NEW DELHI || Doctors at Fortis Flt Lt Rajan Dhall Hospital in Vasant Kunj performed a unique and first of its kind procedure to re-construct a jaw using 3D Printing technology here in the city recently. The titanium jaw was constructed using this novel technology and implanted it onto the 30-year-old man from Faridabad.
It gave him complete control over his mouth, which allowed him to chew food properly after seven years since his jaw was removed due to cancer. It also improved his confidence in his appearance. The unique procedure was successfully planned & performed by Dr Mandeep Singh Malhotra, Head of Department (HOD), Head, Neck & Breast Oncoplasty and his team at Fortis Hospital, Vasant Kunj (FHVK).
Prabhjeet – a corporate executive and cancer survivor from Faridabad – had been living without right half of his jawbone for more than seven years. It was removed during surgery along with temporomandibular (TM) joint to cure him of cancer. The TM joint controls the mobility of the jaw. Over the years his residual mandible deviated which prevented lower and upper jaw to meet.
It affected his quality of life as he could not chew or bite his meals and was compelled to eat soft foods like daliya and khichdi. Furthermore, it caused repeated bite ulcers in his cheek leading to pain and fear of cancer relapse. He also has an underlying chronic disease in the form of SLE (Systemic Lupus Erythematosis) that affects immunity.
A CT scan of the face was done and with the help of CT – data models were made. Using the residual left mandible as a template, its mirror image was used to create a skull model with the complete mandible. We studied the prosthetic skull model extensively making sure the occlusion of both upper and lower jaw is in place. Then, a prosthetic model of an actual implant to be used was developed which helped us study the functioning and aesthetics.
We planned the insertion of both the implant and creation of new TM joint on skull models. This process extended across more than 9 months. Prabhat and Dr Neha put in intense effort to achieve the right alignment. The models of the prosthetic mandible were also revised multiple times. The effort was to make the new jaw better than the normal. Finally, after multiple trials we got the implant printed by 3D technology into actual biocompatible titanium.
On the reconstruction surgery, Dr Malhotra further added, “Simultaneous to our planning the patient was given splints and was inducted into intensive physiotherapy. The trial models for the prosthetic mandible were revised at different time intervals as the jaws got aligned. This process extended across 9 months. Prabhat and my colleague Dr Neha put in intense effort to achieve the right alignment. Our effort was to make the new jaw better than the normal.
During the surgery, due to previous radiation therapy and surgery, there was extensive fibrosis and dissection was clinically difficult. A major problem encountered was the risk of injury to the facial nerve which is responsible for the facial expressions and movements. The nerve was carefully isolated and the joint component was fixed in place. The prosthetic titanium neo jaw was successfully inserted. The new TM joint was created, and the mobility of the lower jaw was thoroughly checked. The surgery went for around 8 hrs, it involved a very meticulous effort from identifying every nerve branch to placing each screw exactly as planned.
After doing an extensive review of medical journals, we claim that this kind procedure is first of its kind. It involves reconstructing a jaw bone in secondary settings (the original jaw bone has been removed at another point of time, the patient has been living with the handicap and disfigurement), the jaw bone along with the joint is reconstructed (post-cancer we could not find any report of joint being brought back) and it is complete prosthetic jaw replacement without involving any loss of any other bone of patient.”