Study finds, Clinical and Radiological Outcomes After Hook P
A Study was conducted to assess both clinical and radiological long-term outcomes after hook plate osteosynthesis for Neer type II lateral clavicle fractures.

Patients who underwent open reduction internal fixation with a hook plate for displaced fractures of the lateral third of the clavicle (Neer type II) at a single trauma hospital were identified.

At the first of 2 long-term follow-up appointments, bilateral magnetic resonance imaging (MRI) scans and strength measurements were performed, Constant–Murley score, subjective shoulder value (SSV), and Oxford shoulder score (OSS) of both shoulders were obtained. At the second follow-up, specific acromioclavicular (AC) score, SSV, and OSS were obtained.

--21 patients could be included who were available for at least 1 of 2 follow-ups after 7.4 years and 13.9 years.

--Bony union was achieved in all patients (100%) at an average of 3.4 months.

--The hook plate was removed at an average of 5.5 months (±3.3) after initial surgery in all patients.

--No significant side-to-side differences were found in OSS, Constant–Murley score, SSV, and specific AC score and for strength testing and MRI scans.

Long term effects of Neer type II lateral clavicle fractures following hook-plate fixation were consistent with satisfactory clinical findings and shoulder strength without greater x-ray rates of AC joint arthritis, sub-acromial impingement, or rotator cuff lesions. This can be associated with the uniform elimination of early plates after the bony fracture union.