Platelet Rich Plasma better than Shock Wave for Jumpers' Knee

Jumpers' knee also known as patellar tendinitis is a common problem for basketball and volleyball players among other athletes.  Patients treated with platelet-rich plasma for this condition when compared to shock wave treatment improved more at six and 12 months after treatment.  See abstract below.

This paper adds to the mounting data suggesting PRP is a valuable treatment for chronic tendon related problems such as Jumpers' knee.

MRI of Patellar Tendinopathy

Also Known as Jumpers' Knee

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Am J Sports Med. 2013 Feb 13. [Epub ahead of print]

Platelet-Rich Plasma Versus Focused Shock Waves in the Treatment of Jumper's Knee in Athletes.

Vetrano M, Castorina A, Vulpiani MC, Baldini R, Pavan A, Ferretti A.

Source

Physical Medicine and Rehabilitation Unit, Sant'Andrea Hospital, Sapienza University of Rome, Rome, Italy.

Abstract

BACKGROUND:Tendinopathies represent a serious challenge for orthopaedic surgeons involved in treatment of athletes. PURPOSE:To compare the effectiveness and safety of platelet-rich plasma (PRP) injections and focused extracorporeal shock wave therapy (ESWT) in athletes with jumper's knee. STUDY DESIGN:Randomized controlled trial; Level of evidence, 1. METHODS:Forty-six consecutive athletes with jumper's knee were selected for this study and randomized into 2 treatment groups: 2 autologous PRP injections over 2 weeks under ultrasound guidance (PRP group; n = 23), and 3 sessions of focused extracorporeal shock wave therapy (2.400 impulses at 0.17-0.25 mJ/mm(2) per session) (ESWT group; n = 23). The outcome measures were Victorian Institute of Sports Assessment-Patella (VISA-P) questionnaire, pain visual analog scale (VAS), and modified Blazina scale. A reviewer who was blinded as to the group allocation of participants performed outcome assessments before treatment and at 2, 6, and 12 months after treatment. Nonparametric tests were used for within-group (Friedman/Wilcoxon test) and between-group (Kruskal-Wallis/Fisher test) testing, and the significance level was set at .05. RESULTS:The 2 groups were homogeneous in terms of age, sex, level of sports participation, and pretreatment clinical status. Patients in both groups showed statistically significant improvement of symptoms at all follow-up assessments. The VISA-P, VAS, and modified Blazina scale scores showed no significant differences between groups at 2-month follow-up (P = .635, .360, and .339, respectively). The PRP group showed significantly better improvement than the ESWT group in VISA-P, VAS scores at 6- and 12-month follow-up, and modified Blazina scale score at 12-month follow-up (P < .05 for all). CONCLUSION:Therapeutic injections of PRP lead to better midterm clinical results compared with focused ESWT in the treatment of jumper's knee in athletes.

DNA Sequencing or Magnetic Resonance Imaging MRI

Today, one of the most common tests ordered in the United States is a Magnetic Resonance Image or MRI.  These images are typically ordered of a specific body part or region.  The cost of this type of test is variable ranging from $800 to over $3000 and produces exquisite information anatomic images.  

MRI of Torn Rotator Cuff

An MRI, however, gives the clinician no information about the patients systemic physiology or potential underlying risk factors.  If DNA sequencing can follow Moore's Law from computer science, then the cost should drop to $1000 within five years or perhaps less.  Databases are already being created with numbers reaching over 100,000 patients.  As the cost drops, physicians will begin ordering these tests almost as often as MRIs and we will then see dramatic shifts in the practice of medicine.  The natural history (what happens if no intervention occurs) is different for different patients.  We may be able to predict with DNA sequencing who will recover WITHOUT any specific or expensive treatment.  We also may be able to predict which patients will require aggressive treatment.  The era of personalized genomic medicine will have arrived.  This has broad implications for reducing the cost of care if implemented appropriately. 

Read more about the falling cost of DNA sequencing in the LA Times. 

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