WordNet

a function expressed as a sum or product of terms; "the expansion of (a+b)^2 is a^2 + 2ab + b^2"
the act of increasing (something) in size or volume or quantity or scope (同)enlargement
adding information or detail (同)expanding upon
a discussion that provides additional information (同)enlargement, elaboration
belonging to or on or near the back or upper surface of an animal or organ or part; "the dorsal fin is the vertical fin on the back of a fish and certain marine mammals"

PrepTutorEJDIC

〈U〉『拡大』,『拡張』;展開 / 〈C〉拡大(拡張)されたもの / 〈U〉〈C〉(数字で)展開[式]
(植物の)背部の,背の

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1. 急性の手首の疼痛を有する成人患者の評価 evaluation of the adult with acute wrist pain
2. 亜急性または慢性の手首の疼痛を有する成人の評価 evaluation of the adult with subacute or chronic wrist pain
3. 遠位指節間関節（つち指）の伸筋腱損傷 extensor tendon injury of the distal interphalangeal joint mallet finger
4. 限局性脳幹部神経膠腫 focal brainstem glioma
5. 嵌頓包茎整復術 paraphimosis reduction

English Journal

Unusual architecture of extensor digitorum muscle of hand in conjunction with accessory belly of extensor carpi radialis brevis: a clinico-anatomical insight.

Arora J, Dave V, Kumar A, Mehta V, Nayyar A, Suri RK, Rath G, Das S.Author information Department. of Anatomy. Vardhman Mahavir Medical College, New Delhi, India. jyotiarora2005@yahoo.co.inAbstractThe present article highlights an unusual combination of variations of the extensor digitorum and extensor carpi radialis brevis muscles in the dorsum of forearm and hand. The extensor carpi radialis brevis exhibited an accessory musculotendinous belly which inserted into the dorsal digital expansion of index finger. The extensor digitorum showed trifurcation into three distinct parts. Resultant multiple extensor tendon insertion pattern is reported upon highlighting the embryological basis and clinical importance. Knowledge of such anatomical variations adds upon the already existing information in literature and is also of profound interest to the clinician. Anatomical awareness of accessory multiple extensor tendons in the dorsum of hand is essential for successful management of extensor tendon injuries and graft transfer operations.
La Clinica terapeutica.Clin Ter.2013;164(1):31-3. doi: 10.7417/T.2013.1508.
The present article highlights an unusual combination of variations of the extensor digitorum and extensor carpi radialis brevis muscles in the dorsum of forearm and hand. The extensor carpi radialis brevis exhibited an accessory musculotendinous belly which inserted into the dorsal digital expansio
PMID 23455740

Incidence of extensor digitorum brevis manus muscle.

Ranade AV, Rai R, Prabhu LV, Rajanigandha V, Prakash, Janardhanan JP, Ramanathan L, Prameela MD.Author information Department of Anatomy, CBS, Kasturba Medical College, Bejai, Mangalore, Karnataka 575004, India. anuranade@yahoo.co.inAbstractThe extensor digitorum brevis manus, a supernumerary muscle in the fourth extensor compartment of the dorsum of the wrist, is a relatively rare anomalous muscle. Extensor digitorum brevis should be included in the differential diagnosis of soft tissue masses on the dorsal aspect of the hand as it may mimic cystic, neoplastic, inflammatory, and infectious masses arising in the dorsum of the wrist. Seventy-two upper limbs of male and female cadavers were dissected and examined to study the pattern of extensor tendons of the index finger. In the present study, we observed three cases (4.2%) of the extensor digitorum brevis manus on the left side. In one cadaver (0.72%), there was an additional tendon arising from the extensor indices which was inserted to the radial side of the dorsal digital expansion of the index finger. The extensor digitorum brevis manus muscle (EDBM), an anatomic variant of the extensor muscle of the dorsum of the hand, is found in approximately 2% to 3% of the population. This variation is, therefore, clinically and surgically relevant because the EDBM may be the only muscle responsible for the independent extension of the second digit. The aim of the present study is to report the incidences of this muscle thereby creating awareness of its existence and of its characteristic appearance to surgeons.
Hand (New York, N.Y.).Hand (N Y).2008 Dec;3(4):320-3. doi: 10.1007/s11552-008-9111-5. Epub 2008 Jun 19.
The extensor digitorum brevis manus, a supernumerary muscle in the fourth extensor compartment of the dorsum of the wrist, is a relatively rare anomalous muscle. Extensor digitorum brevis should be included in the differential diagnosis of soft tissue masses on the dorsal aspect of the hand as it ma
PMID 18780016

[The Omega "Omega" pulley plasty: a new technique for the surgical management of the De Quervain's disease].

