exercise and sport. In some situations, this may occur despite appropriate treatment An 83-year-old woman presented with weakness in her right-hand and wrist extensors and swelling in the proximal part of the right forearm. Electromyography (EMG) confirmed involvement of posterior interosseous nerve at the level of proximal forearm. MR imaging demonstrated the characteristics of lipoma which extended on the anterolateral aspect of the right forearm and at the level of the.

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Anatomical Course. The radial nerve is the terminal continuation of the posterior cord of the brachial plexus.It therefore contains fibres from nerve roots C5 - T1. The nerve arises in the axilla region, where it is situated posteriorly to the axillary artery.It exits the axilla inferiorly (via the triangular interval), and supplies branches to the long and lateral heads of the triceps brachii A muscle splitting approach was utilized to locate the posterior interosseous nerve (PIN) at the point where it emerges from beneath the supinator. The supinator was carefully incised to expose the midpoint length of the nerve as it passes into the forearm while preserving the associated fascial connections, thereby preserving the relationship. posterior interosseous nerve entrapment could be a couse of lateral elbow pain. To as­ certain this the following investigations were carried out: I. Patients with lo.ngstanding lateral elbow pain in whom entrapment of the posterior interosseous nerve was the suspected couse of pain were operated on by decom Great care must be exercised in exposing the posterior interosseous nerve. The following should be kept in mind: Proximally, watch for the branches to the brachioradialis and the extensor carpi. nervo interosseo posteriore (it); 後骨間神経 (ja); nervus interosseus antebrachii posterior (nn); Nervus interosseus antebrachii posterior (la); nervi interossi posterior de l'avantbraç (ca); Nervus interosseus antebrachii posterior (de); posterior interosseous nerve (en); عصب بين العظمين خلفي (ar); 後骨間神經 (zh. T. Bonczar et al., The terminal branch of the posterior interosseous nerve nerves injuries [1, 4, 9, 17, 18]. A recent publication has described the technique of thumb digital nerve reconstruction after the excision of a neuroma utilis - ing an arterialised PIN graft [12]. The assessment of the usefulness of PIN as a nerve graft was based o