Claw Hand, Ape Hand, and the Sign of Benediction: Animated Review

[@FairbrookWingates]

Two years of school, 2 rotations in the field, a whole lot of reading and studying and this is the first time the difference between "ape" and "benediction" has truly been explained. "Aple" hand is the default resting position of median nerve dmg. "Benediction" occurs when a person attempts flexion of all the digits. Got it now, thank you! So simple yet never simple stated anywhere else.

[@Rawia-fz6kh]

ttt&&&&&55fT⅝&555555&5&5

[@RaySiow_MD]

This video worth more than a million dollars, thanks for the video, this is magical!

[@fz4298]

BEST EXPLANATION EVER - heartfelt thanks from a medical student. Please put up more if you would!

[@jasonroberto6474]

InstaBlaster

[@michaelcanino4048]

One of the most well-put-together anatomy videos/explanations I've ever seen. From start to finish everything was incredibly well explained with no room for misinterpretation.

[@Chippyishere]

this should be played in all anatomy classes

[@fcritchey]

Adding to the chorus but seriously, thank you, this is SO well done and I finally understand how these injuries work.

[@lynnwoodcarter3486]

Do u suffer from any?

[@NLKEquestrian]

This explained a confusing 50 min lecture in 8 minutes. Bless.

[@amirgalal8328]

I have an exam tomorrow and you saved my great amount of time by your simple explanation, thank you

[@rediah]

WHAT?!! WHY AM I SEEING THIS TODAY! This video singlehandedly outsmarted professors in my university. Kudos

[@deenonly]

This is the best video I have ever seen in my life explaining these complex issues so clearly...

[@nha8909]

This is so freaking awesome, the fact that you reviewed the muscles and the joint made it so easy. Now I’ll never forget any of these clinical signs

[@eirikdegard4498]

without reading up on the topic, or watching the video. Do you still remember? =)

[@Dr.Boctor]

What a remarkably well-done video that deserves the highest of praise. This should raise the standard for medical education

[@bgtcaho]

Considering my attention span and the amount of information in this video I am truly amazed that I captured pretty much all that was presented.

[@hv889]

You just saved me from 30 hours of studying. You're an MVP. Thanks!

[@anatomyinsight]

this is great! the only thing is that at 6:14 I think the FDP for digits 4 and 5 is also knocked out by an ulnar nerve lesion, so it's only the FDS that contributes to the unopposed flexion...

[@rufussweeneymd]

I noticed that and puzzled over it for a bit. Glad someone else noticed it and commented.

[@saritastreng2673]

@@rufussweeneymd Yes, this was my thought as well.

[@chonsukhavanichsin5635]

FDP is divided above the wrist so it still remains function.

[@chiragmehta585]

So what he showed was a DISTAL ulnar nerve lesion if you look at the point where he put the lesion; at this point, the ulnar nerve has most likely provided its motor innervation to the FDP for digits 4 and 5, which is why they wouldn't be affected (based on where he put his lesion). IF the lesion was more proximal, then you would definitely be correct.

[@hat3039]

At min 6:13 of the video, you mentioned that flexor digitorum superficialis and profundus is active BUT in fact the FDP ulnar part is supplies by Ulnar nerve so the remaining only FDS that will act

[@immunealtair2737]

omar sameer for those that may have the same confusion, the injury to the ulnar nerve in this case is distal, therefore muscles that are proximal to the injury such as FDP will still be innervated by the ulnar nerve and will be able to do the corresponding action.

[@saritastreng2673]

@@immunealtair2737 Thank you. I was so confused by this.

[@faltufaltu2990]

@@immunealtair2737 by reading omar i got same confusion but right next comment you cleared it thanks

[@travelwithdrawal8067]

This is incredible. I was quite overwhelmed by this info in PA school but this is crystal clear.

[@jsamdog]

This explained what several websites failed. Thank you

[@wfshine]

I love you PhDs, the illustration is much more better than MDs.

[@niafisher2093]

THANK YOU SO MUCH! I am a true visual learner so the pictures combined with the excellent explanation helped ALOT. Thank you! - from a stressed PT student

[@emilyshi696]

soooo helpful- i loved how the animations go way beyond solely diagrams. Thank u!