Bakhach J, Sentucq-Rigal J, Mouton P, Boileau R, Panconi B, Guimberteau JC.Author information Institut aquitain de chirurgie plastique, reconstructrice et esthétique, chirurgie de la main et microchirurgie, Pessac, Bordeaux, France. joebakhach@free.frAbstractThe Omega "Omega" pulley plasty: a new technique for the surgical management of the De Quervain's disease. The De Quervain tenosynovitis is an inadequacy into the first extensor compartment between the osteo-fibrous tunnel and the tendons. This mechanical conflict generates a tenosynovitis of the extensor pollicis brevis and the abductor pollicis longus tendons. This is generally expressed by a tenderness on the radial side of the wrist over the radial styloid process. The medical management consists on corticoids infiltrations of the first extensor compartment, the avoidance of repetitive and stress movements of the first ray with the use of a rest splint. The surgical approach is considered with the recurrence of the painful symptoms. This well-known pathology is reputated to require a simple section of the pulley. Our post-operative complications have been reported in the literature of this classical surgical solution. These complications concern an incomplete release of the extensor pollicis brevis and the abductor pollicis longus tendons particularly when an extensor sub-compartment exists and was overlooked, an irritation of the collateral branches of the sensitive radial nerve or the occurrence of a nevroma after a nerve injury and the most serious complication is a palmar subluxation of the extensor tendons which can occur with the thumb extended and the wrist flexed. In rare cases, this subluxation can be really painful and requires a surgical management with secondary reconstruction of the pulley. This reconstruction necessitates distal pedicle flaps from the dorsal retinaculum or the brachioradialis tendon. To prevent these complications, Codega and Kapandji described techniques of reconstruction of the pulley after its release. More recently, Le Viet reported a procedure using the anterior flap of the pulley; fixed to the dermis it will work as a barrier and maintain the tendons sliding on the radial styloid groove. These techniques require to divide the pulley and to reconstruct it suturing the different flaps. It can generate adherences between the extensor tendons, the overlying skin and the collateral branches of the radial nerve. The authors present a new and original plasty procedure of the first extensor compartment pulley, the "Omega" Omega plasty. It consists to liberate the anterior attachment of the pulley over the anterior lip of the styloïd process respecting its continuity with the periosteum flap. This conservative procedure is very interesting; it permits enough expansion of the tunnel volume decompressing the extensor tendons as a treatment of the De Quervain disease and respecting the anatomy and the continuity of the osteo-fibrous tunnel. This technique is simple, reliable and respects the first ray extensor tendons gliding physiology and biodynamic. In spite of our short clinical experience with only ten cases, all the patients retrieve a normal function of the thumb with complete disappearance of the first ray tenderness and pain without any complications. These preliminary results are encouraging and push us to consider the "Omega" plasty as a first choice for the surgical treatment of the De Quervain tenosynovitis.
Annales de chirurgie plastique et esthétique.Ann Chir Plast Esthet.2006 Feb;51(1):67-73. Epub 2005 Aug 15.
The Omega "Omega" pulley plasty: a new technique for the surgical management of the De Quervain's disease. The De Quervain tenosynovitis is an inadequacy into the first extensor compartment between the osteo-fibrous tunnel and the tendons. This mechanical conflict generates a tenosynovitis of the ex
PMID 16099577

Japanese Journal

指背腱膜挫滅損傷の治療 (zone 3〜5)

大井宏之,森谷浩治,斎藤英彦,友利裕二
日本手の外科学会雑誌 = The journal of Japanese Society for Surgery of the Hand 23(5), 543-546, 2006-11-30
NAID 10031153734

Insertions of the Lumbrical and Interosseous Muscles in the Human Foot

OUKOUCHI Hideki,MURAKAMI Takuro,KIKUTA Akio
Okajimas Folia Anatomica Japonica 69(2-3), 77-83, 1992
… The lumbrical muscles mainly continued into the dorsal aponeuroses or the terminal tendons of the extensor digitorum longus muscle, though they occassionally issued some accessory and slender tendons inserting into the bases of the proximal phalanges. … The plantar and dorsal interosseous muscles were mainly attached to the bases of the proximal phalanges. …
NAID 130004650368