To be on the safe side I am going to suggest “tear”, if you wish to elaborate then fair enough. I don’t have enough context from your query to suggest “boutonniere”...

Triangular Fibrocartilage Complex Injuries: eMedicine Orthopedic ...
23 Jun 2009 ... Injuries to the triangular fibrocartilage complex (TFCC) present as ..... complex injury, triangular fibrocartilage injuries, TFCC, TFC, ...
emedicine.medscape.com › ... ›

No Spanish hits for “ojalamiento”
Ojal - Wikipedia, la enciclopedia libre
Se denomina ojal al orificio realizado en una camisa, chaqueta, abrigo o prenda similar para abrocharla haciendo pasar a través de él un botón. ...
es.wikipedia.org/wiki/Ojal - Cached - Similar
A New Spanish Game | SpanishDict Answers
ojalar -to make button holes. link | flag. Answered Jun 30, 2010. 24k. 214 ...
www.spanishdict.com/answers/117670/a-new-spanish-game/.../f...
Show more results from spanishdict.com

Ojal = buttonhole
http://webcache.googleusercontent.com/search?q=cache:2leFpVl...

Boutonniere deformity refers to a finger that is bent down at the PIP joint and bent back at the DIP joint. This deformity is usually due to an injury, although it can develop in inflammatory disorders such as rheumatoid arthritis. Some people are born with a mild boutonniere posture of most or all of their fingers. The tendons that straighten these finger joints are a complicated network of strings running from the sides and back of the finger to a sheet of tissue (the central slip of tendon) on the top of the finger. When the finger is hit or bent forcefully, the sheet tears away from its attachment to the top of the middle phalanx of the finger. The tear in the tendon sheet looks like a buttonhole ("boutonniere" in French), and the end of the phalanx actually begins to stick through the hole. As a result, the tendons can't straighten the middle joint (which stays bent) and all of the force of the tendons bypasses the PIP joint and goes to the DIP joint which flips backward. The problem can also result from a laceration on the back of the finger.



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Note added at 1 hr (2010-10-28 14:18:18 GMT)
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AND

xtending through either the proximal surface, distal surface, or both in the case of a full thickness tear. Linearity of the abnormal signal as well as visualization of the signal on T-1 and T-2 weighted images strengthens the diagnosis. An associated secondary sign is chondromalacia of the ulnar head. Due to the treatment implications of the variable vascularity of different regions of the TFC, the location of the tear is important. Peripheral TFC tears due to their vascularity retain the potential for healing and can often be treated non-operatively. More common central TFC lesions are avascular and are therefore treated with debridement. Peripheral tears near the ulnar attachment are often the least accurately diagnosed due to the presence of vascularized fibrous tissue in this location which can yield a high signal intensity mimicking a tear. Such peripheral tears are associated with instability of the DRUJ. A recent study has suggested MR arthrography following intra-DRUJ injection of iodine- and gadolinium-containing contrast agents to increase accuracy in diagnosing peripheral TFC tears.

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Note added at 1 hr (2010-10-28 14:19:18 GMT)
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from this site

http://webcache.googleusercontent.com/search?q=cache:kEJ_m0t...

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Note added at 1 hr (2010-10-28 14:20:13 GMT)
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Feature Article 05/15/99 - Laguna Medical Systems
The triangular fibrocartilage (TFC) is a triangular-shaped cartilage disc. ... The tear in the tendon sheet looks like a buttonhole ("boutonniere" in ...
www.lagunamedsys.com/.../feature051599.htm - Cached - Similar

tear that looks like a buttonhole

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Note added at 1 hr (2010-10-28 14:25:14 GMT)
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amendment

buttonhole tear

Rotator cuff tear - Wikipedia, the free encyclopedia
These can be small pin-point tears or larger button hole tears or tears ... pain is variable and does not always correspond to the size of the tear. ...
en.wikipedia.org/wiki/Rotator_cuff_tear - Cached - Similar

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Note added at 6 hrs (2010-10-28 19:06:11 GMT)
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Hi

likewise you could use

perforation

:)

http://www.google.co.uk/search?q=button hole perforation fib...

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Note added at 6 hrs (2010-10-28 19:12:22 GMT)
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Yep

tears and ruptures

are both possibilities

http://books.google.co.uk/books?id=67UjC6sFy04C&pg=PA200&lpg...

Cheers!

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Note added at 6 hrs (2010-10-28 19:14:48 GMT)
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Magnetic resonance imaging of the triangular fibrocartilage ...
by JR Skahen III - 1990 - Cited by 27 - Related articles
It has the unique properties of high signal intensity on Ti-weighted im ages, ... (left), pictured with a comparative arthrogram of the same specimen (right). Fig. ... identify perforations or tears of the TFCC because it of the TFCC (Fig. ... This is consistent with the signal observed in the fibrocartilage of the ...
linkinghub.elsevier.com/retrieve/pii/S0363502309900144

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Note added at 6 hrs (2010-10-28 19:15:21 GMT)
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or perforations

!!