Kisho is an information platform, not a medical provider. Nothing on this site constitutes medical advice, diagnosis, or treatment recommendations. All content is aggregated from publicly available sources (including ClinicalTrials.gov, PubMed, FDA.gov, and Orphanet) and is provided for informational purposes only. Clinical trial eligibility, treatment decisions, and any health-related actions should always be discussed with a qualified healthcare professional. Kisho does not endorse any specific therapy, organization, or clinical trial. Terms of use · Privacy policy
A condition that is characterized by defective bone growth that affects the growth centers of bone.
No HPO annotations are available for this condition.
Spondylometaphyseal dysplasia, corner fracture type (SMDCF) is characterized by short stature and a waddling gait in early childhood. Short stature may be present at birth or develop in early infancy. Individuals may present with short limbs and/or short trunk. Complications include coxa vara, scoliosis, and chronic pain. Some individuals have ocular manifestations. To date, approximately 50 individuals with spondylometaphyseal dysplasia, corner fracture type (SMDCF) have been reported. A heterozygous COL2A1 or FN1 pathogenic variant has been identified in 23 individuals with SMDCF [, , , , , , ]. The following description of the phenotypic features associated with this condition is based on these reports. Two affected individuals had no detailed clinical description . Table 2. Spondylometaphyseal Dysplasia, Corner Fracture Type: Frequency of Select Features
Formal diagnostic criteria for spondylometaphyseal dysplasia, corner fracture type (SMDCF) have not been established.
SMDCF should be suspected in individuals with the following clinical and radiographic features and family history.
Clinical features
Mild-to-moderate short stature noted at birth in some individuals with short lower extremities and/or short trunk
No approved treatments are currently available for osteochondrosis. The disease remains an area of unmet medical need.
No clinical practice guidelines for spondylometaphyseal dysplasia, corner fracture type (SMDCF) have been published. In the absence of published guidelines, the following recommendations are based on the authors' personal experience managing individuals with this disorder. Evaluations Following Initial Diagnosis To establish the extent of disease and needs in an individual diagnosed with SMDCF, the evaluations summarized (if not performed as part of the evaluation that led to the diagnosis) are recommended. Table 5. Spondylometaphyseal Dysplasia, Corner Fracture Type: Recommended Evaluations Following Initial Diagnosis
To monitor existing manifestations, the individual's response to supportive care, and the emergence of new manifestations, the evaluations summarized in are recommended. Table 7. Spondylometaphyseal Dysplasia, Corner Fracture Type: Recommended Surveillance
1 clinical trial registered. Pipeline includes 1 NA.
165 publications have been identified in PubMed for osteochondrosis. Research spans Review / Meta-Analysis (27%), Case Report / Case Series (19%), and Basic Science / Preclinical (19%).
Research Type | Count | % of Total |
|---|---|---|
Research summaries | 44 | 27% |
Data assembled from 5 of 12 sources · Last updated Sep 18, 2026, 7:11 PM UTC
European rare disease database
Genetic and Rare Diseases Info Center
Feature | Proportion of Persons w/Feature | Comment |
|---|---|---|
Abnormal metaphyses | 20/20 | — |
Short stature | 19/21 | — |
Short upper extremities | 3/3 | — |
Short lower extremities | 6/7 | — |
Short trunk | 4/6 | — |
Vertebral anomalies | 17/20 | — |
Scoliosis | 16/20 | Mild to severe |
Pectus carinatum | 7/15 | — |
Coxa vara | 10/19 | Typically identified by age 6 yrs |
Abnormal gait | 9/9 | — |
Musculoskeletal pain | 7/7 | Only reported in persons w/FN1-related SMDCF |
Limited mobility | 4/5 | Secondary to pain /or limb deformity |
Genu varum | 10/20 | — |
Genu valgum | 5/20 | — |
Leg length discrepancy | 4/4 | — |
Accentuated lumbar lordosis | 3/4 | — |
Premature birth | 9/15 | — |
Vision impairment | 3/6 | Myopia, borderline intraocular pressure, Brown syndrome |
Dysmorphic features | 5/6 | Only reported in persons w/FN1-related SMDCF Presentation. Individuals with SMDCF present at birth or in early childhood with short stature , scoliosis, variable genu varum or valgum, developmental coxa vara, and pectus carinatum. |
Source: GeneReviews — "Spondylometaphyseal Dysplasia, Corner Fracture Type"
Mild-to-severe scoliosis
Genu varum or valgum
Pectus carinatum
Limited mobility and/or musculoskeletal pain
Vision impairment (e.g., myopia, borderline increased intraocular pressure, Brown syndrome [strabismus caused by dysfunction of the superior oblique muscle])
Normal hearing
Normal intelligence
Radiographic features
Source: GeneReviews — "Spondylometaphyseal Dysplasia, Corner Fracture Type"
