Medical Dialogues
  • Dermatology
Login Register
This site is intended for healthcare professionals only
Login Register
  • MD Brand Connect
  • Vaccine Hub
  • MDTV
    • Breaking News
    • Medical News Today
    • Health News Today
    • Latest
    • Journal Club
    • Medico Legal Update
    • Latest Webinars
    • MD Shorts
    • Health Dialogues
  • Fact Check
  • Health Dialogues
Medical Dialogues
  • Medical News & Guidelines
      • Anesthesiology
      • Cardiology and CTVS
      • Critical Care
      • Dentistry
      • Dermatology
      • Diabetes and Endocrinology
      • ENT
      • Gastroenterology
      • Medicine
      • Nephrology
      • Neurology
      • Obstretics-Gynaecology
      • Oncology
      • Ophthalmology
      • Orthopaedics
      • Pediatrics-Neonatology
      • Psychiatry
      • Pulmonology
      • Radiology
      • Surgery
      • Urology
      • Laboratory Medicine
      • Diet
      • Nursing
      • Paramedical
      • Physiotherapy
  • Health news
      • Doctor News
      • Government Policies
      • Hospital & Diagnostics
      • International Health News
      • Medical Organization News
      • Medico Legal News
      • NBE News
      • NMC News
  • Fact Check
      • Bone Health Fact Check
      • Brain Health Fact Check
      • Cancer Related Fact Check
      • Child Care Fact Check
      • Dental and oral health fact check
      • Diabetes and metabolic health fact check
      • Diet and Nutrition Fact Check
      • Eye and ENT Care Fact Check
      • Fitness fact check
      • Gut health fact check
      • Heart health fact check
      • Kidney health fact check
      • Medical education fact check
      • Men's health fact check
      • Respiratory fact check
      • Skin and hair care fact check
      • Vaccine and Immunization fact check
      • Women's health fact check
  • AYUSH
    • Ayurveda
    • Homeopathy
    • Siddha
    • Unani
    • Yoga
  • State News
      • Andaman and Nicobar Islands
      • Andhra Pradesh
      • Arunachal Pradesh
      • Assam
      • Bihar
      • Chandigarh
      • Chattisgarh
      • Dadra and Nagar Haveli
      • Daman and Diu
      • Delhi
      • Goa
      • Gujarat
      • Haryana
      • Himachal Pradesh
      • Jammu & Kashmir
      • Jharkhand
      • Karnataka
      • Kerala
      • Ladakh
      • Lakshadweep
      • Madhya Pradesh
      • Maharashtra
      • Manipur
      • Meghalaya
      • Mizoram
      • Nagaland
      • Odisha
      • Puducherry
      • Punjab
      • Rajasthan
      • Sikkim
      • Tamil Nadu
      • Telangana
      • Tripura
      • Uttar Pradesh
      • Uttrakhand
      • West Bengal
  • Medical Education
      • Ayush Education News
      • Dentistry Education News
      • Medical Admission News
      • Medical Colleges News
      • Medical Courses News
      • Medical Universities News
      • Nursing education News
      • Paramedical Education News
      • Study Abroad
  • Industry
      • Health Investment News
      • Health Startup News
      • Medical Devices News
      • Pharma News
      • Pharmacy Education News
      • Industry Perspective
  • MDTV
      • Health Dialogues MDTV
      • Health News today MDTV
      • Latest Videos MDTV
      • Latest Webinars MDTV
      • MD shorts MDTV
      • Medical News Today MDTV
      • Medico Legal Update MDTV
      • Top Videos MDTV
      • Health Perspectives MDTV
      • Journal Club MDTV
      • Medical Dialogues Show
This site is intended for healthcare professionals only
LoginRegister
Medical Dialogues
LoginRegister
  • Home
  • Medical news & Guidelines
    • Anesthesiology
    • Cardiology and CTVS
    • Critical Care
    • Dentistry
    • Dermatology
    • Diabetes and Endocrinology
    • ENT
    • Gastroenterology
    • Medicine
    • Nephrology
    • Neurology
    • Obstretics-Gynaecology
    • Oncology
    • Ophthalmology
    • Orthopaedics
    • Pediatrics-Neonatology
    • Psychiatry
    • Pulmonology
    • Radiology
    • Surgery
    • Urology
    • Laboratory Medicine
    • Diet
    • Nursing
    • Paramedical
    • Physiotherapy
  • Health news
    • Doctor News
    • Government Policies
    • Hospital & Diagnostics
    • International Health News
    • Medical Organization News
    • Medico Legal News
    • NBE News
    • NMC News
  • Fact Check
    • Bone Health Fact Check
    • Brain Health Fact Check
    • Cancer Related Fact Check
    • Child Care Fact Check
    • Dental and oral health fact check
    • Diabetes and metabolic health fact check
    • Diet and Nutrition Fact Check
    • Eye and ENT Care Fact Check
    • Fitness fact check
    • Gut health fact check
    • Heart health fact check
    • Kidney health fact check
    • Medical education fact check
    • Men's health fact check
    • Respiratory fact check
    • Skin and hair care fact check
    • Vaccine and Immunization fact check
    • Women's health fact check
  • AYUSH
    • Ayurveda
      • Ayurveda Giuidelines
      • Ayurveda News
    • Homeopathy
      • Homeopathy Guidelines
      • Homeopathy News
    • Siddha
      • Siddha Guidelines
      • Siddha News
    • Unani
      • Unani Guidelines
      • Unani News
    • Yoga
      • Yoga Guidelines
      • Yoga News
  • State News
    • Andaman and Nicobar Islands
    • Andhra Pradesh
    • Arunachal Pradesh
    • Assam
    • Bihar
    • Chandigarh
    • Chattisgarh
    • Dadra and Nagar Haveli
    • Daman and Diu
    • Delhi
    • Goa
    • Gujarat
    • Haryana
    • Himachal Pradesh
    • Jammu & Kashmir
    • Jharkhand
    • Karnataka
    • Kerala
    • Ladakh
    • Lakshadweep
    • Madhya Pradesh
    • Maharashtra
    • Manipur
    • Meghalaya
    • Mizoram
    • Nagaland
    • Odisha
    • Puducherry
    • Punjab
    • Rajasthan
    • Sikkim
    • Tamil Nadu
    • Telangana
    • Tripura
    • Uttar Pradesh
    • Uttrakhand
    • West Bengal
  • Medical Education
    • Ayush Education News
    • Dentistry Education News
    • Medical Admission News
    • Medical Colleges News
    • Medical Courses News
    • Medical Universities News
    • Nursing education News
    • Paramedical Education News
    • Study Abroad
  • Industry
    • Health Investment News
    • Health Startup News
    • Medical Devices News
    • Pharma News
      • CDSCO (Central Drugs Standard Control Organisation) News
    • Pharmacy Education News
    • Industry Perspective
  • Home
  • Orthopaedics
  • Orthopaedics Cases
  • Rare case of bilateral...

