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Br J Sports Med. 2007 Aug;41(8):518-21; discussion 522. Epub 2007 Mar 26.

Ultrasound guided dry needling and autologous blood injection for patellar tendinosis.

Author information

1
The Royal Orthopaedic Hospital, Birmingham, UK.

Abstract

OBJECTIVE:

To evaluate the efficacy of ultrasound guided dry needling and autologous blood injection for the treatment of patellar tendinosis.

DESIGN:

Prospective cohort study.

SETTING:

Hospital/clinic based.

PATIENTS:

47 knees in 44 patients (40 men, 7 women, mean age 34.5 years, age range 17 to 54 years) with refractory tendinosis underwent sonographic examination of the patellar tendon following referral with a clinical diagnosis of patellar tendinosis (mean symptom duration 12.9 months).

INTERVENTIONS:

Ultrasound guided dry needling and injection of autologous blood into the site of patellar tendinosis was performed on two occasions four weeks apart.

MAIN OUTCOME MEASURES:

Pre- and post-procedure Victorian Institute of Sport Assessment scores (VISA) were collected to assess patient response to treatment. Follow up ultrasound examination was done in 21 patients (22 knees).

RESULTS:

Therapeutic intervention led to a significant improvement in VISA score: mean pre-procedure score = 39.8 (range 8 to 72) v mean post procedure score = 74.3 (range 29 to 100), p<0.001; mean follow up 14.8 months (range 6 to 22 months). Patients were able to return to their sporting interests. Follow up sonographic assessment showed a reduction in overall tendon thickness and in the size of the area of tendinosis (hypoechoic/anechoic areas within the proximal patellar tendon). A reduction was identified in interstitial tears within the tendon substance. Neovascularity did not reduce significantly or even increased.

CONCLUSIONS:

Dry needling and autologous blood injection under ultrasound guidance shows promise as a treatment for patients with patellar tendinosis.

PMID:
17387140
PMCID:
PMC2465422
DOI:
10.1136/bjsm.2006.034686
[Indexed for MEDLINE]
Free PMC Article
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