Genetic disorders with overlapping clinical and radiographic features of spondylometaphyseal dysplasia, corner fracture type (SMDCF) include those listed in . Table 4. Genes of Interest in the Differential Diagnosis of Spondylometaphyseal Dysplasia, Corner Fracture Type
Gene | Disorder | MOI | Features of Disorder |
|---|---|---|---|
ATP7A | Menkes disease (See ATP7A-Related Copper Transport Disorders.) | XL | Short stature |
CFAP410 | CFAP410-related axial spondylometaphyseal dysplasia (OMIM 602271) | AR | Short stature, short limbs; Platyspondyly, coxa vara, metaphyseal dysplasia, short metacarpals |
Schmid metaphyseal chondrodysplasia | AD | Short stature; Platyspondyly, corner fracture-like lesions, metaphyseal abnormalities, coxa vara, genu varum | End plate irregularities, metaphyseal abnormalities of phalanges metacarpals GALNS |
Mucopolysaccharidosis type IVA | AR | Short stature, scoliosis, short trunk, pectus carinatum, joint pain, normal intelligence | Coarse facial features, corneal opacities, hearing loss, hepatomegaly, hypermobile joints, abnormal glycosaminoglycan excretion in urine; Cervical subluxation, rib abnormalities, compression of spinal cord, epiphyseal involvement, coxa valga, hip dislocation, ulnar deviation of wrists |
PCYT1A | PCYT1A-related spondylometaphyseal dysplasia w/cone-rod dystrophy (OMIM 608940) | AR | Short stature, scoliosis, short limbs; Ovoid vertebral bodies, platyspondyly, coxa vara, metaphyseal involvement, tibial femoral bowing |
PTH1R-related metaphyseal chondrodysplasia, Jansen type | AD | Short stature, facial dysmorphism; Corner fracture-like lesions, osteopenia | Choanal stenosis, deafness, nephrocalcinosis, hypercalcemia, hypophosphatemia SBDS(EFL1DNAJC21SRP54)2 |
Shwachman-Diamond syndrome | AR3 | 50% of affected children are below 3rd centile for height.; Ovoid vertebral bodies, coxa vara, metaphyseal dysplasia of long bones, osteoporosis | Small head circumference, poor weight gain, exocrine pancreatic deficiency, bone marrow failure, cognitiv... |
Source: GeneReviews — "Spondylometaphyseal Dysplasia, Corner Fracture Type"
Biomarker and diagnostic research for osteochondrosis has been reported in the published literature.
System | Evaluation | Comment |
|---|---|---|
Musculoskeletal | Referral to orthopedic surgeon, physiatrist, PT depending on local practices | To evaluate for scoliosis, mobility issues, other skeletal manifestations; If atlantoaxial instability is present, eval by anesthesiologist pulmonary assessment (when indicated) prior to any surgery2 |
Ophthalmology | Referral to ophthalmologist for vision assessment | Incl eval of intraocular pressure in persons w/FN1-related SMDCF3 |
Cardiovascular | Eval of blood pressure | In persons w/FN1-related SMDCF3 |
Respiratory | Eval by pulmonologist | Recommended for those w/COL2A1-related SMDCF4 |
Genetic counseling | By genetics professionals5 | To obtain a pedigree inform affected persons their families re nature, MOI, implications of SMDCF to facilitate medical personal decision making |
Psychosocial support resources | Referral to psychology /or other resources for support | For issues related to short stature, joint pain, limited mobility MOI = mode of inheritance; PT = physical therapist; SMDCF = spondylometaphyseal dysplasia, corner fracture type 1. Recommendations are based on two individuals reported with this feature. 2. 3. |
Spondylometaphyseal Dysplasia, Corner Fracture Type: Treatment of Manifestations Manifestation/Concern | Treatment | References |
Scoliosis | Treatment per orthopedist | — |
Coxa vara | Surgical treatment per orthopedist | — |
Joint pain/ Limited mobility | Mgmt per physiatrist PT; surgical treatment by orthopedist | — |
Genu valgum/varum | Surgical treatment per orthopedist | , Bowing of tibia |
Vision impairment /or glaucoma | Mgmt per ophthalmologist | — |
Hypertension | Mgmt per internist /or cardiologist | In persons w/FN1-related SMDCF1 |
Psychosocial issues | Mgmt by psychotherapist /or referral to support groups | PT = physical therapist 1. Note: For individuals with COL2A1-related SMDCF, there is no evidence that treatment with human growth hormone supplementation increases final height ; therefore, it is not recommended. |
Spondylometaphyseal Dysplasia, Corner Fracture Type: Recommended Surveillance System/Concern | Evaluation | Frequency |
Musculoskeletal | Eval by orthopedic surgeon physiatrist depending on local practices for scoliosis, other skeletal manifestations, mobility issues, chronic joint pain | Annually |
Glaucoma | Eval of intraocular pressure1 | Annually in those w/FN1-related SMDCF Hypertension |
Psychosocial | Assessment for psychosocial issues | Annually 1. |
Source: GeneReviews — "Spondylometaphyseal Dysplasia, Corner Fracture Type"
Avoid contact sports if atlantoaxial instability is present. For individuals with joint pain, avoid activities that strain joints; instead, favor joint-friendly activities (e.g., swimming, cycling).