Rare case of bilateral atypical subtrochanteric Femoral Fractures in pycnodysostosis patient- a report

Written By : Dr Supreeth D R |Medically Reviewed By : Dr. Kamal Kant Kohli Published On 2022-09-12T20:00:18+05:30  |  Updated On 12 Sept 2022 8:00 PM IST
Rare case of bilateral atypical subtrochanteric Femoral Fractures in pycnodysostosis patient- a report
  • facebook
  • twitter
  • linkedin
  • whatsapp
  • Telegram
  • Email

Pycnodysostosis is a rare sclerotic bone disease caused by a mutation in the cathepsin K gene. Atypical subtrochanteric femoral fractures are a common problem associated with pycnodysostosis. Fracture healing in pycnodysostosis cases is typically inferior. Jin Park et al report a case of bilateral atypical subtrochanteric femoral fractures in one patient with pycnodysostosis.

The right subtrochanteric fracture was treated with open reduction and internal fixation (open plating), and united through primary bone healing, while the left one was treated with closed reduction and internal fixation (submuscular plating), and united through secondary bone healing. Although the time to bony union was delayed, fracture union after extramedullary osteosynthesis was obtained in both atypical fractures, demonstrating that both primary and secondary bone healing is possible in patients with pycnodysostosis.

A 40-year-old woman sustained a right subtrochanteric femoral fracture after falling from a bicycle. The patient did not remember the family history well. There was no history of previous fractures. The patient had abdominal organomegaly, which was suspected to account for the ovarian cystadenoma that was found on abdominal computed tomography.

Physical examination of the fracture site revealed tenderness over the proximal thigh. There was no open wound. There was no distal neurovascular deficit distally. The patient was of short stature (150 cm), had abnormal facial features due to micrognathia, which included a large nose and abnormal dentition.

Radiographs showed common features of atypical subtrochanteric femoral fracture, including transverse fracture, medial and lateral cortical thickening, and medial cortical spike. A subsequent skeletal survey revealed an open fontanelle, an obtuse mandibular angle, cortical thickening in all long bones, widening of the distal femur (similar to the Erlenmeyer flask deformity), and tapering of the distal phalanges on both feet and hands. No hematological abnormalities were observed.

