Abstract
Objective:To describe the imaging findings of patients treated with subchondroplasty (SCP) of the ankle and hindfoot. Materials and Methods: Eighteen patients (10 men, 8 women; age mean 43.1 years [range 20.1-67.7 years]) underwent ankle and hindfoot SCP at a single center over a 14-month period. Imaging data were reviewed retrospectively by 2 radiologists by consensus interpretation, including preoperative radiography (18), computed tomography (CT) (11), and magnetic resonance imaging (MRI) (13) and postoperative radiography (10), CT (4), and MRI (6). Follow-up imaging was acquired 1 month to 1.6 years following SCP. Results: Indications for SCP included symptomatic bone marrow lesions (BMLs) secondary to an osteochondral lesion (OCL) (16/18) or stress fracture (2/18). While focal radiodensity related to the SCP procedure was retrospectively identifiable on postoperative radiography in all except 1 case (10/11), postprocedural findings were not described by the interpreting radiologist in 6/11 cases. On CT, the average injected synthetic calcium phosphate (CaP) volume was 1.15 cm3 (SD = 0.33 cm3); mean CT attenuation of the injectate was 1220 HU (range 1058-1465 HU). In all patients who had pre- and postoperative MRI (5/18), BML size decreased on follow-up MRI. Extra-osseous extrusion of CaP was not seen on postoperative radiography, CT, or MRI. Conclusion: Physicians should be aware of the expanding preoperative indications and postoperative imaging findings of SCP, which is being performed with increasing frequency in the ankle and hindfoot. Levels of Evidence: Diagnostic, Level III: Retrospective cohort study.
| Original language | English (US) |
|---|---|
| Journal | Foot and Ankle Specialist |
| DOIs | |
| State | Accepted/In press - Jan 1 2019 |
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Keywords
- ankle
- arthritis and joint disease
- bone
- bone healing
- comorbid conditions
- diagnostic and therapeutic techniques
- heel
- magnetic resonance imaging (MRI)
- MRI diagnoses
- orthobiologics
- rearfoot
ASJC Scopus subject areas
- Surgery
- Podiatry
- Orthopedics and Sports Medicine
Cite this
Subchondroplasty of the Ankle and Hindfoot for Treatment of Osteochondral Lesions and Stress Fractures : Initial Imaging Experience. / McWilliams, Geoffrey D.; Yao, Lawrence; Simonet, Luke B.; Haysbert, Connor W.; Giza, Eric; Kreulen, Christopher; Boutin, Robert D.
In: Foot and Ankle Specialist, 01.01.2019.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Subchondroplasty of the Ankle and Hindfoot for Treatment of Osteochondral Lesions and Stress Fractures
T2 - Initial Imaging Experience
AU - McWilliams, Geoffrey D.
AU - Yao, Lawrence
AU - Simonet, Luke B.
AU - Haysbert, Connor W.
AU - Giza, Eric
AU - Kreulen, Christopher
AU - Boutin, Robert D
PY - 2019/1/1
Y1 - 2019/1/1
N2 - Objective:To describe the imaging findings of patients treated with subchondroplasty (SCP) of the ankle and hindfoot. Materials and Methods: Eighteen patients (10 men, 8 women; age mean 43.1 years [range 20.1-67.7 years]) underwent ankle and hindfoot SCP at a single center over a 14-month period. Imaging data were reviewed retrospectively by 2 radiologists by consensus interpretation, including preoperative radiography (18), computed tomography (CT) (11), and magnetic resonance imaging (MRI) (13) and postoperative radiography (10), CT (4), and MRI (6). Follow-up imaging was acquired 1 month to 1.6 years following SCP. Results: Indications for SCP included symptomatic bone marrow lesions (BMLs) secondary to an osteochondral lesion (OCL) (16/18) or stress fracture (2/18). While focal radiodensity related to the SCP procedure was retrospectively identifiable on postoperative radiography in all except 1 case (10/11), postprocedural findings were not described by the interpreting radiologist in 6/11 cases. On CT, the average injected synthetic calcium phosphate (CaP) volume was 1.15 cm3 (SD = 0.33 cm3); mean CT attenuation of the injectate was 1220 HU (range 1058-1465 HU). In all patients who had pre- and postoperative MRI (5/18), BML size decreased on follow-up MRI. Extra-osseous extrusion of CaP was not seen on postoperative radiography, CT, or MRI. Conclusion: Physicians should be aware of the expanding preoperative indications and postoperative imaging findings of SCP, which is being performed with increasing frequency in the ankle and hindfoot. Levels of Evidence: Diagnostic, Level III: Retrospective cohort study.
AB - Objective:To describe the imaging findings of patients treated with subchondroplasty (SCP) of the ankle and hindfoot. Materials and Methods: Eighteen patients (10 men, 8 women; age mean 43.1 years [range 20.1-67.7 years]) underwent ankle and hindfoot SCP at a single center over a 14-month period. Imaging data were reviewed retrospectively by 2 radiologists by consensus interpretation, including preoperative radiography (18), computed tomography (CT) (11), and magnetic resonance imaging (MRI) (13) and postoperative radiography (10), CT (4), and MRI (6). Follow-up imaging was acquired 1 month to 1.6 years following SCP. Results: Indications for SCP included symptomatic bone marrow lesions (BMLs) secondary to an osteochondral lesion (OCL) (16/18) or stress fracture (2/18). While focal radiodensity related to the SCP procedure was retrospectively identifiable on postoperative radiography in all except 1 case (10/11), postprocedural findings were not described by the interpreting radiologist in 6/11 cases. On CT, the average injected synthetic calcium phosphate (CaP) volume was 1.15 cm3 (SD = 0.33 cm3); mean CT attenuation of the injectate was 1220 HU (range 1058-1465 HU). In all patients who had pre- and postoperative MRI (5/18), BML size decreased on follow-up MRI. Extra-osseous extrusion of CaP was not seen on postoperative radiography, CT, or MRI. Conclusion: Physicians should be aware of the expanding preoperative indications and postoperative imaging findings of SCP, which is being performed with increasing frequency in the ankle and hindfoot. Levels of Evidence: Diagnostic, Level III: Retrospective cohort study.
KW - ankle
KW - arthritis and joint disease
KW - bone
KW - bone healing
KW - comorbid conditions
KW - diagnostic and therapeutic techniques
KW - heel
KW - magnetic resonance imaging (MRI)
KW - MRI diagnoses
KW - orthobiologics
KW - rearfoot
UR - http://www.scopus.com/inward/record.url?scp=85069933918&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85069933918&partnerID=8YFLogxK
U2 - 10.1177/1938640019863252
DO - 10.1177/1938640019863252
M3 - Article
AN - SCOPUS:85069933918
JO - Foot and Ankle Specialist
JF - Foot and Ankle Specialist
SN - 1938-6400
ER -