[@lisagonzalez2902]

Hey, this was brilliant! Thanks so much for finding the logic in all of these injuries.

[@JackofAce]

BEST EXPLANATION EVER - heartfelt thanks from a medical student. Exactly what I was going to say.

[@aniktabor7989]

Awesome video. Amazing job at explaining the concepts and great pictorals. Saved it for future review!

[@amitkumar-uw9fz]

Colleges should follow this kind of teaching..which make clear concept in mind...

[@indiandancey]

Please make more videos!! This has been life saving!!!

[@lynnwoodcarter3486]

Do u suffer from any?

[@navesezana6289]

I have experienced tons of struggles till i watched this amazing video, thanks alot!

[@viv2950]

that was absolutely perfect, so logically explained and i love the animation , one would understood even not a medical student

[@Purpledove1e]

This is really the best video about this topic that I have ever watched… THANKYOU ❤

[@1981Anood]

Thanks for making our lives easy.

[@ZVMed]

Thank you so much. I have a test in a few hours and you saved me

[@khmergodhobbies]

I just passed my metacarpal PHD after watching this thorough video. Very informative.

[@amiespence7952]

have to agree with all prior comments - BEST EXPLANATION EVER - thank you

[@radicalarachnid475]

Wonderful explanation with excellent animations. Thanks a ton!

[@TT-vs2ti]

Thank you so much for explaining this concept! It was so confusing for me, but you cleared it up with your thorough explanation with great visuals!

[@Dragon-Slay3r]

Thanks

[@cartsaid1122]

Wow, amazing video and very informative, thank you for your time making this!

[@bluesky-mi2sx]

OMG ! This video is life saving ! Thank you very much

[@DanielWilliamHancock]

Great explanation of the clinical differences between The Hand of Benediction and ulnar claw

[@ericbandar944]

Wow @Doctor Eric Laywell, God bless you and your team. Excellent , Excellent video with explanation made super easy.

[@josephineveksler-lam8814]

Thanks very much for explaining the causes of these confusing signs.

[@eishakhalid345]

That was great. Never understood this well in 7 years of med school and internship thanks haha❤

[@folamimorris574]

This was the greatest review ever.

[@brainman709]

This is one hell of a video! Absolutely the best!

[@bensdemosongs]

Clear explanation and helpful animation. This is an incredible vid!

[@aryanshojaeifard936]

Fantastic description. Thank you

[@banuibrahim8676]

I haven't seen a video more interesting and understanding than this.. Wow.. Thank you

[@michaelmike121]

this is quality medical education. This is a standard

[@mariannarudakova1735]

Great videos. Very high quality and get down to the essence of what is important in an approachable way. Please make more animated videos.

[@omercan5996]

We're waiting for another physican guide videos like this one thanks

[@rjb1122]

Fabulous video and presentation. Superb quality.

[@a.m.a5122]

thank you! never been explained better

[@ChongBoy1]

Thanks so much for this, I understand whats happened to me for the last ten years that I hide. Now I at least know what happened after my accident. It was way over my head but I really got the effects and actions very clear! Thanks mate!!!

[@louistung9274]

You have saved my exam. THANK YOU

[@Izsibirisluboviu]

Thank you so much for this video! Best explanation on the topic

[@ostmosis]

Incredible video with excellent visuals. Thanks so much for this!

[@whatwouldhousedo5136]

Perfectly presented- thank you!

[@jamesashton1875]

Very useful video for explaining a previously complicated concept

[@trohanag]

😮 OMG , i have been searching for this years.thank you very much. Sir.

[@exequielborghi]

EXCELLENT!!!!! Hand surgeon level master class!!!!

[@Khan-vm4pz]

Thank you. The best one on the topic by far.

[@lechat489]

Incredibly clear explanations. Thank you!

[@Pheonasa]

Appreciated! Love those animations and explanation you made.

[@ezralimm]

Amazing video and animations. Never quite understood it.

[@indielips26]

You make the best explanations i've seen! Thanks!

[@drzuls]

Correction at 6.10...in claw hand..flexor pull is only bt FDS..not by FDP...4th,5th tendon of FDP supplied by ulnar nerve itself.....thnks...

