**7.5 Tendinopathies**

In a retrospective study, Stein et al. used BMC for primary Achilles tendon repairs, following traumatic injuries [128]. The BMC was adjunct to augment the surgical correction. Although the study lacked a control group, at a mean followup of 30 months, there were no re-ruptures reported. In a small patient study, centrifuged BMC specimen were injected in patients, refractory to conservative therapies, with clinical and radiological evidence of chronic patellar tendinopathy. Long-term follow-up showed statistically significant improvement in the majority of its reported scores [129]. A series of patients, diagnosed with clinical lateral epicondylitis, were treated with a single-spin BMC protocol. A significant improvement was noted when pre-BMC scores were compared with postinjection scores, at 12-weekpost-intervention. The authors suggested that BMC injections in patients who have failed non-operative treatment, before a surgical intervention, should be considered, and in their belief BMC injections can be developed as second-line conservative treatment in chronic tendinopathy, potentially reversing the degenerative process [130].
