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6 years 9 months

Recent Comments

Date Title Body
10/21/2017 - 6:01pm Double bird

Marcus hall style double bird from Tennessee player at the end of that pick-six

10/18/2016 - 12:45am probably ACL+ posterolateral corner

DP... dammit

10/18/2016 - 12:44am probably ACL+ posterolateral corner

My guess, (based on nothing but injury mechanism and that coach says it's not necessarily  career threatening) is that he suffered an ACL + posterolateral corner injury.

PLC injuries can be treated acutely (within first week or 2) by repairing torn ligaments instead of reconstruction (using cadaver tendons to replace damaged ligaments). 

He would then need to wait a few weeks or so to have his ACL reconstructed after the swelling goes down and his knee motion is back to near normal  

10/02/2016 - 2:02am unfortunately, studies on

unfortunately, studies on knee braces for offensive players, especially linemen have shown that knee braces do not lessen the incidence of these injuries

would post the reference, but being blocked by spam filter

02/23/2016 - 11:23pm that is some highliter yellow

that is some highliter yellow

09/02/2015 - 10:46pm sarcasm tag?

sarcasm tag?

07/17/2015 - 1:22am thanks MgoStrength, 

thanks MgoStrength, 

it's obvious that you have thought a great deal about the subject and are not at all defensive regarding differing opinions like others who feel the need to flex their credentials on the blog.  

I guess the difference in our opinions stems from your conjecture (which you rightly acknowledge is theory (no disrespect)) vs what I was trying to highlight as peer reviewed evidence.  maybe part of the disconnect is the difference in terminology used in our fields.  as orthopaedic surgeons we refer to valgus as an increase in the tibiofemoral angle (or amount of knock-knee) not the rotation of one bone relative to the other.  

Ashish Bedi (U-M orthopaedic surgeon) studied hip rotation contributing to ACL tears, and found an increased incidence of injury with restricted hip motion, but this was in relation to femoroacetabular impingement and differences in pivot landing (not how he injured his ACL).  something that we have no reason to believe that Drake Johnson suffers.  

Moreover, many of the in vitro tests of ACL failure study fatigue failure vs catastrophic failure which is the likely mode of failure in live human subjects.  

In addition, as you note, there are differences between studies of passive stability vs dynamic stability and which better represents real-life events. In the end, both of our fields have their own ideas regarding why people tear their ACL.  both of us are probably right (and wrong) to some degree)

Here are some recent orthopaedic reviews regarding risk factors for ACL tears...  

Risk Factors for Anterior Cruciate Ligament Injury

A Review of the Literature — Part 1: Neuromuscular and Anatomic Risk
Slauterbeck, MD,* Javad Hashemi, PhD, Sandra Shultz, PhD, ATC, and  Bruce D. Beynnon, PhDcorresponding author*

Noncontact Anterior Cruciate Ligament Injuries: Mechanisms and Risk Factors

  1. Timothy E. Hewett, PhD




Gotta throw my credentials out there

Dr Vorax............

07/15/2015 - 1:16am biomechanics

I appreciate the mechanics discussion, and I don't want to be condescending, but there are a few well defined risk factors for ACL tears.  These are implicated in an increased incidence of adolescent females tearing their ACL compared to their male counterparts.  These scientifically validated reasons include diminished ratio of hamstrings strength to quad strength and anatomy of the intercondylar femoral notch in females (smaller than males).  This is obviously not Drake's problem...

non-contact ACL-tears like Drake's are the norm and are more common in people who have had an ACL reconstructed previously, so not totally surprising....

People are different in now much rotation exists in their femur and tibia and how much their toes point out when they walk.  (duck foot vs pigeon toed)  that has never been shown to affect their likelihood of tearing their ACL


Long story short... Go on Drake.  Keep up the good rehab and kill it this fall

Dr Vorax



12/03/2014 - 11:53pm that values me highly...

that values me highly...

12/01/2014 - 1:37am Are you sure you are not Tom

Are you sure you are not Tom Brady?  

I went to school with Tom Brady and you sound like Tom Brady

09/05/2014 - 1:19am It will be... except for the

It will be... except for the aftermath

I don't expect to be shaking hands with Lee Bollinger in his living room after the game.

Maybe the new prez?

08/19/2014 - 10:54pm Tyrone Butterfield... Lived

Tyrone Butterfield... Lived next door to him my freshman year. He would be happy to be listed at 5 foot 5, much less 5 foot eight (officially)

07/26/2014 - 4:03pm George who???
Never heard of

George who???

Never heard of him.

05/24/2014 - 5:33pm only if she's 5'3"

only if she's 5'3"

08/20/2013 - 11:55pm best




thread over

07/21/2013 - 11:31am And


05/25/2013 - 2:23pm What?

03/29/2013 - 10:30pm JERRYDEMPTION

it's karma

03/29/2013 - 10:05pm JERRYDEMPTION!!!!!!!!!!!


03/27/2013 - 9:47pm See Morris:


11/17/2012 - 6:54pm Tibia fracture

4 month until the bone heals, 9-12 months until full recovery. Probably faster than recovering from an ACL

07/08/2012 - 2:26am actually type II error

Forgive me, I'm studying for boards now...

Type I error is finding that different groups are different when they actually are not

Type II error  is failure to reject the null hypothesis when the two outcomes actually are differrent

In this case, the null hypothesis would be that no abuse occurred

06/23/2012 - 10:59pm Thorazine. Pretty good

Thorazine. Pretty good anti-psychotic. Even better for hiccups

05/02/2012 - 11:36pm +5

MgoPoints if I could...

03/10/2012 - 12:20am BEAT OHIO




03/09/2012 - 12:49am BTW... That gopher may be

BTW... That gopher may be disgusting, but is incredibly aggressive.  Just ask Kenny Demens