Fun with knees

I’ve said before that I’ve got a tear in the lateral meniscus of my right knee, and that I’m supposed to get that patched up with arthroscopic surgery in less than two weeks. But my right knee is the good one, that until last summer never gave me any problems! It’s my left knee that has been a lifelong troublemaker: I dislocated it while shoveling rocks when I was 13 (child labor is bad, trust me on this) and again when I was in high school playing basketball against the Kent-Meridian High School varsity football team (they didn’t understand that tackling wasn’t part of the official rules.) Both were treated by wrenching my kneecap back into place, and putting me in a hip-to-ankle cast for 3 months. Kids, don’t injure yourself while living in the middle ages.

As long as I was going in for surgery on the right knee, the doctor figured we should check out the left. I had an MRI this week, and just got the text summary, which looks like it’s mostly normal, but with some minor funny business that I can’t tell if it’s in the normal range, or if I ought to get it repaired now, before I retire. I understand all the words, but lack the context to know what to do about it.

EXAM:
MRI KNEE LT WITHOUT CONTRAST

INDICATION:
Meniscal injury, knee,r/o meniscus injury,Internal derangement of left knee

TECHNIQUE:
Multiplanar multisequence knee MRI without contrast

COMPARISON:
Prior radiographs

FINDINGS:
Bones:Patella and trochlear subchondral reactive edema with small cysts.
Normal marrow. Minor patellofemoral osteophytes.

Ligaments, tendons:

ACL, PCL: Normal

Extensor mechanism: Proximal patellar tendinosis. Distal quadriceps normal.
Attenuated anterior fibers of MPFL suspicious for old proximal tear. Also
medial retinaculum. Minor thickening lateral retinaculum.

MCL and post/med corner: Distended bursa versus ganglion cyst along the
posterior/medial corner between pes anserinus and semimembranosus.

Lateral and post/lateral: Normal

Gastrocnemius tendons: Normal

Joint spaces:Small effusion. Minor reactive synovitis suprapatellar recess.
Diffuse patellar and trochlear cartilage loss mostly grade 2 and grade 3 with
small surface area grade 4 both sides. Small subchondral cysts.

Low-grade chondrosis medial, lateral compartments

Soft tissues:

No Baker’s cyst. Diffuse grade 1 muscle fatty infiltration

Tibial, common peroneal nerves: Normal

Menisci:

Lateral:Free edge surface fraying midbody. No definite tear

Medial: Normal morphology, signal

Comment: Abnormal MRI findings very common in asymptomatic volunteers,
frequently not a source of symptoms. Many studies demonstrate meniscal tears
in up to greater than 50% asymptomatic volunteers, cartilage defects >24%, bone
marrow lesions up to 50%, 21% tendon abnormalities, prevalence increasing w
age. Nearly all pain-free adult knees have at least 1 MRI abnormal finding, so
MRI findings must be interpreted under supervision of expert clinical
assessment.

Culvenor et al, Br J Sports Med 2019

Parkar & Adriaensen, Eur Radiol 2024

IMPRESSION:
1. Small effusion, reactive synovitis, patellofemoral cartilage loss
2. Mild patellar tendinosis
3. Suspected old partial tear MPFL retinaculum complex
4. Posterior/medial corner bursal distension versus ganglion or synovial cysts

That’s entertaining, and I appreciated that comment that “Nearly all pain-free adult knees have at least 1 MRI abnormal finding,” so I don’t feel any need to freak out. But I would raise my hand and say that I’m not pain-free, it’s been a chronic source of low-level pain for 50 years, and I don’t know what part of that is relevant to my situation.

I’ll talk to my doctor in the next few days to find out.

What kind of incompetent goofball would schedule maintenance for the last week of classes/finals week?

Yeah, sure, we all put our files/lectures/exams on this central server that we have no control over, and then they do this to us:

For those who don’t know, Canvas is the courseware many schools use for managing various essential class materials for our students.

Maybe I should rethink our reliance on this thing. You know, it used to be we didn’t use software for communications between students and professors.

Quit blaming Loxosceles!

