RT Journal Article
SR Electronic
T1 Total knee arthroplasty in a young patient with achondroplasia
JF BMJ Case Reports
JO BMJ Case Reports
FD BMJ Publishing Group Ltd
SP e242909
DO 10.1136/bcr-2021-242909
VO 14
IS 7
A1 Hassan Zmerly
A1 Marco Russo
A1 Manuela Moscato
A1 Ibrahim Akkawi
YR 2021
UL http://casereports.bmj.com/content/14/7/e242909.abstract
AB Achondroplasia is a genetic skeletal dysplasia, characterised by dwarfism, with upper and lower limb deformities, that can lead to knee osteoarthritis; the surgical treatment is a challenge due to the particular joint anatomy variances. We present a 40-year-old woman, affected by achondroplasia with severe left knee osteoarthritis; the patient was treated conservatively with poor results. Between the ages of 12 and 17 years, she underwent multiple operative procedures for lower limb lengthening and a partial correction of the valgus deformity, by applying an external fixator. The patient was successfully treated with cemented posterior stabilised, fixed-bearing, total knee arthroplasty. The patient affected by achondroplasia, with severe knee osteoarthritis, should be considered for total joint replacement, which can be carried out with or without additional extra-articular osteotomy for alignment correction. Due to skeletal dysplasia in joint deformities, knee replacement requires careful preoperative planning and special technical considerations.