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Introduction: Distal tibia involvement is very rare and it merely accounts for around 4% of all the excised lesions. (Mirra, 1989) Distal tibia osteochondromas mainly present pain, deformity like varus/valgus around ankle joint, pathologic fractures of surrounding structures and for the above-mentioned problems, surgical excision has to be considered as a possible option. (Ismail et al., 2008).

Methods: We conducted a prospective study from 1st June 2018 to 1st June 2021 including five patients (4 males and 1 female) with distal tibia osteochondroma. In our study, surgical excision was performed in all the cases. Pre-operative and at final follow-up ‘AOFAS-AHFS score’ and ‘VAS score’ were evaluated.

Results: All five patients had good functional outcome at final follow-up, mean AOFAS-AHFS score improved from 61.2±5.4 to 85±3.39, and mean VAS score improved from 7.2±0.83 to 0.8±0.44 at final follow-up and found no difficulty in daily routine activities. All patients had complete ROM at final follow-up.

Conclusion: Distal tibia osteochondroma has good functional outcome and less complications, if managed properly.

Osteochondroma rarely develops from the carpal bones. We report a first case in which a dorsal osteochondroma of the lunate caused attritional rupture of the tendon of the extensor indicis proprius and a tendon of the extensor digitorum communis of index finger.

Osteochondromatas of bicipital tuberosity are rare, most commonly occurring as metaphyseal benign tumours of the long bones. The usual presenting symptoms are pain and reduced rotation of the elbow. A painful clunk in the wrist as a presenting symptom has not been described before.

We present a young lady with a two-year history of a painful clunk in her wrist. Her case presented a diagnostic challenge, as the pain and the click originated from her elbow and radiated down her forearm to the wrist. She underwent several radiological studies, and examination under anaesthesia confirmed the diagnosis. Excision was performed resulting in complete resolution of her symptoms.

Along with painful clunk in the wrist originating from the elbow, an enlarged radial tuberosity should raise a high index of suspicion, and MRI scans and examination under image intensification can aid in the diagnosis of radial tuberosity osteochondroma.

We report the case of a painless deforming subungual mass at the nail tip, progressively enlarging over three months. Radiographs showed an extra-osseous ossification. Intraoperatively this was found to be a bony mass arising from the sterile matrix. Unusual extra-osseous ossification in the finger is rare and this case highlights the need of this benign lesion to be considered when a patient presents with finger swellings.

Osteochondroma is the most common benign bone tumor. Lesions occurring at the carpal bones are extremely rare. There are very few cases of osteochondroma at the trapezium had been reported in the English literature. We reported a 47-year-old patient with an osteochondroma of the left trapezium presented with painful snapping of abductor pollicis longus tendon.

Extra skeletal osteochondroma is a rare soft tissue tumor. We report a case of extra skeletal osteochondroma in the tendon sheath of tibialis anterior tendon near the left ankle joint in a 7 year old child. The diagnosis of soft tissue osteochondroma should be considered when a well defined bony mass is located in the soft tissue. It must be differentiated from other causes of soft tissue calcification as myositis ossificans, synovial (osteo) chondromatosis, tumor calcinosis; synovial sarcoma, extra skeletal osteosarcoma & other causes of heterotopic ossification.

Osteochondromas are common benign bone tumors. They may occur on any bone preformed in cartilage, but usually are found on the metaphysis of a long bone near the physis. In this article, we report a case of the subluxation of the radial head caused by osteochondroma on the radial tuberosity. A 9-year-old female patient presented with a hard palpable mass and pain in her posterior aspect of left elbow joint. Preoperative radiography and MRI demonstrated an expansile bone lesion arising in the left radial tuberosity of the proximal radius. Resection of the bone tumor was done without any complications. Biopsy confirmed the diagnosis of osteochondroma without malignant degeneration. A one year after surgery, the elbow had full range of motion without any discomfort and complication.

Although osteochondroma is a benign bone tumor often observed in daily practice, solitary osteochondroma of the bicipital tuberosity is rarely observed. Herein, we report a case of bilateral solitary osteochondroma of the bicipital tuberosity. A 76-year-old woman experienced crackling and painful clicking bilaterally in her proximal forearms during pronation-supination. X-ray imaging, computed tomography, and magnetic resonance imaging revealed that the symptom was caused by bilateral solitary osteochondroma of the bicipital tuberosity. Bone tumor resection was performed on both sides. After surgery, the symptoms improved. X-ray imaging performed 2 years after surgery revealed no tumor recurrence. When painful clicking occurs around the elbow joint, a solitary osteochondroma of the bicipital tuberosity should be suspected; this symptom should be examined, and the surgeon should consider surgery positively. Exposed subchondral bone may rub against, collide with, or impinge upon the ulna during forearm pronation-supination and induce pain.

Background: Radial head dislocation in patients with multiple hereditary exostoses (MHE) is associated with loss of function and cosmetic problems. The treatment of the deformity with radial head dislocation is difficult and the timing of surgical intervention is important. The aim of this study was to evaluate the factors predictive of radial head dislocation in patients with MHE.

Methods: Patients diagnosed with forearm deformity due to MHE between 1995 and 2021 were retrospectively evaluated. Radiographic parameters including radial bow (RB), ulnar bow (UB), total radial bow (TRB), total ulnar bow (TUB), percent ulnar length (PUL), ulnar shortening (US), radial articular angle (RAA), modified Masada classification and irregularity of proximal radioulnar joint (PRUJ) of the dislocated group (group D), that is subluxation or dislocation of the radial head, and the located group (group L) were compared.

Results: A total of 18 patients and 25 limbs (5 girls and 13 boys) with a mean age of 10.5 years were included. There were significant differences in TUB (22.8° ± 5.6° vs. 10.7° ± 6.5°), PUL (97.5% ± 5.5% vs. 108.2% ± 7.7%) between group D and group L (p < 0.05). Moreover, irregularity of PRUJ on radiographs was more in group D (p < 0.05).

Conclusions: It is possible that appropriate radiographic assessment in relation to radial head dislocation may prevent delayed surgical treatment of forearm deformities in MHE.

Level of Evidence: Level IV (Diagnostic)