{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,5]],"date-time":"2026-09-05T22:50:57Z","timestamp":1788648657899,"version":"build-2803163510"},"reference-count":50,"publisher":"Journal of Orthopaedic & Sports Physical Therapy (JOSPT)","issue":"3","content-domain":{"domain":["www.jospt.org"],"crossmark-restriction":true},"short-container-title":["Journal of Orthopaedic &amp; Sports Physical Therapy"],"published-print":{"date-parts":[[2017,3]]},"abstract":"<jats:sec><jats:title>Study Design<\/jats:title><jats:p> Case series. <\/jats:p><\/jats:sec><jats:sec><jats:title>Background<\/jats:title><jats:p> This case series describes a combined program of dry needling and therapeutic exercise in a small group of patients with persistent pain following total knee arthroplasty (TKA). <\/jats:p><\/jats:sec><jats:sec><jats:title>Case Description<\/jats:title><jats:p> Fourteen patients who underwent TKA had persistent postsurgical pain and myofascial trigger points that were nonresponsive to treatment with conventional physical therapy and\/or medication. The patients received a weekly dry needling treatment in combination with therapeutic exercises for 4 weeks. Pain perception was assessed preintervention and postintervention with a visual analog scale and function was assessed with the Western Ontario and McMaster Universities Osteoarthritis Index, 6-minute walk test, timed up-and-go test, 30-second chair-stand test, and knee joint range of motion. <\/jats:p><\/jats:sec><jats:sec><jats:title>Outcomes<\/jats:title><jats:p> After TKA, the patients had a mean \u00b1 SD symptom duration of 6.3 \u00b1 3.1 months. Subsequent to dry needling, patients reported a significant mean \u00b1 SD decrease in pain intensity from 55.6 \u00b1 6.6 to 19.3 \u00b1 5.6 (P&lt;.001) and improvements in Western Ontario and McMaster Universities Osteoarthritis Index scores from 10.1 \u00b1 0.8 to 4.9 \u00b1 1.0 for pain (P&lt;.001), from 5.3 \u00b1 0.4 to 2.4 \u00b1 1.2 for stiffness (P&lt;.001), and from 36.7 \u00b1 2.0 to 20.1 \u00b1 3.2 for function (P&lt;.001). Knee flexion increased from a mean \u00b1 SD of 82.7\u00b0 \u00b1 5.2\u00b0 to 93.3\u00b0 \u00b1 4.3\u00b0 (P&lt;.001), and joint extension improved from 15.8\u00b0 \u00b1 2.9\u00b0 to 5.3\u00b0 \u00b1 2.4\u00b0 (P&lt;.05). The 6-minute walk test also showed improvement in postintervention values from a mean \u00b1 SD of 391.4 \u00b1 23.7 to 424.7 \u00b1 28.4 m (P&lt;.05). <\/jats:p><\/jats:sec><jats:sec><jats:title>Discussion<\/jats:title><jats:p> After dry needling combined with therapeutic exercises, patients who had chronic pain following TKA showed clinically significant improvements in pain, range of motion, function, and myofascial trigger points. Future randomized clinical trials should further investigate the effectiveness of this protocol under similar conditions. <\/jats:p><\/jats:sec><jats:sec><jats:title>Level of Evidence<\/jats:title><jats:p> Therapy, level 4. J Orthop Sports Phys Ther 2017;47(3):209\u2013216. 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