Observational studyMedicine2017
A novel classification of the anatomical variations of the first extensor compartment.
Observational study in Medicine, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
5 citing papers in PubMed.
- Intrasheath Tendon Subluxation Beyond the Ankle: The First Case Series in the Hand.Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine · 2025Article
- First extensor compartment morphology and clinical significance: a cadaver series study.Anatomy & cell biology · 2023Article
- Review
- Prevalence of Septated First Dorsal Compartment Among Iranian Patients with De Quervain Tenosynovitis.Medical journal of the Islamic Republic of Iran · 2022Article
- Anomalous course and stenosing tenosynovitis of the extensor pollicis longus tendon at the radial styloid process: A case report.Medicine · 2018Article
Corrections and comments
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The presence of a septum in the first extensor compartment is closely associated with the pathophysiology of de Quervain disease, and affects the efficacy of corticosteroid injection and surgical release. This study aimed to examine the incidence and length of the first extensor compartment septum.Forty sides of the wrists in 20 cadavers were used. The presence of a septum in the first extensor compartment was examined. The septum length was recorded with the radial styloid process as the reference point.The anatomical variations of the first extensor compartment were classified into 3 types. Type I compartment was found in 7 sides in males (29.2%) versus 6 sides in females (37.5%, P = .733), type II was found in 6 sides in males (25%) versus 1 side in females (6.25%, P = .21), and type III was found in 11 sides in males (45.8%) versus 9 sides in females (56.25%, P = .56). There was no significant difference in the septum length between males and females (5.3 ± 2.3 vs 4.8 ± 1.1 mm, P = .54).The incidence of a septum in the first extensor compartment is approximately 50%. The mean septum length is 5 mm. Injection at 5 mm proximal to the radial styloid process has a great chance of delivering the steroids into both subcompartments. Exposure to 5 mm proximal to the radial styloid process can avoid the overlook of subcompartment and achieve adequate decompression of the first extensor compartment.
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