Greg Laden has an excellent post on that Rittenhouse ‘spider bite’. It looked to me like he had a rash on his leg, which could be caused by any number of wicked little beasties — most likely a tick. Rittenhouse did brag about bravely killing a spider, but that could have been a scapegoat he found and killed without evidence, a common practice among right-wingers.

Greg makes a good point, that brown recluses actually are often scapegoats. They are reclusive (it’s even in the name!) and non-aggressive, and as one of the few spiders most people can name, it gets named without cause.

There was even an account on old Twitter to which you could send spider photos for judgment on whether they were a recluse or not. It was entertaining, because most of the photos sent in were not of recluses, and were mostly innocent, harmless spiders that were then murdered by ignorant people. Recluses and black widows are the witches of the spider world.

I had to wonder where Rittenhouse was running into recluses, because they sure aren’t found in Wisconsin. I guess he has moved to Texas. I think Texas is a black hole sucking all the notorious bad actors into it’s gravitational well, but it does have recluses.

The drudgery begins…now

I’m done with classes! Last final given yesterday and grading complete, and grades submitted to the registrar. This does not mean celebration and relaxation, but instead that it’s time to catch up with all the work I’ve put off until now. My goal for today is to clean up the genetics lab — I have a bunch of fly bottles to scrub and autoclave, and all the microscopes have to be reshelved, and I’m going to scrub benchtops. This is why I got a PhD.

I might take time off tomorrow, though. And then commencement is on Saturday. And then my summer is going to be spent tidying up my lab and office and dispersing my huge collection of books. Anyone want some?

I had nothing to do with Kyle Rittenhouse’s recent hospitalization

Rittenhouse has been hospitalized with a spider bite, and I’m getting all this email asking if I was responsible. No, don’t be silly. If I had the power to sic spiders on people I don’t like, Mar-A-Lago and the White House would be so thickly infested with Black Widows and Brown Recluses that the entire Republican ruling class would be dead or hospitalized. I would not start with blubberin’ Kyle, much as he deserves it.

The communists couldn’t take me out and i’ll be damned if I let a brown recluse take me out

So now his paranoia is imagining invisible communists and spiders under his bed. He’s a weird sad sick individual.

Keep crying, killer.

Free speech…unless you criticize the Gaza genocide

Derek R. Peterson, a professor of East African history at the University of Michigan, delivered a speech to the graduating class. It was a nice speech. He praised the activists on campus, and the students cheered.

Sing for the students of the Black Action Movement, whose members demanded a curriculum that would reflect the experience and identity of black people in this country.

Sing for the pro-Palestinian student activities who have over these past two years opened our hearts to the injustice and inhumanity of Israel’s war in Gaza.

The greatness of this institution does not only rest on the shoulders and on the accomplishments of our student athletes who deserve all the congratulations we can offer them.

It was honest, accurate, acknowledged student activists, and didn’t demean any of the people in the crowd. Except…hoo boy, it enraged Zionists and Republicans and Israeli donors to the university. The response was ridiculously over the top.

The same day, the university’s president, Domenico Grasso, issued a public apology, saying the comments were inappropriate and do not represent our institutional position.

We regret the pain this has caused on a day devoted to celebration and accomplishment, Grasso said, adding that Peterson’s speech deviated from the remarks he had shared before the ceremony.

The swift apology did not stop some Republican officials, including Florida Sen. Rick Scott, from calling for the school to be stripped of federal funding. A Republican member of the Board of Regents, which governs the public university, also hinted at possible discipline for the professor. The prominent Israeli-American investor Adam Milstein urged Jewish people to halt any donations to the school.

This is madness. Are they claiming that there is no unjust and inhumane war in Gaza? It’s ongoing. People are starving, they’re being shot by the IDF, their homes are being bombed and bulldozed. Professor Peterson said no lie. Is the institutional position pro genocide? Peterson has made an excellent reply to the hysterical nonsense.

I have respect for Regent Hubbard and her colleagues: theirs is not an easy job, and we here at Michigan benefit from their leadership.

