Surgical hip dislocation for the phosphaturic mesenchymal tumor of the femoral head and neck: a clinical outcome analysis.
4 affiliations
- 1Department of Orthopedics, the Second Xiangya Hospital of Central South University, 139# Middle Renmin Road, Changsha, 410011, Hunan, PR China.
- 2Department of Orthopedics, Chenzhou First People's Hospital, Chenzhou, 423000, Hunan, China. [email protected].
- 3Department of Orthopedics, the Second Xiangya Hospital of Central South University, 139# Middle Renmin Road, Changsha, 410011, Hunan, PR China. [email protected].
- 4Department of Orthopedics, the Second Xiangya Hospital of Central South University, 139# Middle Renmin Road, Changsha, 410011, Hunan, PR China. [email protected].
Abstract
Background
This retrospective study aimed to characterize the clinical, radiographic, and biochemical outcomes of surgical hip dislocation (SHD) combined with intralesional curettage and bone grafting for the treatment of phosphaturic mesenchymal tumors (PMT) of the femoral head and neck.Methods
A total of 7 patients with PMT of the femoral head and neck confirmed by pathology (mean lesion length 18.8 mm) were treated in our hospital between January 2018 and December 2023. All patients underwent SHD combined with tumor curettage and bone grafting. Preoperative and postoperative assessments included radiographs/MRI for union, recurrence, avascular necrosis (Steinberg grade), secondary osteoarthritis (Tönnis grade), and clinical outcomes by visual analog scale (VAS), Musculoskeletal Tumor Society scoring system (MSTS) and modified Harris Hip Score (mHHS).Results
All patients underwent SHD with intralesional curettage and bone grafting. Over a mean 42-month follow-up, no local recurrence or distant metastasis occurred. All graft sites achieved radiographic union. The Tönnis grade remained unchanged in six patients, whereas one patient showed progression from grade 1 to grade 2. The same patient also showed progression of femoral head osteonecrosis from Steinberg stage 0 to stage I. Pain and functional scores improved at the final follow-up: median VAS decreased from 4.0 to 1.0, median MSTS increased from 18.0 to 27.0, and median mHHS improved from 75.0 to 85.0. Serum phosphate levels improved postoperatively and normalized during follow-up.Conclusion
SHD combined with intralesional curettage and bone grafting may represent a viable hip-preserving treatment option for patients with PMT involving the femoral head and neck. However, these findings warrant further validation in larger cohorts with longer follow-up periods.
Related
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- Importance of correct femoral tunnel placement to avoid MPFL graft failure: a case report of habitual patellar dislocation after proximal physis fixation.
- OTA 33-B1 intra-articular fracture of the distal femur of the lateral femoral condyle involving both weight-bearing and non-weight-bearing surfaces after acute patellar dislocation: a case report and literature review.
BibTeX
@article{zhou2026surgical,
title = {{Surgical hip dislocation for the phosphaturic mesenchymal tumor of the femoral head and neck: a clinical outcome analysis.}},
author = {Yanlin Zhou and Yacheng Li and Xibei Liao and Lu Wang and Xianzhe Tang and Xianghong Zhang and Tang Liu},
journal = {BMC musculoskeletal disorders},
year = {2026},
month = aug,
doi = {10.1186/s12891-026-10319-9},
url = {https://europepmc.org/article/MED/42958204},
note = {CC BY-NC-ND},
}
RIS
TY - JOUR
TI - Surgical hip dislocation for the phosphaturic mesenchymal tumor of the femoral head and neck: a clinical outcome analysis.
AU - Yanlin Zhou
AU - Yacheng Li
AU - Xibei Liao
AU - Lu Wang
AU - Xianzhe Tang
AU - Xianghong Zhang
AU - Tang Liu
PY - 2026
DA - 2026/08/04
JO - BMC musculoskeletal disorders
DO - 10.1186/s12891-026-10319-9
UR - https://europepmc.org/article/MED/42958204
AB - Background This retrospective study aimed to characterize the clinical, radiographic, and biochemical outcomes of surgical hip dislocation (SHD) combined with intralesional curettage and bone grafting for the treatment of phosphaturic mesenchymal tumors (PMT) of the femoral head and neck.Methods A total of 7 patients with PMT of the femoral head and neck confirmed by pathology (mean lesion length 18.8 mm) were treated in our hospital between January 2018 and December 2023. All patients underwent SHD combined with tumor curettage and bone grafting. Preoperative and postoperative assessments included radiographs/MRI for union, recurrence, avascular necrosis (Steinberg grade), secondary osteoarthritis (Tönnis grade), and clinical outcomes by visual analog scale (VAS), Musculoskeletal Tumor Society scoring system (MSTS) and modified Harris Hip Score (mHHS).Results All patients underwent SHD with intralesional curettage and bone grafting. Over a mean 42-month follow-up, no local recurrence or distant metastasis occurred. All graft sites achieved radiographic union. The Tönnis grade remained unchanged in six patients, whereas one patient showed progression from grade 1 to grade 2. The same patient also showed progression of femoral head osteonecrosis from Steinberg stage 0 to stage I. Pain and functional scores improved at the final follow-up: median VAS decreased from 4.0 to 1.0, median MSTS increased from 18.0 to 27.0, and median mHHS improved from 75.0 to 85.0. Serum phosphate levels improved postoperatively and normalized during follow-up.Conclusion SHD combined with intralesional curettage and bone grafting may represent a viable hip-preserving treatment option for patients with PMT involving the femoral head and neck. However, these findings warrant further validation in larger cohorts with longer follow-up periods.
SN - 1471-2474
ER -