Human growth hormone therapy may increase risk of proximal tibial physeal avulsion fractures
Human growth hormone therapy may increase the risk for proximal tibial physeal avulsion fractures suggests a new study published in the Journal of Bone and Joint Surgery.
Published literature describes slipped capital femoral epiphysis as a complication of recombinant human growth hormone (rhGH) therapy that may be related to decreased physeal strength. The purpose of the current investigation was to utilize a case-control study design to determine whether a greater proportion of pediatric patients sustaining physeal avulsion fractures of the proximal tibia were undergoing rhGH therapy at the time of injury compared with a cohort of matched controls. A case-control design study design was utilized. Patients 4 to 18 years of age with proximal tibial physeal avulsion fractures (cases) or midshaft tibial fractures (controls) at our institution from February 1, 2016, to May 4, 2023, were identified. Cases and controls were matched 1:1 based on age (within 1 year), sex, and body mass index (within 3 kg/m2). A total of 132 patients were included in the analysis (mean age, 13 ± 2 years). rhGH exposure was compared using conditional logistic regression with Firth correction. Results: They found that 11% of the patients with a proximal tibial physeal avulsion fracture were on rhGH therapy at the time of injury compared with 0% of patients with midshaft tibial fractures There was no significant difference in the proportion of sports-related injuries between cases (70%) and controls (67%). Among subjects with proximal tibial avulsion fractures, the proportion requiring surgery did not differ significantly between patients receiving and those not receiving rhGH therapy. This study demonstrates that the proportion of subjects who sustained proximal tibial physeal avulsion fractures and were receiving recombinant human growth hormone therapy at the time of injury was significantly greater than that of an age, sex, and body mass index-matched control group with midshaft tibial fractures (11% versus 0%, respectively, representing 15-times greater odds of exposure). This quantifies a previously unreported serious orthopaedic complication associated with rhGH therapy.
Reference:
Beber, Samuel A. MSc1,2; Gross, Preston W. BS3; Nichols, Erikson BS4; Green, Daniel W. MD, MS1; Fabricant, Peter D. MD, MPH1, a. Strong Association Between Growth Hormone Therapy and Proximal Tibial Physeal Avulsion Fractures in Children and Adolescents: A Case-Control Study. The Journal of Bone and Joint Surgery ():10.2106/JBJS.23.00741, December 21, 2023. | DOI: 10.2106/JBJS.23.00741
Keywords:
growth hormone therapy, proximal tibial physeal, avulsion fractures, Beber, Samuel A. Gross, Preston, Nichols, Erikson, Green, Daniel W, Fabricant, Peter D, the journal of bone and joint surgery, tibial fractures, human growth hormone, hormone therapy, hospital for special surgery
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