I would however urge Regent Hubbard to review the comments I actually made at yesterday’s commencement. It should not be controversial to have one’s “heart opened to the inhumanity and injustice of Israel’s war in Gaza”, which is what I credited activists with doing. Having an open heart to other people’s suffering is a fundamental human virtue. It is a quality that I hope we teach our students, whatever their political posture might be.

So I am mystified about what I have done to earn Regent Hubbard’s ire. I have – like many of us here in Michigan – been convicted by the evidence of human suffering in Gaza; and I credit my awareness of that to pro-Palestinian activists. That is why I gave the speech that I did. On a day meant to honor students for their accomplishments, I thought it important that we would honor the student activists who have, over the course of time, pushed the institution toward justice.

The University has taken down the commencement video. But here is my talk, if you’d like to hear the whole of it. As you will see, it is a talk about the salience of student activism in this institution’s long history.

Allow me to add, if I may:

The idea that graduations should be apolitical is ridiculous. Michigan is not a finishing school for polite young men and women. Our students are not wilting flowers. They have just finished their degrees at the foremost public university in the country. They can handle controversy.

They do not need sentimental, cloying nostalgia. They need encouragement to face a flawed and unjust world head on, using the tools we’ve given them: critical reasoning, careful research, sympathy for the oppressed.

That is why I spoke as I did. If parents want sentimental graduation ceremonies, perhaps they should send their kids to a different institution. Here at UM we teach our students to face controversies, not run away from them. That’s what being the leaders and the best is about.”

There are a lot of people pushing the idea that a university should be apolitical; they are typically the kind of craven cowards who want to maintain the status quo, no matter how intolerable it might be. Alternatively, they have a political agenda which they want to promote by silencing critics, and they are backed by wealthy and influential supporters who do not question the vicious militants who want to carry out an ethnic cleansing in Israel.

I am shocked by the authoritarian, anti-free-speech actions taken by the University of Michigan and others (what the hell does Rick Scott have to do with Michigan?) who are loudly screeching about their intent to persecute Derek Peterson and the faculty and students of the University of Michigan.

We really need to kick these weird Zionist fanatics out of power.

A handful of students at U.S. universities also faced discipline in 2025 for seeking to highlight pro-Palestinian issues at graduation ceremonies, including a graduate of New York University whose diploma was withheld for criticizing Israel in a speech.

Expressing criticism in a speech is pretty much the definition of free speech, and those creepy zealots are the real opponents of freedom.

Stupid birds don’t like me

I have a yard full of bird-feeders (set up by my wife, not me), every morning is a cacophony of bird song, and I can look out my window and see flocks of birds hopping and flying all over. If I set foot outside my door and look in their direction…forget about it. Instant panic. Birds go winging off in all directions, and the yard is abruptly vacant. I was quick enough to get this one photo of a stupid bird before it too decided I was a nightmarish, terrifying figure.

Spiders don’t do that. Spiders like me. Birds…bleh.

Dogpile on Dawkins

Rebecca Watson takes a swipe at his AI psychosis.

What I’m wondering about now is…who is Dawkins getting advice from nowadays? Years ago, when I was briefly in favor, there was an active assortment of people on a group list maintained by Brockman. There was all kinds of private discussion about the things that were going on among all the high-powered writers and scientists in his stable — if someone was going on TV, for instance, they’d chat among themselves about topics and strategy. Ideas for articles would get floated among the group, often specifically by John Brockman, who would publish a book every year about the answers his people would give (I’m published in a couple of them, for instance).

I imagine there would be a great deal of discussion going on in that group, if it still exists. Epstein was part of it, and Brockman is all tangled up in the Epstein files, so it may not — everyone could be scrambling for cover right now. I was quietly purged long ago, when I exposed myself as a critic of Dawkins and Hitchens and Harris and everyone who was happy to join the “Intellectual Dark Web”, so what do I know.

Anyway, if he were still talking with that group, you’d think they would have told him that blathering about “Claudia” was a tremendously poor idea politically. Is he isolated and alone now, except for the usual mob of sycophants? That bodes ill for him if so, and means we might be getting even more garbage from him in the near future.