Table 1. Nine studies shortlisted reporting the use of PRP injections for GTPS.

PRP: Platelet-rich plasma; GTPS: greater trochanteric pain syndrome; HIPPO: Hip Injections PRP vs Placebo Trial.

Study name	Year	Number of patients	Tendinopathy (Medius and Minimus)	Bursitis	Diagnosis is made using USG/MRI	Number of PRP injection(s)	Duration of relief
Greater Trochanteric Pain Syndrome: Percutaneous Tendon Fenestration Versus Platelet-Rich Plasma Injection for Treatment of Gluteal Tendinosis [5]	2016	30	Yes	No	Yes	Unknown	Improvement at 13 weeks
Ultrasound-guided Platelet-rich Plasma Application Versus Corticosteroid Injections for the Treatment of Greater Trochanteric Pain Syndrome: A Prospective Controlled Randomized Comparative Clinical Study [6]	2020	24	Yes	N/A	Yes	Unknown	Improvement at 24 weeks
Leucocyte-Rich Platelet-Rich Plasma Treatment of Gluteus Medius and Minimus Tendinopathy: A Double-Blind Randomized Controlled Trial With 2-Year Follow-up [7]	2019	80	Yes	No	N/A	Single	Improvement at 2 years
The Effectiveness of Platelet-Rich Plasma Injections in Gluteal Tendinopathy: A Randomized, Double-Blind Controlled Trial Comparing a Single Platelet-Rich Plasma Injection With a Single Corticosteroid Injection [8]	2018	80	Yes	No	Yes	Single	Improvement at 12 weeks
Platelet-rich Plasma Treatment in Patients with Osteoarthritis of the Hip and Greater Trochanteric Pain Syndrome [9]	2018	42	Yes	N/A	Yes	Three	Improvement at 24 weeks
Ultrasound-Guided Subfascial Platelet-Rich Plasma Injections Versus Enthesis Needling for Greater Trochanteric Pain Syndrome: A Randomized Controlled Trial [10]	2024	92	Yes	No	Yes	Unknown	Improvement at 12 weeks
Ultrasound-Guided Platelet Rich Plasma (PRP) Injections for Greater Trochanteric Pain Syndrome (GTPS): A Retrospective Case Series [11]	2013	10	Yes	No	Yes	Unknown	Improvement at 12 weeks
A Double-Blind Randomised Control Trial Investigating the Efficacy of Platelet-rich Plasma versus Placebo for the Treatment of Greater Trochanteric Pain Syndrome (the HIPPO Trial): A Protocol for a Randomised Clinical Trial [12]	2018	102	Yes	N/A	N/A	Unknown	Improvement at 12 weeks
No Attributable Effects of PRP on Greater Trochanteric Pain Syndrome [13]	2019	48 (24 PRP and 24 control)	Yes	No	Yes	Single	At 12 weeks – no improvement noted