Microfracture Surgery

So I had some long standing cartilage damage to my left knee. I went to the surgeon at the BMI Runneymede and had Xrays and MRI's taken which showed that I had medial cartilage damage from poor liftng technique, a small cyst and a lateral femoral tear that seemed to go down to the bone. The surgeon informed me that he could tidy up the torn cartilage and remove the cyst without any problems, but if the lateral tear did indeed go to the bone that he would like to do some microfracture surgery to repair.

I hadn't heard of microfracture before so I started reading around and although it has been around since the late 80's it is still a work in progress. It was actually developed by Richard Steadman, founder of the Steadman Clinic. The basic idea is that if you can make bone bleed the blood is rich in mesenchymal stem cells that can become a number of tissues. So special tools are inserted into the bone to create a rough, broken surface, deep enough to cause bone bleeding. A super clot or blastema then forms over the damaged bone, the bone heals and also new cartilage grows to cover the operated area.

Although new tissue will be formed in 6 weeks there is a long process of tissue remodelling that is required to cause the tissue to become what is required. Articular cartilage that covers the ends of bone is strong and elastic so it can last and absorb the impact forces it is subjected to. Unfortunately the new cartilage that formed during the early years of this technique was fibrocartilage, a much stiffer and less robust cartilage. It seems the great progress in the last 20 years has not been in surgical technique but in rehabilitation. Actually doing the right things to tell the tissue what it needs to become is the main focus of rehabilitation. Unfortunately the physio dept. at the Nuffield Woking seemed only to want me to be walking again and that was the limit of their care.

So post surgery I was non-weight bearing on the left leg for 6 weeks. Not a pleasant experience but it certainly grew my respect for those who use crutches on a daily basis. I was told by my consultant only to do mobilisation exercises for the 6 weeks. This didn't seem consistent with what I was reading so I decided to take control of my own rehab. For 2 weeks I only did mobilisation to get the full range of motion. After that I bought a cycle exerciser from ebay (an exercise bike is fine but place no resistance through the wheel) and started doing 5 mins of cycling twice per day as well as my mobilisation exercises. I very slowly and carefully and watched how my body responded to gauge what was too much. Any swelling or discomfort I took as my limit, when I could complete that without any symptoms I increased the duration. Eventually I built up to 40 mins of unloaded cycling per day.

Another technique I used was Revitive: Circulation Booster. This is a device I have worked on and I had one so I thought I know it improves circulation so it should speed my recovery. I used this 2x per day for 20 mins each time. Again building up the intensity as I got used to it. I would perform my mobilisation exercises after using Revitive: Circulation Booster as I found that I could get much larger ranges of motion after my leg was warmed up. Within a month I had full range of motion back in my leg. I did suffer from swelling in the leg and Revitive: Circulation Booster quickly removed this.

I also kept using my aerosure: youbreathe training device to keep my lung performance up to speed and this helped a lot especially whilst on crutches.

So 6 weeks came and went and when I went back to the surgeon he was very happy with the condition of my knee, full ROM and no pain or swelling. So he took my crutches away and sent me back to physio. I decided to move physio to a team I had used before, Balance Physiotherapy in Clapham North. I saw a knee specialist Paula Coates and she started me on a programme of knee strengthening and flexibility. I cannot jog till next year but I am back swinging my kettlebells which was the main aim for me. I am getting stronger and fitter by the day and knee feels great, very smooth and little discomfort. One important thing Paula added to my rehab is stretching as the quad had shortened from lack of use, getting the muscle back to normal length has been hugely helpful.

The links to some interesting research are here:

Pulsed ultrasound

Pulsed ultrasound observational study

LIPUS in rats

Microfracture rehab 1

Microfracture rehab 2

In my next entry I will describe my nutritional and supplement strategy.

Tune in!