Source: GeneReviews — "Spondylometaphyseal Dysplasia, Corner Fracture Type"
Search ClinicalTrials.gov in the US and EU Clinical Trials Register in Europe for access to information on clinical studies for a wide range of diseases and conditions. Note: There may not be clinical trials for this disorder.
Source: GeneReviews — "Spondylometaphyseal Dysplasia, Corner Fracture Type"
1 trial found
Evaluation |
|---|
Frequency |
|---|
Musculoskeletal | Eval by orthopedic surgeon physiatrist depending on local practices for scoliosis, other skeletal manifestations, mobility issues, chronic joint pain | Annually |
Glaucoma | Eval of intraocular pressure1 | Annually in those w/FN1-related SMDCF Hypertension |
Psychosocial | Assessment for psychosocial issues | Annually 1. Recommendations are based on a single individual reported with this feature. |
Source: GeneReviews — "Spondylometaphyseal Dysplasia, Corner Fracture Type"
32 |
19% |
Laboratory research | 32 | 19% |
Disease patterns and progression | 20 | 12% |
Clinical study results | 16 | 10% |
Testing and diagnosis research | 13 | 8% |
Other research | 8 | 5% |
Kuik C (2026). [PMID: 41693177](https://pubmed.ncbi.nlm.nih.gov/41693177/). *Journal of proteome research*. [Basic Science / Preclinical]
Tageldeen Mohamed M (2026). [PMID: 41347460](https://pubmed.ncbi.nlm.nih.gov/41347460/). *Journal of pediatric orthopedics*. [Clinical Trial Publication]
Coskun E (2026). [PMID: 41178588](https://pubmed.ncbi.nlm.nih.gov/41178588/). *Journal of pediatric orthopedics*. [Basic Science / Preclinical]
Zillmann CJ (2026). [PMID: 41655365](https://pubmed.ncbi.nlm.nih.gov/41655365/). *Physical therapy in sport : official journal of the Association of Chartered Physiotherapists in Sports Medicine*. [Clinical Trial Publication]
Arvesen JE (2026). [PMID: 42058393](https://pubmed.ncbi.nlm.nih.gov/42058393/). *J Pediatr Soc North Am*. [Review / Meta-Analysis]
Dimnjaković D (2026). [PMID: 42190337](https://pubmed.ncbi.nlm.nih.gov/42190337/). *Knee*. [Review / Meta-Analysis]
Zillmann CJ (2026). [PMID: 42208096](https://pubmed.ncbi.nlm.nih.gov/42208096/). *Musculoskelet Sci Pract*. [Other]
Gultekin O (2026). [PMID: 41531267](https://pubmed.ncbi.nlm.nih.gov/41531267/). *J Pediatr Orthop B*. [Epidemiology / Natural History]
Kajabi AW (2026). [PMID: 42257723](https://pubmed.ncbi.nlm.nih.gov/42257723/). *Skeletal Radiol*. [Epidemiology / Natural History]
Wedderkopp N (2026). [PMID: 41182572](https://pubmed.ncbi.nlm.nih.gov/41182572/). *Sports Med*. [Epidemiology / Natural History]