NEET-PG 2012 - Orthopaedics PYQs Practice Questions

Q: One of the common fractures that occur during boxing by hitting with a closed fist is:

Bennett's fracture dislocation. ***Bennett's fracture dislocation*** - This is an **intra-articular fracture** of the base of the **first metacarpal**, extending into the carpometacarpal (CMC) joint. - It is frequently caused by axial compression with the thumb in a flexed and adducted position, a common injury mechanism in **punching a hard object** during boxing. *Monteggia fracture dislocation* - This injury involves a fracture of the **proximal ulna** coupled with an **anterior dislocation of the radial head**. - It is typically caused by a direct blow to the forearm or a fall on an outstretched hand with a hyperpronated forearm, not a direct punch. *Galeazzi fracture dislocation* - This involves a fracture of the **distal radius** with an associated **dislocation of the distal radioulnar joint (DRUJ)**. - It results from a fall on an outstretched hand with a hyperpronated forearm, which is not consistent with a boxing injury. *Smith's fracture* - Also known as a **reverse Colles' fracture**, this is a fracture of the **distal radius** with **volar displacement of the distal fragment**. - It typically results from a fall on a flexed wrist or a direct blow to the back of the wrist, not a punching injury. [Practice more Orthopaedics PYQs on OnCourse]

Q: Which of the following conditions can cause locking of the knee joint?

Loose body in knee joint. ***Loose body in knee joint*** - A **loose body** (e.g., a fragment of cartilage or bone) can get trapped between the articular surfaces of the knee joint, mechanically obstructing its movement and causing sudden, painful **locking**. - This mechanical impingement prevents full extension or flexion of the knee until the loose body shifts, leading to episodic locking symptoms. *Osgood Schlatter* - This condition involves inflammation and potential avulsion of the **tibial tuberosity** where the patellar tendon inserts. - It primarily causes pain and swelling below the kneecap, especially during physical activity, but does not typically result in true mechanical locking of the joint. *Tuberculosis of knee* - **Tuberculosis of the knee joint** is an infectious arthritis that causes chronic pain, swelling, and gradual destruction of articular cartilage and bone. - While it can lead to pain and limited range of motion, it usually does not present with the sudden, intermittent mechanical locking characteristic of a loose body. *a and b both* - Neither **Osgood Schlatter** nor **Tuberculosis of the knee** typically cause the characteristic mechanical locking sensation described for a loose body in the joint. - Each of these conditions has distinct pathophysiological mechanisms and clinical presentations that do not involve a physical obstruction causing locking. [Practice more Orthopaedics PYQs on OnCourse]

Q: Tardy ulnar nerve palsy is specifically associated with which type of fracture?

Lateral condyle fracture of the humerus. ***Lateral condyle fracture of the humerus*** - This fracture, especially in children, can lead to **cubitus valgus deformity** as a long-term complication if it heals incorrectly. - The resulting **valgus angulation** at the elbow abnormally stretches the ulnar nerve behind the medial epicondyle, causing **tardy ulnar nerve palsy** years after the initial injury. *Medial condyle fracture of the humerus* - While close to the ulnar nerve, medial condyle fractures are more likely to cause **immediate nerve damage** due to direct impingement, rather than delayed or "tardy" palsy from chronic stretching. - Complications typically involve varus deformity, which does not commonly stretch the ulnar nerve in the same manner as valgus. *Fracture of the humeral shaft* - This type of fracture is more commonly associated with **radial nerve injury** (e.g., wrist drop), especially in fractures of the mid-shaft. - It does not typically lead to long-term deformities at the elbow that would cause **delayed ulnar nerve compression**. *Fracture of the radial shaft* - Radial shaft fractures (e.g., Monteggia, Galeazzi) primarily affect the **radial nerve** or the **posterior interosseous nerve**. - They do not directly involve the elbow joint in a manner that would cause **tardy ulnar nerve palsy**. [Practice more Orthopaedics PYQs on OnCourse]

Q: Commonest ligament injured in ankle injury ?