[@ashlex561]

Best explanation ever!! Thank you so much :)

[@bre1263]

Precisec....concise...clean clear......thanks so much

[@pupsiuspupuliukas2394]

The Soviet school anatomists loved to ask about this during exams. Reminded me of medical school so many years back.

[@nirajatrey9878]

@Doctor Eric Laywell ...just excellent👍👍👍👍

[@tatib7986]

Best explanation EVER!!!!! Now I can really understand it! Thank you

[@duocphamtruongtho4462]

Thank you so much for explaining this concept!

[@ruchithavema6081]

Pls do upload more videos found very useful and this was the best best explain I have seen in this topic..... upload videos on anatomy of PNS and CNS

[@mdebadullah6911]

The best explanation ever!! Thankyou so much doc.

[@Bluddybludster2]

6:13, little bit confused there. You mentioned un opposed FDP 4th and 5th. Isn’t those muscles are also affected when u have Claw hand or Ulnar nerve injury.?

[@49hiram]

Excellent method of clarification .

[@justinhowell2486]

At 6:10 you mention that the the extensor digitorum can't resist against the flexor digitorum superficialus and profundus. But the medial aspect of profundus is innervated by the ulnar nerve. So why is there flexion at the dips of digits 4 and 5 in ulnar nerve lesion?

[@FSUMedMedia]

Thank you for the excellent question. When the ulnar nerve is damaged at the wrist (as shown in this video), flexor digitorum profundus function is not impaired since it receives its motor innervation more proximally (i.e., between the elbow and the wrist); thus, there would still be unopposed flexion at the distal interphalangeal joints of digits 4 and 5. If ulnar nerve damage occurs “higher” (i.e., in the cubital tunnel posterior to the medial epicondyle), then flexor digitorum profundus would lose its motor innervation and there would be a corresponding loss of flexion at the distal interphalangeal joints of digits 4 and 5. In fact, this anatomy is responsible for the Ulnar Nerve Paradox, wherein a more distal lesion of the ulnar nerve results in “worse” symptoms -in this case, tighter or more severe “clawing” of the affected digits. In nearly all other cases of peripheral nerve injury the more distal the lesion, the less severe the symptoms. In the interest of time and clarity, a discussion of the Ulnar Nerve Paradox was excluded from the video.

[@KoKo-dt7lp]

@@FSUMedMedia please are there more videos?

[@Isabella-id6ez]

such a soft voice. I felt in love with your voice. Sending hi from Germany.

[@2010TOXIC]

very good ilustration .. good job

[@kunmunnayak3456]

Excellent animation and explanation

[@sugarhayesajol9785]

Thank you. This really made a lot of sense. Kudos!

[@Neuroandgeneralhospital]

Thanks Dr. Eric. Great work!

[@dishasave9539]

Wow!! I loved the explanation and the visuals

[@eugenias471]

amazing video. if only there were more like this!

[@sunnyD2529]

Awesome job guys, extremely helpful!

[@ryancadogan4504]

thank you very much. Greetings from Jamaica

[@clairel5797]

Amazing explanation and video! 👍🏻👏🏼

[@shreyachhabra3676]

Truly a fruitful one! 🙌 Thank you so much sir! 🙏🌼

[@josephhirmiz468]

I just want to know, how many hours were spent creating this illustration and the overlying narration? Excellent job. Thanks.

[@clairel5797]

Amazing video. You explain very well! 👍🏻

[@stephenwood8382]

Great video but I'm confused about one thing: If the FDS is lost in a high median nerve injury, why then are the PIPs of digits IV and V flexed in the depiction of the Sign of Benediction? Shouldn't these digits only be able to flex the DIPs since only the medial half of the FDP would be intact?

[@dr.matthewjones4661]

That was incredibly helpful, thank you so much

[@niktanakhaei9027]

wonderful ! very clear and complete .

[@doctorelectron5998]

Best video of this topic ❤in the world , love you brother 💞

[@ridaallauddin5364]

very well explained!!!!! splendid!!!

[@ahmedelsabe6542]

Absolutely simply explained!!!

[@Readusogui]

Saved me from my nightmare topic ty very much

[@masterbirdyster]

Perfect explanation!

[@khushalidesai3634]

best video !!!!! the explanation is damn good

[@Ghaffar_KH]

Excellent video!

[@nunchukgrl2]

This was SOOOO well explained!! Thank you!