PMC8397412_01
Diagnosis and treatment of clinodactyly deformity in a 2-year-10-month-old boy. The radiograph on presentation showed an outgrowth around the distal end of the third proximal phalanx (A, B). During the surgery, the abnormal mass was resected and a K-wire was implanted to keep the finger straight (C, D). After operation, the radiographs showed good prognosis (E-G). Clinical examination established the diagnosis of clinodactyly deformity of his third finger (H), and also showed essentially normal movement of the upper extremity at the follow-up (I, J).
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The patient was sent to the radiologist for X-ray evaluation (Figures 1A, B). Anteroposterior radiographs of his hands showed of an osseous outgrowth mass from the ulnar aspect of the distal end of the proximal phalange opposite the epiphysis plate (Figures 1A, B). Because the patient had presented with swvere deformity, surgical treatment was considered (Figures 1C-E). An immediate and significant improvement was seen on X-ray, demonstrated postoperatively (Figures 1F, G). The physical examination showed a bending finger which twisted toward the radial side (Figure 1H). A dorsal approach was preferred and the proximal interphalangeal joint capsule was opened (Figure 1I). An immediate and significant improvement was seen on appearance, demonstrated perioperatively and postoperatively (Figure 1J).
The pathology examination of the resected mass showed cartilage map (A, B).
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The pathology showed osteochondroma (Figures 2A, B).
Diagnosis and treatment of clinodactyly deformity in a 4-year-6-month-old girl. X-ray radiography showed a mass protruded into the PIP joint which made the axis declined (A). During the surgery, the abnormal mass was resected without K-wire implantation (B, C). Clinical examination established the diagnosis of clinodactyly deformity of her third finger (D). Pathology examination proved to be osteochondroma (E, F).
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An accessory growth protrusion in the distal end of the proximal third phalanx was proven by radiographys (Figure 3A). K-wire was not applied in this surgery (Figures 3B, C). At 4 years of age, the mass was discovered on the third finger of her left hand and an axis line deflection was denoted (Figure 3D). After surgery, a histopathology confirmed the osteochondroma (Figures 3E, F).
PMC8397412_02
Diagnosis and treatment of clinodactyly deformity in an 11-year-old boy. The radiograph on presentation showed an outgrowth around the distal end of the fourth proximal phalanx (A). During the surgery, the abnormal mass was resected and a K-wire was implanted to keep the finger straight (B). Clinical examination established the diagnosis of clinodactyly deformity of his third finger (C). Pathology examination proved to be osteochondroma (D).
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Plain radiography of left hand showed a mass-like tumor arising from the dotsalradio portion of the head of the fourth proximal phalanx (Figure 4A). We also found several osteochondromas located at the metaphysis of radius and ulnar bones (Figure 4A). The tumor was completely excised, and a K-wire was implanted to make the finger straight (Figure 4B). On physical examination, extension was limited to 30  compared to the other side (Figure 4C). A general histopathology confirmed the diagnosis of osteochondroma after surgery (Figure 4D).