Compression of the ulnar nerve and spasm of the ulnar artery in Guyon's canal caused by a hypermobile pisiform bone

Saint‐Cyr, Michel; Kleinert, Harold E.

doi:10.1080/02844310601029944

Cited by 5 publications

(3 citation statements)

References 4 publications

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“…Ulnar neuropathy secondary to pisiform hypermobility managed with pisiformectomy completely resolved symptoms by the 1-year mark. 75 Similar symptoms caused by an acute pisiform fracture treated with pisiformectomy relieved pain and restored range of motion in as little as 11 months. 76 Chronic PT arthrosis has an assortment of etiologies including trauma, repetitive sports overuse, chondromalacia, FCU tendinopathy, and osteoarthritis, all of which show overwhelmingly positive results following pisiformectomy.…”

Section: Pisiformmentioning

confidence: 95%

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Isolated Osseous Excision in the Adult Carpus: A Narrative Review

Dolan,

Shiver,

Wallace

et al. 2024

Journal of Hand and Microsurgery

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Various pathologies of the adult carpus result in clinical scenarios where excision can be considered and even recommended. In the appropriate patient population, isolated carpal excision can alleviate pain and improve mobility. Excisions of the pisiform, trapezium, and trapezoid have abundant literature evidence to support positive long-term functional outcomes. In contrast, isolated excision of the capitate, hamate, and triquetrum has limited support in the literature secondary to compromise of carpal mechanics and lead to recurrent pain. Additionally, isolated scaphoid and lunate excision are best avoided secondary to carpal collapse and should be paired with concomitant stabilizing procedures in the carpus. This article provides a comprehensive literature review of isolated excision of each osseous carpal bone, their indications, and previously assessed outcomes.

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Section: Pisiformmentioning

confidence: 95%

Section: Pisiformmentioning

confidence: 95%

Isolated Osseous Excision in the Adult Carpus: A Narrative Review

Dolan,

Shiver,

Wallace

et al. 2024

Journal of Hand and Microsurgery

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“…Six studies [47][48][49][50][51][52] describe 6 patients (3 males, 3 females, mean age 41.7 years) with various structures compressing the ulnar nerve. These structures include an aberrant triceps brachii slip, 48 flexor digiti minimi brevis muscle, 47 anconeus epimedialis muscle, 49 constriction band, 51 a hypermobile pisiform bone, 52 and supracondylar process. 50 All 6 patients underwent surgical decompression of the ulnar nerve resulting in either partial or complete remission of symptoms.…”

Section: Singular Casesmentioning

confidence: 99%

Uncommon Anatomical Causes of Ulnar Compression

Natroshvili,

Roorda,

van Doorn

et al. 2024

Ann Plast Surg

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Objectives Some patients develop ulnar nerve compression due to rare anatomical variations or malformations. The aims of this review are to provide a comprehensive overview of anatomical structures and variations that can cause ulnar nerve compression and to evaluate treatment options. Methods Case reports and case series about rare cases of unusual ulnar nerve compression published from January 2000 until April 2022 were obtained from databases Embase, MEDLINE, and Web of Science. A total of 48 studies describing 64 patients were included in our study. Results The following structures have proven to cause ulnar nerve compression: anconeus epitrochlearis, accessory abductor digiti minimi, vascular anomalies, palmaris longus, fibrous bands, and flexor carpi ulnaris. All cases except one have had a surgical release of the ulnar nerve resulting in diminished symptoms or complete recovery at follow-up. Conclusions In addition to considering common compression points, it is important to be aware that proximal compression symptoms, such as pain and a positive Tinel sign at the medial elbow, may be attributed to a hypertrophic AE or vascular anomaly. Distal compression symptoms encompass swelling, along with pain and a positive Tinel sign at the distal forearm. Various structures contributing to distal compression include an accessory abductor digiti minimi muscle, an accessory or anomalous palmaris longus muscle, or an accessory or hypertrophic flexor carpi ulnaris muscle. The occurrence of fibrous bands exhibits variability, manifesting in diverse locations across the arm. Level of Evidence: IV

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