The patient had generalized increased bone density, as measured through bone densitometry. T scores of the lumber spines (L1, L2, L3, and L4) were+4.3,+4.3,+5.8, and+6.1, respectively. Z scores of the lumber spines (L1, L2, L3, L4) were+5.1,+5.2,+6.6, and+7.0, respectively. The patient was diagnosed with pycnodysostosis based on clinical and radiological findings and genetic analysis for cathepsin K mutation. There was an incomplete transverse fracture in the left subtrochanteric area for which the patient refused preventive interventions.

The right subtrochanteric femoral fracture was secured with fracture site compression using a dynamic hip screw without bone graft. Patient was followed up monthly for 6 months and then every 3 months thereafter. Radiographic union developed very slowly, compared to a patient without skeletal abnormalities. Thirty-three months after surgery, the fracture was finally united, as evidenced by the disappearance of the fracture line in at least three cortices. The range of motion of both the knee and hip was full.

Six years after the index injury of the right femur, the patient slipped while walking and sustained a left subtrochanteric femoral fracture. It was then fixed with a submuscular plating technique—the minimally invasive plate osteosynthesis (MIPO) technique—with a non-contact-bridging locking plate. A bone graft was not performed. Again, radiographic union was very slow to develop, similar to the timeframe for the contralateral side. Twenty four months after surgery, bony union was finally achieved.

Final follow-up was done at 2 years after surgery (8 years after the first index surgery). The patient could walk without pain. The range of motion of both the knee and hip was full.

The authors concluded - although time to bony union is much longer in pycnodysostosis patients than in normal patients, fracture union after extramedullary osteosynthesis can be obtained through either primary or secondary bone healing, and secondary bone healing might be advantageous in terms of fracture healing time.

Level of Clinical Evidence: 4

Further reading:

Bilateral Atypical Subtrochanteric Femoral Fractures with Primary and Secondary Bone Healing in Pycnodysostosis

Jin Park, Seung Jin Lee, Hyo Beom Lee, Sung Yup Hong.

Indian Journal of Orthopaedics (2022) 56:1478–1481

https://doi.org/10.1007/s43465-022-00675-8


FemurFracturePycnodysostosisBone healingJin ParkSeung Jin LeeIndian Journal of Orthopaedics
Source : Indian Journal of Orthopaedics
Dr Supreeth  D R
Dr Supreeth D R

    MBBS, Dip. Ortho, DNB ortho, MNAMS

    Dr Supreeth D R (MBBS, Dip. Ortho, DNB ortho, MNAMS) is a practicing orthopedician with interest in medical research and publishing articles. He completed MBBS from mysore medical college, dip ortho from Trivandrum medical college and sec. DNB from Manipal Hospital, Bengaluru. He has expirence of 7years in the field of orthopedics. He has presented scientific papers & posters in various state, national and international conferences. His interest in writing articles lead the way to join medical dialogues. He can be contacted at editorial@medicaldialogues.in.

    Dr. Kamal Kant Kohli
    Dr. Kamal Kant Kohli

    Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751

    Show Full Article
    Next Story

    Editorial

    Real-World Case study: Darbepoetin Alfa for Chemotherapy-Induced Anemia in Metastatic Breast Cancer - Dr Aditya Murali

    Real-World Case study: Darbepoetin Alfa for Chemotherapy-Induced Anemia in Metastatic Breast Cancer...

    Aspirin in Primary Prevention- When to Consider?

    Aspirin in Primary Prevention- When to Consider?

    Featured image representing medico legal

    What's the Role of Expert Opinion in Medical Negligence?

    7- Point Discharge Protocol for AECOPD: Time to Inculcate in Practice

    7- Point Discharge Protocol for AECOPD: Time to Inculcate in Practice

    Aspirin Use in Women Aged 40-50 with Diabetes and Hypertension: Identifying the Ideal Candidates

    Aspirin Use in Women Aged 40-50 with Diabetes and Hypertension: Identifying the Ideal Candidates

    View All

    Journal Club Today

    Real-World Case study: Darbepoetin Alfa for Chemotherapy-Induced Anemia in Metastatic Breast Cancer - Dr Aditya Murali

    Real-World Case study: Darbepoetin Alfa for Chemotherapy-Induced Anemia in Metastatic Breast Cancer...

    View All

    Health News Today

    Health Bulletin 09/ May/ 2025

    Health Bulletin 09/ May/ 2025

    View All
    © 2022 All Rights Reserved.
    Powered By: Hocalwire
    X
    We use cookies for analytics, advertising and to improve our site. You agree to our use of cookies by continuing to use our site. To know more, see our Cookie Policy and Cookie Settings.Ok