Nuances of preoperative planning of total hip arthroplasty in patients with hip dysplasia

Cover Page

Cite item


Purpose of the study - to evaluate in different groups of patients variability of anatomical changes that may affect the difference in the length of the lower extremities and affect on the results of the preoperative planning. Material and methods. As study material we used long film X-ays of 142 patients. A main group comprised 69 patients with varying severity of hip dysplasia. Control group consisted of 73 patients without hip pathology. All patients were performed long film X-rays, and measurements of relative and absolute lengths of the lower limbs, followed by analysis of the data. Results. Analysis of the measurements showed that none of the patients had absolutely equal length of the lower limbs, even in the control group in 56.2% of the observations noted the absolute difference of the lower extremities length more than 5 mm, and in 9.6% of patients - from 20 to 35 mm. In assessing the difference of the lower extremities length on AP pelvic view in the main group only one patient of 69 had the same length of the legs, and in 61 cases the difference was more than 5 mm, that it was clinically significant. Of practical interest is the fact that in the main group shortening of the operated limb was observed in 51 of 69 patients in AP views of the pelvis, but the results of measurements of the anatomical length of limbs long film X-rays compared with measurements of the relative shortening on the pelvis AP views showed that clinically significant difference exceeding 5 mm between measurements observed in 68.1% of cases. The greatest difference between the measurements of the limbs length on the pelvis AP views and long film X-rays observed in patients with unilateral hip dislocation and averaged 17.0 mm. Conclusion. Performing preoperative planning in patients with dysplasia only on pelvis AP views not allow properly compensate the difference of the lower extremities lengths, which may adversely affect the functional results of surgery and as a result, the patient’s satisfaction. Therefore, planning THA, especially at high hip dislocation, it is necessary to calculate the difference of the lower extremities lengths considering as the difference of the lengths on AP pelvis views and long film X-rays.

About the authors

R. M. Tikhilov

Vreden Russian Research Institute of Traumatology and Orthopedics, Mechnikov North-Western State Medical University

director Russian Federation

I. I. Shubnyakov

Vreden Russian Research Institute of Traumatology and Orthopedics

Academic secretary Russian Federation

A. O. Denisov

Vreden Russian Research Institute of Traumatology and Orthopedics

head of hip pathology department Russian Federation

A. A. Boyarov

Vreden Russian Research Institute of Traumatology and Orthopedics

Author for correspondence.
assistant researcher Russian Federation

M. A. Cherkasov

Vreden Russian Research Institute of Traumatology and Orthopedics


postgraduate student

Russian Federation


  1. Абельцев В.П. Эндопротезирование тазобедренного сустава при диспластическом коксартрозе (оптимальные методы лечения): автореф. дис. … д-ра мед. наук. М.; 2004. 49 с.
  2. Тихилов Р.М., Шубняков И.И., Плиев Д.Г. Руководство по хирургии тазобедренного сустава. СПб.; 2015. Т. 2. Гл. 10. С. 7-24.
  3. A ustin M.S., Hozack W.J., Sharkey P.F., Rothman R.H. Stability and leg length equality in total hip arthroplasty. J Arthroplasty. 2003; 18, Suppl. 1:88-90.
  4. Crowe J.F., Mani V.J., Ranawat C.S. Total hip replacement in congenital dislocation and dysplasia of the hip. J Bone Joint Surg. Am. 1979; 61:15-23.
  5. Konyves A., Bannister G.C. The importance of leg length discrepancy after total hip arthroplasty. J Bone Joint Surg. Br. 2005; 87(2):155-157.
  6. Lecerf G., Fessy M.H., Philippot R., Massin P., Giraud F., Flecher X., Girard J., Mertl P., Marchetti E., Stindel E. Femoral offset: anatomical concept, definition, assessment, implications for preoperative templating and hip arthroplasty. Orthop Traumatol Surg Res. 2009; 95(3):210-219.
  7. Miller C.D., Stiltner A.R., Cui Q. Preoperative planning for hip surgery. In: Brown T.E., Cui Q., Mihalko W.M., Saleh K.J. (eds). Arthritis and arthroplasty. 1st ed. Philadelphia: Saunders Elsevier; 2009. p. 24-33.
  8. Murzic W.J., Glozman Z., Lowe P. The accuracy of digital (filmless) templating in total hip replacement. In: 72nd Annual meeting of the American Academic of Orthopaedic Surgeons. Washington; 2005.
  9. Oddy M.J., Jones M.J., Pendegrass C.J., Pilling J.R., Wimhurst J.A. Assessment of reproducibility and accuracy in templating hybrid total hip arthroplasty using digital radiographs. J Bone Joint Surg. Br. 2006; 88:581-585.
  10. W hite S.P., Shardlow D.L. Effect of introduction of digital radiographic techniques on preoperative templating in orthopaedic practice. Ann R Coll Surg Engl. 2005; 87:53-54.
  11. Zhang Y, Chang F, Wang C, Yang M, Wang J. Pelvic reference selection in patients with unilateral Crowe type IV DDH for measuring leg length inequality. Hip Int. 2015; 25(5):457-460. doi: 10.5301/ hipint.5000235.

Copyright (c) 2015

СМИ зарегистрировано Федеральной службой по надзору в сфере связи, информационных технологий и массовых коммуникаций (Роскомнадзор).
Регистрационный номер и дата принятия решения о регистрации СМИ: серия ПИ № ФС 77 - 82474 от 10.12.2021.

This website uses cookies

You consent to our cookies if you continue to use our website.

About Cookies