Anterior talofibular ligament. ***Anterior talofibular ligament*** - The **anterior talofibular ligament (ATFL)** is the **most frequently injured ligament** in ankle sprains because it is the weakest and most commonly stretched during **inversion injuries**. - Its position makes it vulnerable during movements where the foot rolls inward, a common mechanism for ankle sprains. *Calcaneofibular ligament* - The **calcaneofibular ligament (CFL)** is stronger than the ATFL and is typically injured with more severe inversion forces, often in conjunction with ATFL rupture. - While it plays a crucial role in ankle stability, it is not the *most* commonly injured ligament. *Posterior talofibular ligament* - The **posterior talofibular ligament (PTFL)** is the strongest of the lateral ankle ligaments and is rarely injured in isolated ankle sprains. - Its injury usually signifies a **severe ankle sprain** with significant talar displacement or dislocation. *Spring ligament* - The **spring ligament**, also known as the **plantar calcaneonavicular ligament**, is located on the medial side of the foot and supports the medial longitudinal arch. - It is not directly involved in typical ankle sprains, which primarily affect the lateral collateral ligaments. [Practice more Orthopaedics PYQs on OnCourse]

Q: Which of the following is NOT a symptom of carpal tunnel syndrome?

Ulnar nerve dysfunction. ***Ulnar nerve dysfunction*** - Carpal tunnel syndrome specifically involves compression of the **median nerve**, not the ulnar nerve. - Symptoms related to the median nerve include numbness and tingling in the **thumb, index, middle, and radial half of the ring finger**, along with **thenar muscle wasting**. *Tinel sign* - The **Tinel sign** is a common physical examination finding in carpal tunnel syndrome, elicited by tapping over the **median nerve** at the wrist. - A positive sign involves tingling or electric shock-like sensations in the **median nerve distribution**. *Phalen's sign* - **Phalen's sign** is another classic physical maneuver used to diagnose carpal tunnel syndrome, where exaggerated wrist flexion for 60 seconds reproduces symptoms. - This maneuver increases pressure within the **carpal tunnel**, exacerbating median nerve compression. *Pain & paraesthesia of wrist* - **Pain and paraesthesia (numbness and tingling)** in the wrist and hand are hallmark symptoms of carpal tunnel syndrome. - These symptoms are often worse at night or with repetitive hand movements, reflecting **median nerve irritation**. [Practice more Orthopaedics PYQs on OnCourse]

Question 1

One of the common fractures that occur during boxing by hitting with a closed fist is:

Accepted Answer

Bennett's fracture dislocation

Answer

Monteggia fracture dislocation

Answer

Galeazzi fracture dislocation

Answer

Smith's fracture

Question 2

Which of the following conditions can cause locking of the knee joint?

Accepted Answer

Loose body in knee joint

Answer

Osgood Schlatter

Answer

Tuberculosis of knee

Answer

a and b both

Question 3

Tardy ulnar nerve palsy is specifically associated with which type of fracture?

Accepted Answer

Lateral condyle fracture of the humerus

Answer

Medial condyle fracture of the humerus

Answer

Fracture of the humeral shaft

Answer

Fracture of the radial shaft

Question 4

Commonest ligament injured in ankle injury ?

Accepted Answer

Anterior talofibular ligament

Answer

Calcaneofibular ligament

Answer

Posterior talofibular ligament

Answer

Spring ligament

Question 5

Which of the following is NOT a symptom of carpal tunnel syndrome?

Accepted Answer

Ulnar nerve dysfunction

Answer

Phalen's sign

Answer

Pain & paraesthesia of wrist

Answer

Tinel sign

Question 6

Fairbank triangle is seen in

Accepted Answer

Congenital coxa vara

Answer

CDH

Answer

Perthe's disease

Answer

SCFE

Question 7

Apparent lengthening is seen in which stage of TB Hip

Accepted Answer

Stage III

Answer

Stage II

Answer

Stage I

Answer

None of the options

Question 8

Which of the following statements about Pott's spine is false?

Accepted Answer

Always heals by chemotherapy

Answer

There is disc space narrowing on x-ray

Answer

Back pain is an early symptom

Answer

Commonest at dorsolumbar junction

Question 9

Heterotopic ossification is primarily associated with which of the following?

Accepted Answer

Soft tissues

Answer

Bone

Answer

Joint

Answer

None of the options

Question 10

What is the most common complication associated with carpal tunnel release surgery?

Accepted Answer

Finger stiffness

Answer

Malunion

Answer

Avascular necrosis

Answer

Rupture of EPL tendon

NEET-PG 2012 — Orthopaedics